fix: remove accidentally committed tgz and add to .gitignore

小橘 <xiaoju@shazhou.work>

.cursor/rules/global.mdc

@@ -0,0 +1,189 @@
+---
+description: Nerve project coding conventions — style, patterns, and toolchain
+globs: packages/*/src/**/*.ts
+alwaysApply: true
+---
+
+# Nerve Coding Conventions
+
+## Core Concepts
+
+```
+External World → Sense → Signal → Reflex → Workflow → Log
+                  ↑                                     ↑
+              "what to observe"                  "what to do"
+```
+
+**Nerve** is a lightweight observation engine daemon for autonomous agents. It continuously observes external state, reacts to changes via declarative rules, and orchestrates multi-step workflows.
+
+### Key Terms
+
+| Concept | What it is |
+|---------|-----------|
+| **Sense** | A `compute()` function that samples or derives data. Returns `T \| null` — non-null emits a Signal, null is silent. Each Sense has its own SQLite database. |
+| **Signal** | A notification emitted when a Sense returns non-null. Pure fact, no intent. Distributed via an in-memory Signal Bus. Not persisted. |
+| **Reflex** | A declarative trigger (YAML) connecting Senses to actions. Trigger types: `interval` (periodic), `on` (react to Signals). Action types: trigger a Sense, or start a Workflow. |
+| **Workflow** | A stateful multi-step execution. Contains **Roles** (actors with side effects) and a **Moderator** (pure router). Each instance is a **Thread** with a unique `runId`. |
+| **Log** | Immutable audit trail. Records executions, state transitions, errors. **Cannot trigger Reflexes** — prevents feedback loops. |
+| **Engine** | The kernel orchestrating everything. Holds Signal Bus, Reflex Scheduler, Process Manager, Workflow Manager. Never loads user code directly — all user code runs in isolated Workers. |
+| **Daemon** | The `nerve-daemon` package — engine runtime. Runs as a background process. |
+
+### Architecture Rules
+
+- **Three orthogonal extension points**: Sense (what to compute), Reflex (when to compute), Workflow (what to do)
+- **Process isolation**: One worker per Sense group (long-lived), one per Workflow type (on-demand). Workers never talk to each other.
+- **Causality is one-directional**: External world → Sense → Signal → Reflex → Action + Log. Logs are the end of the chain.
+
+
+
+## Language & Paradigm
+
+### Functional-first
+
+Use `function` + `type`, not `class` + `interface`.
+
+```typescript
+// ✅ Good
+type Signal = {
+  senseId: string;
+  value: unknown;
+  ts: number;
+};
+
+function createSignal(senseId: string, value: unknown): Signal {
+  return { senseId, value, ts: Date.now() };
+}
+
+// ❌ Bad — no class, no interface
+class Signal implements ISignal { ... }
+```
+
+### Rules
+
+| Rule | Description |
+|------|-------------|
+| `type` over `interface` | All type definitions use `type` |
+| `function` over `class` | Pure functions + closures, no class |
+| No `this` | Functions must not depend on `this` context |
+| No inheritance | No `extends`, `implements`, `abstract` |
+| Composition over inheritance | Use function composition |
+| Immutability first | Use `Readonly<T>`, `as const`, avoid mutation |
+| No optional properties | Use `T \| null` instead of `?:` — see below |
+
+### Exceptions
+
+Classes are allowed when:
+- Required by a third-party library (e.g. Drizzle's `sqliteTable`)
+- Error subclasses (`class NerveError extends Error`)
+
+### No Optional Properties
+
+Never use `?:`. All nullable fields must be explicit `T | null`.
+
+```typescript
+// ✅ Good
+type SenseConfig = {
+  group: string;
+  throttle: string | null;
+  timeout: string | null;
+};
+
+// ❌ Bad
+type SenseConfig = {
+  group: string;
+  throttle?: string;
+  timeout?: string;
+};
+```
+
+For mutually exclusive fields, use discriminated unions:
+
+```typescript
+// ✅ Good
+type ReflexConfig =
+  | { kind: "sense"; sense: string; interval: string | null; on: string[] | null }
+  | { kind: "workflow"; workflow: string; on: string[] | null };
+```
+
+## Modules & Exports
+
+- Always named exports, never default exports
+- One module = one responsibility, filename = purpose
+
+```typescript
+// ✅ Named exports only
+export function startEngine(config: EngineConfig): Engine { ... }
+export type EngineConfig = { ... };
+
+// ❌ No default exports
+export default function startEngine() { ... }
+```
+
+## Naming
+
+| Type | Style | Example |
+|------|-------|---------|
+| Files | kebab-case | `signal-bus.ts` |
+| Types | PascalCase | `SignalBus` |
+| Functions/variables | camelCase | `createSignalBus` |
+| Constants | UPPER_SNAKE | `MAX_RETRY_COUNT` |
+| Generics | Single letter or descriptive | `T`, `TValue` |
+
+## Error Handling
+
+- Use `Result` type for expected failures
+- `throw` only for unrecoverable bugs (programmer errors)
+- No try-catch for flow control
+
+```typescript
+type Result<T, E = Error> = { ok: true; value: T } | { ok: false; error: E };
+
+function parseSenseConfig(raw: unknown): Result<SenseConfig> { ... }
+```
+
+## Async
+
+- Always `async/await`, never `.then()` chains
+
+## Toolchain
+
+| Tool | Purpose |
+|------|---------|
+| **pnpm** | Package manager |
+| **TypeScript** | Type checking (strict mode) |
+| **Biome** | Lint + format (replaces ESLint + Prettier) |
+| **tsup** | Bundling |
+
+### Commands
+
+```bash
+pnpm run check      # biome check (lint + format)
+pnpm run format     # biome format --write
+pnpm run build      # full build
+pnpm test           # run tests
+```
+
+## Monorepo Structure
+
+```
+nerve/
+  packages/
+    core/           # @nerve/core — shared types and utils
+    cli/            # @nerve/cli — CLI entry point
+    daemon/         # @nerve/daemon — engine runtime
+  docs/             # RFCs, conventions
+  biome.json        # root Biome config
+  tsconfig.json     # root TypeScript config (composite project references)
+```
+
+- `core` is the shared layer; `cli` and `daemon` both depend on it
+- `cli` and `daemon` must NOT depend on each other
+
+## Commit Convention
+
+```
+<type>(<scope>): <description>
+
+type: feat | fix | refactor | docs | chore | test
+scope: core | cli | daemon | rfc-001 | ...
+```

.cursor/rules/no-dynamic-import.mdc

@@ -0,0 +1,34 @@
+---
+description: Ban dynamic import() in production code — use static imports instead
+globs: packages/*/src/**/*.ts
+alwaysApply: true
+---
+
+# No Dynamic Import in Production Code
+
+## Rule
+
+Do NOT use `await import()` or dynamic `import()` expressions in production source code.
+Always use static top-level `import` statements.
+
+## Why
+
+- Static imports enable tree-shaking and bundler optimizations
+- They make dependencies explicit and discoverable at a glance
+- Dynamic imports of Node built-ins or project modules add unnecessary async overhead
+
+## Exceptions (must include a comment explaining why)
+
+1. **`sense-runtime.ts`** — loads user-authored sense modules whose paths are only known at runtime
+2. **`workflow-worker.ts`** — loads user-authored workflow modules whose paths are only known at runtime
+
+When suppressing, add a comment directly above:
+
+```ts
+// Dynamic import required: user module path resolved at runtime
+const mod = await import(senseIndexPath);
+```
+
+## Test Files
+
+Test files (`__tests__/**`) are exempt — dynamic import after `vi.mock()` is standard vitest practice.

.github/copilot-instructions.md

@@ -0,0 +1,180 @@
+# Nerve Coding Conventions
+
+## Core Concepts
+
+```
+External World → Sense → Signal → Reflex → Workflow → Log
+                  ↑                                     ↑
+              "what to observe"                  "what to do"
+```
+
+**Nerve** is a lightweight observation engine daemon for autonomous agents. It continuously observes external state, reacts to changes via declarative rules, and orchestrates multi-step workflows.
+
+### Key Terms
+
+| Concept | What it is |
+|---------|-----------|
+| **Sense** | A `compute()` function that samples or derives data. Returns `T \| null` — non-null emits a Signal, null is silent. Each Sense has its own SQLite database. |
+| **Signal** | A notification emitted when a Sense returns non-null. Pure fact, no intent. Distributed via an in-memory Signal Bus. Not persisted. |
+| **Reflex** | A declarative trigger (YAML) connecting Senses to actions. Trigger types: `interval` (periodic), `on` (react to Signals). Action types: trigger a Sense, or start a Workflow. |
+| **Workflow** | A stateful multi-step execution. Contains **Roles** (actors with side effects) and a **Moderator** (pure router). Each instance is a **Thread** with a unique `runId`. |
+| **Log** | Immutable audit trail. Records executions, state transitions, errors. **Cannot trigger Reflexes** — prevents feedback loops. |
+| **Engine** | The kernel orchestrating everything. Holds Signal Bus, Reflex Scheduler, Process Manager, Workflow Manager. Never loads user code directly — all user code runs in isolated Workers. |
+| **Daemon** | The `nerve-daemon` package — engine runtime. Runs as a background process. |
+
+### Architecture Rules
+
+- **Three orthogonal extension points**: Sense (what to compute), Reflex (when to compute), Workflow (what to do)
+- **Process isolation**: One worker per Sense group (long-lived), one per Workflow type (on-demand). Workers never talk to each other.
+- **Causality is one-directional**: External world → Sense → Signal → Reflex → Action + Log. Logs are the end of the chain.
+
+
+
+## Language & Paradigm
+
+### Functional-first
+
+Use `function` + `type`, not `class` + `interface`.
+
+```typescript
+// ✅ Good
+type Signal = {
+  senseId: string;
+  value: unknown;
+  ts: number;
+};
+
+function createSignal(senseId: string, value: unknown): Signal {
+  return { senseId, value, ts: Date.now() };
+}
+
+// ❌ Bad — no class, no interface
+class Signal implements ISignal { ... }
+```
+
+### Rules
+
+| Rule | Description |
+|------|-------------|
+| `type` over `interface` | All type definitions use `type` |
+| `function` over `class` | Pure functions + closures, no class |
+| No `this` | Functions must not depend on `this` context |
+| No inheritance | No `extends`, `implements`, `abstract` |
+| Composition over inheritance | Use function composition |
+| Immutability first | Use `Readonly<T>`, `as const`, avoid mutation |
+| No optional properties | Use `T \| null` instead of `?:` — see below |
+
+### Exceptions
+
+Classes are allowed when:
+- Required by a third-party library (e.g. Drizzle's `sqliteTable`)
+- Error subclasses (`class NerveError extends Error`)
+
+### No Optional Properties
+
+Never use `?:`. All nullable fields must be explicit `T | null`.
+
+```typescript
+// ✅ Good
+type SenseConfig = {
+  group: string;
+  throttle: string | null;
+  timeout: string | null;
+};
+
+// ❌ Bad
+type SenseConfig = {
+  group: string;
+  throttle?: string;
+  timeout?: string;
+};
+```
+
+For mutually exclusive fields, use discriminated unions:
+
+```typescript
+// ✅ Good
+type ReflexConfig =
+  | { kind: "sense"; sense: string; interval: string | null; on: string[] | null }
+  | { kind: "workflow"; workflow: string; on: string[] | null };
+```
+
+## Modules & Exports
+
+- Always named exports, never default exports
+- One module = one responsibility, filename = purpose
+
+## Naming
+
+| Type | Style | Example |
+|------|-------|---------|
+| Files | kebab-case | `signal-bus.ts` |
+| Types | PascalCase | `SignalBus` |
+| Functions/variables | camelCase | `createSignalBus` |
+| Constants | UPPER_SNAKE | `MAX_RETRY_COUNT` |
+| Generics | Single letter or descriptive | `T`, `TValue` |
+
+## Error Handling
+
+- Use `Result` type for expected failures
+- `throw` only for unrecoverable bugs (programmer errors)
+- No try-catch for flow control
+
+```typescript
+type Result<T, E = Error> = { ok: true; value: T } | { ok: false; error: E };
+```
+
+## Async
+
+- Always `async/await`, never `.then()` chains
+
+## No Dynamic Import
+
+Do NOT use `await import()` in production code. Always use static top-level `import`.
+
+Exceptions (must include a comment):
+1. `sense-runtime.ts` — user module paths known only at runtime
+2. `workflow-worker.ts` — user module paths known only at runtime
+
+Test files (`__tests__/**`) are exempt.
+
+## Toolchain
+
+| Tool | Purpose |
+|------|---------|
+| **pnpm** | Package manager |
+| **TypeScript** | Type checking (strict mode) |
+| **Biome** | Lint + format (replaces ESLint + Prettier) |
+| **tsup** | Bundling |
+
+### Commands
+
+```bash
+pnpm run check      # biome check (lint + format)
+pnpm run format     # biome format --write
+pnpm run build      # full build
+pnpm test           # run tests
+```
+
+## Monorepo Structure
+
+```
+nerve/
+  packages/
+    core/           # @nerve/core — shared types and utils
+    cli/            # @nerve/cli — CLI entry point
+    daemon/         # @nerve/daemon — engine runtime
+  docs/             # RFCs, conventions
+```
+
+- `core` is the shared layer; `cli` and `daemon` both depend on it
+- `cli` and `daemon` must NOT depend on each other
+
+## Commit Convention
+
+```
+<type>(<scope>): <description>
+
+type: feat | fix | refactor | docs | chore | test
+scope: core | cli | daemon | rfc-001 | ...
+```

.gitignore

@@ -2,3 +2,4 @@ node_modules
 dist
 .turbo
 *.tsbuildinfo
+*.tgz

CLAUDE.md

@@ -0,0 +1,180 @@
+# Nerve Coding Conventions
+
+## Core Concepts
+
+```
+External World → Sense → Signal → Reflex → Workflow → Log
+                  ↑                                     ↑
+              "what to observe"                  "what to do"
+```
+
+**Nerve** is a lightweight observation engine daemon for autonomous agents. It continuously observes external state, reacts to changes via declarative rules, and orchestrates multi-step workflows.
+
+### Key Terms
+
+| Concept | What it is |
+|---------|-----------|
+| **Sense** | A `compute()` function that samples or derives data. Returns `T \| null` — non-null emits a Signal, null is silent. Each Sense has its own SQLite database. |
+| **Signal** | A notification emitted when a Sense returns non-null. Pure fact, no intent. Distributed via an in-memory Signal Bus. Not persisted. |
+| **Reflex** | A declarative trigger (YAML) connecting Senses to actions. Trigger types: `interval` (periodic), `on` (react to Signals). Action types: trigger a Sense, or start a Workflow. |
+| **Workflow** | A stateful multi-step execution. Contains **Roles** (actors with side effects) and a **Moderator** (pure router). Each instance is a **Thread** with a unique `runId`. |
+| **Log** | Immutable audit trail. Records executions, state transitions, errors. **Cannot trigger Reflexes** — prevents feedback loops. |
+| **Engine** | The kernel orchestrating everything. Holds Signal Bus, Reflex Scheduler, Process Manager, Workflow Manager. Never loads user code directly — all user code runs in isolated Workers. |
+| **Daemon** | The `nerve-daemon` package — engine runtime. Runs as a background process. |
+
+### Architecture Rules
+
+- **Three orthogonal extension points**: Sense (what to compute), Reflex (when to compute), Workflow (what to do)
+- **Process isolation**: One worker per Sense group (long-lived), one per Workflow type (on-demand). Workers never talk to each other.
+- **Causality is one-directional**: External world → Sense → Signal → Reflex → Action + Log. Logs are the end of the chain.
+
+
+
+## Language & Paradigm
+
+### Functional-first
+
+Use `function` + `type`, not `class` + `interface`.
+
+```typescript
+// ✅ Good
+type Signal = {
+  senseId: string;
+  value: unknown;
+  ts: number;
+};
+
+function createSignal(senseId: string, value: unknown): Signal {
+  return { senseId, value, ts: Date.now() };
+}
+
+// ❌ Bad — no class, no interface
+class Signal implements ISignal { ... }
+```
+
+### Rules
+
+| Rule | Description |
+|------|-------------|
+| `type` over `interface` | All type definitions use `type` |
+| `function` over `class` | Pure functions + closures, no class |
+| No `this` | Functions must not depend on `this` context |
+| No inheritance | No `extends`, `implements`, `abstract` |
+| Composition over inheritance | Use function composition |
+| Immutability first | Use `Readonly<T>`, `as const`, avoid mutation |
+| No optional properties | Use `T \| null` instead of `?:` — see below |
+
+### Exceptions
+
+Classes are allowed when:
+- Required by a third-party library (e.g. Drizzle's `sqliteTable`)
+- Error subclasses (`class NerveError extends Error`)
+
+### No Optional Properties
+
+Never use `?:`. All nullable fields must be explicit `T | null`.
+
+```typescript
+// ✅ Good
+type SenseConfig = {
+  group: string;
+  throttle: string | null;
+  timeout: string | null;
+};
+
+// ❌ Bad
+type SenseConfig = {
+  group: string;
+  throttle?: string;
+  timeout?: string;
+};
+```
+
+For mutually exclusive fields, use discriminated unions:
+
+```typescript
+// ✅ Good
+type ReflexConfig =
+  | { kind: "sense"; sense: string; interval: string | null; on: string[] | null }
+  | { kind: "workflow"; workflow: string; on: string[] | null };
+```
+
+## Modules & Exports
+
+- Always named exports, never default exports
+- One module = one responsibility, filename = purpose
+
+## Naming
+
+| Type | Style | Example |
+|------|-------|---------|
+| Files | kebab-case | `signal-bus.ts` |
+| Types | PascalCase | `SignalBus` |
+| Functions/variables | camelCase | `createSignalBus` |
+| Constants | UPPER_SNAKE | `MAX_RETRY_COUNT` |
+| Generics | Single letter or descriptive | `T`, `TValue` |
+
+## Error Handling
+
+- Use `Result` type for expected failures
+- `throw` only for unrecoverable bugs (programmer errors)
+- No try-catch for flow control
+
+```typescript
+type Result<T, E = Error> = { ok: true; value: T } | { ok: false; error: E };
+```
+
+## Async
+
+- Always `async/await`, never `.then()` chains
+
+## No Dynamic Import
+
+Do NOT use `await import()` in production code. Always use static top-level `import`.
+
+Exceptions (must include a comment):
+1. `sense-runtime.ts` — user module paths known only at runtime
+2. `workflow-worker.ts` — user module paths known only at runtime
+
+Test files (`__tests__/**`) are exempt.
+
+## Toolchain
+
+| Tool | Purpose |
+|------|---------|
+| **pnpm** | Package manager |
+| **TypeScript** | Type checking (strict mode) |
+| **Biome** | Lint + format (replaces ESLint + Prettier) |
+| **tsup** | Bundling |
+
+### Commands
+
+```bash
+pnpm run check      # biome check (lint + format)
+pnpm run format     # biome format --write
+pnpm run build      # full build
+pnpm test           # run tests
+```
+
+## Monorepo Structure
+
+```
+nerve/
+  packages/
+    core/           # @nerve/core — shared types and utils
+    cli/            # @nerve/cli — CLI entry point
+    daemon/         # @nerve/daemon — engine runtime
+  docs/             # RFCs, conventions
+```
+
+- `core` is the shared layer; `cli` and `daemon` both depend on it
+- `cli` and `daemon` must NOT depend on each other
+
+## Commit Convention
+
+```
+<type>(<scope>): <description>
+
+type: feat | fix | refactor | docs | chore | test
+scope: core | cli | daemon | rfc-001 | ...
+```

