Imported from svenroth-ai/shipwright-webui (AGENTS.md). Install upstream with npx skills add svenroth-ai/shipwright-webui. Copyright stays with the author.

Shipwright SDLC Framework

This Codex operating contract is shared verbatim with the sibling shipwright-webui repository. Repository-specific architecture, commands, and product conventions come from the local CLAUDE.md; the structure and plugin-development sections below describe the shipwright framework monorepo.

WHAT

Purpose: AI-powered SDLC pipeline built on Claude Code — from user description to deployed, tested, secured application
Architecture: Monorepo of Claude Code plugins (skills + hooks + scripts)
Stack: Python 3.11+ scripts, Claude Code plugin system, uv package manager

Structure

plugins/                    # Claude Code plugins (one per SDLC phase)
  shipwright-run/           # Orchestrator (entry point)
  shipwright-project/       # Requirements decomposition (IREB)
  shipwright-design/        # UI mockups from IREB specs (HTML)
  shipwright-plan/          # Deep planning + external LLM review
  shipwright-build/         # TDD implementation
  shipwright-test/          # Testing (unit + smoke + Playwright E2E)
  shipwright-security/      # Scanner chain + remediation loop
  shipwright-deploy/        # Deployment (extensible flavors)
  shipwright-changelog/     # Git sync + changelog + PR
  shipwright-compliance/    # IREB traceability, RTM, SBOM, dashboard
  shipwright-iterate/       # Daily iteration (complexity-adaptive)
  shipwright-preview/       # Local browser preview
  shipwright-adopt/         # Brownfield onboarding (analyze an existing repo)
  shipwright-grade/         # Read-only Control Grade (A–F) for any repo (lead magnet)
# Command Center WebUI lives at github.com/svenroth-ai/shipwright-webui since v0.4.0
shared/                     # Shared across all plugins
  contracts/                # Cross-plugin public API (B8): compliance.py, iterate.py
  profiles/                 # Stack profile definitions (JSON) + deploy profiles
  templates/                # CLAUDE.md, AGENTS.md, .shipwright/agent_docs, CI templates
  prompts/                  # Shared subagent prompts (code_reviewer, iterate_reviewer)
  schemas/                  # JSON schemas (run_config v2)
  config/                   # Shared config (external_review.json)
  scripts/                  # Shared Python utilities
  tests/                    # Tests for shared scripts and hooks
  constitution.md           # ALWAYS / ASK FIRST / NEVER rules for all agents
scripts/                    # Top-level scripts (install.sh, verify-setup.sh)
docs/                       # User-facing docs (guide.md, hooks-and-pipeline.md)
integration-tests/          # Cross-plugin integration tests
CHANGELOG-unreleased.d/     # Pending changelog drop files (aggregated at release)

HOW

Codex operating policy

Use gpt-5.6-terra with high reasoning for ordinary implementation and finalization.
Use gpt-5.6-sol with high reasoning for required review subagents.
Do not use xhigh or max unless concrete risk, complexity, or a failed review justifies it.
shipwright_model_config.json contains Claude model tiers. Do not reinterpret or edit those values as Codex model names.
For triage-item implementation, follow the locally installed Shipwright iterate skill. In this monorepo its source is plugins/shipwright-iterate/skills/iterate/SKILL.md; the active Claude Code runtime resolves Shipwright from ~/.claude/plugins/cache/shipwright/.
Use one isolated worktree and branch per iterate; never push main directly.
Preserve unrelated and unexplained changes. Do not rewrite, discard, or absorb them silently.
Reviews through the configured OpenRouter route are authorized.
Do not commit mutable derived snapshots such as the root shipwright_test_results.json. Preserve the required test ledger, surface evidence, and declared_removals through the current F5c/F6 contract in the iterate skill.
Delivery is complete only when deliver_pr.py reports DELIVERED.
For plugin/shared changes, follow the marketplace/cache-sync procedure below.

Detailed F0–F11 procedures belong only in the iterate skill; do not duplicate them here.

