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 skills add st0012/cctop --skill cctop-setupgit clone --depth 1 https://github.com/st0012/cctopWrote 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/skills/st0012/cctop/cctop-setup)<a href="https://agentmods.dev/skills/st0012/cctop/cctop-setup"><img src="https://agentmods.dev/badge/skills/st0012/cctop/cctop-setup/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/skills/st0012/cctop/cctop-setup"><img src="https://agentmods.dev/badge/skills/st0012/cctop/cctop-setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00031 | $0.00365 |
| Opus 5.5 | $0.00012 | $0.00146 |
| Sonnet 5.5 | $0.00006 | $0.00073 |
| Haiku 4.5 | $0.00003 | $0.00036 |
Grade A, and why
cctop-setup 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
cctop Setup Skill
Helps install the cctop app required for session monitoring.
When to Use
Run installation guidance when:
- Hook fails with "cctop-hook not found"
- User asks to set up cctop monitoring
- Session tracking is not working
Installation
Step 1: Check if cctop.app is installed
ls /Applications/cctop.app/Contents/MacOS/cctop-hook 2>/dev/null || ls ~/Applications/cctop.app/Contents/MacOS/cctop-hook 2>/dev/null
If not found, the user needs to install cctop.app.
Step 2: Install cctop
Option A: Homebrew (recommended)
brew install --cask st0012/cctop/cctop
Option B: Download from GitHub
Download the latest release from https://github.com/st0012/cctop/releases/latest and move cctop.app to /Applications/.
Step 3: Verify installation
/Applications/cctop.app/Contents/MacOS/cctop-hook --version
Step 4: Launch the app
open /Applications/cctop.app
After Installation
The hooks registered by this plugin will now work. Session data will be written to ~/.cctop/sessions/ when Claude Code or Claude Desktop hooks fire.
The menubar app will show session status in the macOS menu bar.
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 · 54 lines · 31 tokens per session scan A 891050c0ac6d
cctop-setup is a skill published in the GitHub repository st0012/cctop (159 stars, last pushed 22d ago), licensed MIT. It adds 31 tokens to every session and 365 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 2026-08-30.
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