README.md

@@ -1,3 +1,165 @@
 # nerve
 
-Observation engine — Sense, Reflex, Workflow
+**Observation engine for autonomous agents** — sense the world, react to changes, run workflows.
+
+Nerve is a lightweight daemon that continuously observes external state through **Senses**, reacts via declarative **Reflexes**, and orchestrates multi-step **Workflows**. Built for the [Uncaged](https://github.com/uncaged) agent framework.
+
+## Core Concepts
+
+```
+External World → Sense → Signal → Reflex → Workflow → Log
+                  ↑                                     ↑
+              "what to observe"                  "what to do"
+```
+
+| Concept | Metaphor | Role |
+|---------|----------|------|
+| **Sense** | 👁️ Perception | A `compute()` function that samples or derives data. Each sense has its own SQLite database. |
+| **Reflex** | ⚡ Reaction | Declarative trigger — interval-based, event-driven, or both. Connects senses to actions. |
+| **Signal** | 📡 Notification | Emitted when a sense returns non-null. Other reflexes can listen for signals. |
+| **Workflow** | 🔧 Action | Stateful multi-step execution with Roles (actors) and a Moderator (coordinator). |
+| **Log** | 📝 Record | Immutable audit trail. Queryable by senses, but **cannot** trigger reflexes (prevents feedback loops). |
+
+Three extension points, fully orthogonal — a Sense doesn't know when it runs, a Reflex doesn't know what it computes, a Workflow doesn't know why it was triggered.
+
+## Packages
+
+| Package | Description |
+|---------|-------------|
+| [`@uncaged/nerve-core`](./packages/core) | Shared types and config parser |
+| [`@uncaged/nerve-daemon`](./packages/daemon) | The observation engine — kernel, sense runtime, reflex scheduler, workflow manager |
+| [`@uncaged/nerve-cli`](./packages/cli) | CLI tool (`nerve`) — init, start, stop, logs, query |
+
+## Quick Start
+
+```bash
+# Requirements: Node.js ≥ 22.5, pnpm
+pnpm add -g @uncaged/nerve-cli
+
+# Initialize a workspace
+mkdir my-agent && cd my-agent
+nerve init
+
+# Write a sense
+cat > senses/cpu-usage/compute.ts << 'EOF'
+export async function compute() {
+  const [load] = (await import("node:os")).loadavg();
+  return load > 2.0 ? { load } : null;  // signal only when load is high
+}
+EOF
+
+# Configure reflexes in nerve.yaml
+cat > nerve.yaml << 'EOF'
+senses:
+  cpu-usage:
+    group: system
+    throttle: 10s
+
+reflexes:
+  - kind: sense
+    sense: cpu-usage
+    interval: 30s
+EOF
+
+# Run
+nerve dev          # foreground (development)
+nerve daemon start # background (production)
+nerve status       # check health
+nerve logs         # view logs
+```
+
+## Configuration
+
+`nerve.yaml` declares senses, reflexes, and workflows:
+
+```yaml
+senses:
+  cpu-usage:
+    group: system          # senses in the same group share a worker process
+    throttle: 10s          # min interval between computes
+    timeout: 30s           # max compute duration
+    gracePeriod: 5s        # wait before first compute after startup
+
+reflexes:
+  - kind: sense
+    sense: cpu-usage
+    interval: 30s          # periodic trigger
+    on: [disk-pressure]    # also trigger on signals from other senses
+
+  - kind: workflow
+    workflow: cleanup
+    on: [disk-pressure]    # start a workflow when signal fires
+
+workflows:
+  cleanup:
+    concurrency: 1
+    overflow: drop         # discard if already running
+  code-review:
+    concurrency: 3
+    overflow: queue
+    maxQueue: 20
+```
+
+## Architecture
+
+```
+┌─────────────────────────────────────────────────────────┐
+│  Kernel                                                 │
+│                                                         │
+│  ┌──────────┐   ┌──────────┐   ┌──────────┐           │
+│  │ Worker   │   │ Worker   │   │ Worker   │  (1 per   │
+│  │ (group A)│   │ (group B)│   │ (group C)│   group)  │
+│  │ sense-1  │   │ sense-3  │   │ sense-5  │           │
+│  │ sense-2  │   │ sense-4  │   │          │           │
+│  └────┬─────┘   └────┬─────┘   └────┬─────┘           │
+│       │              │              │                   │
+│       └──────────────┼──────────────┘                   │
+│                      ▼                                  │
+│              ┌──────────────┐                           │
+│              │  Signal Bus  │                           │
+│              └──────┬───────┘                           │
+│                     ▼                                   │
+│           ┌──────────────────┐                          │
+│           │ Reflex Scheduler │                          │
+│           └────────┬─────────┘                          │
+│                    ▼                                    │
+│          ┌───────────────────┐                          │
+│          │ Workflow Manager  │──→ Log Store (SQLite)    │
+│          └───────────────────┘                          │
+└─────────────────────────────────────────────────────────┘
+```
+
+- **Worker processes** — one per sense group, forked by the kernel. Isolated compute execution.
+- **Signal Bus** — in-memory pub/sub for signal distribution.
+- **Reflex Scheduler** — interval timers + signal subscriptions, with throttle/coalesce.
+- **Workflow Manager** — concurrency control (drop/queue), thread lifecycle tracking.
+- **Log Store** — WAL-mode SQLite via `node:sqlite`, with archival and retention policies.
+
+## Tech Stack
+
+- **Zero native addons** — uses Node.js built-in `node:sqlite` (DatabaseSync)
+- **Drizzle ORM** v1.0 for sense databases
+- **rslib** (rspack) for building
+- **Biome** for formatting/linting
+- **Vitest** for testing
+- **pnpm** workspaces for monorepo management
+
+## Development
+
+```bash
+git clone https://git.shazhou.work/uncaged/nerve.git
+cd nerve
+pnpm install
+pnpm build
+pnpm -r test     # run all tests
+```
+
+## Design Documents
+
+- [RFC-001: Observation Engine](./docs/rfc-001-observation-engine.md) — Sense, Signal, Reflex model
+- [RFC-002: Workflow Engine](./docs/rfc-002-workflow-engine.md) — Stateful workflow execution
+- [Coding Conventions](./docs/coding-conventions.md)
+
+## License
+
+MIT

docs/skill-publish.md

@@ -0,0 +1,80 @@
+# Skill: Publish @uncaged/nerve packages to npm
+
+## When to use
+
+When releasing a new version of any `@uncaged/nerve-*` package to npm.
+
+## Prerequisites
+
+- npm login with an account that has **owner** access to the `@uncaged` org
+- All tests pass: `pnpm -r run test`
+- Clean working tree (no uncommitted changes)
+
+## Packages
+
+| Package | Path | npm |
+|---------|------|-----|
+| `@uncaged/nerve-core` | `packages/core` | [link](https://www.npmjs.com/package/@uncaged/nerve-core) |
+| `@uncaged/nerve-daemon` | `packages/daemon` | [link](https://www.npmjs.com/package/@uncaged/nerve-daemon) |
+| `@uncaged/nerve-cli` | `packages/cli` | [link](https://www.npmjs.com/package/@uncaged/nerve-cli) |
+
+## Dependency order
+
+`core` → `daemon` → `cli`
+
+Always publish in this order. If `core` has changes, bump and publish it first, then update dependents.
+
+## Steps
+
+### 1. Ensure clean state
+
+```bash
+git checkout main && git pull origin main
+pnpm install
+pnpm -r run build
+pnpm -r run test
+```
+
+### 2. Bump versions
+
+Manually update `version` in each changed package's `package.json`.
+
+Follow semver:
+- **patch** (0.1.x): bug fixes, refactors
+- **minor** (0.x.0): new features, non-breaking API additions
+- **major** (x.0.0): breaking changes
+
+If bumping `core`, also update the `@uncaged/nerve-core` dependency version in `daemon` and `cli` package.json. Same for `daemon` → `cli`.
+
+### 3. Build
+
+```bash
+pnpm -r run build
+```
+
+### 4. Publish (in order)
+
+```bash
+# Only publish packages that have version bumps
+# MUST use pnpm publish (not npm) — pnpm converts workspace:* to real versions
+cd packages/core && pnpm publish --access public --no-git-checks
+cd packages/daemon && pnpm publish --access public --no-git-checks
+cd packages/cli && pnpm publish --access public --no-git-checks
+```
+
+### 5. Commit & tag
+
+```bash
+git add -A
+git commit -m "release: @uncaged/nerve-core@X.Y.Z, @uncaged/nerve-daemon@X.Y.Z, @uncaged/nerve-cli@X.Y.Z"
+git tag -a vX.Y.Z -m "Release vX.Y.Z"
+git push origin main --tags
+```
+
+## Pitfalls
+
+- **Don't publish without building first** — `tsup` output in `dist/` is what npm ships
+- **Dependency order matters** — if you publish `daemon` before `core`, npm may resolve the old `core` version
+- **`--access public`** is required for scoped packages on first publish; safe to always include
+- **Check `npm whoami`** to confirm you're logged in as the right account
+- **No changeset tool** — this project uses manual version bumps (no changesets/lerna)

docs/skill-setup.md

@@ -0,0 +1,101 @@
+# Skill: Setup nerve from scratch
+
+## When to use
+
+Setting up the nerve project for local development from a fresh clone.
+
+## Prerequisites
+
+- **Node.js** ≥ 18
+- **pnpm** ≥ 9 (`npm install -g pnpm`)
+- **Git** access to `git.shazhou.work`
+
+## Steps
+
+### 1. Clone
+
+```bash
+git clone https://git.shazhou.work/uncaged/nerve.git
+cd nerve
+```
+
+### 2. Install dependencies
+
+```bash
+pnpm install
+```
+
+This installs all workspace packages and links internal dependencies (`core` → `daemon` → `cli`).
+
+### 3. Build all packages
+
+```bash
+pnpm -r run build
+```
+
+Build order is handled automatically by pnpm workspace — `core` builds first, then `daemon`, then `cli`.
+
+### 4. Run tests
+
+```bash
+pnpm -r run test
+```
+
+Or test individual packages:
+
+```bash
+pnpm --filter @uncaged/nerve-core test
+pnpm --filter @uncaged/nerve-daemon test
+pnpm --filter @uncaged/nerve-cli test
+```
+
+### 5. Try the CLI
+
+```bash
+# Link the CLI globally
+cd packages/cli && npm link
+
+# Initialize a workspace
+mkdir ~/my-nerve-workspace && cd ~/my-nerve-workspace
+nerve init
+
+# Edit senses in nerve.yaml, then:
+nerve start      # start the daemon
+nerve sense list  # list registered senses
+nerve stop       # stop the daemon
+```
+
+### 6. Lint & format
+
+```bash
+pnpm run check    # biome lint check
+pnpm run format   # biome auto-format
+```
+
+## Project structure
+
+```
+nerve/
+├── packages/
+│   ├── core/       # @uncaged/nerve-core — shared types, log store, blob store
+│   ├── daemon/     # @uncaged/nerve-daemon — kernel, sense runtime, workflow manager
+│   └── cli/        # @uncaged/nerve-cli — CLI commands (init, start, stop, sense, etc.)
+├── docs/           # RFCs, conventions, skills
+├── pnpm-workspace.yaml
+└── biome.json      # linter/formatter config
+```
+
+## Key conventions
+
+- **Monorepo** with pnpm workspaces
+- **ESM only** — all packages output ESM (`"type": "module"`)
+- **tsup** for builds, **vitest** for tests, **biome** for lint/format
+- **SQLite** (better-sqlite3) for log store and blob store
+- See `docs/coding-conventions.md` for code style rules
+
+## Pitfalls
+
+- **Must build before test** — daemon and cli import compiled output from core
+- **better-sqlite3** requires native compilation — if `pnpm install` fails, ensure you have build tools (`build-essential` on Linux, Xcode CLI tools on macOS)
+- **Node 18+** required — uses native `fetch`, `crypto.randomUUID`, etc.
+- **pnpm only** — don't use npm/yarn, workspace links won't resolve correctly

package.json

@@ -1,6 +1,9 @@
 {
   "name": "nerve",
   "private": true,
+  "engines": {
+    "node": ">=22.5.0"
+  },
   "scripts": {
     "build": "pnpm -r run build",
     "check": "biome check .",
@@ -8,7 +11,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "^1.9.0",
-    "tsup": "^8.0.0",
+    "@rslib/core": "^0.21.3",
     "typescript": "^5.5.0"
   }
 }

packages/cli/README.md

@@ -0,0 +1,69 @@
+# @uncaged/nerve-cli
+
+Command-line interface for the [nerve](../../README.md) observation engine.
+
+## Install
+
+```bash
+pnpm add -g @uncaged/nerve-cli
+# or
+npx @uncaged/nerve-cli
+```
+
+Requires Node.js ≥ 22.5.
+
+## Commands
+
+### Workspace
+
+```bash
+nerve init                  # Initialize a nerve workspace (installs deps, scaffolds config)
+nerve validate              # Validate nerve.yaml configuration
+```
+
+### Daemon Management
+
+```bash
+nerve daemon start          # Start the daemon (background)
+nerve daemon stop           # Stop the daemon
+nerve daemon status         # Check daemon health
+nerve daemon restart        # Restart the daemon
+nerve daemon logs           # Tail daemon logs
+```
+
+### Development
+
+```bash
+nerve dev                   # Run in foreground mode (no daemon, Ctrl+C to stop)
+```
+
+### Querying
+
+```bash
+nerve logs                  # View structured logs
+nerve sense query <name>    # Query a sense's SQLite database
+nerve sense schema <name>   # Show a sense's database schema
+nerve status                # Daemon health summary
+```
+
+### Workflows
+
+```bash
+nerve workflow list         # List workflow runs
+nerve workflow show <runId> # Show workflow run details
+```
+
+### Top-level Aliases
+
+For convenience, these aliases are available:
+
+```bash
+nerve start    → nerve daemon start
+nerve stop     → nerve daemon stop
+nerve status   → nerve daemon status
+nerve logs     → nerve daemon logs
+```
+
+## License
+
+MIT

packages/cli/package.json

@@ -1,6 +1,9 @@
 {
   "name": "@uncaged/nerve-cli",
-  "version": "0.1.4",
+  "engines": {
+    "node": ">=22.5.0"
+  },
+  "version": "0.2.0",
   "type": "module",
   "bin": {
     "nerve": "dist/cli.js"
@@ -14,17 +17,19 @@
     "access": "public"
   },
   "scripts": {
-    "build": "tsup",
+    "prepublishOnly": "bash ../../scripts/prepublish-check.sh",
+    "build": "rslib build",
     "test": "vitest run"
   },
   "dependencies": {
     "@uncaged/nerve-core": "workspace:*",
-    "citty": "^0.1.6"
+    "citty": "^0.1.6",
+    "yaml": "^2.8.3"
   },
   "devDependencies": {
-    "@uncaged/nerve-daemon": "workspace:*",
-    "@types/better-sqlite3": "^7.6.13",
+    "@rslib/core": "^0.21.3",
     "@types/node": "^22.0.0",
+    "@uncaged/nerve-daemon": "workspace:*",
     "vitest": "^4.1.5"
   }
 }

packages/cli/rslib.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig } from "@rslib/core";
+
+export default defineConfig({
+  lib: [
+    {
+      format: "esm",
+      dts: true,
+      banner: {
+        js: "#!/usr/bin/env node",
+      },
+    },
+  ],
+  source: {
+    entry: {
+      index: "src/index.ts",
+      cli: "src/cli.ts",
+      "daemon-bootstrap": "src/daemon-bootstrap.ts",
+    },
+  },
+  output: {
+    target: "node",
+    cleanDistPath: true,
+    externals: ["@uncaged/nerve-daemon"],
+  },
+});

packages/cli/src/__tests__/daemon-cli.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from "vitest";
+
+import { daemonCommand } from "../commands/daemon.js";
+import { devCommand } from "../commands/dev.js";
+import { daemonStartCommand } from "../commands/start.js";
+
+describe("nerve daemon command group", () => {
+  it("exposes start, stop, status, restart, and logs subcommands", () => {
+    const subs = daemonCommand.subCommands;
+    expect(subs).toBeDefined();
+    if (!subs) {
+      throw new Error("expected daemonCommand.subCommands");
+    }
+    expect(Object.keys(subs).sort()).toEqual(["logs", "restart", "start", "status", "stop"]);
+  });
+
+  it("shares the same start command object as top-level nerve start alias", () => {
+    const subs = daemonCommand.subCommands;
+    expect(subs?.start).toBe(daemonStartCommand);
+  });
+});
+
+describe("nerve dev", () => {
+  it("is a foreground dev command", () => {
+    expect(devCommand.meta?.name).toBe("dev");
+    expect(devCommand.meta?.description).toMatch(/foreground/i);
+  });
+});

packages/cli/src/__tests__/daemon-types.test.ts

@@ -3,6 +3,7 @@
  * If the daemon package changes its public API, this file will fail to compile.
  */
 
+import type { SenseInfo } from "@uncaged/nerve-core";
 import type {
   ArchiveLogsDayResult as DaemonArchiveLogsDayResult,
   ArchiveLogsOptions as DaemonArchiveLogsOptions,
@@ -10,6 +11,7 @@ import type {
   LogEntry as DaemonLogEntry,
   LogQuery as DaemonLogQuery,
   LogStore as DaemonLogStore,
+  SenseInfo as DaemonSenseInfo,
   WorkflowRun as DaemonWorkflowRun,
   WorkflowRunStatus as DaemonWorkflowRunStatus,
 } from "@uncaged/nerve-daemon";
@@ -27,6 +29,11 @@ import type {
 } from "../daemon-types.js";
 
 describe("daemon-types drift guard", () => {
+  it("SenseInfo matches daemon package export (list-senses IPC)", () => {
+    expectTypeOf<SenseInfo>().toMatchTypeOf<DaemonSenseInfo>();
+    expectTypeOf<DaemonSenseInfo>().toMatchTypeOf<SenseInfo>();
+  });
+
   it("WorkflowRunStatus is assignable both ways", () => {
     expectTypeOf<WorkflowRunStatus>().toMatchTypeOf<DaemonWorkflowRunStatus>();
     expectTypeOf<DaemonWorkflowRunStatus>().toMatchTypeOf<WorkflowRunStatus>();

packages/cli/src/__tests__/sense-list.test.ts

@@ -13,18 +13,24 @@ import { createServer } from "node:net";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 
+import type { SenseInfo } from "@uncaged/nerve-core";
 import { afterEach, beforeEach, describe, expect, it } from "vitest";
 
-import { listSensesViaDaemon } from "../daemon-client.js";
-import type { SenseInfo } from "../daemon-client.js";
 import { formatDuration, formatSenseList, sensesFromConfig } from "../commands/sense.js";
+import { listSensesViaDaemon } from "../daemon-client.js";
 
