Files
united-workforce/packages/cli-workflow
xiaoju 521d908719 feat(cli): add background thread execution and running threads query
This commit implements issue #456, adding two related capabilities to the uwf CLI:

1. **Background execution mode** for `uwf thread step` (via `--background` flag)
   - Spawns agent execution in a detached background process
   - Returns immediately with thread ID and background status
   - Maintains marker files to track running processes
   - Supports `--count` option to run multiple steps in background
   - Prevents concurrent execution of the same thread

2. **Running threads query** command (`uwf thread running`)
   - Lists all threads currently executing in background
   - Returns thread ID, workflow, current role, PID, and start time
   - Automatically filters out stale markers (dead processes)
   - Empty list when no threads are running

**Key changes:**

- **workflow-protocol**: Added `RunningThreadItem`, `RunningThreadsOutput` types
  Updated `StepOutput` to include `background: boolean | null` field

- **cli-workflow/background**: New module for process management
  - Marker file creation/deletion (atomic operations)
  - PID liveness checking
  - Stale marker cleanup
  - Running threads query

- **cli-workflow/commands/thread**:
  - Updated `cmdThreadStep` to support `--background` and `--_background-worker` flags
  - Added `cmdThreadStepBackground` for spawning detached processes
  - Added `cmdThreadRunning` to list running threads
  - Updated `cmdThreadKill` to terminate background processes

- **cli-workflow/cli**: Added CLI routing for new commands and flags

**Integration:**
- `uwf thread kill` now terminates background processes before archiving
- Foreground execution checks for existing background process and fails if found
- Background worker creates/cleans up marker files automatically
- Marker files stored in `~/.uncaged/workflow/running/*.json`

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-05-24 05:28:29 +00:00
..

@uncaged/cli-workflow

uwf CLI — thread lifecycle, workflow registry, CAS inspection, and setup.

Overview

Layer 4 entry point for the workflow engine. The uwf binary orchestrates one step per invocation: load thread head from threads.yaml, run the moderator, spawn the configured agent CLI, run extract, append a CAS step node, and update the head pointer (or archive when $END).

This package has no library src/index.ts — it is consumed as a CLI binary only.

Dependencies: @uncaged/json-cas, @uncaged/json-cas-fs, @uncaged/workflow-agent-kit, @uncaged/workflow-moderator, @uncaged/workflow-protocol, @uncaged/workflow-util, commander, dotenv, yaml

Installation

Included as the uwf binary when you install @uncaged/cli-workflow:

bun add -g @uncaged/cli-workflow
# or from the monorepo:
bun link packages/cli-workflow

CLI Usage

Global options

-V, --version          Show version
--format <json|yaml>   Output format (default: json)
-h, --help             Show help

Thread

Command Description
uwf thread start <workflow> -p <prompt> Create a thread without executing
uwf thread step <thread-id> [--agent <cmd>] [-c <count>] Execute one or more moderator→agent→extract cycles
uwf thread show <thread-id> Show thread head pointer
uwf thread list [--all] List active threads (--all includes archived)
uwf thread steps <thread-id> List all steps chronologically
uwf thread read <thread-id> [--quota N] [--before <hash>] [--start] Render thread as readable markdown
uwf thread fork <step-hash> Fork from a specific step
uwf thread step-details <step-hash> Dump full detail node as YAML
uwf thread kill <thread-id> Terminate and archive

Examples:

uwf thread start solve-issue -p "Fix the login redirect bug"
uwf thread step 01ARZ3NDEKTSV4RRFFQ69G5FAV
uwf thread step 01ARZ3NDEKTSV4RRFFQ69G5FAV -c 3 --agent uwf-builtin
uwf thread read 01ARZ3NDEKTSV4RRFFQ69G5FAV --quota 8000

Workflow

Command Description
uwf workflow put <file.yaml> Register a workflow from YAML
uwf workflow show <name-or-hash> Show workflow definition
uwf workflow list List registered workflows

CAS

Command Description
uwf cas get <hash> [--timestamp] Read a CAS node
uwf cas put <type-hash> <data> Store a node, print hash
uwf cas put-text <text> Store plain text, print hash
uwf cas has <hash> Check existence
uwf cas refs <hash> List direct references
uwf cas walk <hash> Recursive traversal
uwf cas reindex Rebuild type index
uwf cas schema list List registered schemas
uwf cas schema get <hash> Show a schema

Setup

uwf setup
uwf setup --provider openai --base-url https://api.openai.com/v1 \
  --api-key sk-... --model gpt-4o --agent hermes

Config: ~/.uncaged/workflow/config.yaml. API keys: ~/.uncaged/workflow/.env.

Skill

Command Description
uwf skill cli Print markdown reference of all uwf commands (for agent skills)

Log

Command Description
uwf log list List log files with sizes
uwf log show [--thread <id>] [--process <pid>] [--date YYYY-MM-DD] Show filtered log entries
uwf log clean [--before YYYY-MM-DD] Delete old log files

Internal Structure

src/
├── cli.ts              Commander entrypoint, command registration
├── format.ts           JSON/YAML output formatting
├── store.ts            CAS store + registry initialization
├── validate.ts         Workflow YAML validation
├── schemas.ts          CLI-local schema registration
└── commands/
    ├── thread.ts       Thread lifecycle and step execution
    ├── workflow.ts     Workflow registry (put/show/list)
    ├── cas.ts          CAS inspection and schema ops
    ├── setup.ts        Interactive/non-interactive setup
    ├── skill.ts        Built-in skill references
    └── log.ts          Process debug log management

Configuration

File Purpose
~/.uncaged/workflow/config.yaml Providers, models, default agent
~/.uncaged/workflow/.env API keys (referenced by apiKeyEnv in config)
~/.uncaged/workflow/registry.yaml Workflow name → CAS hash
~/.uncaged/workflow/threads.yaml Active thread head pointers
~/.uncaged/workflow/cas/ Content-addressed node storage