CC
Context Crusher
🔵 Stable🕐 updated 2026-07-19
🔷 SkillSpec L3
⚙ ships an executable helper
pm-tokens
Compress tool outputs, logs, and JSON before they enter the context window — structural compression via a deterministic stdlib script (schema + samples + stats instead of 300 raw rows), no API, no summarization loss. Use when asked shrink this tool output, my context is full of JSON, compress these logs before analysis, or stop wasting tokens on raw data. Produces the crushed artifact with its token math shown, the crush-or-keep decision rules, and the fetch-the-original escape hatch.
What to give it
▸The payload — the JSON/log/text (or its path), and roughly how it will be used ("I need the error" vs. "I need every row" are opposite answers)
▸The repetition question — is this data uniform (crushable to schema+stats) or is each row genuinely distinct (crushing loses signal — keep or filter instead)?
▸The journey stage — one-shot analysis (crush hard) vs. data the conversation will keep querying (crush to an index, keep the original fetchable)
✅ The bar it holds itself to
Every skill in this library self-verifies — these are this skill's own quality checks, straight from its definition.
✓The token math appears — before, after, percent
✓JSON crushes carry schema and computed stats, never paraphrased numbers
✓Every error/warning line in a log crush survived
✓The original's location and fetch route are stated
✓Too-small inputs were returned unchanged, honestly
⚠️ What it refuses to do
Do not summarize data with a model when structure can compress it — paraphrased numbers are hallucination surface
Do not crush non-uniform, every-row-is-signal data — filter or keep it
Do not drop the escape hatch — irreversible compression turns a saving into a gamble
Do not crush after the tokens are spent — the step belongs in the pipeline
Do not let the crush eat errors — the invariant outranks the ratio
Install
npx pm-claude-skills add --agent claude # or codex · cursor · gemini · hermes
# or one-line MCP (every skill, any client):
claude mcp add pm-skills -- npx -y pm-claude-skills-mcpRelated skills
🔌 Embed this skill
Drop this on your blog, docs, or site — it renders a "Run this skill" card:
<div data-pm-skill="context-crusher"></div>
<script src="https://mohitagw15856.github.io/pm-claude-skills/embed.js" async></script>💬 Discussion
Context Crusher is one of 750 open-source professional AI agent skills — all SkillSpec L3.
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