 // ---------------------------------------------------------------------------
 // Fixtures
 // ---------------------------------------------------------------------------
 
 const SAMPLE_SENSES: SenseInfo[] = [
-  { name: "cpu-usage", group: "system", throttle: 5000, timeout: 3000, lastSignalTs: 1_700_000_000_000 },
+  {
+    name: "cpu-usage",
+    group: "system",
+    throttle: 5000,
+    timeout: 3000,
+    lastSignalTs: 1_700_000_000_000,
+  },
   { name: "disk-usage", group: "system", throttle: 30000, timeout: null, lastSignalTs: null },
   { name: "active-tasks", group: "tasks", throttle: 10000, timeout: 30000, lastSignalTs: null },
 ];

packages/cli/src/__tests__/sense-sqlite.test.ts

@@ -0,0 +1,159 @@
+/**
+ * Tests for sense SQLite helpers used by `nerve sense schema` / `nerve sense query`.
+ */
+
+import { mkdirSync, rmSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+import { DatabaseSync } from "node:sqlite";
+
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+
+import {
+  assertSenseDbExists,
+  collectColumnKeys,
+  defaultPreviewSql,
+  formatRowsAsAlignedTable,
+  listTableSqlStatements,
+  parseSenseQueryArgs,
+  pickDefaultPreviewTable,
+  senseDbPath,
+} from "../sense-sqlite.js";
+
+let tmpDir: string;
+
+beforeEach(() => {
+  tmpDir = join(
+    tmpdir(),
+    `nerve-sense-sqlite-${Date.now()}-${Math.random().toString(16).slice(2)}`,
+  );
+  mkdirSync(join(tmpDir, "data", "senses"), { recursive: true });
+});
+
+afterEach(() => {
+  rmSync(tmpDir, { recursive: true, force: true });
+});
+
+describe("senseDbPath", () => {
+  it("points at data/senses/<name>.db under the given root", () => {
+    expect(senseDbPath("/root", "cpu-usage")).toBe(join("/root", "data", "senses", "cpu-usage.db"));
+  });
+});
+
+describe("assertSenseDbExists", () => {
+  it("throws when the file is missing", () => {
+    expect(() => assertSenseDbExists(tmpDir, "nope")).toThrow(/No database at/);
+  });
+
+  it("returns the path when the file exists", () => {
+    const p = join(tmpDir, "data", "senses", "x.db");
+    new DatabaseSync(p).close();
+    expect(assertSenseDbExists(tmpDir, "x")).toBe(p);
+  });
+});
+
+describe("listTableSqlStatements", () => {
+  it("returns CREATE statements ordered by tbl_name", () => {
+    const p = join(tmpDir, "data", "senses", "t.db");
+    const db = new DatabaseSync(p);
+    db.exec("CREATE TABLE zebra (id INTEGER)");
+    db.exec("CREATE TABLE alpha (id INTEGER)");
+    const stmts = listTableSqlStatements(db);
+    db.close();
+    expect(stmts).toHaveLength(2);
+    expect(stmts[0]).toMatch(/^CREATE TABLE alpha/i);
+    expect(stmts[1]).toMatch(/^CREATE TABLE zebra/i);
+  });
+});
+
+describe("pickDefaultPreviewTable", () => {
+  it("prefers non-_migrations tables when both exist", () => {
+    const p = join(tmpDir, "data", "senses", "t.db");
+    const db = new DatabaseSync(p);
+    db.exec("CREATE TABLE _migrations (name TEXT PRIMARY KEY)");
+    db.exec("CREATE TABLE readings (id INTEGER)");
+    expect(pickDefaultPreviewTable(db)).toBe("readings");
+    db.close();
+  });
+
+  it("uses _migrations when it is the only table", () => {
+    const p = join(tmpDir, "data", "senses", "t.db");
+    const db = new DatabaseSync(p);
+    db.exec("CREATE TABLE _migrations (name TEXT PRIMARY KEY)");
+    expect(pickDefaultPreviewTable(db)).toBe("_migrations");
+    db.close();
+  });
+});
+
+describe("defaultPreviewSql", () => {
+  it("quotes identifiers for SQL safety", () => {
+    expect(defaultPreviewSql(`weird"name`)).toContain(`weird""name`);
+  });
+});
+
+describe("parseSenseQueryArgs", () => {
+  it("parses sense name only", () => {
+    expect(parseSenseQueryArgs(["cpu"])).toEqual({ name: "cpu", sql: undefined });
+  });
+
+  it("strips --json", () => {
+    expect(parseSenseQueryArgs(["cpu", "--json"])).toEqual({ name: "cpu", sql: undefined });
+    expect(parseSenseQueryArgs(["--json", "cpu"])).toEqual({ name: "cpu", sql: undefined });
+  });
+
+  it("joins remaining tokens into SQL", () => {
+    expect(parseSenseQueryArgs(["cpu", "SELECT", "1"])).toEqual({ name: "cpu", sql: "SELECT 1" });
+  });
+
+  it("throws when name is missing", () => {
+    expect(() => parseSenseQueryArgs(["--json"])).toThrow(/Missing sense name/);
+  });
+});
+
+describe("formatRowsAsAlignedTable", () => {
+  it("shows empty marker for no rows", () => {
+    expect(formatRowsAsAlignedTable([])).toContain("(0 rows)");
+  });
+
+  it("aligns columns from row data", () => {
+    const out = formatRowsAsAlignedTable([
+      { a: 1, b: "x" },
+      { a: 22, b: "yy" },
+    ]);
+    expect(out).toContain("a");
+    expect(out).toContain("b");
+    expect(out).toContain("22");
+  });
+});
+
+describe("collectColumnKeys", () => {
+  it("preserves key order from first row then appends new keys", () => {
+    expect(
+      collectColumnKeys([
+        { z: 1, a: 2 },
+        { a: 3, b: 4 },
+      ]),
+    ).toEqual(["z", "a", "b"]);
+  });
+});
+
+describe("readonly query integration", () => {
+  it("runs default preview SQL on a real db", () => {
+    const p = join(tmpDir, "data", "senses", "demo.db");
+    const rw = new DatabaseSync(p);
+    rw.exec("CREATE TABLE items (id INTEGER PRIMARY KEY, v TEXT)");
+    rw.exec("INSERT INTO items (v) VALUES ('a'), ('b')");
+    rw.close();
+
+    const db = new DatabaseSync(p, { readOnly: true });
+    const table = pickDefaultPreviewTable(db);
+    expect(table).toBe("items");
+    if (table === null) {
+      throw new Error("expected items table");
+    }
+    const sql = defaultPreviewSql(table);
+    const rows = db.prepare(sql).all() as Record<string, unknown>[];
+    db.close();
+    expect(rows.length).toBeGreaterThanOrEqual(1);
+  });
+});

packages/cli/src/__tests__/workflow.test.ts

@@ -18,13 +18,17 @@ import { afterEach, beforeEach, describe, expect, it } from "vitest";
 import {
   buildInspectOutput,
   buildListOutput,
+  buildThreadCommandOutput,
+  DEFAULT_THREAD_BUDGET_CHARS,
+  formatThreadRoundBlock,
   formatTs,
   getAllWorkflowRuns,
+  partitionCommandEvent,
   parseIntArg,
   statusIcon,
 } from "../commands/workflow.js";
 import { triggerWorkflowViaDaemon } from "../daemon-client.js";
-import type { LogStore, WorkflowRun } from "../daemon-types.js";
+import type { LogStore, ThreadRoundRow, WorkflowRun } from "../daemon-types.js";
 
 // ---------------------------------------------------------------------------
 // Test helpers
@@ -322,6 +326,97 @@ describe("workflow list — integration with real store", () => {
   });
 });
 
+// ---------------------------------------------------------------------------
+// nerve workflow thread — formatting helpers
+// ---------------------------------------------------------------------------
+
+describe("partitionCommandEvent", () => {
+  it("splits reserved type, role, content from rest", () => {
+    const p = partitionCommandEvent({
+      type: "scan_done",
+      role: "scanner",
+      content: "ok",
+      items: [1, 2],
+    });
+    expect(p.typeStr).toBe("scan_done");
+    expect(p.roleStr).toBe("scanner");
+    expect(p.contentBody).toBe("ok");
+    expect(p.rest).toEqual({ items: [1, 2] });
+  });
+
+  it("uses fallback role and stringifies non-string content", () => {
+    const p = partitionCommandEvent({ type: "x", content: { n: 1 } });
+    expect(p.roleStr).toBe("?");
+    expect(p.contentBody).toBe('{"n":1}');
+  });
+});
+
+describe("formatThreadRoundBlock", () => {
+  const row: ThreadRoundRow = {
+    round: 2,
+    logId: 99,
+    ts: new Date("2026-01-02T03:04:05.006Z").getTime(),
+    event: { type: "reply", role: "bot", content: "hi", score: 0.5 },
+  };
+
+  it("includes header, YAML frontmatter for rest, and body", () => {
+    const text = formatThreadRoundBlock(row);
+    expect(text).toContain("[#2 bot]");
+    expect(text).toContain("type=reply");
+    expect(text).toContain("---\n");
+    expect(text).toContain("score: 0.5");
+    expect(text).toContain("hi");
+    expect(text).not.toContain("role:");
+  });
+});
+
+describe("buildThreadCommandOutput", () => {
+  function row(n: number, content: string): ThreadRoundRow {
+    return {
+      round: n,
+      logId: 10 + n,
+      ts: 1000 + n,
+      event: { type: "ev", role: "r", content, extra: n },
+    };
+  }
+
+  it("orders rounds chronologically (oldest first in output)", () => {
+    const desc = [row(3, "ccc"), row(2, "bbb"), row(1, "aaa")];
+    const prefix = ["HEADER\n"];
+    const { lines, paginationHint } = buildThreadCommandOutput(prefix, desc, 50_000, "run-x");
+    const text = lines.join("");
+    const idxA = text.indexOf("\naaa\n");
+    const idxB = text.indexOf("\nbbb\n");
+    const idxC = text.indexOf("\nccc\n");
+    expect(idxA).toBeGreaterThan(-1);
+    expect(idxB).toBeGreaterThan(idxA);
+    expect(idxC).toBeGreaterThan(idxB);
+    expect(paginationHint).toBeNull();
+  });
+
+  it("emits pagination hint with --before when oldest shown round is still > 1", () => {
+    const desc = [row(4, "d"), row(3, "c")];
+    const { paginationHint } = buildThreadCommandOutput([], desc, 50_000, "run-y");
+    expect(paginationHint).toContain("--before 3");
+    expect(paginationHint).toContain("run-y");
+  });
+
+  it("respects budget and hints with non-default --budget in command", () => {
+    const big = "y".repeat(500);
+    const desc = [row(2, big), row(1, "a")];
+    const { lines, paginationHint } = buildThreadCommandOutput([], desc, 400, "run-z");
+    const text = lines.join("");
+    expect(text).toContain("[#2");
+    expect(text).not.toContain("[#1");
+    expect(paginationHint).toContain("--before 2");
+    expect(paginationHint).toContain("--budget 400");
+  });
+
+  it("default budget constant matches workflow command default", () => {
+    expect(DEFAULT_THREAD_BUDGET_CHARS).toBe(8000);
+  });
+});
+
 // ---------------------------------------------------------------------------
 // parseIntArg
 // ---------------------------------------------------------------------------

packages/cli/src/cli.ts

@@ -1,15 +1,37 @@
 import { defineCommand, runMain } from "citty";
 
+import { daemonCommand } from "./commands/daemon.js";
+import { devCommand } from "./commands/dev.js";
 import { initCommand } from "./commands/init.js";
 import { logsCommand } from "./commands/logs.js";
 import { senseCommand } from "./commands/sense.js";
-import { startCommand } from "./commands/start.js";
+import { daemonStartCommand } from "./commands/start.js";
 import { statusCommand } from "./commands/status.js";
 import { stopCommand } from "./commands/stop.js";
 import { storeCommand } from "./commands/store.js";
 import { validateCommand } from "./commands/validate.js";
 import { workflowCommand } from "./commands/workflow.js";
 
+/**
+ * Citty picks the first non-flag token as a subcommand name. Rewrite
+ * `nerve init --from <url>` so the URL is not mistaken for `workflow`/`workspace`.
+ */
+function normalizeNerveArgv(argv: string[]): string[] {
+  const initIdx = argv.indexOf("init");
+  if (initIdx === -1) return argv;
+  const tail = argv.slice(initIdx + 1);
+  const fromAt = tail.indexOf("--from");
+  if (fromAt === -1) return argv;
+  const beforeFrom = tail.slice(0, fromAt);
+  if (beforeFrom.some((a) => !a.startsWith("-"))) return argv;
+  const next = tail[fromAt + 1];
+  if (next === undefined || next.startsWith("-")) return argv;
+  const reserved = new Set(["workflow", "workspace"]);
+  if (reserved.has(next)) return argv;
+  const mergedTail = [...tail.slice(0, fromAt), `--from=${next}`, ...tail.slice(fromAt + 2)];
+  return [...argv.slice(0, initIdx + 1), ...mergedTail];
+}
+
 const main = defineCommand({
   meta: {
     name: "nerve",
@@ -17,7 +39,9 @@ const main = defineCommand({
   },
   subCommands: {
     init: initCommand,
-    start: startCommand,
+    daemon: daemonCommand,
+    dev: devCommand,
+    start: daemonStartCommand,
     stop: stopCommand,
     status: statusCommand,
     logs: logsCommand,
@@ -28,4 +52,4 @@ const main = defineCommand({
   },
 });
 
-runMain(main);
+runMain(main, { rawArgs: normalizeNerveArgv(process.argv.slice(2)) });

packages/cli/src/commands/daemon.ts

@@ -0,0 +1,31 @@
+import { defineCommand } from "citty";
+
+import { logsCommand } from "./logs.js";
+import { daemonStartCommand, runDaemonStartCommand } from "./start.js";
+import { statusCommand } from "./status.js";
+import { runStopCommand, stopCommand } from "./stop.js";
+
+const daemonRestartCommand = defineCommand({
+  meta: {
+    name: "restart",
+    description: "Stop then start the nerve daemon",
+  },
+  async run() {
+    await runStopCommand();
+    await runDaemonStartCommand();
+  },
+});
+
+export const daemonCommand = defineCommand({
+  meta: {
+    name: "daemon",
+    description: "Manage the nerve background daemon",
+  },
+  subCommands: {
+    start: daemonStartCommand,
+    stop: stopCommand,
+    status: statusCommand,
+    restart: daemonRestartCommand,
+    logs: logsCommand,
+  },
+});

packages/cli/src/commands/dev.ts

@@ -0,0 +1,17 @@
+import { defineCommand } from "citty";
+
+import { runForegroundKernelSession } from "../run-foreground-kernel.js";
+import { loadDaemonModule } from "../workspace-daemon.js";
+import { getNerveRoot } from "../workspace.js";
+
+export const devCommand = defineCommand({
+  meta: {
+    name: "dev",
+    description: "Run the nerve kernel in the foreground (development mode)",
+  },
+  async run() {
+    const nerveRoot = getNerveRoot();
+    const { createKernel } = await loadDaemonModule(nerveRoot);
+    await runForegroundKernelSession(nerveRoot, createKernel);
+  },
+});

packages/cli/src/commands/init.ts

@@ -1,5 +1,7 @@
-import { existsSync, mkdirSync, writeFileSync } from "node:fs";
+import { execFile, spawn } from "node:child_process";
+import { existsSync, mkdirSync, readdirSync, writeFileSync } from "node:fs";
 import { dirname, join } from "node:path";
+import { promisify } from "node:util";
 
 import { defineCommand } from "citty";
 
@@ -33,7 +35,7 @@ const PACKAGE_JSON = `{
     "drizzle-kit": "latest"
   },
   "pnpm": {
-    "onlyBuiltDependencies": ["better-sqlite3", "esbuild"]
+    "onlyBuiltDependencies": ["esbuild"]
   }
 }
 `;
@@ -42,6 +44,8 @@ const GITIGNORE = `data/
 node_modules/
 `;
 
+const execFileAsync = promisify(execFile);
+
 const CPU_SCHEMA_TS = `import { integer, real, sqliteTable, text } from "drizzle-orm/sqlite-core";
 
 export const cpuUsage = sqliteTable("cpu_usage", {
@@ -90,7 +94,6 @@ function writeFile(filePath: string, content: string): void {
 }
 
 async function runCommand(cmd: string, args: string[], cwd: string): Promise<void> {
-  const { spawn } = await import("node:child_process");
   await new Promise<void>((resolve, reject) => {
     const child = spawn(cmd, args, { cwd, stdio: "inherit" });
     child.on("close", (code) => {
@@ -102,10 +105,6 @@ async function runCommand(cmd: string, args: string[], cwd: string): Promise<voi
 }
 
 async function detectPackageManager(): Promise<{ cmd: string; installArgs: string[] }> {
-  const { execFile } = await import("node:child_process");
-  const { promisify } = await import("node:util");
-  const execFileAsync = promisify(execFile);
-
   for (const pm of ["pnpm", "yarn", "npm"]) {
     try {
       await execFileAsync(pm, ["--version"]);
@@ -219,23 +218,94 @@ const initWorkspaceCommand = defineCommand({
   },
 });
 
-async function tryRequireSqlite(nerveRoot: string): Promise<boolean> {
+/** Verify built-in `node:sqlite` (Node.js ≥22.5) loads in a child process. */
+async function verifyNodeSqlite(): Promise<boolean> {
   try {
-    const modulePath = join(nerveRoot, "node_modules", "better-sqlite3");
-    // Use a child process to test if the native module loads
-    const { execFile } = await import("node:child_process");
-    const { promisify } = await import("node:util");
-    const execFileAsync = promisify(execFile);
-    await execFileAsync("node", ["-e", `require(${JSON.stringify(modulePath)})`], {
-      cwd: nerveRoot,
-      timeout: 10_000,
-    });
+    await execFileAsync(
+      "node",
+      [
+        "--input-type=module",
+        "-e",
+        "import { DatabaseSync } from 'node:sqlite'; new DatabaseSync(':memory:').exec('SELECT 1');",
+      ],
+      { timeout: 10_000 },
+    );
     return true;
   } catch {
     return false;
   }
 }
 
