Borrowing it
Nothing to install: this file belongs to lgbarn/shipyard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/lgbarn/shipyard/main/CLAUDE.mdgit clone --depth 1 https://github.com/lgbarn/shipyardWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/lgbarn/shipyard/claude-md)<a href="https://agentmods.dev/instructions/lgbarn/shipyard/claude-md"><img src="https://agentmods.dev/badge/instructions/lgbarn/shipyard/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/lgbarn/shipyard/claude-md"><img src="https://agentmods.dev/badge/instructions/lgbarn/shipyard/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00611 | $0.00611 |
| Opus 5.5 | $0.00244 | $0.00244 |
| Sonnet 5.5 | $0.00122 | $0.00122 |
| Haiku 4.5 | $0.00061 | $0.00061 |
Grade A, and why
shipyard CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 56 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Shipyard
Claude Code plugin (v4.5.0) for structured project execution: idea → brainstorm → plan → build → ship.
Commands
npm test # Full BATS test suite
npm run test:fast # Unit tests only (bats --filter-tags unit)
npm run test:ci # Parallel execution (4 jobs)
bash scripts/check-versions.sh # Verify version sync across files
shellcheck --severity=warning scripts/*.sh hooks/*.sh test/run.sh
Architecture
commands/ 27 slash commands (markdown + YAML frontmatter)
skills/ 19 auto-activating skills (skills/<name>/SKILL.md)
agents/ 10 specialized agents (markdown + YAML frontmatter)
scripts/ State management, version checks, cleanup utilities
hooks/ Plugin lifecycle hooks (SessionStart, TeammateIdle, TaskCompleted, Stop)
test/ BATS test suite + test_helper.bash
docs/ Protocols, guides, state schema, context engineering
.claude-plugin/ Plugin metadata (plugin.json, marketplace.json)
.husky/ Pre-commit: check-versions.sh && npm test
Version Sync
Four files must have matching version numbers. scripts/check-versions.sh enforces this (also runs in pre-commit hook and CI).
package.json.claude-plugin/plugin.json.claude-plugin/marketplace.jsonCHANGELOG.md(top entry)
Conventions
- Files/dirs: kebab-case
- Commits: conventional format —
feat:,fix:,chore:,build:,shipyard(phase-N): - Bash scripts:
set -euo pipefail, ShellCheck compliant (--severity=warning) - Skills: auto-discovered from
skills/*/SKILL.md— no manual registration - Agents: model values are
opus,sonnet,haiku, orinherit - Adding components: see CONTRIBUTING.md
Gotchas
- Pre-commit hook runs
check-versions.sh && npm test— both must pass .shipyard/is gitignored — local project state only, never committed- jq >= 1.6 required —
state-read.shexits code 3 if missing - Symlinked
.shipyard/is rejected (prevents writes outside project) - Team locking uses directory-based locks at
${TMPDIR}/shipyard-state-${hash}.lock - CI matrix tests on macOS, Ubuntu, and Windows (WSL); ShellCheck + version check run on Ubuntu only
- PR version bump enforced — CI rejects PRs where package.json version <= main branch version
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 56 lines · 611 tokens per session scan A 75e189a62feb
shipyard CLAUDE.md is an instructions file published in the GitHub repository lgbarn/shipyard (67 stars, last pushed 8d ago), licensed MIT. It adds 611 tokens to every session, about $0.0024 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
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Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.