Borrowing it
Nothing to install: this file belongs to acostanzo/quickstop. 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/acostanzo/quickstop/main/CLAUDE.mdgit clone --depth 1 https://github.com/acostanzo/quickstopWrote 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/acostanzo/quickstop/claude-md)<a href="https://agentmods.dev/instructions/acostanzo/quickstop/claude-md"><img src="https://agentmods.dev/badge/instructions/acostanzo/quickstop/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/acostanzo/quickstop/claude-md"><img src="https://agentmods.dev/badge/instructions/acostanzo/quickstop/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 | $0.00368 | $0.00368 |
| Opus 5.5 | $0.00147 | $0.00147 |
| Sonnet 5.5 | $0.00074 | $0.00074 |
| Haiku 4.5 | $0.00037 | $0.00037 |
Grade A, and why
quickstop 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 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
Quickstop Plugin Marketplace
A Claude Code plugin marketplace.
Marketplace Management
Plugin cache is keyed by version number. If you modify plugin files without bumping the version, users won't get the changes until they reinstall.
Before pushing changes to any plugin, update all three files:
plugins/[name]/.claude-plugin/plugin.json— bump the version.claude-plugin/marketplace.json— match the version (sourcefield is required)README.md— update the displayed version
Run the version check script before pushing:
./scripts/check-plugin-versions.sh
Install git hooks for automatic enforcement:
./scripts/install-hooks.sh
Dev Tools
Repo-level skills in .claude/ for plugin authors:
/smith <plugin-name>— Scaffold a new plugin with correct structure, frontmatter, and marketplace registration/hone <plugin-name>— Audit an existing plugin's quality against the Claude Code plugin spec (8-category scoring)
Commit Conventions
Commits and PR titles follow Conventional Commits. The full rule — types, scopes, and the engineering-ownership stance (no AI co-author trailers) — lives in .claude/rules/commit-conventions.md.
chore(claudit): bump to v2.6.2
docs: drop the retired plugins from the README
Testing
claude --plugin-dir /path/to/quickstop/plugins/plugin-name
Refer to the Claude Code plugin documentation for authoring details.
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 · 47 lines · 368 tokens per session scan A 9a6df6dc5e0f
quickstop CLAUDE.md is an instructions file published in the GitHub repository acostanzo/quickstop (46 stars, last pushed 4mo ago), licensed MIT. It adds 368 tokens to every session, about $0.0015 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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