+function isNerveRootNonEmpty(nerveRoot: string): boolean {
+  if (!existsSync(nerveRoot)) return false;
+  return readdirSync(nerveRoot).length > 0;
+}
+
+async function runInitFromGit(url: string): Promise<void> {
+  const trimmed = url.trim();
+  if (trimmed.length === 0) {
+    process.stderr.write("❌ --from requires a non-empty git URL.\n");
+    process.exit(1);
+  }
+
+  const nerveRoot = getNerveRoot();
+  if (isNerveRootNonEmpty(nerveRoot)) {
+    process.stderr.write(
+      `❌ ${nerveRoot} already exists and is not empty. Remove it (or empty it) before using --from.\n`,
+    );
+    process.exit(1);
+  }
+
+  try {
+    await execFileAsync("git", ["--version"]);
+  } catch {
+    process.stderr.write("❌ git is not available. Install git and retry.\n");
+    process.exit(1);
+  }
+
+  try {
+    await execFileAsync("pnpm", ["--version"]);
+  } catch {
+    process.stderr.write("❌ pnpm is not available. Install pnpm and retry.\n");
+    process.exit(1);
+  }
+
+  process.stdout.write(`Cloning ${trimmed} → ${nerveRoot} …\n`);
+  try {
+    await runCommand("git", ["clone", trimmed, nerveRoot], process.cwd());
+  } catch {
+    process.stderr.write("❌ git clone failed.\n");
+    process.exit(1);
+  }
+
+  if (!existsSync(join(nerveRoot, "nerve.yaml"))) {
+    process.stdout.write(`⚠️ ${join(nerveRoot, "nerve.yaml")} not found after clone.\n`);
+  }
+  if (!existsSync(join(nerveRoot, "package.json"))) {
+    process.stdout.write(`⚠️ ${join(nerveRoot, "package.json")} not found after clone.\n`);
+  }
+
+  process.stdout.write("Installing dependencies with pnpm …\n");
+  try {
+    await runCommand("pnpm", ["install", "--no-cache"], nerveRoot);
+  } catch {
+    process.stdout.write(
+      `⚠️ pnpm install failed. Try manually:\n   cd ${nerveRoot} && pnpm install --no-cache\n`,
+    );
+  }
+
+  if (!(await verifyNodeSqlite())) {
+    process.stdout.write(
+      "⚠️ Built-in SQLite (node:sqlite) is not available in this Node.js build. " +
+        "The daemon requires Node.js 22.5 or newer with SQLite enabled.\n",
+    );
+  }
+
+  process.stdout.write(
+    `✅ Workspace cloned to ${nerveRoot}\n\n💡 Next steps:\n   1. Review nerve.yaml and install any missing tooling.\n   2. Run \`nerve start\` to launch the daemon.\n`,
+  );
+}
+
 async function runInitWorkspace(force: boolean): Promise<void> {
   const nerveRoot = getNerveRoot();
 
@@ -268,27 +338,11 @@ async function runInitWorkspace(force: boolean): Promise<void> {
     );
   }
 
-  // Verify better-sqlite3 native module — rebuild up to 2 times if broken
-  const sqlitePath = join(nerveRoot, "node_modules", "better-sqlite3");
-  if (existsSync(sqlitePath)) {
-    for (let attempt = 1; attempt <= 2; attempt++) {
-      if (await tryRequireSqlite(nerveRoot)) break;
-      process.stdout.write(
-        `${attempt === 1 ? "Building" : "Retrying build of"} native module better-sqlite3 (attempt ${attempt}/2)…\n`,
-      );
-      try {
-        await runCommand(cmd, ["rebuild", "better-sqlite3"], nerveRoot);
-      } catch {
-        // will be caught by the verify below
-      }
-    }
-    if (!(await tryRequireSqlite(nerveRoot))) {
-      process.stdout.write(
-        `⚠️ better-sqlite3 native module is not working. The daemon will fail to start.\n` +
-          `   Fix: cd ${nerveRoot} && ${cmd} rebuild better-sqlite3\n` +
-          `   Or:  npm install --build-from-source better-sqlite3\n`,
-      );
-    }
+  if (!(await verifyNodeSqlite())) {
+    process.stdout.write(
+      "⚠️ Built-in SQLite (node:sqlite) is not available in this Node.js build. " +
+        "The daemon requires Node.js 22.5 or newer with SQLite enabled.\n",
+    );
   }
 
   if (!existsSync(join(nerveRoot, ".git"))) {
@@ -310,7 +364,7 @@ export const initCommand = defineCommand({
   meta: {
     name: "init",
     description:
-      "Initialize workspace (nerve init) or scaffold templates (nerve init workflow <name>)",
+      "Initialize workspace (nerve init), clone from git (nerve init --from <url>), or scaffold templates (nerve init workflow <name>)",
   },
   args: {
     force: {
@@ -318,12 +372,21 @@ export const initCommand = defineCommand({
       description: "Reinitialize even if workspace already exists (preserves data/)",
       default: false,
     },
+    from: {
+      type: "string",
+      description: "Clone an existing git repo into ~/.uncaged-nerve instead of scaffolding",
+      required: false,
+    },
   },
   subCommands: {
     workflow: initWorkflowCommand,
     workspace: initWorkspaceCommand,
   },
   async run({ args }) {
+    if (args.from !== undefined) {
+      await runInitFromGit(String(args.from));
+      return;
+    }
     await runInitWorkspace(args.force);
   },
 });

packages/cli/src/commands/sense.ts

@@ -1,11 +1,20 @@
 import { readFileSync } from "node:fs";
 import { join } from "node:path";
+import { DatabaseSync } from "node:sqlite";
 
-import { parseNerveConfig } from "@uncaged/nerve-core";
+import { type SenseInfo, parseNerveConfig } from "@uncaged/nerve-core";
 import { defineCommand } from "citty";
 
 import { listSensesViaDaemon, triggerSenseViaDaemon } from "../daemon-client.js";
-import type { SenseInfo } from "../daemon-client.js";
+import {
+  assertSenseDbExists,
+  defaultPreviewSql,
+  formatRowsAsAlignedTable,
+  listTableSqlStatements,
+  openSenseDb,
+  parseSenseQueryArgs,
+  pickDefaultPreviewTable,
+} from "../sense-sqlite.js";
 import { getNerveRoot, getSocketPath, isRunning } from "../workspace.js";
 
 // ---------------------------------------------------------------------------
@@ -35,8 +44,7 @@ export function formatSenseList(senses: SenseInfo[]): string {
     lines.push(`    group:    ${s.group}\n`);
     lines.push(`    throttle: ${formatDuration(s.throttle)}\n`);
     lines.push(`    timeout:  ${formatDuration(s.timeout)}\n`);
-    const lastSignal =
-      s.lastSignalTs !== null ? new Date(s.lastSignalTs).toISOString() : "(never)";
+    const lastSignal = s.lastSignalTs !== null ? new Date(s.lastSignalTs).toISOString() : "(never)";
     lines.push(`    last signal: ${lastSignal}\n`);
   }
   return lines.join("");
@@ -72,7 +80,6 @@ const senseListCommand = defineCommand({
   },
   async run() {
     if (!isRunning()) {
-      // Daemon not running — show static info from nerve.yaml
       process.stderr.write(
         "⚠️  Daemon is not running — showing static config only (no last signal time).\n\n",
       );
@@ -141,6 +148,115 @@ const senseTriggerCommand = defineCommand({
   },
 });
 
+// ---------------------------------------------------------------------------
+// nerve sense schema <name>
+// ---------------------------------------------------------------------------
+
+const senseSchemaCommand = defineCommand({
+  meta: {
+    name: "schema",
+    description: "Print CREATE TABLE statements from a sense SQLite database",
+  },
+  args: {
+    name: {
+      type: "positional",
+      description: "Sense name (data/senses/<name>.db under the nerve workspace)",
+    },
+    json: {
+      type: "boolean",
+      description: "Print JSON array of CREATE TABLE SQL strings",
+      default: false,
+    },
+  },
+  async run({ args }) {
+    const nerveRoot = getNerveRoot();
+    let db: DatabaseSync | undefined;
+    try {
+      db = openSenseDb(nerveRoot, args.name);
+      const statements = listTableSqlStatements(db);
+      if (args.json) {
+        process.stdout.write(`${JSON.stringify(statements, null, 2)}\n`);
+      } else if (statements.length === 0) {
+        process.stdout.write("(no tables)\n");
+      } else {
+        for (const sql of statements) {
+          process.stdout.write(`${sql};\n\n`);
+        }
+      }
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : String(e);
+      process.stderr.write(`❌ ${msg}\n`);
+      process.exit(1);
+    } finally {
+      db?.close();
+    }
+  },
+});
+
+// ---------------------------------------------------------------------------
+// nerve sense query <name> [sql...]
+// ---------------------------------------------------------------------------
+
+const senseQueryCommand = defineCommand({
+  meta: {
+    name: "query",
+    description:
+      "Run a read-only SQL query against a sense database (default: last 10 rows of the first data table). Pass optional SQL after the sense name; multiple words are joined.",
+  },
+  args: {
+    name: {
+      type: "positional",
+      description: "Sense name (data/senses/<name>.db under the nerve workspace)",
+    },
+    json: {
+      type: "boolean",
+      description: "Print result rows as JSON",
+      default: false,
+    },
+  },
+  async run({ args, rawArgs }) {
+    const nerveRoot = getNerveRoot();
+    let db: DatabaseSync | undefined;
+    try {
+      let parsed: { name: string; sql: string | undefined };
+      try {
+        parsed = parseSenseQueryArgs(rawArgs);
+      } catch (e) {
+        const msg = e instanceof Error ? e.message : String(e);
+        process.stderr.write(`❌ ${msg}\n`);
+        process.exit(1);
+      }
+
+      db = openSenseDb(nerveRoot, args.name);
+
+      let sql = parsed.sql?.trim();
+      if (!sql) {
+        const table = pickDefaultPreviewTable(db);
+        if (table === null) {
+          process.stderr.write("❌ No tables found in database.\n");
+          process.exit(1);
+        } else {
+          sql = defaultPreviewSql(table);
+        }
+      }
+
+      const rows = db.prepare(sql).all() as Record<string, unknown>[];
+
+      if (args.json) {
+        process.stdout.write(`${JSON.stringify(rows, null, 2)}\n`);
+      } else {
+        process.stdout.write(formatRowsAsAlignedTable(rows));
+      }
+    } catch (e) {
+      const msg = e instanceof Error ? e.message : String(e);
+      process.stderr.write(`❌ ${msg}\n`);
+      process.exit(1);
+    } finally {
+      db?.close();
+    }
+  },
+});
+
 // ---------------------------------------------------------------------------
 // nerve sense (parent command)
 // ---------------------------------------------------------------------------
@@ -153,5 +269,7 @@ export const senseCommand = defineCommand({
   subCommands: {
     list: senseListCommand,
     trigger: senseTriggerCommand,
+    schema: senseSchemaCommand,
+    query: senseQueryCommand,
   },
 });

packages/cli/src/commands/start.ts

@@ -1,3 +1,4 @@
+import { spawn } from "node:child_process";
 import { createWriteStream, existsSync } from "node:fs";
 import { mkdir } from "node:fs/promises";
 import { dirname, join } from "node:path";
@@ -5,11 +6,10 @@ import { fileURLToPath } from "node:url";
 
 import { defineCommand } from "citty";
 
-import { runForegroundKernelSession } from "../run-foreground-kernel.js";
-import { loadDaemonModule } from "../workspace-daemon.js";
 import {
   getLogPath,
   getNerveRoot,
+  getSocketPath,
   isRunning,
   readPidFile,
   removePidFile,
@@ -52,15 +52,10 @@ function daemonBootstrapScript(): string {
     return bootstrapJs;
   }
   throw new Error(
-    `daemon-bootstrap.js not found next to CLI at ${bootstrapJs}. Build the CLI package (e.g. \`pnpm --filter @uncaged/nerve-cli build\`) before using background mode (\`nerve start -d\`).`,
+    `daemon-bootstrap.js not found next to CLI at ${bootstrapJs}. Build the CLI package (e.g. \`pnpm --filter @uncaged/nerve-cli build\`) before using \`nerve daemon start\`.`,
   );
 }
 
-async function runForeground(nerveRoot: string): Promise<void> {
-  const { createKernel } = await loadDaemonModule(nerveRoot);
-  await runForegroundKernelSession(nerveRoot, createKernel);
-}
-
 async function runDaemon(nerveRoot: string): Promise<void> {
   if (isRunning()) {
     const pid = readPidFile();
@@ -71,7 +66,6 @@ async function runDaemon(nerveRoot: string): Promise<void> {
   const logPath = getLogPath();
   await mkdir(join(nerveRoot, "logs"), { recursive: true });
 
-  const { spawn } = await import("node:child_process");
   const logStream = createWriteStream(logPath, { flags: "a" });
   await new Promise<void>((resolve) => {
     if (logStream.pending) logStream.once("open", () => resolve());
@@ -82,7 +76,7 @@ async function runDaemon(nerveRoot: string): Promise<void> {
 
   const child = spawn(process.execPath, [bootstrapPath], {
     detached: true,
-    stdio: ["ignore", logStream.fd, logStream.fd],
+    stdio: ["ignore", (logStream as any).fd, (logStream as any).fd],
     env: { ...process.env, NERVE_ROOT: nerveRoot },
     cwd: nerveRoot,
   });
@@ -97,7 +91,6 @@ async function runDaemon(nerveRoot: string): Promise<void> {
 
   writePidFile(pid);
 
-  const { getSocketPath } = await import("../workspace.js");
   const ready = await waitForSocket(getSocketPath(), 5000);
 
   if (!ready || !isRunning()) {
@@ -110,29 +103,20 @@ async function runDaemon(nerveRoot: string): Promise<void> {
 
   process.stdout.write(`✅ Nerve daemon started (pid ${pid}).\n`);
   process.stdout.write(`   Logs: ${logPath}\n`);
-  process.stdout.write("   Run `nerve stop` to stop.\n");
+  process.stdout.write("   Run `nerve daemon stop` (or `nerve stop`) to stop.\n");
 }
 
-export const startCommand = defineCommand({
+/** Background daemon only — use `nerve dev` for foreground mode. */
+export async function runDaemonStartCommand(): Promise<void> {
+  await runDaemon(getNerveRoot());
+}
+
+export const daemonStartCommand = defineCommand({
   meta: {
     name: "start",
-    description: "Start the nerve daemon",
+    description: "Start the nerve daemon in the background",
   },
-  args: {
-    daemon: {
-      type: "boolean",
-      alias: "d",
-      description: "Run as background daemon",
-      default: false,
-    },
-  },
-  async run({ args }) {
-    const nerveRoot = getNerveRoot();
-
-    if (args.daemon) {
-      await runDaemon(nerveRoot);
-    } else {
-      await runForeground(nerveRoot);
-    }
+  async run() {
+    await runDaemonStartCommand();
   },
 });

packages/cli/src/commands/stop.ts

@@ -15,44 +15,49 @@ async function waitForExit(pid: number, timeoutMs: number): Promise<boolean> {
   return false;
 }
 
+/** Core stop logic — also used by `nerve daemon restart`. */
+export async function runStopCommand(): Promise<void> {
+  const pid = readPidFile();
+  if (pid === null) {
+    process.stdout.write("⚠️ No PID file found — daemon may not be running.\n");
+    return;
+  }
+
+  if (!isRunning()) {
+    process.stdout.write("⚠️ Daemon is not running (stale PID file). Cleaning up.\n");
+    removePidFile();
+    return;
+  }
+
+  process.stdout.write(`Stopping nerve daemon (pid ${pid})…\n`);
+  try {
+    process.kill(pid, "SIGTERM");
+  } catch (e) {
+    const msg = e instanceof Error ? e.message : String(e);
+    process.stderr.write(`❌ Failed to send SIGTERM: ${msg}\n`);
+    process.exit(1);
+  }
+
+  const graceful = await waitForExit(pid, 10_000);
+  if (!graceful) {
+    process.stdout.write("⚠️ Daemon did not exit in 10s — sending SIGKILL.\n");
+    try {
+      process.kill(pid, "SIGKILL");
+    } catch {
+      // already dead
+    }
+  }
+
+  removePidFile();
+  process.stdout.write("✅ Daemon stopped.\n");
+}
+
 export const stopCommand = defineCommand({
   meta: {
     name: "stop",
     description: "Stop the nerve daemon",
   },
   async run() {
-    const pid = readPidFile();
-    if (pid === null) {
-      process.stdout.write("⚠️ No PID file found — daemon may not be running.\n");
-      return;
-    }
-
-    if (!isRunning()) {
-      process.stdout.write("⚠️ Daemon is not running (stale PID file). Cleaning up.\n");
-      removePidFile();
-      return;
-    }
-
-    process.stdout.write(`Stopping nerve daemon (pid ${pid})…\n`);
-    try {
-      process.kill(pid, "SIGTERM");
-    } catch (e) {
-      const msg = e instanceof Error ? e.message : String(e);
-      process.stderr.write(`❌ Failed to send SIGTERM: ${msg}\n`);
-      process.exit(1);
-    }
-
-    const graceful = await waitForExit(pid, 10_000);
-    if (!graceful) {
-      process.stdout.write("⚠️ Daemon did not exit in 10s — sending SIGKILL.\n");
-      try {
-        process.kill(pid, "SIGKILL");
-      } catch {
-        // already dead
-      }
-    }
-
-    removePidFile();
-    process.stdout.write("✅ Daemon stopped.\n");
+    await runStopCommand();
   },
 });

packages/cli/src/commands/workflow.ts

@@ -2,14 +2,21 @@ import { existsSync } from "node:fs";
 import { join } from "node:path";
 
 import { defineCommand } from "citty";
+import { stringify } from "yaml";
 
 import { triggerWorkflowViaDaemon } from "../daemon-client.js";
-import type { LogStore, WorkflowRun } from "../daemon-types.js";
+import type { LogStore, ThreadRoundRow, WorkflowRun } from "../daemon-types.js";
 import { loadDaemonModule } from "../workspace-daemon.js";
 import { getNerveRoot, getSocketPath, isRunning } from "../workspace.js";
 
 export const DEFAULT_PAGE_SIZE = 20;
 
+/** Default max characters for `nerve workflow thread` output (including run header). */
+export const DEFAULT_THREAD_BUDGET_CHARS = 8000;
+
+/** Max role-round rows read from SQLite per invocation (DESC by round). */
+export const THREAD_ROUNDS_FETCH_LIMIT = 8192;
+
 export function parseIntArg(raw: string, fallback: number): number {
   const v = Number.parseInt(raw, 10);
   return Number.isNaN(v) ? fallback : v;
@@ -172,6 +179,123 @@ export function buildInspectOutput(
   return { header, eventLines, paginationHint };
 }
 
