Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/mitsuhiko/gh-issue-sync/agents-mdgit clone --depth 1 https://github.com/mitsuhiko/gh-issue-syncWhat 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 | $0.00187 | $0.00187 |
| Opus 5 | $0.00093 | $0.00093 |
| Sonnet 5 | $0.00037 | $0.00037 |
| Haiku 4.5 | $0.00019 | $0.00019 |
Grade A, and why
gh-issue-sync 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 2d 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.
What it actually says
Development Rules
First Message
If the user did not give you a concrete task in their first message, read README.md
Commands
- NEVER commit unless user asks
GitHub Issues
- We're dogfooding hard here, so always read them locally (unless you need comments)
go run ./cmd/gh-issue-sync pull cat .issues/open/NUMBER-*.md
Don't use gh issue view 42, use cat .issues/open/42-*.md (unless you notice it's missing)
Tools
- Use our own github issue sync (go run ./cmd/gh-issue-sync) for most operations
- GitHub CLI for issue comments/PRs
- TUI interaction: use tmux
Style
- Keep answers short and concise
- No emojis in commits, issues, PR comments, or code
- No fluff or cheerful filler text
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.
- 2d ago First seen · 26 lines · 187 tokens per session scan A a121f61f7688
gh-issue-sync AGENTS.md is an instructions file published in the GitHub repository mitsuhiko/gh-issue-sync (164 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 187 tokens to every session, about $0.0009 per session on Opus 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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