Development

uv sync                              # Install dependencies
uv run pytest tests/ -v               # Run tests for a plugin (from plugin dir)
uv run pytest integration-tests/ -v   # Run integration tests (from root)
uvx ruff@0.15.15 check .              # Bug-focused lint — GATING in CI (ci.yml)
uv run scripts/verify_local.py        # The CI merge guards that run nowhere else

Run verify_local.py before pushing. ci.yml's required job carries three bespoke guards — the CI-gate guard and the two surface verifiers — that no local step runs, so they are learned about from a red CI run after the iterate reports done. Measured at 4-6 s from a worktree (Windows); expect longer from a clone whose .worktrees/ holds other checkouts, which grade.py also walks. It reports all three in one pass (never short-circuiting, so one push fixes everything CI would reject) and names what would block.

It is a pre-flight, not a substitute: CI checks a clean checkout on a pinned interpreter, and its Repair-PR safety (gate) reads the PR's base revision so a branch cannot vouch for itself. Note also that it vets your working tree while CI vets the commit you push — it prints which, and warns when the tree is dirty. F0 runs it for you inside an iterate (after the leak-guard, before the suite, guarded on the file existing); typing it yourself is still how you check a tree outside a run.

Lint is a hard CI gate. .github/workflows/ci.yml runs uvx ruff@0.15.15 check . with no || true / continue-on-error, so a lint failure blocks merge. The ruleset is deliberately curated (Pyflakes + a few bug-class pycodestyle rules, cosmetic rules omitted) and lives in the root pyproject.toml [tool.ruff.lint] — run it locally before pushing. ruff is pinned (not a project dependency) so a new release can't silently change the gate.

Plugin Structure (each plugin follows this pattern)

plugins/shipwright-{name}/
  .claude-plugin/plugin.json          # Plugin metadata
  hooks/hooks.json                    # Claude Code hooks
  agents/                             # Subagent definitions (markdown)
  skills/{name}/SKILL.md              # Main skill definition (folder = slash command suffix)
  scripts/                            # Python scripts (checks, hooks, lib, tools)
  tests/                              # Plugin-specific tests
  pyproject.toml                      # Plugin dependencies

Conventions

All scripts invoked via uv run; Claude Code hooks resolve paths via ${CLAUDE_PLUGIN_ROOT}
Env var prefix SHIPWRIGHT_ (SHIPWRIGHT_SESSION_ID = unified session id; SHIPWRIGHT_PLUGIN_ROOT = active plugin dir); config-file prefix shipwright_ (shipwright_*_config.json, written to the target project)

Hooks & Pipeline Reference

docs/hooks-and-pipeline.md is the single source of truth for what fires when: the context-loading matrix (who reads what), the artifact-write matrix (who writes what), the Claude Code hooks registry, config data flow, and between-phase actions. ALWAYS read it first when working on any plugin. Rule: modifying a hook (hooks.json), adding/removing a pipeline phase, changing phase validators or between-phase actions, or changing what a plugin reads at startup means you MUST update it in the same diff.

When editing plugin-side files

Changes under plugins/*, shared/scripts/, or any SKILL.md file do NOT auto-sync to the plugin cache at ~/.claude/plugins/cache/shipwright/ that Claude Code uses at runtime. After git push, run:

bash scripts/update-marketplace.sh

Then verify with uv run scripts/check_plugin_cache_sync.py --strict. Without the sync, plugin-side fixes land in the dev repo but never reach runtime — that silently cost iterates 7-11 their fixes.

Scope: monorepo-only. End-users consuming the plugins on their own projects run the installed versions and never need this.

Full procedure + rationale: shared/prompts/writing-plugin.md.

Documentation Guide

docs/guide.md is the primary user-facing documentation (README.md is a summary that links to it). Rule: a new skill, a changed skill command/argument/flag, a pipeline-flow change, or a constitution change means checking whether the guide needs an update — its Chapter 4 (phases), Chapter 7.5 (constitution), Chapter 8 (quality gates) and Appendix B (command reference) are the sections that go stale.

Where documents live

docs/ holds hand-written instructions — for users and for developers alike. The test is not who reads it, but that someone wrote it and someone reads it. guide.md and hooks-and-pipeline.md sit there as equals.

