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 timurgaleev/vibestack --skill vibe-gcgit clone --depth 1 https://github.com/timurgaleev/vibestackWrote 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/timurgaleev/vibestack/vibe-gc)<a href="https://agentmods.dev/skills/timurgaleev/vibestack/vibe-gc"><img src="https://agentmods.dev/badge/skills/timurgaleev/vibestack/vibe-gc/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/timurgaleev/vibestack/vibe-gc"><img src="https://agentmods.dev/badge/skills/timurgaleev/vibestack/vibe-gc.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 | $0.00027 | $0.02048 |
| Opus 5.5 | $0.00011 | $0.00819 |
| Sonnet 5.5 | $0.00005 | $0.00410 |
| Haiku 4.5 | $0.00003 | $0.00205 |
Grade A, and why
vibe-gc scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 178 lines — stays where its author put it; the contents beside it link to each section on GitHub.
When to invoke
Use when the owner asks to clean up, slim down or audit what is installed
around the agent: too many skills, noisy hooks, a long permission list, a
bloated ~/.claude, or a periodic (roughly monthly) configuration review. It
is not for cleaning project source code, chat history or the pack's own
skills — ./install already prunes skills the pack withdrew.
The skill is audit-only by default. Nothing moves until the owner confirms that one item, and every move is a soft delete with a logged undo.
{{include lib/snippets/session-host.md}}
Step 1: Scan
"${VIBESTACK_HOME:-$HOME/.vibestack}/bin/vibe-gc" scan --days 30
Each row is id channel path signal size_kb mtime confidence, ranked
high → low, then by size, at most 20 rows. A shorter batch is the point: this
runs periodically, not exhaustively. Show the rows as a numbered table. When
the scan prints nothing, say the configuration is clean and stop.
What the channels mean:
- skills — directories in
~/.claude/skills,~/.agents/skills,~/.cursor/skills,~/.kiro/skillsor~/.copilot/skills($COPILOT_HOME/skillswhen set) that the root's.vibestack-manifestdoes not claim. A missing or emptySKILL.mdis high confidence; a name that repeats another root's skill is low.usage: unmeasuredmeans no usage data exists for that root — it never makes an item more disposable. - hooks — scripts under
~/.claude/hooks/that nothing in the usersettings.json/settings.local.jsonand no other hook script references. A project's own.claude/settings.jsonis not read, so confirm before trashing a hook a project may call. - permissions — duplicate
permissions.allowentries andBash(...)entries already covered byBash(*). The scan only reports them. - mcp — configured servers. The bin cannot see whether a server is live.
- caches —
file-history,shell-snapshotsand theskills.old/skills.staging.*entries an interrupted install leaves beside a skills root, older than--days.
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.
- 3d ago Changed 2816232990a0
- 4d ago Changed · +3 lines bd5b13a0551b
- 5d ago First seen · 175 lines · 27 tokens per session scan A 2da39e5b3dc2
vibe-gc is a skill published in the GitHub repository timurgaleev/vibestack (7 stars, last pushed 2d ago), licensed MIT. It adds 27 tokens to every session and 2,048 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 2026-10-12.
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