+// ---------------------------------------------------------------------------
+// nerve workflow thread <runId> — agent-oriented role rounds
+// ---------------------------------------------------------------------------
+
+export type PartitionedEvent = {
+  typeStr: string;
+  roleStr: string;
+  contentBody: string;
+  rest: Record<string, unknown>;
+};
+
+/**
+ * Split a CommandEvent: `type`, `role`, and `content` are reserved for the
+ * header / body; all other fields are serialized as YAML frontmatter.
+ */
+export function partitionCommandEvent(event: Record<string, unknown>): PartitionedEvent {
+  const typeStr =
+    typeof event.type === "string" ? event.type : String(event.type === undefined ? "?" : event.type);
+  const roleStr = typeof event.role === "string" ? event.role : "?";
+  const contentRaw = event.content;
+  const contentBody =
+    contentRaw === undefined || contentRaw === null
+      ? ""
+      : typeof contentRaw === "string"
+        ? contentRaw
+        : JSON.stringify(contentRaw);
+  const rest: Record<string, unknown> = {};
+  for (const key of Object.keys(event)) {
+    if (key === "type" || key === "role" || key === "content") continue;
+    rest[key] = event[key];
+  }
+  return { typeStr, roleStr, contentBody, rest };
+}
+
+/**
+ * One role round as plain text: header line, YAML frontmatter (`rest` only), body (`content`).
+ */
+export function formatThreadRoundBlock(row: ThreadRoundRow): string {
+  const { typeStr, roleStr, contentBody, rest } = partitionCommandEvent(row.event);
+  const yamlBlock =
+    Object.keys(rest).length === 0 ? "{}\n" : `${stringify(rest, { lineWidth: 100 })}\n`;
+  return (
+    `[#${row.round} ${roleStr}] ${formatTs(row.ts)} type=${typeStr}\n` +
+    `---\n` +
+    yamlBlock +
+    `---\n` +
+    `${contentBody}\n\n`
+  );
+}
+
+export type ThreadCommandOutput = {
+  lines: string[];
+  paginationHint: string | null;
+};
+
+/**
+ * Build stdout lines for `nerve workflow thread`: newest-first selection from
+ * `descRows` until `budgetChars` (including `prefixLines`), then chronological order.
+ */
+export function buildThreadCommandOutput(
+  prefixLines: string[],
+  descRows: ThreadRoundRow[],
+  budgetChars: number,
+  runId: string,
+): ThreadCommandOutput {
+  const prefixText = prefixLines.join("");
+  let remaining = Math.max(0, budgetChars - prefixText.length);
+  const picked: ThreadRoundRow[] = [];
+
+  const budgetFlag =
+    budgetChars === DEFAULT_THREAD_BUDGET_CHARS ? "" : ` --budget ${String(budgetChars)}`;
+
+  for (const row of descRows) {
+    const block = formatThreadRoundBlock(row);
+    if (block.length <= remaining) {
+      picked.push(row);
+      remaining -= block.length;
+      continue;
+    }
+    if (picked.length === 0) {
+      const { typeStr, roleStr, contentBody, rest } = partitionCommandEvent(row.event);
+      const yamlBlock =
+        Object.keys(rest).length === 0
+          ? "{}\n"
+          : `${stringify(rest, { lineWidth: 100 })}\n`;
+      const header =
+        `[#${row.round} ${roleStr}] ${formatTs(row.ts)} type=${typeStr}\n` + `---\n` + yamlBlock + `---\n`;
+      const maxBody = Math.max(0, remaining - header.length - `[truncated]\n`.length);
+      const truncated =
+        maxBody > 0 && contentBody.length > maxBody
+          ? `${contentBody.slice(0, maxBody)}\n[truncated]\n`
+          : `${contentBody}\n[truncated]\n`;
+      const single = header + truncated + "\n";
+      const hintRound = row.round;
+      return {
+        lines: [...prefixLines, single],
+        paginationHint:
+          hintRound > 1
+            ? `\n⏩ Older rounds exist. Fetch with:\n   nerve workflow thread ${runId} --before ${String(hintRound)}${budgetFlag}\n`
+            : null,
+      };
+    }
+    break;
+  }
+
+  const blocksAsc = picked.map(formatThreadRoundBlock).reverse();
+  const shownMinRound = picked.length === 0 ? null : Math.min(...picked.map((r) => r.round));
+  let paginationHint: string | null = null;
+  if (shownMinRound !== null && shownMinRound > 1) {
+    paginationHint =
+      `\n⏩ Older rounds not shown. Fetch with:\n` +
+      `   nerve workflow thread ${runId} --before ${String(shownMinRound)}${budgetFlag}\n`;
+  }
+
+  return { lines: [...prefixLines, ...blocksAsc], paginationHint };
+}
+
 // ---------------------------------------------------------------------------
 // nerve workflow list
 // ---------------------------------------------------------------------------
@@ -293,6 +417,92 @@ const workflowInspectCommand = defineCommand({
   },
 });
 
+// ---------------------------------------------------------------------------
+// nerve workflow thread <runId>
+// ---------------------------------------------------------------------------
+
+const workflowThreadCommand = defineCommand({
+  meta: {
+    name: "thread",
+    description: "Print role rounds for a workflow run (agent-oriented, budget-limited)",
+  },
+  args: {
+    runId: {
+      type: "positional",
+      description: "The run ID to dump role rounds for",
+    },
+    before: {
+      type: "string",
+      description:
+        "Exclusive upper bound on 1-based round index (use with hint from prior output to load older rounds)",
+      default: "0",
+    },
+    budget: {
+      type: "string",
+      description: `Max output characters including header (default: ${String(DEFAULT_THREAD_BUDGET_CHARS)})`,
+      default: String(DEFAULT_THREAD_BUDGET_CHARS),
+    },
+  },
+  async run({ args }) {
+    const store = await openStore();
+
+    try {
+      const before = Math.max(0, parseIntArg(args.before, 0));
+      const budgetChars = Math.max(1, parseIntArg(args.budget, DEFAULT_THREAD_BUDGET_CHARS));
+
+      const run = store.getWorkflowRun(args.runId);
+      if (run === null) {
+        process.stderr.write(`❌ No workflow run found with runId: ${args.runId}\n`);
+        process.exit(1);
+      }
+
+      const totalRoleRounds = store.getThreadRoundCount(args.runId);
+      if (totalRoleRounds === 0) {
+        process.stdout.write(
+          `🧵 Workflow thread: ${run.runId}\n` +
+            `   workflow: ${run.workflow}\n` +
+            `   status:   ${run.status}\n\n` +
+            `📭 No role rounds recorded for this run.\n`,
+        );
+        return;
+      }
+
+      const descRows = store.getThreadRounds(args.runId, {
+        before,
+        limit: THREAD_ROUNDS_FETCH_LIMIT,
+      });
+
+      const prefixLines = [
+        `🧵 Role rounds (workflow thread)\n`,
+        `   runId:    ${run.runId}\n`,
+        `   workflow: ${run.workflow}\n`,
+        `   status:   ${run.status}\n`,
+        `   rounds:   ${String(totalRoleRounds)} role event(s) total\n\n`,
+      ];
+
+      const { lines, paginationHint } = buildThreadCommandOutput(
+        prefixLines,
+        descRows,
+        budgetChars,
+        args.runId,
+      );
+
+      for (const line of lines) {
+        process.stdout.write(line);
+      }
+      if (paginationHint !== null) {
+        process.stdout.write(paginationHint);
+      }
+
+      if (descRows.length === 0 && before > 0) {
+        process.stdout.write(`\n📭 No rounds with index < ${String(before)}.\n`);
+      }
+    } finally {
+      store.close();
+    }
+  },
+});
+
 // ---------------------------------------------------------------------------
 // nerve workflow trigger <name>
 // ---------------------------------------------------------------------------
@@ -359,6 +569,7 @@ export const workflowCommand = defineCommand({
   subCommands: {
     list: workflowListCommand,
     inspect: workflowInspectCommand,
+    thread: workflowThreadCommand,
     trigger: workflowTriggerCommand,
   },
 });

packages/cli/src/daemon-bootstrap.ts

@@ -1,5 +1,3 @@
-#!/usr/bin/env node
-
 import { runForegroundKernelSession } from "./run-foreground-kernel.js";
 import { loadDaemonModule } from "./workspace-daemon.js";
 

packages/cli/src/daemon-client.ts

@@ -8,18 +8,14 @@
 import { connect } from "node:net";
 import type { Socket } from "node:net";
 
+import type { SenseInfo } from "@uncaged/nerve-core";
+
 const CONNECT_TIMEOUT_MS = 3_000;
 const RESPONSE_TIMEOUT_MS = 5_000;
 
-type TriggerResponse = { ok: true } | { ok: false; error: string };
+export type { SenseInfo };
 
-export type SenseInfo = {
-  name: string;
-  group: string;
-  throttle: number | null;
-  timeout: number | null;
-  lastSignalTs: number | null;
-};
+type TriggerResponse = { ok: true } | { ok: false; error: string };
 
 type ListSensesResponse = { ok: true; senses: SenseInfo[] } | { ok: false; error: string };
 
@@ -37,12 +33,36 @@ function parseDaemonResponse(line: string): TriggerResponse {
   return { ok: false, error: `Unexpected daemon response: ${line}` };
 }
 
-function sendAndReceive(socketPath: string, message: object): Promise<TriggerResponse> {
+function parseListSensesResponse(line: string): ListSensesResponse {
+  try {
+    const obj = JSON.parse(line) as unknown;
+    if (obj !== null && typeof obj === "object") {
+      const r = obj as Record<string, unknown>;
+      if (r.ok === false && typeof r.error === "string") return { ok: false, error: r.error };
+      if (r.ok === true && Array.isArray(r.senses))
+        return { ok: true, senses: r.senses as SenseInfo[] };
+    }
+  } catch {
+    // fall through
+  }
+  return { ok: false, error: `Unexpected daemon response: ${line}` };
+}
+
+/**
+ * Connect to the daemon socket, send one JSON request (newline-terminated),
+ * and resolve with the first non-empty line parsed by `parseFirstLine`.
+ */
+function sendAndReceive<T>(
+  socketPath: string,
+  message: object,
+  parseFirstLine: (trimmed: string) => T,
+  responseTimeoutMs: number = RESPONSE_TIMEOUT_MS,
+): Promise<T> {
   return new Promise((resolve, reject) => {
     let socket: Socket | null = null;
     let settled = false;
 
-    function settle(result: TriggerResponse | Error): void {
+    function settle(result: T | Error): void {
       if (settled) return;
       settled = true;
       if (socket !== null) {
@@ -65,7 +85,7 @@ function sendAndReceive(socketPath: string, message: object): Promise<TriggerRes
 
       const responseTimer = setTimeout(() => {
         settle(new Error("Timed out waiting for daemon response"));
-      }, RESPONSE_TIMEOUT_MS);
+      }, responseTimeoutMs);
 
       let buf = "";
       socket?.on("data", (chunk: Buffer) => {
@@ -76,7 +96,7 @@ function sendAndReceive(socketPath: string, message: object): Promise<TriggerRes
           const trimmed = line.trim();
           if (trimmed.length === 0) continue;
           clearTimeout(responseTimer);
-          settle(parseDaemonResponse(trimmed));
+          settle(parseFirstLine(trimmed));
           return;
         }
       });
@@ -101,18 +121,19 @@ export function triggerWorkflowViaDaemon(
   workflow: string,
   payload: unknown,
 ): Promise<TriggerResponse> {
-  return sendAndReceive(socketPath, { type: "trigger-workflow", workflow, payload });
+  return sendAndReceive(
+    socketPath,
+    { type: "trigger-workflow", workflow, payload },
+    parseDaemonResponse,
+  );
 }
 
 /**
  * Send a trigger-sense message to the running daemon via its Unix socket.
  * Resolves with the daemon's response or rejects on connection/timeout errors.
  */
-export function triggerSenseViaDaemon(
-  socketPath: string,
-  sense: string,
-): Promise<TriggerResponse> {
-  return sendAndReceive(socketPath, { type: "trigger-sense", sense });
+export function triggerSenseViaDaemon(socketPath: string, sense: string): Promise<TriggerResponse> {
+  return sendAndReceive(socketPath, { type: "trigger-sense", sense }, parseDaemonResponse);
 }
 
 /**
@@ -120,71 +141,5 @@ export function triggerSenseViaDaemon(
  * Resolves with the list of registered senses or rejects on connection/timeout errors.
  */
 export function listSensesViaDaemon(socketPath: string): Promise<ListSensesResponse> {
-  return new Promise((resolve, reject) => {
-    let socket: Socket | null = null;
-    let settled = false;
-
-    function settle(result: ListSensesResponse | Error): void {
-      if (settled) return;
-      settled = true;
-      if (socket !== null) {
-        socket.destroy();
-        socket = null;
-      }
-      if (result instanceof Error) {
-        reject(result);
-      } else {
-        resolve(result);
-      }
-    }
-
-    const connectTimer = setTimeout(() => {
-      settle(new Error(`Timed out connecting to daemon socket: ${socketPath}`));
-    }, CONNECT_TIMEOUT_MS);
-
-    socket = connect(socketPath, () => {
-      clearTimeout(connectTimer);
-
-      const responseTimer = setTimeout(() => {
-        settle(new Error("Timed out waiting for daemon response"));
-      }, RESPONSE_TIMEOUT_MS);
-
-      let buf = "";
-      socket?.on("data", (chunk: Buffer) => {
-        buf += chunk.toString("utf8");
-        const lines = buf.split("\n");
-        buf = lines.pop() ?? "";
-        for (const line of lines) {
-          const trimmed = line.trim();
-          if (trimmed.length === 0) continue;
-          clearTimeout(responseTimer);
-          try {
-            const obj = JSON.parse(trimmed) as unknown;
-            if (obj !== null && typeof obj === "object") {
-              const r = obj as Record<string, unknown>;
-              if (r.ok === false && typeof r.error === "string") {
-                settle({ ok: false, error: r.error });
-                return;
-              }
-              if (r.ok === true && Array.isArray(r.senses)) {
-                settle({ ok: true, senses: r.senses as SenseInfo[] });
-                return;
-              }
-            }
-          } catch {
-            // fall through
-          }
-          settle({ ok: false, error: `Unexpected daemon response: ${trimmed}` });
-          return;
-        }
-      });
-
-      socket?.write(`${JSON.stringify({ type: "list-senses" })}\n`);
-    });
-
-    socket.on("error", (err) => {
-      clearTimeout(connectTimer);
-      settle(new Error(`Cannot connect to daemon: ${err.message}`));
-    });
-  });
+  return sendAndReceive(socketPath, { type: "list-senses" }, parseListSensesResponse);
 }

packages/cli/src/daemon-types.ts

@@ -58,6 +58,20 @@ export type ArchiveLogsResult = {
   vacuumed: boolean;
 };
 
+/** One role round row — keep in sync with daemon `log-store` `ThreadRoundRow`. */
+export type ThreadRoundRow = {
+  round: number;
+  logId: number;
+  ts: number;
+  event: { type: string; [key: string]: unknown };
+};
+
+/** Keep in sync with daemon `log-store` `GetThreadRoundsParams`. */
+export type GetThreadRoundsParams = {
+  before: number;
+  limit: number;
+};
+
 /** Subset of daemon LogStore used by the CLI workflow commands. */
 export type LogStore = {
   query: (filter?: LogQuery) => LogEntry[];
@@ -65,6 +79,8 @@ export type LogStore = {
   getActiveWorkflowRuns: (workflowName?: string) => WorkflowRun[];
   getAllWorkflowRuns: (workflowName: string | null) => WorkflowRun[];
   upsertWorkflowRun: (entry: Omit<LogEntry, "id">, run: WorkflowRun) => LogEntry;
+  getThreadRoundCount: (runId: string) => number;
+  getThreadRounds: (runId: string, params: GetThreadRoundsParams) => ThreadRoundRow[];
   archiveLogs: (options?: ArchiveLogsOptions) => ArchiveLogsResult;
   close: () => void;
 };

packages/cli/src/sense-sqlite.ts

@@ -0,0 +1,127 @@
+import { existsSync } from "node:fs";
+import { join } from "node:path";
+import { DatabaseSync } from "node:sqlite";
+
+/** SQLite path for a sense under the nerve workspace root. */
+export function senseDbPath(nerveRoot: string, senseName: string): string {
+  return join(nerveRoot, "data", "senses", `${senseName}.db`);
+}
+
+export function assertSenseDbExists(nerveRoot: string, senseName: string): string {
+  const path = senseDbPath(nerveRoot, senseName);
+  if (!existsSync(path)) {
+    throw new Error(`No database at ${path}`);
+  }
+  return path;
+}
+
+/** Open a sense SQLite database in readonly mode using node:sqlite. */
+export function openSenseDb(nerveRoot: string, senseName: string): DatabaseSync {
+  const path = assertSenseDbExists(nerveRoot, senseName);
+  return new DatabaseSync(path, { readOnly: true });
+}
+
+/** `SELECT sql FROM sqlite_master WHERE type='table'` (non-null sql only). */
+export function listTableSqlStatements(db: DatabaseSync): string[] {
+  const rows = db
+    .prepare(
+      `SELECT sql FROM sqlite_master WHERE type = 'table' AND sql IS NOT NULL ORDER BY tbl_name`,
+    )
+    .all() as { sql: string }[];
+  return rows.map((r) => r.sql);
+}
+
+/**
+ * Table used for `nerve sense query <name>` with no SQL.
+ * Prefers real data tables over `_migrations`, then lexicographic by name.
+ */
+export function pickDefaultPreviewTable(db: DatabaseSync): string | null {
+  const row = db
+    .prepare(
+      `SELECT name FROM sqlite_master
+       WHERE type = 'table' AND sql IS NOT NULL
+         AND name NOT LIKE 'sqlite\\_%' ESCAPE '\\'
+       ORDER BY
+         CASE WHEN name = '_migrations' THEN 1 ELSE 0 END,
+         name
+       LIMIT 1`,
+    )
+    .get() as { name: string } | undefined;
+  return row?.name ?? null;
+}
+
+export function defaultPreviewSql(table: string): string {
+  return `SELECT * FROM "${table.replace(/"/g, '""')}" ORDER BY rowid DESC LIMIT 10`;
+}
+
+/** Parse sense name and optional SQL from subcommand raw argv (flags stripped). */
+export function parseSenseQueryArgs(rawArgs: string[]): { name: string; sql: string | undefined } {
+  const pos: string[] = [];
+  for (let i = 0; i < rawArgs.length; i++) {
+    const a = rawArgs[i];
+    if (a === "--json" || a === "--no-json") continue;
+    if (a.startsWith("-")) {
+      const eq = a.indexOf("=");
+      if (eq === -1 && i + 1 < rawArgs.length && !rawArgs[i + 1].startsWith("-")) {
+        i += 1;
+      }
+      continue;
+    }
+    pos.push(a);
+  }
+  if (pos.length < 1) {
+    throw new Error("Missing sense name");
+  }
+  const name = pos[0];
+  const sql = pos.length > 1 ? pos.slice(1).join(" ") : undefined;
+  return { name, sql };
+}
+
+function stringifyCell(value: unknown): string {
+  if (value === null || value === undefined) return "";
+  if (typeof value === "bigint") return value.toString();
+  if (typeof value === "number" || typeof value === "boolean") return String(value);
+  if (typeof value === "string") return value;
+  if (Buffer.isBuffer(value)) return value.toString("hex");
+  try {
+    return JSON.stringify(value);
+  } catch {
+    return String(value);
+  }
+}
+
+/** Collect column keys in stable order (first row keys, then any extras). */
+export function collectColumnKeys(rows: Record<string, unknown>[]): string[] {
+  const keys: string[] = [];
+  const seen = new Set<string>();
+  for (const row of rows) {
+    for (const k of Object.keys(row)) {
+      if (!seen.has(k)) {
+        seen.add(k);
+        keys.push(k);
+      }
+    }
+  }
+  return keys;
+}
+
+const MAX_CELL = 64;
+
+function truncate(s: string): string {
+  if (s.length <= MAX_CELL) return s;
+  return `${s.slice(0, MAX_CELL - 1)}…`;
+}
+
+/** Plain aligned table for terminal output. */
+export function formatRowsAsAlignedTable(rows: Record<string, unknown>[]): string {
+  if (rows.length === 0) {
+    return "(0 rows)\n";
+  }
+  const cols = collectColumnKeys(rows);
+  const cells = rows.map((row) => cols.map((c) => truncate(stringifyCell(row[c]))));
+  const widths = cols.map((c, j) => Math.max(c.length, ...cells.map((r) => r[j].length)));
+  const sep = widths.map((w) => "-".repeat(w)).join("-+-");
+  const header = cols.map((c, j) => c.padEnd(widths[j])).join(" | ");
+  const body = cells.map((r) => r.map((cell, j) => cell.padEnd(widths[j])).join(" | ")).join("\n");
+  return `${header}\n${sep}\n${body}\n`;
+}

