chub

name	chub
description	Fetch authoritative API docs from context-hub registry (Andrew Ng). Use before writing integration code for any third-party API to reduce hallucination. Search, fetch, annotate, and rate documentation.

Context-Hub (chub)

Fetch curated, LLM-optimized API documentation from the context-hub registry. Always run chub search before writing integration code for a third-party API.

Commands

Search registry:

chub search "stripe"
chub search "openai" --tags llm
chub search              # list all available docs

Fetch documentation:

chub get stripe/api
chub get openai/api --lang py       # Python-specific variant
chub get anthropic/sdk --lang js    # JS-specific variant
chub get stripe/api --full          # all files, not just entry point
chub get stripe/api --json          # structured JSON output for parsing

Persist learnings across sessions:

chub annotate stripe/api "webhook events missing from docs"
chub annotate openai/api "rate limit header: x-ratelimit-remaining-requests"

Rate documentation quality:

chub feedback stripe/api accurate
chub feedback openai/api incomplete

Keep registry fresh:

chub update              # pull latest registry
chub update --force      # force full refresh
chub cache status        # check cache state
chub cache clear         # wipe local cache

When to use

• Before writing code that integrates any third-party API
• When uncertain about API auth patterns, error codes, or request shape
• After discovering a documentation gap — annotate it for future sessions

Typical agentic workflow

1. User asks to integrate an API (e.g. Stripe)
2. Run chub search stripe → find the registry ID
3. Run chub get stripe/api --lang py → read authoritative docs
4. Write integration code grounded in actual docs
5. If gap found: chub annotate stripe/api "note about gap"

Save docs to vault

chub get stripe/api --lang py > "Sources/chub - stripe-api-py.md"

Notes

• Installed at /opt/homebrew/bin/chub (v0.1.3)
• Config at ~/.chub/config.yaml
• Registry is community-maintained markdown; all docs are inspectable
• Use --json flag when piping output to other tools or scripts