.shipwright/ holds the artifacts Shipwright itself keeps — specs under .shipwright/planning/, evidence under .shipwright/compliance/, architecture and decision memory under .shipwright/agent_docs/. They come out of runs; they are not composed by hand.

A file that is neither belongs nowhere:

A record of finished work is deleted. Git history keeps it.
A generated file is not filed among the hand-written ones. If it is committed at all, it lives next to the source it is generated from, so source and render are read together and the drift test has an obvious subject. shared/config/gate_catalog.json + gate_catalog.md is the shape.

For neither case is the answer "then put it under .shipwright/". The agent_docs, planning and compliance trees are read as well — they are not a parking lot for files nobody reads. Relocating an unread file into a read directory is filing, not deciding.

Testing

cd plugins/shipwright-build && uv run pytest tests/ -v   # single plugin
uv run pytest integration-tests/ -v                      # integration

One test root per pytest process — a hard rule, enforced by the repo-root conftest.py (exit 4). Roots: integration-tests, shared/tests, shared/scripts/tests, shared/scripts/tools/tests, each plugins/*/tests. Each needs scripts/lib/tools to mean a different directory, and Python caches whichever package loads first — sys.path order cannot fix it (ADR-044). One root per invocation, one --junitxml per root; merge afterwards. Why, plus the two gaps the guard does not cover: .shipwright/planning/iterate/iterate-2026-07-27-pytest-root-composition.md.

Context

Guide: docs/guide.md (primary user-facing documentation)
Hooks & Pipeline: docs/hooks-and-pipeline.md (context loading, hooks registry, between-phase actions)
Glossary: shared/glossary.md (mandatory-read — shared vocabulary used by hooks, agents, subagents, and compliance audits — Allowlist, Ratchet, Anti-Ratchet, Producer, Action-Unit, Canon-Gate, …)

Pre-commit hooks

Contributors must install the bloat anti-ratchet pre-commit hook once per clone:

bash scripts/install-hooks.sh       # POSIX / Git-Bash on Windows
.\scripts\install-hooks.ps1         # PowerShell on Windows

This sets git config core.hooksPath scripts/hooks (idempotent; refuses to overwrite an existing different value without --force). The hook only blocks commits that ratchet an existing entry in shipwright_bloat_baseline.json — new crossings are surfaced by the Group H detective audit post-merge. See shared/glossary.md for the terminology and shared/scripts/lib/anti_ratchet.py for the rule.

Review subagents: standing request. Workflows: ask every time.

The review cascade is requested by default — spawn it with gpt-5.6-sol and high reasoning, never pause to ask, and never record a review not_run citing a session policy. That is spec-reviewer → code-reviewer → doubt-reviewer plus the review subagents other phase skills prescribe (build Step 6, campaign review). Codex withholds subagent spawning until the user asks; this file is that request, and it stands for every session. The grant covers reviewers, not fan-out. Dynamic workflows, deep-research, and parallel implementation subagents (build's section-builder loop) spend openly and stay the operator's call — ask explicitly, every time, and never infer them from the grant above. A project that does not want this can delete the section; it is deliberately plain and must not be compressed further, because it has to read as the user's request at runtime.

Asking the user questions (plain language)

Every interactive question — clarification, choice, confirmation — must be answerable by a non-senior developer or a normal user without decoding jargon. The person answering may not know the internals.

Lead with the functional meaning: what the choice changes about how the app behaves, not the implementation. "Should a deleted item be recoverable, or gone for good?" — not "soft delete with a tombstone flag, or hard delete?".
Gloss any unavoidable term in parentheses (e.g. "idempotent — safe to run twice without doubling the effect").
Make options concrete and comparable: each in plain words with its real-world trade-off ("A is simpler but slower to load; B is faster but adds a setup step"), never a raw technical menu.
Rule of thumb: a product owner should be able to answer without asking "what does that mean?". If they couldn't, rewrite it.

This applies to every interactive question — clarifications, plan approvals, design feedback, and remediation choices alike. It governs phrasing only; the underlying rigor of the work is unchanged.

shipwright-webui

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