bggpipe/CLAUDE.md

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project

bggpipe — a resumable, idempotent CLI pipeline that turns shelf photos into a BoardGameGeek collection, in six stages:

#	Command	What it does	Status
1	bggpipe extract	Claude vision reads titles + edition cues from photos/	working
2	bggpipe resolve	match titles to BGG IDs and versions via XML API2	working (stub data — see hard rules)
3	bggpipe review	human review of ambiguous/unmatched items; --web serves a FastAPI UI on port 8377	working
4	bggpipe diff	diff approved matches against the existing BGG collection	working
5	bggpipe upload	add games via a logged-in Playwright session	built; browser flows unverified until real data exists (--dry-run works now)
6	bggpipe enrich	fetch full game/version metadata into games.json	working

Full design lives in bgg-shelf-pipeline-spec.md (read it before changing pipeline semantics); the upload-stage walkthrough is in docs/bgg-upload-flow.md.

Commands

• uv sync — install deps (Python 3.12+, managed by uv; use uv add, never pip). Playwright needs a one-time uv run playwright install chromium.
• uv run bggpipe <stage> — run a pipeline stage. Non-secret settings come from config.toml (username, dirs, vision model, rate limit); --config overrides the path.
• uv run pytest — 105 tests, all offline against fixtures. Tests marked live hit the real BGG API (read-only) and are skipped unless you pass --run-live.
• uv run ruff check / uv run ruff format — lint (rules E, F, I, UP, B, SIM) and format.

Layout

• src/bggpipe/ — cli.py (typer app), one module per stage (extract, resolve, review + webreview, diff, upload, enrich), plus bgg_client.py (rate-limited XML API2 client that caches responses to data/bgg_cache/), normalize.py (title normalization), models.py (dataclasses), config.py.
• scripts/ — write_stub_fixtures.py / write_photo_fixtures.py generate synthetic fixtures; record_fixtures.py re-records real API responses once a token exists.
• tests/fixtures/bgg_cache/ — stub XML fixtures the offline tests run against.
• data/ — pipeline state (CSV/JSON artifacts are committed; caches are not — see Git).

Hard rules (from spec — never violate)

• ≤1 request every 2 seconds to any BGG endpoint; jittered backoff on 429/503. Upload stage: 2–4 s randomized delay between games.
• Credentials never touch disk or logs. ANTHROPIC_API_KEY, BGG_USERNAME, BGG_PASSWORD, BGG_API_TOKEN come from env vars only. Playwright storage state is credential-adjacent — keep it gitignored.
• The XML API requires a registered app token (Authorization: Bearer, from BGG_API_TOKEN) — unregistered requests get 401. Until Eric's registration at boardgamegeek.com/applications is approved, tests run on the stub fixtures in tests/fixtures/bgg_cache/; re-record them with scripts/record_fixtures.py once the token exists.
• Every stage is idempotent and resumable — killing mid-run and restarting must lose no work; re-runs skip already-processed items.
• Use only the XML API2 and the public website — no undocumented BGG endpoints (BGG tightened access policies in 2025).
• BGG has no write API: writes drive the real website with a logged-in Playwright session.
• Stub-resolved data is never upload-ready. All version_ids (and some game data) in matches.csv, to_add.csv, and to_update.csv currently come from SYNTHETIC stub fixtures — placeholders until real fixtures exist. When BGG_API_TOKEN arrives: delete both cache dirs, re-record fixtures, resolve --force, re-review. The caches carry a STUB_FIXTURES.marker provenance file (written by the fixture generators); the upload stage MUST refuse to run while data/bgg_cache/STUB_FIXTURES.marker exists.

Domain gotchas

• Base game vs. expansion vs. new edition is the top failure mode — bias matching toward ambiguous over auto-match ("Wingspan Europe" must not match base Wingspan).
• Editions/versions matter: Eric owns multiple editions of some games — each is a separate collection entry (keyed by collid on BGG). Never guess a version: no legible cues → version_unknown and a version-less collection entry.
• Normalize titles (casefold, strip punctuation/articles, special chars like é/&/:) identically on both sides of a match; dedupe across photos but keep source_photos provenance.
• Detailed BGG API behavior (202 queueing, collection-endpoint quirks, endpoints): use the bgg-api skill. If the spec's BGG behavior changes, update the bgg-api skill to match — they must not drift.

Git

• Remote is self-hosted Gitea 1.26 (git.kestrelsnest.social/eric/bggpipe), not GitHub — gh CLI does not work here.
• Commit data/matches.csv, data/to_add.csv, data/to_update.csv, data/upload_log.csv, data/titles.json, data/unidentified.json, data/unidentified_dismissed.json, data/games.json, and the collection snapshot XMLs. Never commit data/bgg_cache/, data/extract_raw/, photos/, Playwright storage state, or .env.