Freesearch search
Claude Code and Codex skills for legal scholarship: verified citation placement (Bluebook/OSCOLA/McGill), law-review docx pipelines, document delivery tooling
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Run the lit-review orchestrator free index search channel against keyless OpenAlex, Crossref, and Semantic Scholar keyword-search endpoints. Use when the user invokes the free search channel, asks for keyless scholarly index search, or needs Stage 4e fallback discovery without SearchAPI, Gemini, or Undermind credentials.
SKILL.md
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Free Index Search channel (Stage 4e) — keyless OpenAlex / Crossref / Semantic Scholar
A zero-key discovery channel: it runs the Stage-0 query list against the free, keyless keyword-search endpoints of OpenAlex, Crossref, and Semantic Scholar and normalizes the real records into the pipeline schema. Together with the agent web-search channel (Stage 4d) it is the "only Claude Code" search fallback — no search account or API key required.
Unlike web search, this is a plain subprocess (it calls keyless HTTP APIs), so it runs the same way in any context.
When to use
- The user has no
SEARCHAPI_API_KEY/GEMINI_API_KEY/ Undermind login — this is the keyless search backbone, OR - You want extra grounded, clean-metadata coverage from the scholarly indexes alongside the other channels.
Run it in parallel with whatever else is available; its output merges at dedup.
Recipe
Use the same Stage-0 query list Google Scholar uses:
python freesearch-search/scripts/freesearch_search.py \
--queries-file OUT/scholar_queries.json -o OUT/stage4e_freesearch.json
Or a single query with --query "...". Options: --per-query N (default 20) and
--sources openalex,crossref,semanticscholar (any subset). It writes
stage4e_freesearch.json (+ .ris) with source set per index, deduped across
indexes by DOI then title. The stage[0-9]*.json dedup glob picks it up
automatically.
Keys
None required. OpenAlex and Crossref use the polite pool via a mailto (set
LITREVIEW_CONTACT_EMAIL to use your own contact). If present, OPENALEX_API_KEY
and SEMANTIC_SCHOLAR_API_KEY are used only to raise rate limits. It makes no LLM
API calls.
Anti-hallucination
Every hit is a real index record, so there is nothing to fabricate — relevance, not existence, is the only variable, and screening handles relevance. Stage 5b verification still confirms each paper downstream. The keyless Semantic Scholar tier is rate-limited, so it is queried with a short delay and skipped gracefully on a 429.