docs-indexer

name: docs-indexer description: Use when Codex needs to crawl, inspect, or summarize a documentation website, GitHub docs tree, or local docs folder and produce a relevance-ranked page index, doc-map, source guide, or shortlist of important documentation pages. Trigger for documentation discovery, docs indexing, source-map creation, llms.txt alternatives, docs skill scaffolding, or choosing the most relevant pages from standalone docs sites or repository documentation folders.

Docs Indexer

Create a compact, evidence-backed index of the most important docs pages from a website, GitHub docs tree, or local repository folder.

Workflow

1. Clarify the indexing target:

   • Use website mode for standalone docs sites.
   • Use GitHub tree mode for public github.com/<owner>/<repo>/tree/<ref>/<path> docs folders.
   • Use local mode for a checked-out repo folder or local docs directory.

2. Read references/source-strategy.md when source boundaries, sitemap alternatives, GitHub tree handling, or crawl scope are unclear.

3. Read references/index-output.md when the user needs a durable artifact such as doc-map.md, a source guide for another skill, or a ranked research shortlist.

4. Run the helper with a bounded crawl first:

   uv run --script config/codex/skills/docs-indexer/scripts/build_docs_index.py <source> --max-pages 60 --top 25
   

5. Add --focus "<terms>" when the index should prioritize a topic, task, feature area, or planned skill.

6. Inspect the generated top pages and crawl notes. If the crawl was too shallow, rerun with a tighter --scope-prefix before raising --max-pages.

7. Fetch and read the highest-ranked pages before writing precise guidance. Treat the generated index as a routing artifact, not a replacement for source reading.

Common Commands

Website docs:

uv run --script config/codex/skills/docs-indexer/scripts/build_docs_index.py \
  https://docs.redpanda.com/streaming/current/home/ \
  --scope-prefix /streaming/current/ \
  --max-pages 80 \
  --top 30

GitHub docs folder:

uv run --script config/codex/skills/docs-indexer/scripts/build_docs_index.py \
  https://github.com/openai/codex/tree/main/sdk/python/docs \
  --focus "sdk api quickstart examples" \
  --top 20

Local repo docs:

uv run --script config/codex/skills/docs-indexer/scripts/build_docs_index.py \
  ./docs \
  --output /tmp/doc-map.md

Structured output:

uv run --script config/codex/skills/docs-indexer/scripts/build_docs_index.py \
  https://debezium.io/documentation/reference/stable/index.html \
  --format json \
  --output /tmp/debezium-doc-index.json

Ranking Rules

• Prefer pages that are close to the seed, heavily linked by nearby docs, and named as overview, introduction, getting started, quickstart, concepts, architecture, configuration, API/reference, operations, migration, best practices, or troubleshooting.
• Use --focus for task-specific relevance. A focused crawl for "Kafka transactions" should rank transaction pages over generic overview pages.
• Penalize changelogs, release notes, blog posts, archives, legal pages, and search pages unless the focus terms explicitly need them.
• Keep reasons short: name the strongest title/path match, focus match, inbound links, or seed distance.

Quality Rules

• Keep crawls bounded. Start with --max-pages 40-80; avoid unbounded recursive scraping.
• Stay inside the docs scope. Prefer --scope-prefix for websites with broad nav or marketing links.
• Respect source freshness. Re-run the helper when docs may have changed, then fetch the final pages before citing or encoding claims.
• Do not treat the helper as an authority for exact behavior, API shape, or version semantics. It ranks pages; Codex still needs to read the pages it uses.
• For private repos, use a local checkout instead of adding tokens or credentials to the script invocation.

Resources

• scripts/build_docs_index.py: bounded crawler and relevance-ranked Markdown/JSON index generator.
• references/source-strategy.md: source selection, crawl boundaries, website/GitHub/local handling, and failure modes.
• references/index-output.md: recommended index artifact shape, ranking interpretation, and validation checklist.