packages/cli/tsconfig.json

@@ -6,5 +6,6 @@
     "composite": false,
     "types": ["node"]
   },
-  "include": ["src"]
+  "include": ["src"],
+  "exclude": ["src/__tests__"]
 }

packages/cli/tsup.config.ts

@@ -1,13 +0,0 @@
-import { defineConfig } from "tsup";
-
-export default defineConfig({
-  entry: ["src/index.ts", "src/cli.ts", "src/daemon-bootstrap.ts"],
-  format: ["esm"],
-  dts: true,
-  clean: true,
-  banner: {
-    js: "#!/usr/bin/env node",
-  },
-  /** Daemon is loaded from workspace node_modules at runtime — never bundle it. */
-  external: ["@uncaged/nerve-daemon"],
-});

packages/core/README.md

@@ -0,0 +1,39 @@
+# @uncaged/nerve-core
+
+Shared types and configuration parser for the [nerve](../../README.md) observation engine.
+
+## What's Inside
+
+- **Type definitions** — `Signal`, `SenseConfig`, `ReflexConfig`, `WorkflowConfig`, `NerveConfig`, and all related types
+- **Config parser** — `parseNerveConfig(yaml)` validates and parses `nerve.yaml` into a typed `NerveConfig`
+- **Result type** — `Result<T>` with `ok()` / `err()` helpers for explicit error handling (no thrown exceptions)
+
+## Usage
+
+```typescript
+import { parseNerveConfig, ok, err } from "@uncaged/nerve-core";
+import type { NerveConfig, Signal, Result } from "@uncaged/nerve-core";
+
+const result: Result<NerveConfig> = parseNerveConfig(yamlString);
+if (result.ok) {
+  console.log(result.value.senses);
+}
+```
+
+## Duration Format
+
+Config fields like `throttle`, `timeout`, and `interval` accept human-readable durations:
+
+- `5s` — 5 seconds
+- `10m` — 10 minutes
+- `1h` — 1 hour
+
+## Install
+
+```bash
+pnpm add @uncaged/nerve-core
+```
+
+## License
+
+MIT

packages/core/package.json

@@ -1,17 +1,25 @@
 {
   "name": "@uncaged/nerve-core",
-  "version": "0.1.2",
+  "version": "0.2.0",
   "type": "module",
   "main": "dist/index.js",
+  "files": [
+    "dist"
+  ],
+  "publishConfig": {
+    "access": "public"
+  },
   "types": "dist/index.d.ts",
   "scripts": {
-    "build": "tsup",
+    "prepublishOnly": "bash ../../scripts/prepublish-check.sh",
+    "build": "rslib build",
     "test": "vitest run"
   },
   "dependencies": {
     "yaml": "^2.8.3"
   },
   "devDependencies": {
+    "@rslib/core": "^0.21.3",
     "vitest": "^4.1.5"
   }
 }

packages/core/rslib.config.ts

@@ -0,0 +1,19 @@
+import { defineConfig } from "@rslib/core";
+
+export default defineConfig({
+  lib: [
+    {
+      format: "esm",
+      dts: true,
+    },
+  ],
+  source: {
+    entry: {
+      index: "src/index.ts",
+    },
+  },
+  output: {
+    target: "node",
+    cleanDistPath: true,
+  },
+});

packages/core/src/index.ts

@@ -1,6 +1,7 @@
 export type {
   Signal,
   SenseConfig,
+  SenseInfo,
   SenseReflexConfig,
   WorkflowReflexConfig,
   ReflexConfig,

packages/core/src/types.ts

@@ -12,6 +12,15 @@ export type SenseConfig = {
   gracePeriod: number | null;
 };
 
+/** Runtime metadata for a sense (e.g. daemon list-senses IPC). */
+export type SenseInfo = {
+  name: string;
+  group: string;
+  throttle: number | null;
+  timeout: number | null;
+  lastSignalTs: number | null;
+};
+
 export type SenseReflexConfig = {
   kind: "sense";
   sense: string;

packages/core/tsup.config.ts

@@ -1,8 +0,0 @@
-import { defineConfig } from "tsup";
-
-export default defineConfig({
-  entry: ["src/index.ts"],
-  format: ["esm"],
-  dts: true,
-  clean: true,
-});

packages/daemon/README.md

@@ -0,0 +1,57 @@
+# @uncaged/nerve-daemon
+
+The observation engine runtime for [nerve](../../README.md) — runs senses, routes signals, schedules reflexes, and manages workflows.
+
+## Architecture
+
+| Module | Responsibility |
+|--------|---------------|
+| **Kernel** | Top-level orchestrator — spawns workers, wires up signal bus, scheduler, and workflow manager. Supports hot reload and graceful shutdown. |
+| **Sense Runtime** | Per-sense SQLite database (via `node:sqlite` + Drizzle ORM), migration runner, peer DB read access. |
+| **Sense Worker** | Forked child process — one per sense group. Runs compute functions in isolation. |
+| **Signal Bus** | In-memory pub/sub. Sense computes emit signals; reflexes and workflows subscribe. |
+| **Reflex Scheduler** | Drives compute triggers — interval timers, signal-based events, throttle/coalesce logic. |
+| **Workflow Manager** | Concurrency control (drop/queue), thread lifecycle, worker process management (RFC-002). |
+| **Log Store** | Structured log storage in WAL-mode SQLite. Supports retention policies, archival to JSONL, and workflow run tracking. |
+| **Blob Store** | Binary artifact storage for workflow outputs. |
+| **File Watcher** | Watches `nerve.yaml` and sense files for hot reload. |
+| **Daemon IPC** | Unix socket server for CLI ↔ daemon communication. |
+
+## Key Design Decisions
+
+- **One worker process per sense group** — isolation between groups, shared compute within a group
+- **`node:sqlite` (DatabaseSync)** — zero native addons, WAL mode, built into Node.js ≥ 22.5
+- **Throttle + coalesce** — if compute is in-flight, at most one pending trigger is queued (no unbounded accumulation)
+- **Log ≠ Signal** — logs are queryable data assets but cannot trigger reflexes (prevents feedback loops)
+
+## Usage
+
+The daemon is typically started via the CLI (`nerve daemon start`), but can be used programmatically:
+
+```typescript
+import { createKernel } from "@uncaged/nerve-daemon";
+
+const kernel = await createKernel(nerveRoot);
+await kernel.ready;
+
+// Trigger a sense manually
+kernel.triggerSense("cpu-usage");
+
+// Check health
+const health = kernel.getHealth();
+
+// Graceful shutdown
+await kernel.stop();
+```
+
+## Install
+
+```bash
+pnpm add @uncaged/nerve-daemon
+```
+
+Requires Node.js ≥ 22.5 (for `node:sqlite`).
+
+## License
+
+MIT

packages/daemon/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@uncaged/nerve-daemon",
-  "version": "0.1.3",
+  "version": "0.2.0",
   "type": "module",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -11,17 +11,18 @@
     "access": "public"
   },
   "scripts": {
-    "build": "tsup",
+    "prepublishOnly": "bash ../../scripts/prepublish-check.sh",
+    "build": "rslib build",
     "test": "vitest run"
   },
   "dependencies": {
     "@uncaged/nerve-core": "workspace:*",
-    "better-sqlite3": "^11.10.0",
-    "drizzle-orm": "^0.43.1",
+    "drizzle-orm": "1.0.0-beta.23-c10d10c",
     "yaml": "^2.8.3"
   },
   "devDependencies": {
-    "@types/better-sqlite3": "^7.6.13",
+    "@rslib/core": "^0.21.3",
+    "@types/node": "^22.0.0",
     "vitest": "^4.1.5"
   }
 }

packages/daemon/rslib.config.ts

@@ -0,0 +1,21 @@
+import { defineConfig } from "@rslib/core";
+
+export default defineConfig({
+  lib: [
+    {
+      format: "esm",
+      dts: true,
+    },
+  ],
+  source: {
+    entry: {
+      index: "src/index.ts",
+      "sense-worker": "src/sense-worker.ts",
+      "workflow-worker": "src/workflow-worker.ts",
+    },
+  },
+  output: {
+    target: "node",
+    cleanDistPath: true,
+  },
+});

packages/daemon/src/__tests__/crash-recovery.test.ts

@@ -89,10 +89,13 @@ function makeLogStore(
       }
       return activeRuns;
     }),
-    getTriggerPayload: vi.fn(() => ({ value: 42 })),
-    getThreadEvents: vi.fn(() => [{ type: "thread_start", triggerPayload: {} }]),
+    getTriggerPayload: vi.fn((): unknown => ({ value: 42 })),
+    getThreadEvents: vi.fn((): Array<{ type: string; [key: string]: unknown }> => [{ type: "thread_start", triggerPayload: {} }]),
+    getThreadRoundCount: vi.fn(() => 0),
+    getThreadRounds: vi.fn(() => []),
     archiveLogs: vi.fn(() => ({ days: [], vacuumed: false })),
     close: vi.fn(),
+    getAllWorkflowRuns: vi.fn(() => []),
   };
   return store;
 }
@@ -127,7 +130,7 @@ describe("WorkflowManager — crash recovery (Phase 3)", () => {
       child.emit("exit", 1, null);
 
       const crashedCalls = logStore.upsertWorkflowRun.mock.calls.filter(
-        ([entry]: [{ type: string }]) => entry.type === "crashed",
+        (args: any[]) => (args[0] as { type: string }).type === "crashed",
       );
       expect(crashedCalls).toHaveLength(2);
 
@@ -216,10 +219,10 @@ describe("WorkflowManager — crash recovery (Phase 3)", () => {
 
       // resume-thread should have been sent
       const resumeCalls = (secondChild.send as ReturnType<typeof vi.fn>).mock.calls.filter(
-        ([msg]: [unknown]) =>
-          msg !== null &&
-          typeof msg === "object" &&
-          (msg as Record<string, unknown>).type === "resume-thread",
+        (args: any[]) =>
+          args[0] !== null &&
+          typeof args[0] === "object" &&
+          (args[0] as Record<string, unknown>).type === "resume-thread",
       );
       expect(resumeCalls).toHaveLength(1);
       expect(resumeCalls[0][0]).toMatchObject({
@@ -286,7 +289,7 @@ describe("WorkflowManager — crash recovery (Phase 3)", () => {
       });
 
       const appendCalls = logStore.append.mock.calls.filter(
-        ([entry]: [{ type: string }]) => entry.type === "thread_command_event",
+        (args: any[]) => (args[0] as { type: string }).type === "thread_command_event",
       );
       expect(appendCalls).toHaveLength(1);
       expect(appendCalls[0][0]).toMatchObject({
@@ -313,7 +316,7 @@ describe("WorkflowManager — crash recovery (Phase 3)", () => {
       mgr.startWorkflow("my-wf", payload);
 
       const startedCall = logStore.upsertWorkflowRun.mock.calls.find(
-        ([entry]: [{ type: string }]) => entry.type === "started",
+        (args: any[]) => (args[0] as { type: string }).type === "started",
       );
       expect(startedCall).toBeDefined();
       const logEntry = startedCall?.[0] as { payload: string | null };

packages/daemon/src/__tests__/hot-reload.test.ts

@@ -77,8 +77,11 @@ function makeLogStore() {
     getActiveWorkflowRuns: vi.fn(() => []),
     getTriggerPayload: vi.fn(() => null),
     getThreadEvents: vi.fn(() => []),
+    getThreadRoundCount: vi.fn(() => 0),
+    getThreadRounds: vi.fn(() => []),
     archiveLogs: vi.fn(() => ({ days: [], vacuumed: false })),
     close: vi.fn(),
+    getAllWorkflowRuns: vi.fn(() => []),
   };
 }
 
@@ -126,7 +129,7 @@ describe("WorkflowManager — drainAndRespawn (Phase 3 hot reload)", () => {
     await drainPromise;
 
     const interruptedCalls = logStore.upsertWorkflowRun.mock.calls.filter(
-      ([entry]: [{ type: string }]) => entry.type === "interrupted",
+      (args: any[]) => (args[0] as { type: string }).type === "interrupted",
     );
     expect(interruptedCalls).toHaveLength(2);
 
@@ -190,10 +193,10 @@ describe("WorkflowManager — drainAndRespawn (Phase 3 hot reload)", () => {
 
     const newChild = mockChildren[1];
     const resumeCalls = (newChild.send as ReturnType<typeof vi.fn>).mock.calls.filter(
-      ([msg]: [unknown]) =>
-        msg !== null &&
-        typeof msg === "object" &&
-        (msg as Record<string, unknown>).type === "resume-thread",
+      (args: any[]) =>
+        args[0] !== null &&
+        typeof args[0] === "object" &&
+        (args[0] as Record<string, unknown>).type === "resume-thread",
     );
     expect(resumeCalls).toHaveLength(0);
 
@@ -218,10 +221,10 @@ describe("WorkflowManager — drainAndRespawn (Phase 3 hot reload)", () => {
 
     const newChild = mockChildren[1];
     const startCalls = (newChild.send as ReturnType<typeof vi.fn>).mock.calls.filter(
-      ([msg]: [unknown]) =>
-        msg !== null &&
-        typeof msg === "object" &&
-        (msg as Record<string, unknown>).type === "start-thread",
+      (args: any[]) =>
+        args[0] !== null &&
+        typeof args[0] === "object" &&
+        (args[0] as Record<string, unknown>).type === "start-thread",
     );
     expect(startCalls).toHaveLength(1);
 
@@ -266,7 +269,7 @@ describe("Kernel — workflow hot reload via file-watcher (Phase 3)", () => {
     // Kernel's handleWorkflowFileChange should log a workflow_reload event
     // We test this via the kernel itself
     const appendCalls = logStore.append.mock.calls;
-    const startCall = appendCalls.find(([e]: [{ type: string }]) => e.type === "start");
+    const startCall = appendCalls.find((args: any[]) => (args[0] as { type: string }).type === "start");
     expect(startCall).toBeDefined();
 
     const stopPromise = kernel.stop();

packages/daemon/src/__tests__/kernel-trigger-sense.test.ts

@@ -2,7 +2,7 @@
  * Unit tests for kernel.triggerSense() — IPC issue #36.
  *
  * These tests use a mock child_process and a mock LogStore so they do NOT
- * require better-sqlite3 to be present in the test environment.
+ * require a real LogStore (node:sqlite) in integration tests.
  */
 
 import { EventEmitter } from "node:events";
@@ -58,7 +58,7 @@ vi.mock("node:child_process", () => ({
 const { createKernel } = await import("../kernel.js");
 
 // ---------------------------------------------------------------------------
-// Mock LogStore factory (avoids better-sqlite3 dependency)
+// Mock LogStore factory (avoids SQLite I/O in this unit test)
 // ---------------------------------------------------------------------------
 
 function makeMockLogStore() {
@@ -74,6 +74,8 @@ function makeMockLogStore() {
     getAllWorkflowRuns: vi.fn(() => []),
     getTriggerPayload: vi.fn(() => null),
     getThreadEvents: vi.fn(() => []),
+    getThreadRoundCount: vi.fn(() => 0),
+    getThreadRounds: vi.fn(() => []),
     archiveLogs: vi.fn(() => ({ days: [], vacuumed: false })),
     close: vi.fn(),
   };

packages/daemon/src/__tests__/kernel-workflow-integration.test.ts

@@ -78,8 +78,11 @@ function makeLogStore() {
     appendWithWorkflowUpdate: vi.fn(),
     getWorkflowRun: vi.fn(() => null),
     getActiveWorkflowRuns: vi.fn(() => []),
+    getAllWorkflowRuns: vi.fn(() => []),
     getTriggerPayload: vi.fn(() => null),
     getThreadEvents: vi.fn(() => []),
+    getThreadRoundCount: vi.fn(() => 0),
+    getThreadRounds: vi.fn(() => []),
     archiveLogs: vi.fn(() => ({ days: [], vacuumed: false })),
     close: vi.fn(),
   };
@@ -137,10 +140,10 @@ describe("kernel + workflowManager integration", () => {
       // We need to check that a start-thread message was sent to the workflow worker
       const workflowWorker = mockChildren.find((c) =>
         (c.send as ReturnType<typeof vi.fn>).mock.calls.some(
-          ([msg]: [unknown]) =>
-            msg !== null &&
-            typeof msg === "object" &&
-            (msg as Record<string, unknown>).type === "start-thread",
+          (args: unknown[]) =>
+            args[0] !== null &&
+            typeof args[0] === "object" &&
+            (args[0] as Record<string, unknown>).type === "start-thread",
         ),
       );
       expect(workflowWorker).toBeDefined();
@@ -212,10 +215,10 @@ describe("kernel + workflowManager integration", () => {
       // No workflow worker should have been spawned (only the sense group worker)
       const workflowWorkerSpawned = mockChildren.some((c) =>
         (c.send as ReturnType<typeof vi.fn>).mock.calls.some(
-          ([msg]: [unknown]) =>
-            msg !== null &&
-            typeof msg === "object" &&
-            (msg as Record<string, unknown>).type === "start-thread",
+          (args: unknown[]) =>
+            args[0] !== null &&
+            typeof args[0] === "object" &&
+            (args[0] as Record<string, unknown>).type === "start-thread",
         ),
       );
       expect(workflowWorkerSpawned).toBe(false);

packages/daemon/src/__tests__/kernel.test.ts

@@ -1,4 +1,7 @@
 import { EventEmitter } from "node:events";
+import { mkdtempSync, rmSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
 
 import type { NerveConfig } from "@uncaged/nerve-core";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
@@ -44,6 +47,7 @@ vi.mock("node:child_process", () => ({
 
 // Import after mock is set up
 const { createKernel } = await import("../kernel.js");
+const { createLogStore } = await import("../log-store.js");
 
 // ---------------------------------------------------------------------------
 // Helpers
@@ -93,6 +97,29 @@ describe("kernel — message routing", () => {
     await kernel.stop();
   });
 
