How do I install the Ask Context Janitor skill?

Run npx skillmds@latest add navanithans/ask-context-janitor in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Ask Context Janitor skill do?

Token optimizer subagent. Summarizes large text into dense JSON or minimal Markdown. It is listed under Docs & Writing on SkillMD.

Is Ask Context Janitor safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Ask Context Janitor?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ask Context Janitor free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Ask Context Janitor?

NavanithanS (@navanithans) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ask Context Janitor by navanithans — Agent Skill

Name: Ask Context Janitor
Author: NavanithanS

File contents

Usage

This skill is intended for instances where large files or extensive outputs from parallel agents need to be digested without polluting the main contextual space.

Invoke the skill when you encounter:

Massive .log files from build errors.
Massive ARCHITECTURAL_AUDIT.md files generated by multiple agents.
Large git diff outputs spanning many files.

The AI will output an OPTIMIZED_CONTEXT.md file stripping away boilerplate and leaving only vital information.

Examples

Before (Raw Log)

2026-03-07T14:32:11 [INFO] Starting build process...
2026-03-07T14:32:11 [INFO] Fetching dependencies from registry.npmjs.org
2026-03-07T14:32:12 [WARN] Unmet peer dependency for React 18, found 17
2026-03-07T14:32:15 [ERROR] Webpack compilation failed: Cannot resolve module 'crypto' in /src/utils/hash.js
2026-03-07T14:32:15 [INFO] Shutting down build process.

After (Optimized output)

# Error Digest
- **Issue**: Webpack compilation failed. Missing module 'crypto'.
- **File**: `/src/utils/hash.js`
- **Warning**: Unmet peer dependency (React 18 expected, 17 found).

Best Practices

Never allow write access: This skill must operate purely as a reader and synthesizer. It must not modify source code.
Instruct strict schemas: Always tell the janitor the exact JSON or markdown format you want returned.
Use for Subagent Aggregation: If 5 subagents return 5 full markdown reports, use the context janitor to merge them into a 10-line executive summary.

Notes

The agent running this skill should ideally be a smaller, faster model (e.g., Haiku or Flash) as its primary job is parsing and reduction, rather than deep logical reasoning.

---name: ask-context-janitordescription: Token optimizer subagent. Summarizes large text into dense JSON or minimal Markdown.---<critical_constraints>❌ STRICTLY NO modifying source code or logic.❌ STRICTLY NO executing the code being summarized.✅ MUST remove all boilerplate, timestamp headers, and non-essential filler.✅ MUST format outputs in dense JSON or minimalist bulleted Markdown.</critical_constraints><heuristics>- massive `.log` file → extract just errors, warnings, and file paths.- multiple agent reports → merge into a single, 10-line executive summary.- massive `git diff` → output file list and high-level actions only.</heuristics><tools_allowlist>✅ Read, Grep, Glob, Subprocess (readonly)</tools_allowlist><tools_denylist>❌ Write, Edit, Replace, run_command (write)</tools_denylist>## UsageThis skill is intended for instances where large files or extensive outputs from parallel agents need to be digested without polluting the main contextual space.Invoke the skill when you encounter:- Massive `.log` files from build errors.- Massive `ARCHITECTURAL_AUDIT.md` files generated by multiple agents.- Large `git diff` outputs spanning many files.The AI will output an `OPTIMIZED_CONTEXT.md` file stripping away boilerplate and leaving only vital information.## Examples### Before (Raw Log)```text2026-03-07T14:32:11 [INFO] Starting build process...2026-03-07T14:32:11 [INFO] Fetching dependencies from registry.npmjs.org2026-03-07T14:32:12 [WARN] Unmet peer dependency for React 18, found 172026-03-07T14:32:15 [ERROR] Webpack compilation failed: Cannot resolve module 'crypto' in /src/utils/hash.js2026-03-07T14:32:15 [INFO] Shutting down build process.```### After (Optimized output)```markdown# Error Digest- **Issue**: Webpack compilation failed. Missing module 'crypto'.- **File**: `/src/utils/hash.js`- **Warning**: Unmet peer dependency (React 18 expected, 17 found).```## Best Practices- **Never allow write access**: This skill must operate purely as a reader and synthesizer. It must not modify source code.- **Instruct strict schemas**: Always tell the janitor the exact JSON or markdown format you want returned.- **Use for Subagent Aggregation**: If 5 subagents return 5 full markdown reports, use the context janitor to merge them into a 10-line executive summary.## NotesThe agent running this skill should ideally be a smaller, faster model (e.g., Haiku or Flash) as its primary job is parsing and reduction, rather than deep logical reasoning.

Frequently asked questions

Ask Context Janitor