| name | pr-jangler |
| description | PR Jangler hub. Cron-driven autonomous workflow for triaging, verifying, reviewing, fix-planning, adversarially validating, fix-implementing, deciding, and daily-reporting on a GitHub PR backlog. Use when the user mentions "PR jangler", "pr-jangler", "PR backlog workflow", "PR triage", "autonomous PR review", "fix-plan", "fix-PR", "adversarial validator", "PleaseAdvise", or wants to install, configure, or extend the PR Jangler BMad module. Routes to 12 phase skills, owns the cross-cutting state-file conventions, idempotency rules, GitHub-label vocabulary, and 1Password/SMTP/`gh`/`op` dependency map shared by every phase. Triggers on prj-setup, prj-orchestrator, prj-discover, prj-triage, prj-verify-claim, prj-review, prj-detect-overlap, prj-plan-fix, prj-validate-adversarial, prj-implement-fix, prj-decision, prj-report-daily. |
PR Jangler
Autonomous PR backlog handler. Cron fires prj-orchestrator every N minutes; the orchestrator picks one queued action and dispatches to one phase skill. Per-PR state is durable; every transition is logged; nothing acts on a PR until a claim has been independently reproduced.
DISCOVER TRIAGE VERIFY REVIEW PLAN VALIDATE IMPLEMENT DECIDE REPORT
┌────────┐ ┌────────┐ ┌────────┐ ┌────────┐ ┌──────────┐ ┌──────────────┐ ┌──────────┐ ┌────────┐ ┌────────┐
│ GH → Q │───▶│Classify│───▶│Reproduce│──▶│ Read │───▶│Fix + │───▶│Adversarial │──▶│ New PR │──▶│ Label │───▶│ Email │
│ sync │ │ PR/cmt │ │ claim │ │ diff │ │test plan │ │6-item check │ │ to branch│ │ verdict│ │ digest │
└────────┘ └────────┘ └────────┘ └────────┘ └──────────┘ └──────────────┘ └──────────┘ └────────┘ └────────┘
prj-discover prj-triage prj-verify prj-review prj-plan-fix prj-validate- prj-implement prj-decision prj-report-
-claim adversarial -fix daily
Also dispatched on cadence: prj-detect-overlap (duplicate scoring), prj-setup (one-shot install).
Orchestrated by: prj-orchestrator (cron heartbeat).
Operating Principles
These are non-negotiable across every phase skill. Hoisted here so each child does not redefine them.
- The queue is authoritative.
{project-root}/_bmad-output/pr-workflow/state.json is the single source of truth. Phase skills NEVER read GitHub for queue facts — they read state.json. Only prj-discover writes from GitHub into the queue.
- All state I/O goes through
state_io.py. Atomic via tmp + fsync + rename. Direct file writes to state.json are forbidden — a corrupted queue blocks the whole pipeline.
- Idempotent per heartbeat. Every action survives mid-run interruption: the next heartbeat picks up cleanly without double-acting or losing the transition.
- Never silently fail. Every outcome — dispatch, stub, abort, error, no-op — emits a structured JSONL entry to
{project-root}/_bmad-output/pr-workflow/logs/{YYYY-MM-DD}.jsonl. Errors also surface on stderr.
PleaseAdvise is the escape hatch. Any phase may transition a PR to PleaseAdvise (priority 1000, outranks everything). Stays there until the user-acknowledged override label is applied.- Never push to the contributor's branch.
prj-implement-fix opens a new PR targeting the contributor's branch. Force-pushes are forbidden. Every fix is a new commit; every fix is a new PR.
- Verify before acting on any claim. A comment asserting a bug is a hypothesis, not a fact.
prj-verify-claim reproduces in an isolated worktree before prj-plan-fix is allowed to run.
- System actions outrank per-PR actions. Daily report (priority 700) and discovery sweep (priority 500) preempt the per-PR backlog (base 100).
Routing Table
When the orchestrator's next action — or a user invocation — names one of these signals, dispatch to the matching child skill.
| Signal | Skill | What it does |
|---|
| First-time module install in a project | prj-setup | Writes _bmad/config.{yaml,user.yaml}, creates GH labels, validates gh/op/SMTP, initializes the workflow tree |
| Cron heartbeat (every N minutes) | prj-orchestrator | Picks one action, dispatches one phase, persists state, logs, exits |
Queue empty, or cadence tick heartbeat_count % prj_discover_every_n == 0 | prj-discover | Syncs GH open-PR set into the queue; adds Discovered, archives closed, bumps new_comments_since_triage |
PR newly Discovered (--mode pr), or new comment on a triaged PR (--mode comment) | prj-triage | Classifies the PR/comment into one of the rubric buckets; sets next_action |
| Triage produced an actionable claim that asserts a bug | prj-verify-claim | Reproduces in an isolated worktree; verdict drives transition |
| PR triaged as needs-review (no claim, full-PR examination) | prj-review | Reads diff + changed files; emits review.md with findings |
| Triage flagged possible duplicate | prj-detect-overlap | Scores file-footprint overlap vs every open PR; LLM-compares high-overlap pairs |
| Claim verified, ready to design a fix | prj-plan-fix | Produces fix-plan.md: failing test + smallest diff + rationale + risks |
| Fix-plan written, needs adversarial gate | prj-validate-adversarial | Runs full regression suite + 6-item adversarial checklist; default verdict reject |
| Adversarial gate passed | prj-implement-fix | Opens fix-PR targeting the contributor's branch |
| Review/fix complete, ready for verdict | prj-decision | Aggregates per-PR cache, applies rubric, labels prj/decision:{class}, posts summary comment |
Common Combinations
The canonical per-PR pipeline, in order:
prj-discover → prj-triage → prj-verify-claim → prj-review → prj-plan-fix
→ prj-validate-adversarial → prj-implement-fix → prj-decision
Not every PR walks the full sequence. Triage may shortcut: a duplicate goes straight to prj-detect-overlap → prj-decision (close-as-not-now); a clean review with no claim goes prj-review → prj-decision (ready-to-merge); a verification failure goes prj-verify-claim → prj-decision (request-changes-with-pushback).
