Agent skill
janitor-tokens
Show how many context window tokens each skill consumes. Use when the user asks about token cost, context budget, skill size, or wants to know which skills waste the most context space.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/janitor-tokens
Metadata
Additional technical details for this skill
- version
- 1.1.0
SKILL.md
Context Window Token Cost
Show how many tokens each skill's system prompt consumes and identify unused skills wasting context budget.
How to Run
bash ~/.claude/skills/skills-janitor/scripts/tokencost.sh [--budget N] [--weeks N] [--json]
Options
--budget N- Context window size in tokens (default: 200,000)--weeks N- Usage lookback period for cross-referencing (default: 4)--json- Output as JSON
Output
=== Skills Janitor - Context Window Cost ===
Budget: 200,000 tokens
Skill Tokens Budget Used? Last Used
─────────────────────────────────── ─────── ─────── ────── ──────────
marketing-copywriting 2,340 1.2% yes 2026-04-10
n8n-workflows 1,890 0.9% yes 2026-04-12
marketing-seo-audit 1,560 0.8% NO never
marketing-page-cro 1,230 0.6% NO never
...
──────────────────────────────────────────────────────────────────────────
TOTAL 18,720 9.4%
--- Summary ---
Skills loaded: 35 (4 active, 31 unused)
Total token cost: 18,720 (9.4% of 200,000 budget)
Unused skill cost: 14,300 (7.2% of budget wasted)
--- Top Unused Token Wasters ---
1,560 tokens (0.8%) marketing-seo-audit
1,230 tokens (0.6%) marketing-page-cro
...
How Token Estimation Works
- Counts words in each SKILL.md file
- Applies 1.3x multiplier (average English markdown token ratio)
- Cross-references with usage history to flag unused + expensive skills
After Reviewing
- Remove unused skills with the highest token cost first
- Skills you actively use are worth keeping regardless of size
- Use
/janitor-reportto find other issues before cleaning up
Related Skills
- For usage tracking:
/janitor-usage - For removing broken skills:
/janitor-fix --prune - For full health report:
/janitor-report
Recommended Agent Skills
Expand your agent's capabilities with these related and highly-rated skills.
majiayu000/claude-skill-registry
agent-ops-spec
Manage specification documents in .agent/specs/. Use when user provides requirements, acceptance criteria, or feature descriptions that need to be tracked and validated against implementation.
majiayu000/claude-skill-registry
agent-ops-state
Maintain .agent state files. Use at session start, after meaningful steps, and before concluding: read/update constitution/memory/focus/issues/baseline consistently.
majiayu000/claude-skill-registry
agent-ops-spec
Manage specification documents in .agent/specs/. Use when user provides requirements, acceptance criteria, or feature descriptions that need to be tracked and validated against implementation.
majiayu000/claude-skill-registry
agent-ops-testing
Test strategy, execution, and coverage analysis. Use when designing tests, running test suites, or analyzing test results beyond baseline checks.
majiayu000/claude-skill-registry
agent-ops-testing
Test strategy, execution, and coverage analysis. Use when designing tests, running test suites, or analyzing test results beyond baseline checks.
majiayu000/claude-skill-registry
agent-ops-state
Maintain .agent state files. Use at session start, after meaningful steps, and before concluding: read/update constitution/memory/focus/issues/baseline consistently.
Didn't find tool you were looking for?