Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add signalcompose/claude-tools/plugin install codeWrote 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/commands/signalcompose/claude-tools/checkup)<a href="https://agentmods.dev/commands/signalcompose/claude-tools/checkup"><img src="https://agentmods.dev/badge/commands/signalcompose/claude-tools/checkup/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/commands/signalcompose/claude-tools/checkup"><img src="https://agentmods.dev/badge/commands/signalcompose/claude-tools/checkup.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 | $0.00016 | $0.00252 |
| Opus 5.5 | $0.00006 | $0.00101 |
| Sonnet 5.5 | $0.00003 | $0.00050 |
| Haiku 4.5 | $0.00002 | $0.00025 |
Grade A, and why
checkup 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.
What it actually says
/code:checkup
merge 前に確認したい項目を surface する reminder skill。done / not done は判定しない。user が各項目を見て判断します。
Invoke the checkup skill via the Skill tool. The skill reads ${CLAUDE_PLUGIN_ROOT}/skills/checkup/SKILL.md for its hardcoded core checklist and additionally scans CLAUDE.md (user global + project-local) for any project-specific pre-merge items to surface.
Core checklist (always shown)
- simplify
- pr-review-team
- secret scan (trufflehog)
- .gitignore security patterns
- tests
- docs
Use it like
/code:checkup
そのまま叩くだけ。引数なし。
関連
/code:pr-review-team— team review（checkup が「やった？」と surface する対象の一つ）/code:trufflehog-scan— secret scan（checkup が surface する対象の一つ）
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 First seen · 32 lines · 16 tokens per session scan A a3f64a77e4ca
checkup is a command published in the GitHub repository signalcompose/claude-tools (4 stars, last pushed 1mo ago), licensed MIT. It adds 16 tokens to every session and 252 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
Other commands, from other repositories
speckit.spex.submit
Push and create PR for team review, with optional watch mode for CI monitoring.
git
The pre-finish status: branch, hygiene findings, message checks, workflow lint, template state.
merge-conflict-analysis
You are analyzing merge conflicts for PR #${{ pr-number }}.
release-tag
Create and push a version tag after a release PR has been merged.
factory
Linha de montagem multi-agente (Software Factory) — spec-writer → builder em worktree isolado → 4 revisores paralelos (Security, Code, UI, UX) → approver com gate de risco e dashboard visual.
repo-audit
Audit a codebase (local or remote GitHub/GitLab) against architecture principles and requirements, surfacing drift, risk, and missing decisions.