Cross-Cutting Conventions
State tree layout
Owned by prj-orchestrator. Every phase reads from and writes to it (via state_io.py).
{project-root}/_bmad-output/pr-workflow/
├── state.json # the queue
├── prs/{pr_number}/ # per-PR cache
│ ├── meta.json
│ ├── triage.md
│ ├── verification.md
│ ├── review.md
│ ├── overlap.md
│ ├── fix-plan.md
│ ├── adversarial.md
│ └── decisions.log # JSONL audit
├── logs/{YYYY-MM-DD}.jsonl # run-log
├── reports/{YYYY-MM-DD}.md # daily-report archive
└── worktrees/ # ephemeral, owned by prj-verify-claim
Configuration
Module config lives under [modules.prj] in {project-root}/_bmad/config.toml (or config.yaml per the active BMad version). Required: prj_repo. Common: prj_discover_every_n, prj_report_hour_local, prj_smtp_host, prj_smtp_port, prj_email_to, prj_bot_user. User-only keys (user_name, communication_language) live in config.user.yaml.
Path tokens
{project-root}/... is a literal token in config values. Do not substitute it. Filesystem operations resolve it at the point of use; the config itself keeps it symbolic.
Dependency map
| Tool | Used by | Failure mode |
|---|
gh (authenticated as prj_bot_user) | discover, triage, detect-overlap, review, implement-fix, decision | Rate-limit aware: defer cleanly when core quota < 100 |
op (1Password CLI, signed in) | report-daily, setup | SMTP creds resolution; setup warns but does not block |
git + worktrees | verify-claim, plan-fix, validate-adversarial, implement-fix | Worktrees are ephemeral; clean up after each verification |
| Project test runner (auto-detected) | verify-claim, validate-adversarial | Required for the adversarial gate to pass |
| SMTP (configured host/port + STARTTLS) | report-daily, setup test | Daily digest delivery |
Label vocabulary
Pre-created on prj_repo by prj-setup (from skills/prj-setup/assets/labels.txt). Every phase that writes to GitHub uses these labels — never invents new ones.
prj/phase:{Discovered,Triaged,VerifyClaim,Reviewing,FixPlan,AdversarialCheck,FixImpl,Decision,ReadyToMerge,Blocked,Rejected,Archived,PleaseAdvise}prj/decision:{ready-to-merge,request-changes,close-as-not-now}prj/duplicate-of:{n}, prj/please-advise, prj/needs-retriage, prj/user-ack
Install Modes
This skill is the hub. There are three ways to use PR Jangler:
- Full pack — install the whole plugin. The hub plus all 12 phase skills land in
.claude/skills/. Recommended for autonomous operation.
- Hub only — install just
pr-jangler/. You get the routing knowledge, conventions, label vocab, and operating principles, but no executable scripts. Useful for orienting an agent that will hand off to a separately-installed phase skill, or for understanding the workflow before committing all 12.
- À la carte — copy individual
prj-* skills into your project. Skip the hub; each child SKILL.md is self-contained for its phase.
When this hub is loaded and a user task names a phase action that requires an uninstalled child, point them at the missing skill rather than improvising it: "this needs prj-verify-claim, which is not installed at .claude/skills/prj-verify-claim/. Install via <plugin install line> or copy from the pack repo."
Out of Scope
This hub routes the PR Jangler module. It does NOT:
- Review PRs in repos other than
prj_repo. The configured repo is the workspace; multi-repo orchestration is not built.
- Write or modify skills. Skill authoring belongs to
skill-creator, not here.
- Handle non-PR GitHub events (Issues, Discussions, Actions failures). Use a dedicated issue-triage skill if you need that.
- Replace BMad core or other modules. It runs alongside them under
_bmad/.
- Generate code changes from scratch. It can plan and implement fixes for verified bugs on existing PRs — not greenfield feature work. Use
bmad-bmm-dev-story or incremental-implementation for that.
- Bypass the verification gate. A claim that cannot be reproduced gets a polite pushback comment, not a speculative fix.
