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 getklaim/claude-auto-context --skill context-hygienegit clone --depth 1 https://github.com/getklaim/claude-auto-contextWrote 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/getklaim/claude-auto-context/context-hygiene)<a href="https://agentmods.dev/skills/getklaim/claude-auto-context/context-hygiene"><img src="https://agentmods.dev/badge/skills/getklaim/claude-auto-context/context-hygiene/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/getklaim/claude-auto-context/context-hygiene"><img src="https://agentmods.dev/badge/skills/getklaim/claude-auto-context/context-hygiene.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 | $0.00514 |
| Opus 5 | $0.00000 | $0.00257 |
| Sonnet 5 | $0.00000 | $0.00103 |
| Haiku 4.5 | $0.00000 | $0.00051 |
Grade A, and why
context-hygiene 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 9d 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
Context Hygiene Check
Scope Restriction
CRITICAL: You may only CREATE or MODIFY files in .claude/rules/local/.
.claude/rules/*.md(committed team rules): READ-ONLY — analyze but never modifyCLAUDE.md: READ-ONLY — analyze but never modify.claude/rules/local/*.md(auto-generated rules): full read/write access- Hygiene files in
.claude-auto-context/hygiene/: create only
Run a 5-point quality audit on the project's .claude/rules/*.md, .claude/rules/local/*.md, and CLAUDE.md files.
Procedure
- Read all
.claude/rules/*.mdfiles (committed team rules) - Read all
.claude/rules/local/*.mdfiles (auto-generated rules) - Read
CLAUDE.md - Check that rules files exist (committed + local combined)
- If none exist: report "No context files to analyze" and stop
- Run the 5-point checklist:
- H-01 Duplicate: Compare all rules file pairs — flag overlapping globs with same behavior
- H-02 Contradiction: Compare rules pairs AND rules vs CLAUDE.md — flag opposite instructions for same scope
- H-03 Stale Reference: For each rules file with globs in frontmatter, use Glob to verify matching files exist — flag if 0 matches
- H-04 Verbosity: Flag rules files over 500 chars where 50%+ compression is possible — suggest compressed version
- H-06 Priority Placement: When 5+ rules files exist, flag critical rules (error handling, security, testing) that have narrow globs limiting visibility
- For each issue found, create a hygiene file in
.claude-auto-context/hygiene/using the standard format:- Filename:
hygiene-YYYYMMDD-HHMMSS-{slug}.md(type-prefixed, timestamp-based naming) - Include: Status (pending), Created (ISO 8601 UTC), Category (hygiene-*), Problem, Proposal, Evidence, Metrics sections
- Filename:
- Report summary: "{N} issues found, {M} context files analyzed"
- If no issues: "All 5 checks passed. Context files are clean."
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.
- 9d ago First seen · 31 lines · 0 tokens per session scan A b2d4a0024368
context-hygiene is a skill published in the GitHub repository getklaim/claude-auto-context (10 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 514 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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