Borrowing it
Nothing to install: this file belongs to maksutovic/joycraft. 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/maksutovic/joycraft/main/AGENTS.mdgit clone --depth 1 https://github.com/maksutovic/joycraftWrote 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/maksutovic/joycraft/agents-md)<a href="https://agentmods.dev/instructions/maksutovic/joycraft/agents-md"><img src="https://agentmods.dev/badge/instructions/maksutovic/joycraft/agents-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/maksutovic/joycraft/agents-md"><img src="https://agentmods.dev/badge/instructions/maksutovic/joycraft/agents-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 | $0.02485 | $0.02485 |
| Opus 5.5 | $0.00994 | $0.00994 |
| Sonnet 5.5 | $0.00497 | $0.00497 |
| Haiku 4.5 | $0.00248 | $0.00248 |
Grade A, and why
joycraft AGENTS.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 1mo 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 — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Joycraft
What: A CLI + Claude Code plugin that scaffolds and upgrades AI development harnesses. npx joycraft@latest update installs skills, templates, boundaries, and documentation structure into any project, taking it from Level 1 to Level 4 on Dan Shapiro's 5 Levels of Vibe Coding.
Component: npm package (CLI) + agent skills (Claude Code, Codex, Pi, Copilot, omp) | Updated: 2026-09-06
Behavioral Boundaries
ALWAYS
- Run
pnpm test && pnpm typecheckbefore committing (pnpm testalready runs once and exits —--runis not a valid pnpm flag here and fails) - Run
pnpm sync-skillsafter editing anything undersrc/skills/orsrc/local-skills/, and commit the regenerated + installed copies in the same commit — the installed trees are.claude/skills,.agents/skills,.pi/skills,.github/skills, and.omp/skills, and a stale one is what shipped twelve wrong copilot skills in 0.7.3 - Commit style:
verb: concise message - Reference atomic specs when implementing features — each spec is in
docs/features/<slug>/specs/ - Test against multiple stack types (Node.js, Python, Rust, Go at minimum)
- Push to feature branches after each commit
- Open a PR when all specs in a feature are complete
- Run
/release-docs-syncbeforegh pr create— a PR that touchessrc/,templates/, orscripts/must change CHANGELOG.md or carry aDocs: none — <reason>line in its body; a PreToolUse hook and the Docs Sync CI check both runscripts/check-docs-sync.mjsand block otherwise - Use descriptive branch names: feature/spec-name
ASK FIRST
- Adding dependencies — this is a CLI tool, keep it minimal
- Changing template content outside an approved spec — templates are the core product; a spec that names the change is the approval
- Changing skill content outside an approved spec — skills are the user-facing interface; a spec that names the change is the approval
- Modifying the CLAUDE.md merge/improve logic — this touches user files
- Publishing to npm
- Merging PRs to main/master
- Any destructive git operation (force-push, reset --hard, branch deletion)
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.
- 1mo ago Changed · +77 tokens per session 7ce5f28b63f2
- 1mo ago Changed · -8 lines · -22 tokens per session 16bafdf45007
- 1mo ago Changed · +9 lines · +199 tokens per session 13e792ecb873
- 1mo ago Changed · +1 lines · +69 tokens per session 03b75460b5b1
- 1mo ago Changed · -3 lines · +95 tokens per session be9dd60db012
- 1mo ago First seen · 193 lines · 2,067 tokens per session scan A 0fffab637b62
joycraft AGENTS.md is an instructions file published in the GitHub repository maksutovic/joycraft (15 stars, last pushed 1mo ago), licensed MIT. It adds 2,485 tokens to every session, about $0.0099 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.
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