+  it("persists emitted signals as sense/signal log entries", async () => {
+    const tmpDir = mkdtempSync(join(tmpdir(), "nerve-kernel-sig-"));
+    const logStore = createLogStore(join(tmpDir, "logs.db"));
+    try {
+      const config = makeConfig({
+        senses: {
+          "cpu-usage": { group: "system", throttle: null, timeout: null, gracePeriod: null },
+        },
+        reflexes: [],
+      });
+      const kernel = createKernel(config, tmpDir, { logStore });
+      const child = mockChildren[0];
+      child.emit("message", { type: "ready" });
+      child.emit("message", { type: "signal", sense: "cpu-usage", payload: 123 });
+      const rows = logStore.query({ source: "sense", type: "signal", refId: "cpu-usage" });
+      expect(rows).toHaveLength(1);
+      expect(rows[0].payload).toBe(JSON.stringify(123));
+      await kernel.stop();
+    } finally {
+      rmSync(tmpDir, { recursive: true, force: true });
+    }
+  });
+
   it("routes error message to stderr", async () => {
     const stderrSpy = vi.spyOn(process.stderr, "write").mockImplementation(() => true);
     const config = makeConfig({

packages/daemon/src/__tests__/log-store-crash-recovery.test.ts

@@ -195,4 +195,65 @@ describe("LogStore — crash recovery helpers (Phase 3)", () => {
       expect(result8[0].type).toBe("event_for_8");
     });
   });
+
+  describe("getThreadRoundCount / getThreadRounds", () => {
+    it("excludes thread_start from rounds and assigns ROW_NUMBER in chronological order", () => {
+      store.append({
+        source: "workflow",
+        type: "thread_command_event",
+        refId: "run-tr",
+        payload: JSON.stringify({ type: "thread_start", triggerPayload: { x: 1 } }),
+        ts: 100,
+      });
+      store.append({
+        source: "workflow",
+        type: "thread_command_event",
+        refId: "run-tr",
+        payload: JSON.stringify({
+          type: "step_a",
+          role: "alpha",
+          content: "hello",
+          meta: 1,
+        }),
+        ts: 101,
+      });
+      store.append({
+        source: "workflow",
+        type: "thread_command_event",
+        refId: "run-tr",
+        payload: JSON.stringify({ type: "step_b", role: "beta", content: "world" }),
+        ts: 102,
+      });
+
+      expect(store.getThreadRoundCount("run-tr")).toBe(2);
+
+      const all = store.getThreadRounds("run-tr", { before: 0, limit: 50 });
+      expect(all).toHaveLength(2);
+      expect(all.map((r) => r.round)).toEqual([2, 1]);
+      expect(all[0].event.type).toBe("step_b");
+      expect(all[1].event.type).toBe("step_a");
+    });
+
+    it("getThreadRounds respects exclusive before bound", () => {
+      for (let i = 0; i < 3; i++) {
+        store.append({
+          source: "workflow",
+          type: "thread_command_event",
+          refId: "run-b4",
+          payload: JSON.stringify({ type: `ev_${i}`, role: "r", content: String(i) }),
+          ts: 200 + i,
+        });
+      }
+
+      expect(store.getThreadRoundCount("run-b4")).toBe(3);
+
+      const page = store.getThreadRounds("run-b4", { before: 3, limit: 50 });
+      expect(page.map((r) => r.round)).toEqual([2, 1]);
+    });
+
+    it("returns empty when no role rounds for runId", () => {
+      expect(store.getThreadRoundCount("missing")).toBe(0);
+      expect(store.getThreadRounds("missing", { before: 0, limit: 10 })).toHaveLength(0);
+    });
+  });
 });

packages/daemon/src/__tests__/sense-runtime.test.ts

@@ -2,15 +2,15 @@ import { mkdirSync, mkdtempSync, writeFileSync } from "node:fs";
 import { tmpdir } from "node:os";
 import { join } from "node:path";
 
-import Database from "better-sqlite3";
-import { drizzle } from "drizzle-orm/better-sqlite3";
+import { DatabaseSync } from "node:sqlite";
+import { drizzle } from "drizzle-orm/node-sqlite";
 import { integer, real, sqliteTable } from "drizzle-orm/sqlite-core";
 import { describe, expect, it } from "vitest";
 
 import { createBlobStore } from "../blob-store.js";
 import { parseParentMessage } from "../ipc.js";
 import { executeCompute, openPeerDb, openSenseDb, runMigrations } from "../sense-runtime.js";
-import type { DrizzleDB, PeerMap, SenseRuntime } from "../sense-runtime.js";
+import type { ComputeFn, DrizzleDB, PeerMap, SenseRuntime } from "../sense-runtime.js";
 
 // ---------------------------------------------------------------------------
 // Helpers
@@ -49,7 +49,7 @@ const samples = sqliteTable("samples", {
 
 describe("runMigrations", () => {
   it("creates table via SQL migration file", () => {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     const migrationsDir = makeTempMigrationsDir(INIT_SQL);
     const result = runMigrations(sqlite, migrationsDir);
 
@@ -64,7 +64,7 @@ describe("runMigrations", () => {
   });
 
   it("runs multiple migrations in lexicographic order", () => {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     const dir = mkdtempSync(join(tmpdir(), "nerve-multi-"));
 
     writeFileSync(join(dir, "0001_init.sql"), INIT_SQL);
@@ -81,7 +81,7 @@ describe("runMigrations", () => {
   });
 
   it("returns ok when migrations directory is empty", () => {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     const dir = makeTempMigrationsDirEmpty();
     const result = runMigrations(sqlite, dir);
     expect(result.ok).toBe(true);
@@ -89,14 +89,14 @@ describe("runMigrations", () => {
   });
 
   it("returns err when migrations directory does not exist", () => {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     const result = runMigrations(sqlite, "/nonexistent/path/migrations");
     expect(result.ok).toBe(false);
     sqlite.close();
   });
 
   it("returns err when a migration SQL is invalid", () => {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     const dir = mkdtempSync(join(tmpdir(), "nerve-bad-sql-"));
     writeFileSync(join(dir, "0001_bad.sql"), "NOT VALID SQL !!!;");
     const result = runMigrations(sqlite, dir);
@@ -141,7 +141,7 @@ describe("openPeerDb", () => {
   it("opens an existing db in read-only mode", () => {
     // Create a writable db first
     const dbPath = makeTempDbPath();
-    const sqlite = new Database(dbPath);
+    const sqlite = new DatabaseSync(dbPath);
     sqlite.exec(INIT_SQL);
     sqlite.prepare("INSERT INTO samples (ts, value) VALUES (1, 42.0)").run();
     sqlite.close();
@@ -168,13 +168,13 @@ describe("openPeerDb", () => {
 // ---------------------------------------------------------------------------
 
 describe("executeCompute", () => {
-  function makeRuntime(computeFn: (db: DrizzleDB, peers: PeerMap) => Promise<unknown | null>): {
+  function makeRuntime(computeFn: ComputeFn): {
     runtime: SenseRuntime;
-    sqlite: Database.Database;
+    sqlite: DatabaseSync;
   } {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     sqlite.exec(INIT_SQL);
-    const db = drizzle(sqlite) as DrizzleDB;
+    const db = drizzle({ client: sqlite }) as DrizzleDB;
     return {
       runtime: { name: "test-sense", db, compute: computeFn },
       sqlite,
@@ -226,10 +226,10 @@ describe("executeCompute", () => {
 
   it("compute can read from peers", async () => {
     // Set up a peer db with data
-    const peerSqlite = new Database(":memory:");
+    const peerSqlite = new DatabaseSync(":memory:");
     peerSqlite.exec(INIT_SQL);
     peerSqlite.prepare("INSERT INTO samples (ts, value) VALUES (100, 3.14)").run();
-    const peerDb = drizzle(peerSqlite) as DrizzleDB;
+    const peerDb = drizzle({ client: peerSqlite }) as DrizzleDB;
 
     const peers: PeerMap = { "other-sense": peerDb };
 
@@ -248,9 +248,9 @@ describe("executeCompute", () => {
   });
 
   it("write to own db does not affect peer db (isolation)", async () => {
-    const peerSqlite = new Database(":memory:");
+    const peerSqlite = new DatabaseSync(":memory:");
     peerSqlite.exec(INIT_SQL);
-    const peerDb = drizzle(peerSqlite) as DrizzleDB;
+    const peerDb = drizzle({ client: peerSqlite }) as DrizzleDB;
     const peers: PeerMap = { "peer-sense": peerDb };
 
     const { runtime, sqlite } = makeRuntime(async (db) => {
@@ -403,7 +403,7 @@ describe("parseParentMessage", () => {
 
 describe("runMigrations journal", () => {
   it("does not re-run an already-applied migration", () => {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     const dir = mkdtempSync(join(tmpdir(), "nerve-journal-"));
     writeFileSync(join(dir, "0001_init.sql"), INIT_SQL);
 
@@ -430,7 +430,7 @@ describe("runMigrations journal", () => {
   });
 
   it("tracks migrations in _migrations table", () => {
-    const sqlite = new Database(":memory:");
+    const sqlite = new DatabaseSync(":memory:");
     const dir = mkdtempSync(join(tmpdir(), "nerve-journal2-"));
     writeFileSync(join(dir, "0001_init.sql"), INIT_SQL);
 

packages/daemon/src/__tests__/workflow-manager.test.ts

@@ -74,8 +74,11 @@ function makeLogStore() {
     getActiveWorkflowRuns: vi.fn(() => []),
     getTriggerPayload: vi.fn(() => null),
     getThreadEvents: vi.fn(() => []),
+    getThreadRoundCount: vi.fn(() => 0),
+    getThreadRounds: vi.fn(() => []),
     archiveLogs: vi.fn(() => ({ days: [], vacuumed: false })),
     close: vi.fn(),
+    getAllWorkflowRuns: vi.fn(() => []),
   };
 }
 

packages/daemon/src/daemon-ipc.ts

@@ -13,8 +13,12 @@
 import { rmSync } from "node:fs";
 import { type Server, type Socket, createServer } from "node:net";
 
+import type { SenseInfo } from "@uncaged/nerve-core";
+
 import type { WorkflowManager } from "./workflow-manager.js";
 
+export type { SenseInfo };
+
 /** JSON message sent by the CLI to trigger a workflow. */
 export type TriggerWorkflowRequest = {
   type: "trigger-workflow";
@@ -33,15 +37,6 @@ export type ListSensesRequest = {
   type: "list-senses";
 };
 
-/** Runtime info about a single sense returned by list-senses. */
-export type SenseInfo = {
-  name: string;
-  group: string;
-  throttle: number | null;
-  timeout: number | null;
-  lastSignalTs: number | null;
-};
-
 type DaemonRequest = TriggerWorkflowRequest | TriggerSenseRequest | ListSensesRequest;
 
 type DaemonResponse =

packages/daemon/src/index.ts

@@ -29,6 +29,8 @@ export {
 export { createKernel } from "./kernel.js";
 export type { Kernel, KernelOptions, KernelHealth } from "./kernel.js";
 
+export type { SenseInfo } from "./daemon-ipc.js";
+
 export { createFileWatcher } from "./file-watcher.js";
 export type { FileWatcher, FileChange, FileChangeHandler } from "./file-watcher.js";
 
@@ -45,6 +47,8 @@ export type {
   ArchiveLogsDayResult,
   ArchiveLogsOptions,
   ArchiveLogsResult,
+  ThreadRoundRow,
+  GetThreadRoundsParams,
 } from "./log-store.js";
 
 export { createWorkflowManager } from "./workflow-manager.js";

packages/daemon/src/kernel.ts

@@ -18,11 +18,11 @@ import { readFileSync } from "node:fs";
 import { dirname, join } from "node:path";
 import { fileURLToPath } from "node:url";
 
-import type { NerveConfig, Signal } from "@uncaged/nerve-core";
+import type { NerveConfig, SenseInfo, Signal } from "@uncaged/nerve-core";
 import { parseNerveConfig } from "@uncaged/nerve-core";
 
 import { createDaemonIpcServer } from "./daemon-ipc.js";
-import type { DaemonIpcServer, SenseInfo } from "./daemon-ipc.js";
+import type { DaemonIpcServer } from "./daemon-ipc.js";
 import { createFileWatcher } from "./file-watcher.js";
 import type { FileWatcher } from "./file-watcher.js";
 import type { ComputeMessage, ShutdownMessage } from "./ipc.js";
@@ -33,6 +33,11 @@ import { createReflexScheduler } from "./reflex-scheduler.js";
 import type { ReflexScheduler } from "./reflex-scheduler.js";
 import { createSignalBus } from "./signal-bus.js";
 import type { SignalBus } from "./signal-bus.js";
+import {
+  formatCapturedStderrTail,
+  formatChildExitSummary,
+  teeCapturedStderr,
+} from "./worker-fork-support.js";
 import { createWorkflowManager } from "./workflow-manager.js";
 import type { WorkflowManager } from "./workflow-manager.js";
 
@@ -84,12 +89,22 @@ function resolveWorkerScript(): string {
   return join(__dir, "sense-worker.js");
 }
 
-function spawnWorker(nerveRoot: string, group: string, workerScript: string): ChildProcess {
+function spawnWorker(
+  nerveRoot: string,
+  group: string,
+  workerScript: string,
+  stderrTail: { value: string },
+): ChildProcess {
   const child = fork(workerScript, ["--group", group, "--root", nerveRoot], {
-    stdio: ["ignore", "inherit", "inherit", "ipc"],
+    stdio: ["ignore", "inherit", "pipe", "ipc"],
   });
+  teeCapturedStderr(child, stderrTail);
   // Prevent unhandled EPIPE when writing to a child whose IPC channel closed
-  child.on("error", () => {});
+  child.on("error", (err) => {
+    if ((err as NodeJS.ErrnoException).code !== "EPIPE") {
+      console.error("[worker] error:", err.message);
+    }
+  });
   return child;
 }
 
@@ -222,8 +237,8 @@ export function createKernel(
         ts: Date.now(),
       };
       logStore.append({
-        source: "reflex",
-        type: "run_complete",
+        source: "sense",
+        type: "signal",
         refId: msg.sense,
         payload: JSON.stringify(msg.payload),
         ts: signal.ts,
@@ -236,7 +251,8 @@ export function createKernel(
   }
 
   function startWorker(group: string): Promise<void> {
-    const child = spawnWorker(nerveRoot, group, workerScript);
+    const stderrTail = { value: "" };
+    const child = spawnWorker(nerveRoot, group, workerScript, stderrTail);
 
     let workerReadyResolve: (() => void) | undefined;
     const workerReady = new Promise<void>((resolve) => {
@@ -251,9 +267,10 @@ export function createKernel(
       handleWorkerMessage(raw);
     });
 
-    child.on("exit", (code) => {
+    child.on("exit", (code, signal) => {
+      const summary = formatChildExitSummary(code, signal ?? null);
       process.stderr.write(
-        `[kernel] worker for group "${group}" exited with code ${code ?? "null"}\n`,
+        `[kernel] worker for group "${group}" exited (${summary})${formatCapturedStderrTail(stderrTail.value)}\n`,
       );
       // Resolve ready in case the worker exits before sending ready (prevents hangs)
       workerReadyResolve?.();
@@ -524,8 +541,8 @@ export function createKernel(
       listSenses(): SenseInfo[] {
         return Object.entries(config.senses).map(([name, senseConfig]) => {
           const entries = logStore.query({
-            source: "reflex",
-            type: "run_complete",
+            source: "sense",
+            type: "signal",
             refId: name,
           });
           const lastEntry = entries.length > 0 ? entries[entries.length - 1] : null;

packages/daemon/src/log-store.ts

@@ -9,8 +9,7 @@
 
 import { mkdirSync, writeFileSync } from "node:fs";
 import { dirname, join } from "node:path";
-import Database from "better-sqlite3";
-import type BetterSqlite3 from "better-sqlite3";
+import { DatabaseSync, type StatementSync } from "node:sqlite";
 
 import {
   DEFAULT_LOG_RETENTION_MS,
@@ -84,6 +83,25 @@ export type WorkflowRun = {
   ts: number;
 };
 
+/** One role-produced command-event row with 1-based round index (ROW_NUMBER over role events only). */
+export type ThreadRoundRow = {
+  round: number;
+  logId: number;
+  ts: number;
+  event: { type: string; [key: string]: unknown };
+};
+
+/** Parameters for {@link LogStore.getThreadRounds}. */
+export type GetThreadRoundsParams = {
+  /**
+   * Exclusive upper bound on round index (1-based among role events).
+   * Use `0` to include all rounds (subject to `limit`).
+   */
+  before: number;
+  /** Maximum rows returned from the DB (DESC by round). */
+  limit: number;
+};
+
 export type LogStore = {
   append: (entry: Omit<LogEntry, "id">) => LogEntry;
   query: (filter?: LogQuery) => LogEntry[];
@@ -121,6 +139,17 @@ export type LogStore = {
    * Used for crash recovery to rebuild ThreadState.
    */
   getThreadEvents: (runId: string) => Array<{ type: string; [key: string]: unknown }>;
+  /**
+   * Count role command events for a run (excludes `thread_start` and invalid payloads).
+   * Round indices for {@link getThreadRounds} are 1..count in chronological order.
+   */
+  getThreadRoundCount: (runId: string) => number;
+  /**
+   * Role rounds for agent-oriented retrieval: each row is one `thread_command_event`
+   * whose JSON `type` is not `thread_start`, with `round` from ROW_NUMBER() OVER (ORDER BY id ASC).
+   * No schema migration — numbering is computed in SQL.
+   */
+  getThreadRounds: (runId: string, params: GetThreadRoundsParams) => ThreadRoundRow[];
   /**
    * Export logs older than the retention window to `data/archive/logs/YYYY-MM-DD.jsonl`,
    * then delete those rows and advance `meta.archived_up_to` in one transaction per day
@@ -184,7 +213,23 @@ function buildJsonlBody(rows: SqlLogRow[]): string {
   return `${lines.join("\n")}\n`;
 }
 
-function runOptionalVacuum(sqlite: BetterSqlite3.Database, vacuum?: boolean): boolean {
+function runInTransaction<T>(db: DatabaseSync, fn: () => T): T {
+  db.exec("BEGIN IMMEDIATE");
+  try {
+    const out = fn();
+    db.exec("COMMIT");
+    return out;
+  } catch (e) {
+    try {
+      db.exec("ROLLBACK");
+    } catch {
+      // ignore rollback errors
+    }
+    throw e;
+  }
+}
+
+function runOptionalVacuum(sqlite: DatabaseSync, vacuum?: boolean): boolean {
   if (vacuum !== true) return false;
   sqlite.exec("VACUUM");
   return true;
@@ -199,7 +244,7 @@ function resolveArchiveStartDay(watermark: string | null, minDay: string): strin
 function runArchiveDayLoop(
   dbPath: string,
   options: ArchiveLogsOptions,
-  selectLogsForDayStmt: BetterSqlite3.Statement,
+  selectLogsForDayStmt: StatementSync,
   archiveDayTx: (day: string, start: number, endExclusive: number) => void,
   startDay: string,
   lastDay: string,
@@ -235,8 +280,8 @@ function runArchiveDayLoop(
 export function createLogStore(dbPath: string): LogStore {
   mkdirSync(dirname(dbPath), { recursive: true });
 
-  const sqlite: BetterSqlite3.Database = new Database(dbPath);
-  sqlite.pragma("journal_mode = WAL");
+  const sqlite = new DatabaseSync(dbPath);
+  sqlite.exec("PRAGMA journal_mode=WAL");
   sqlite.exec(SCHEMA_SQL);
 
   const insertStmt = sqlite.prepare(
@@ -264,6 +309,28 @@ export function createLogStore(dbPath: string): LogStore {
     "SELECT payload FROM logs WHERE source = 'workflow' AND type = 'thread_command_event' AND ref_id = ? ORDER BY id ASC",
   );
 
+  const getThreadRoundCountStmt = sqlite.prepare(
+    `SELECT COUNT(*) AS c FROM logs
+     WHERE source = 'workflow' AND type = 'thread_command_event' AND ref_id = ?
+       AND payload IS NOT NULL AND json_valid(payload) = 1
+       AND COALESCE(json_extract(payload, '$.type'), '') != 'thread_start'`,
+  );
+
+  const getThreadRoundsStmt = sqlite.prepare(
+    `WITH numbered AS (
+       SELECT id, ts, payload,
+         ROW_NUMBER() OVER (ORDER BY id ASC) AS rn
+       FROM logs
+       WHERE source = 'workflow' AND type = 'thread_command_event' AND ref_id = @runId
+         AND payload IS NOT NULL AND json_valid(payload) = 1
+         AND COALESCE(json_extract(payload, '$.type'), '') != 'thread_start'
+     )
+     SELECT id, ts, payload, rn FROM numbered
+     WHERE (@before = 0 OR rn < @before)
+     ORDER BY rn DESC
+     LIMIT @lim`,
+  );
+
   const getActiveWorkflowRunsStmt = sqlite.prepare(
     "SELECT run_id, workflow, status, ts FROM workflow_runs WHERE status IN ('queued', 'started') ORDER BY ts ASC",
   );
@@ -288,8 +355,8 @@ export function createLogStore(dbPath: string): LogStore {
     "DELETE FROM logs WHERE ts >= @start AND ts < @endExclusive",
   );
 
