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 johardi/claude-stack --skill install-cstack-statuslinegit clone --depth 1 https://github.com/johardi/claude-stackWrote 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/johardi/claude-stack/install-cstack-statusline)<a href="https://agentmods.dev/skills/johardi/claude-stack/install-cstack-statusline"><img src="https://agentmods.dev/badge/skills/johardi/claude-stack/install-cstack-statusline/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/johardi/claude-stack/install-cstack-statusline"><img src="https://agentmods.dev/badge/skills/johardi/claude-stack/install-cstack-statusline.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 | $0.00000 | $0.00187 |
| Opus 5.5 | $0.00000 | $0.00075 |
| Sonnet 5.5 | $0.00000 | $0.00037 |
| Haiku 4.5 | $0.00000 | $0.00019 |
Grade A, and why
install-cstack-statusline scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Skill: install-cstack-statusline
Install the cstack-core statusline for the user. Use this skill when the user invokes /install-cstack-statusline or explicitly asks to install or enable the cstack-core statusline.
Steps
-
Find the install script in the plugin cache:
ls -t "$HOME/.claude/plugins/cache/claude-stack/cstack-core/"/*/scripts/statusline/install-statusline.sh 2>/dev/null | head -1 -
If no path is returned, tell the user the cstack-core plugin does not appear to be installed.
-
If a path is found, run it:
bash "<path from step 1>" -
Report the result to the user. On success the script prints:
✅ Statusline installed. Restart Claude Code to see it.
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 · 21 lines · 0 tokens per session scan A c971363fba96
install-cstack-statusline is a skill published in the GitHub repository johardi/claude-stack (2 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 187 tokens. 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.
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