docs: add comprehensive README for root and all packages

Replace tsup (esbuild-based) with rslib (rspack-based) across all packages.

tsup's built-in nodeProtocolPlugin strips the 'node:' prefix from all
Node.js builtins. Unlike node:fs etc., node:sqlite has no unprefixed
form, causing ERR_MODULE_NOT_FOUND at runtime. rslib handles node:
imports correctly without any workarounds.

Changes:
- Replace tsup.config.ts with rslib.config.ts in core, daemon, cli
- Swap tsup → @rslib/core in devDependencies
- Fix log-store.ts params type (Record<string, unknown> → Record<string, string | number>)
- Fix logStream.fd type cast in start.ts
- Exclude __tests__ from CLI tsconfig to avoid DTS errors
- All 356 tests pass, nerve init works correctly

Closes #70

小橘 🍊（NEKO Team）

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

package.json

@@ -11,7 +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

@@ -18,7 +18,7 @@
   },
   "scripts": {
     "prepublishOnly": "bash ../../scripts/prepublish-check.sh",
-    "build": "tsup",
+    "build": "rslib build",
     "test": "vitest run"
   },
   "dependencies": {
@@ -26,6 +26,7 @@
     "citty": "^0.1.6"
   },
   "devDependencies": {
+    "@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/commands/start.ts

@@ -76,7 +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,
   });

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

@@ -3,20 +3,23 @@
   "version": "0.1.4",
   "type": "module",
   "main": "dist/index.js",
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "publishConfig": {
     "access": "public"
   },
   "types": "dist/index.d.ts",
   "scripts": {
     "prepublishOnly": "bash ../../scripts/prepublish-check.sh",
-    "build": "tsup",
+    "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/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

@@ -12,7 +12,7 @@
   },
   "scripts": {
     "prepublishOnly": "bash ../../scripts/prepublish-check.sh",
-    "build": "tsup",
+    "build": "rslib build",
     "test": "vitest run"
   },
   "dependencies": {
@@ -21,6 +21,7 @@
     "yaml": "^2.8.3"
   },
   "devDependencies": {
+    "@rslib/core": "^0.21.3",
     "@types/node": "^22.0.0",
     "vitest": "^4.1.5"
   }

packages/daemon/rslib.config.ts

@@ -0,0 +1,20 @@
+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",
+    },
+  },
+  output: {
+    target: "node",
+    cleanDistPath: true,
+  },
+});

packages/daemon/src/log-store.ts

@@ -335,7 +335,7 @@ 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");

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,
-});