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 gongyijie85/dsh-ecc --skill config-gcgit clone --depth 1 https://github.com/gongyijie85/dsh-eccWrote 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/gongyijie85/dsh-ecc/config-gc)<a href="https://agentmods.dev/skills/gongyijie85/dsh-ecc/config-gc"><img src="https://agentmods.dev/badge/skills/gongyijie85/dsh-ecc/config-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/gongyijie85/dsh-ecc/config-gc"><img src="https://agentmods.dev/badge/skills/gongyijie85/dsh-ecc/config-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 | $0.00101 | $0.01967 |
| Opus 5 | $0.00051 | $0.00983 |
| Sonnet 5 | $0.00020 | $0.00393 |
| Haiku 4.5 | $0.00010 | $0.00197 |
Grade B, and why
config-gc scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Reads agent configuration directoriesmediumAgent snooping
.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.
grep -rq "$name" ~/.claude/settings.json ~/.claude/settings.local.json 2>/dev/null \ This is a copy
95% identical to config-gc — 30 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Config GC — Garbage Collection for Claude Code Setups
Borrowed from runtime garbage collection: periodically scan for objects that are no longer referenced, redundant, expired, or low-value, and reclaim the space. The critical difference: here, collection requires a human in the loop. Never delete autonomously.
When to Activate
- The user asks to clean up, audit, or slim down their Claude Code configuration
- The user complains about too many skills, noisy hooks, or slow session startup
- A monthly/periodic config review is due
- After installing a large skill pack (e.g. this repo), to reconcile overlaps with existing setup
Do NOT activate for: cleaning project source code (that's refactoring), clearing chat history, or uninstalling Claude Code itself.
Design Philosophy
- Append-only configs leak. Skills, memory files, hooks, and permission entries only ever get added. Without periodic review they rot silently.
- Regular audits beat one-time purges. Scan every ~30 days, propose a small batch of candidates each time.
- Per-channel strategies. Each accumulation type (skills, hooks, permissions, ...) has its own staleness signals — don't apply one rule everywhere.
- Soft-delete first. Rename to
.disabled> move to~/.claude/_gc_trash/> real deletion. Always keep an undo path. - Forced human-in-the-loop. Every candidate gets its own
[y/n/skip]confirmation. No "yes to all" shortcut. - Keep a log. Every GC run appends to
~/.claude/gc_log.md: what was touched, why, and how to undo it.
Scan Channels
| # | Channel | Path | Staleness / redundancy signals |
|---|---|---|---|
| 1 | Skills | ~/.claude/skills/*/ |
Heavily overlapping names; never triggered in recent transcripts; domain mismatch with the user's actual work; broken or empty SKILL.md |
| 2 | Memory | ~/.claude/**/memory/*.md + its index |
Multiple index entries for one topic; contents contradicting newer entries; dates that have passed; orphan files missing from the index; sub-100-word fragments that should merge |
| 3 | Hooks | ~/.claude/hooks/ + settings |
Scripts present on disk but referenced by no hook config; old versions superseded by rewrites |
| 4 | Permissions | permissions.allow in settings.json / settings.local.json |
Duplicate entries; specific entries already covered by a wildcard (e.g. Bash(git push) when Bash(*) is allowed); one-off grants from past experiments |
| 5 | MCP servers | ~/.claude.json or project .mcp.json |
Servers that fail to connect; functional duplicates; long-unused |
| 6 | Scheduled reminders / jobs | wherever the user keeps them | Fired one-shots older than 30 days; jobs whose target scripts no longer exist |
| 7 | Project history | ~/.claude/projects/*/ |
Stale handoff snapshots; session records superseded by newer state |
| 8 | Runtime caches | cache/, file-history/, logs/, shell-snapshots/ |
Sort by size and mtime; propose items >30 days old and large |
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.
- 10d ago First seen · 121 lines · 101 tokens per session scan B e8ade5c8d487
config-gc is a skill published in the GitHub repository gongyijie85/dsh-ecc (7 stars, last pushed 3d ago), licensed MIT. It adds 101 tokens to every session and 1,967 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). It is 95% identical to config-gc, differing in 30 lines, and is treated as a copy.
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