Agent-Skills.md

Agent Skills: Running Workflows

Launches workflow engine runs in the background, monitors progress via session files, and reports status. Use when running spec-implementation workflows or any workflow engine invocation.

UncategorizedID: samjhecht/wrangler/running-workflows

Repository

samjhecht/wrangler
bacchus-labsLicense: MIT
31

Install this agent skill to your local

pnpm dlx add-skill https://github.com/bacchus-labs/wrangler/tree/HEAD/skills/running-workflows

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skills/running-workflows/SKILL.md

Skill Metadata

Name
running-workflows
Description
Launches workflow engine runs in the background, monitors progress via session files, and reports status. Use when running spec-implementation workflows or any workflow engine invocation.

Running Workflows

Purpose

Standardized way to launch the workflow engine CLI, background it, and monitor progress. Keeps the main conversation available while workflows run.

When to Use

  • User asks to "run a workflow", "implement a spec", or "execute spec-implementation"
  • You need to invoke the workflow engine CLI (wrangler-workflow)
  • Monitoring a running or paused workflow

When NOT to Use

  • Implementing a single issue (use implementing-issue)
  • Writing plans without execution (use writing-plans)

1. Launching a Workflow

Resolve the CLI

The engine CLI lives relative to the wrangler plugin root:

# From the project root (dev checkout):
node workflows/engine/dist/cli.js

# Or via the bin wrapper:
bin/wrangler-workflow

If the engine is not built, build it first:

cd workflows/engine && npm run build

Run Command

node workflows/engine/dist/cli.js run <spec-file> [options]

Options:

  • --dry-run -- Analyze and plan only, do not execute or publish
  • --resume <session-id> -- Resume a paused workflow from its last checkpoint

Examples:

# Full run
node workflows/engine/dist/cli.js run .wrangler/specifications/SPEC-000049-feature.md

# Dry run (plan only)
node workflows/engine/dist/cli.js run .wrangler/specifications/SPEC-000049-feature.md --dry-run

# Resume paused workflow
node workflows/engine/dist/cli.js run .wrangler/specifications/SPEC-000049-feature.md --resume wf-2026-02-16-ba6fcb97

MUST Background by Default

Always launch workflows in the background using the Bash tool's run_in_background parameter. Workflows take 5-30 minutes. Do NOT block the conversation.

Bash(command: "node workflows/engine/dist/cli.js run <spec-file>", run_in_background: true, timeout: 600000)

After launching, immediately tell the user:

  • The workflow is running in the background
  • The session ID (from initial output or context.json)
  • How to check status: "Ask me anytime for a progress update"

2. Checking Progress

MCP Tool (Preferred)

Use the session_status MCP tool for a structured status report:

session_status({ sessionId: "wf-2026-02-16-ba6fcb97" })

If you omit sessionId, it auto-detects the most recent wf-* session:

session_status({})

The tool returns structured metadata including:

  • status: running/paused/completed/failed
  • activeStep: Current step derived from audit log (reliable, not stale context.json)
  • phasesCompleted: Phases finished (derived from audit log)
  • tasksCompleted / tasksPending / totalTasks: Task progress
  • duration: Human-readable elapsed time
  • specFile, worktreePath, branchName: Session context
  • blocker: Details if the workflow is paused
  • checkpoint: Resume state if available
  • lastActivity: What happened most recently
  • auditEntryCount: Total audit entries

Bash Helper Script (Alternative)

For terminal use outside of Claude Code, a helper script is available:

bin/check-workflow-status <session-id>
bin/check-workflow-status              # auto-detects most recent wf-* session

This outputs a formatted summary including process PID and CPU/memory usage.

Manual Status Check

If neither tool is available, check session files directly:

Session directory: .wrangler/sessions/<session-id>/

audit.jsonl -- Activity Log (Source of Truth)

The audit log is the most reliable source of current workflow state. Each line is a JSON object recording a step transition:

{"step":"analyze","status":"started","timestamp":"2026-02-16T21:58:15.127Z"}
{"step":"analyze","status":"completed","timestamp":"2026-02-16T21:59:28.160Z","metadata":{...}}
{"step":"implement","status":"started","timestamp":"2026-02-16T22:03:48.990Z"}

Steps you will see: init, analyze, plan, execute, implement (per-task), review (per-task), fix-issues (if review found problems), verify, publish.

context.json -- Overall State

Contains status, tasksCompleted, tasksPending, specFile, worktreePath, branchName. Note: currentPhase and phasesCompleted may be stale -- derive these from audit.jsonl instead.

checkpoint.json / blocker.json

Present when the workflow paused. Checkpoint contains resume state; blocker contains the reason for pausing.

Interpreting Progress

| Status | Meaning | Action | |---------------------|---------|--------| | running | Workflow is actively executing | Wait, check audit log for current step | | paused | Hit a blocker or loop exhaustion | Read blocker, consider --resume | | completed | All phases finished successfully | Check worktree for PR | | failed | Unrecoverable error | Read audit log for error details |

Reporting to User

When the user asks for a progress update, call session_status({}) and report:

  1. Status: running/paused/completed/failed
  2. Active step: What's happening right now
  3. Progress: X of Y tasks completed (if in execute phase)
  4. Last activity: Most recent audit entry
  5. Duration: How long it has been running

Example report:

Workflow wf-2026-02-16-ba6fcb97 is running.

Phase: execute (analyze -> plan -> [execute] -> verify -> publish)
Progress: 3/8 tasks completed
Last activity: Implementing task-004 (started 2m ago)
Running for: 12 minutes

The workflow is working in an isolated worktree at .worktrees/feature-name/.

3. Handling Completion

When the workflow finishes (check via TaskOutput or periodic polling):

If completed:

  • Report success to user
  • Show the branch name and worktree path
  • Note if a PR was created
  • Suggest reviewing the changes

If paused:

  • Read blocker.json for the reason
  • Report to user with context
  • Offer to resume: --resume <session-id>

If failed:

  • Read the last audit entries for error context
  • Report the failure to user
  • Suggest debugging steps

4. Resuming Paused Workflows

node workflows/engine/dist/cli.js run <spec-file> --resume <session-id>

The engine picks up from the last checkpoint, skipping completed phases and tasks.

Workflow Phases Reference

The spec-implementation workflow runs these phases in order:

  1. analyze -- Reads the spec, produces structured task breakdown
  2. plan -- Creates MCP issues from the analysis
  3. execute -- Implements each task (per-task loop with implement -> review -> fix cycle)
  4. verify -- Runs full test suite, checks all requirements met
  5. publish -- Creates GitHub PR from the completed work

Each phase produces audit entries and updates context.json.