-  const upsertWorkflowRunTx = sqlite.transaction(
-    (entry: Omit<LogEntry, "id">, run: WorkflowRun) => {
+  function upsertWorkflowRunTx(entry: Omit<LogEntry, "id">, run: WorkflowRun): LogEntry {
+    return runInTransaction(sqlite, () => {
       const info = insertStmt.run({
         source: entry.source,
         type: entry.type,
@@ -304,8 +371,8 @@ export function createLogStore(dbPath: string): LogStore {
         ts: run.ts,
       });
       return { ...entry, id: Number(info.lastInsertRowid) };
-    },
-  );
+    });
+  }
 
   function append(entry: Omit<LogEntry, "id">): LogEntry {
     const info = insertStmt.run({
@@ -320,7 +387,7 @@ export function createLogStore(dbPath: string): LogStore {
 
   function query(filter: LogQuery = {}): LogEntry[] {
     const conditions: string[] = [];
-    const params: Record<string, unknown> = {};
+    const params: Record<string, string | number> = {};
 
     if (filter.source !== undefined) {
       conditions.push("source = @source");
@@ -376,11 +443,11 @@ export function createLogStore(dbPath: string): LogStore {
   }
 
   function upsertWorkflowRun(entry: Omit<LogEntry, "id">, run: WorkflowRun): LogEntry {
-    return upsertWorkflowRunTx(entry, run) as LogEntry;
+    return upsertWorkflowRunTx(entry, run);
   }
 
   function appendWithWorkflowUpdate(entry: Omit<LogEntry, "id">, run: WorkflowRun): LogEntry {
-    return upsertWorkflowRunTx(entry, run) as LogEntry;
+    return upsertWorkflowRunTx(entry, run);
   }
 
   function getWorkflowRun(runId: string): WorkflowRun | null {
@@ -460,10 +527,54 @@ export function createLogStore(dbPath: string): LogStore {
     return result;
   }
 
-  const archiveDayTx = sqlite.transaction((day: string, start: number, endExclusive: number) => {
-    deleteLogsForDayStmt.run({ start, endExclusive });
-    setMetaStmt.run({ key: LOG_ARCHIVE_META_KEY, value: day });
-  });
+  function getThreadRoundCount(runId: string): number {
+    const row = getThreadRoundCountStmt.get(runId) as { c: number } | undefined;
+    const c = row?.c;
+    if (c === null || c === undefined) return 0;
+    return Number(c);
+  }
+
+  function getThreadRounds(runId: string, params: GetThreadRoundsParams): ThreadRoundRow[] {
+    const before = params.before;
+    const lim = params.limit;
+    if (lim < 1) return [];
+
+    const rows = getThreadRoundsStmt.all({
+      runId,
+      before,
+      lim,
+    }) as Array<{ id: number; ts: number; payload: string | null; rn: number }>;
+
+    const out: ThreadRoundRow[] = [];
+    for (const row of rows) {
+      if (row.payload === null) continue;
+      try {
+        const parsed = JSON.parse(row.payload) as unknown;
+        if (
+          parsed !== null &&
+          typeof parsed === "object" &&
+          typeof (parsed as Record<string, unknown>).type === "string"
+        ) {
+          out.push({
+            round: row.rn,
+            logId: row.id,
+            ts: row.ts,
+            event: parsed as { type: string; [key: string]: unknown },
+          });
+        }
+      } catch {
+        // skip malformed payloads
+      }
+    }
+    return out;
+  }
+
+  function archiveDayTx(day: string, start: number, endExclusive: number): void {
+    runInTransaction(sqlite, () => {
+      deleteLogsForDayStmt.run({ start, endExclusive });
+      setMetaStmt.run({ key: LOG_ARCHIVE_META_KEY, value: day });
+    });
+  }
 
   function readWatermark(): string | null {
     const raw = getMeta(LOG_ARCHIVE_META_KEY);
@@ -522,6 +633,8 @@ export function createLogStore(dbPath: string): LogStore {
     getAllWorkflowRuns,
     getTriggerPayload,
     getThreadEvents,
+    getThreadRoundCount,
+    getThreadRounds,
     archiveLogs,
     close,
   };

packages/daemon/src/sense-runtime.ts

@@ -1,9 +1,9 @@
 import { mkdirSync, readFileSync, readdirSync } from "node:fs";
 import { dirname, join } from "node:path";
+import { DatabaseSync } from "node:sqlite";
 
-import Database from "better-sqlite3";
-import { drizzle } from "drizzle-orm/better-sqlite3";
-import type { BetterSQLite3Database } from "drizzle-orm/better-sqlite3";
+import { drizzle } from "drizzle-orm/node-sqlite";
+import type { NodeSQLiteDatabase } from "drizzle-orm/node-sqlite";
 
 import type { Result } from "@uncaged/nerve-core";
 import { err, ok } from "@uncaged/nerve-core";
@@ -11,7 +11,7 @@ import { err, ok } from "@uncaged/nerve-core";
 import type { BlobStore } from "./blob-store.js";
 
 /** A Drizzle DB instance (schema-generic) */
-export type DrizzleDB = BetterSQLite3Database<Record<string, never>>;
+export type DrizzleDB = NodeSQLiteDatabase<Record<string, never>>;
 
 /** Read-only map of peer sense name → their Drizzle DB */
 export type PeerMap = Readonly<Record<string, DrizzleDB>>;
@@ -42,7 +42,7 @@ export type SenseRuntime = {
   compute: ComputeFn;
 };
 
-function ensureMigrationsTable(sqlite: Database.Database): Result<void> {
+function ensureMigrationsTable(sqlite: DatabaseSync): Result<void> {
   try {
     sqlite.exec(
       `CREATE TABLE IF NOT EXISTS _migrations (
@@ -69,11 +69,7 @@ function listMigrationFiles(migrationsDir: string): Result<string[]> {
   }
 }
 
-function applyMigrationFile(
-  sqlite: Database.Database,
-  file: string,
-  filePath: string,
-): Result<void> {
+function applyMigrationFile(sqlite: DatabaseSync, file: string, filePath: string): Result<void> {
   let sql: string;
   try {
     sql = readFileSync(filePath, "utf8");
@@ -83,13 +79,18 @@ function applyMigrationFile(
   }
 
   const insertJournal = sqlite.prepare("INSERT INTO _migrations (name, applied_at) VALUES (?, ?)");
+  sqlite.exec("BEGIN IMMEDIATE");
   try {
-    sqlite.transaction(() => {
-      sqlite.exec(sql);
-      insertJournal.run(file, Date.now());
-    })();
+    sqlite.exec(sql);
+    insertJournal.run(file, Date.now());
+    sqlite.exec("COMMIT");
     return ok(undefined);
   } catch (e) {
+    try {
+      sqlite.exec("ROLLBACK");
+    } catch {
+      // ignore secondary errors during rollback
+    }
     const msg = e instanceof Error ? e.message : String(e);
     return err(new Error(`Migration "${file}" failed: ${msg}`));
   }
@@ -97,10 +98,10 @@ function applyMigrationFile(
 
 /**
  * Run all *.sql migration files in the given directory against a
- * better-sqlite3 Database, in lexicographic order.
+ * `node:sqlite` DatabaseSync, in lexicographic order.
  * Tracks applied migrations in _migrations table to avoid re-running.
  */
-export function runMigrations(sqlite: Database.Database, migrationsDir: string): Result<void> {
+export function runMigrations(sqlite: DatabaseSync, migrationsDir: string): Result<void> {
   const tableResult = ensureMigrationsTable(sqlite);
   if (!tableResult.ok) return tableResult;
 
@@ -129,14 +130,13 @@ export function runMigrations(sqlite: Database.Database, migrationsDir: string):
 export function openSenseDb(
   dbPath: string,
   migrationsDir: string,
-): Result<{ sqlite: Database.Database; db: DrizzleDB }> {
-  let sqlite: Database.Database;
+): Result<{ sqlite: DatabaseSync; db: DrizzleDB }> {
+  let sqlite: DatabaseSync;
 
   try {
     mkdirSync(dirname(dbPath), { recursive: true });
-    sqlite = new Database(dbPath);
-    // WAL mode for better concurrent read performance
-    sqlite.pragma("journal_mode = WAL");
+    sqlite = new DatabaseSync(dbPath);
+    sqlite.exec("PRAGMA journal_mode=WAL");
   } catch (e) {
     const msg = e instanceof Error ? e.message : String(e);
     return err(new Error(`Failed to open database "${dbPath}": ${msg}`));
@@ -145,7 +145,7 @@ export function openSenseDb(
   const migResult = runMigrations(sqlite, migrationsDir);
   if (!migResult.ok) return migResult;
 
-  const db = drizzle(sqlite) as DrizzleDB;
+  const db = drizzle({ client: sqlite }) as DrizzleDB;
   return ok({ sqlite, db });
 }
 
@@ -153,16 +153,16 @@ export function openSenseDb(
  * Open a peer sense DB in read-only mode (no migrations).
  */
 export function openPeerDb(dbPath: string): Result<DrizzleDB> {
-  let sqlite: Database.Database;
+  let sqlite: DatabaseSync;
 
   try {
-    sqlite = new Database(dbPath, { readonly: true });
+    sqlite = new DatabaseSync(dbPath, { readOnly: true });
   } catch (e) {
     const msg = e instanceof Error ? e.message : String(e);
     return err(new Error(`Failed to open peer database "${dbPath}" (readonly): ${msg}`));
   }
 
-  return ok(drizzle(sqlite) as DrizzleDB);
+  return ok(drizzle({ client: sqlite }) as DrizzleDB);
 }
 
 /**
@@ -173,6 +173,7 @@ export async function loadComputeFn(senseIndexPath: string): Promise<Result<Comp
   let mod: unknown;
 
   try {
+    // Dynamic import required: user-authored sense module, path resolved at runtime
     mod = await import(senseIndexPath);
   } catch (e) {
     const msg = e instanceof Error ? e.message : String(e);

packages/daemon/src/sense-worker.ts

@@ -25,6 +25,7 @@ import type { WorkerToParentMessage } from "./ipc.js";
 import { parseParentMessage } from "./ipc.js";
 import { executeCompute, loadComputeFn, openPeerDb, openSenseDb } from "./sense-runtime.js";
 import type { DrizzleDB, PeerMap, SenseRuntime } from "./sense-runtime.js";
+import { ignoreSessionBroadcastSignals } from "./worker-fork-support.js";
 
 // ---------------------------------------------------------------------------
 // IPC helpers
@@ -336,6 +337,10 @@ if (!parsed) {
   process.exit(1);
 }
 
+if (typeof process.send === "function") {
+  ignoreSessionBroadcastSignals();
+}
+
 bootstrap(parsed.nerveRoot, parsed.group).catch((e) => {
   const msg = e instanceof Error ? e.message : String(e);
   process.stderr.write(`[sense-worker] Unhandled bootstrap error: ${msg}\n`);

packages/daemon/src/worker-fork-support.ts

@@ -0,0 +1,48 @@
+import type { ChildProcess } from "node:child_process";
+
+const STDERR_TAIL_MAX_CHARS = 16_384;
+
+/**
+ * Forked workers inherit the parent's process group. In foreground `nerve dev`,
+ * terminal-driven SIGINT/SIGTERM is delivered to the whole group, so workers can exit
+ * on the default handler before the kernel sends `{ type: "shutdown" }` over IPC.
+ * Swallow these in worker processes so the parent coordinates shutdown (issue #55).
+ * Only call when `process.send` is defined (fork IPC); standalone `node …-worker.js` keeps default Ctrl+C behaviour.
+ */
+export function ignoreSessionBroadcastSignals(): void {
+  const swallow = (): void => {};
+  process.on("SIGINT", swallow);
+  process.on("SIGTERM", swallow);
+}
+
+export function teeCapturedStderr(child: ChildProcess, tail: { value: string }): void {
+  const stream = child.stderr;
+  if (stream === null || stream === undefined) return;
+  stream.setEncoding("utf8");
+  stream.on("data", (chunk: string | Buffer) => {
+    const text = typeof chunk === "string" ? chunk : chunk.toString("utf8");
+    process.stderr.write(text);
+    tail.value = (tail.value + text).slice(-STDERR_TAIL_MAX_CHARS);
+  });
+}
+
+export function formatChildExitSummary(
+  code: number | null,
+  signal: NodeJS.Signals | null,
+): string {
+  const codeStr = code === null || code === undefined ? "null" : String(code);
+  if (signal) {
+    return `code=${codeStr} signal=${signal}`;
+  }
+  return `code=${codeStr}`;
+}
+
+export function formatCapturedStderrTail(tail: string, maxChars = 800): string {
+  const trimmed = tail.trim();
+  if (trimmed.length === 0) return "";
+  const normalized = trimmed.replace(/\r?\n/g, "\\n");
+  if (normalized.length <= maxChars) {
+    return ` worker_stderr=${normalized}`;
+  }
+  return ` worker_stderr=…${normalized.slice(-maxChars)}`;
+}

packages/daemon/src/workflow-manager.ts

@@ -22,6 +22,11 @@ import type {
 import { parseWorkerMessage } from "./ipc.js";
 import type { LogStore } from "./log-store.js";
 import type { WorkflowRunStatus } from "./log-store.js";
+import {
+  formatCapturedStderrTail,
+  formatChildExitSummary,
+  teeCapturedStderr,
+} from "./worker-fork-support.js";
 
 export type WorkflowManager = {
   /** Trigger a new workflow thread (called by Reflex scheduler). */
@@ -60,6 +65,7 @@ type WorkerEntry = {
   stopping: boolean;
   /** When set, the worker is draining before a hot-reload respawn. */
   draining: boolean;
+  stderrTail: { value: string };
 };
 
 // Crash respawn backoff: track crash timestamps per workflow.
@@ -85,12 +91,18 @@ function spawnWorkflowWorker(
   nerveRoot: string,
   workflowName: string,
   workerScript: string,
+  stderrTail: { value: string },
 ): ChildProcess {
   const child = fork(workerScript, ["--workflow", workflowName, "--root", nerveRoot], {
-    stdio: ["ignore", "inherit", "inherit", "ipc"],
+    stdio: ["ignore", "inherit", "pipe", "ipc"],
   });
+  teeCapturedStderr(child, stderrTail);
   // Prevent unhandled EPIPE when writing to a child whose IPC channel closed
-  child.on("error", () => {});
+  child.on("error", (err) => {
+    if ((err as NodeJS.ErrnoException).code !== "EPIPE") {
+      console.error("[worker] error:", err.message);
+    }
+  });
   return child;
 }
 
@@ -391,7 +403,11 @@ export function createWorkflowManager(
     state.active.clear();
   }
 
-  function handleWorkerExit(workflowName: string, code: number | null): void {
+  function handleWorkerExit(
+    workflowName: string,
+    code: number | null,
+    signal: NodeJS.Signals | null,
+  ): void {
     const entry = workers.get(workflowName);
     if (entry?.draining) {
       workers.delete(workflowName);
@@ -412,8 +428,10 @@ export function createWorkflowManager(
       }
       return;
     }
+    const summary = formatChildExitSummary(code, signal);
+    const stderrExtra = entry !== undefined ? formatCapturedStderrTail(entry.stderrTail.value) : "";
     process.stderr.write(
-      `[workflow-manager] worker for "${workflowName}" exited with code ${code ?? "null"}\n`,
+      `[workflow-manager] worker for "${workflowName}" exited (${summary})${stderrExtra}\n`,
     );
     handleWorkerCrash(workflowName);
   }
@@ -424,17 +442,24 @@ export function createWorkflowManager(
       return existing;
     }
 
-    const child = spawnWorkflowWorker(nerveRoot, workflowName, workerScript);
+    const stderrTail = { value: "" };
+    const child = spawnWorkflowWorker(nerveRoot, workflowName, workerScript, stderrTail);
 
     child.on("message", (raw: unknown) => {
       handleWorkerMessage(workflowName, raw);
     });
 
-    child.on("exit", (code) => {
-      handleWorkerExit(workflowName, code);
+    child.on("exit", (code, signal) => {
+      handleWorkerExit(workflowName, code, signal ?? null);
     });
 
-    const entry: WorkerEntry = { workflowName, process: child, stopping: false, draining: false };
+    const entry: WorkerEntry = {
+      workflowName,
+      process: child,
+      stopping: false,
+      draining: false,
+      stderrTail,
+    };
     workers.set(workflowName, entry);
     return entry;
   }

packages/daemon/src/workflow-worker.ts

@@ -21,6 +21,7 @@ import type {
 
 import type { ThreadCommandEventMessage, ThreadEventType, WorkerToParentMessage } from "./ipc.js";
 import { parseParentMessage } from "./ipc.js";
+import { ignoreSessionBroadcastSignals } from "./worker-fork-support.js";
 
 // ---------------------------------------------------------------------------
 // IPC helpers
@@ -119,8 +120,7 @@ async function runThread(
 
   const initialEvent: CommandEvent = {
     type: "thread_start",
-    triggerPayload:
-      triggerPayload != null && typeof triggerPayload === "object" ? triggerPayload : {},
+    triggerPayload: triggerPayload ?? {},
   };
 
   // On resume: replay persisted events, run the next un-executed role, then continue.
@@ -197,6 +197,7 @@ async function loadWorkflowDefinition(
     );
   }
 
+  // Dynamic import required: user-authored workflow module, path resolved at runtime
   const mod = await import(indexPath);
   const def: unknown = mod.default ?? mod;
 
@@ -334,6 +335,10 @@ if (!parsed) {
   process.exit(1);
 }
 
+if (typeof process.send === "function") {
+  ignoreSessionBroadcastSignals();
+}
+
 bootstrap(parsed.nerveRoot, parsed.workflow).catch((e) => {
   const msg = e instanceof Error ? e.message : String(e);
   process.stderr.write(`[workflow-worker] Unhandled bootstrap error: ${msg}\n`);

packages/daemon/tsup.config.ts

@@ -1,8 +0,0 @@
-import { defineConfig } from "tsup";
-
-export default defineConfig({
-  entry: ["src/index.ts", "src/sense-worker.ts"],
-  format: ["esm"],
-  dts: true,
-  clean: true,
-});

pnpm-workspace.yaml

@@ -3,5 +3,4 @@ packages:
 
 onlyBuiltDependencies:
   - "@biomejs/biome"
-  - better-sqlite3
   - esbuild

scripts/prepublish-check.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+# All packages must use pnpm publish. Block npm publish unconditionally.
+
+if [ -z "$npm_execpath" ] || [[ "$npm_execpath" != *pnpm* ]]; then
+  echo "❌ Use 'pnpm publish' instead of 'npm publish'."
+  echo "   pnpm auto-converts workspace:* dependencies to real versions."
+  exit 1
+fi