Agent skill · operations · jeremylongshore
janitor-value
Show whether each skill is earning its context-window cost — combined tokens-used view sorted by waste. Use when the user asks 'are my skills worth it', 'what's my context budget', 'which skills are dead weight', or wants to audit skill value, token cost, or usage. Trigger with '/janitor-value'.
Why this skill is useful
Adds a script that evaluates skill usage and token cost, providing insights on skill efficiency that the AI wouldn't generate on its own.
What it needs
Requires bash installed locally. About 3k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Skill Value Report Show whether each installed skill is earning the context-window tokens it costs. Overview Combine token cost and usage tracking into a single view of every installed skill, sorted with the heaviest unused skills at the top. The report splits each skill's cost into what is permanently loaded (the description) and what only loads on demand (the body), then cross-references recent invocations so the user can see which skills are dead weight. Replaces the v1.2 split between /janitor-tokens (cost only) and /janitor-usage (usage only). Prerequisites Claude Code with the skills-janitor plugin installed (provides scripts/value.sh) bash 3.2+ (the stock macOS bash works; no external dependencies) Read access to ~/.claude/skills, ~/.claude/agents, and local Claude Code session history No authentication or API keys required — the script reads local files only Instructions Step 1: Run the value script --weeks N — usage lookback window (default: 4) --budget N — context window size for % calculations (default: 200000) --json — emit raw JSON Step 2: Present the results Show the table and summary to the user. When explaining results, do NOT describe body tokens as permanent context cost — only descriptions are always loaded. Plugin-namespaced skills appear with their full invocation name (e.g., marketing-skills:image, figma:figma-use). Step 3: Suggest action when waste is high If "unused skill cost" exceeds 20% of the budget, recommend the user run /janitor-report for a full health check or (in v1.4+) /janitor-swipe to triage interactively. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/janitor-value