Context Doctor

Reduces token waste in Claude Code sessions (run the built-in `/context` first; this skill covers what it does not) across two axes — context footprint (auto-generates .claudeignore, guides over-read files and /clear timing) and command output (routes to a command-output proxy/hook such as rtk to trim verbose CLI stdout). In hub environments, regularly audits bloated CLAUDE.md/MEMORY.md/memory/*.md files and proposes compression. Usable standalone without a hub clone.

30 stars 1 forksAI, LLMs & Agents

Install

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add chrono-meta/forge-harness --skill context-doctor

Manual install

git clone --depth 1 https://github.com/chrono-meta/forge-harness.git /tmp/forge-harness
mkdir -p ~/.claude/skills
cp -r /tmp/forge-harness/plugins/fh-meta/skills/context-doctor ~/.claude/skills/context-doctor

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# context-doctor — Token Efficiency Diagnosis + Automatic Prescription

Diagnoses the main causes of session token waste and prescribes immediate remedies:
1. No `.claudeignore` → unnecessary files loaded wholesale into context
2. Repeated full reads of large files → paying the same cost N times
3. Not using `/clear` after direction changes → continuing work with accumulated noise
4. Verbose CLI output → every `git`/`ls`/build/test call floods context with stdout (a *different* layer from 1–3 — see §Command-Output Reduction)

**Two reduction axes — keep them distinct.** Causes 1–3 are the **context-footprint** axis (what gets read *into* context: files, history). Cause 4 is the **command-output** axis (tokens produced *by* the tools you run). `.claudeignore` cannot touch command output, and a command-output proxy cannot touch file reads — they are complementary, not substitutes. (Step 3.5 below adds an optional **third**, orthogonal lever — provider-side cache billing — distinct from both.)

**Standalone install** — this skill works normally with plugin install only, without cloning the full meta-harness.

**Built-in `/doctor` first (sister anchor, 2026-07-25)**: since the Claude 5 generation, the official
`/doctor` command claims skill/CLAUDE.md rightsizing ("The new rules of context engineering for Claude 5
generation models" — https://claude.com/blog/the-new-rules-of-context-engineering-for-claude-5-generation-models).

Read the full skill on GitHub

Details

Skill name: context-doctor
Repository: chrono-meta/forge-harness
Path: plugins/fh-meta/skills/context-doctor/SKILL.md
License: MIT
Repo updated: 31 October 2026
Listed in: VoltAgent/awesome-agent-skills

FAQ

What does the Context Doctor skill do?

How do I install the Context Doctor skill?

skills CLI (Claude Code, Cursor, Codex and more): npx skills add chrono-meta/forge-harness --skill context-doctor. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Context Doctor popular?

It lives in chrono-meta/forge-harness, which has 30 GitHub stars and 1 forks, and is included in 1 curated skill list.

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