Async on-prem LLM-powered structured information extraction microservice
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Dirk Riemann 290e51416f
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feat(ingestion): fetch_file + MIME sniff + DocumentIngestor (spec §6.1)
Three layered modules the SetupStep will wire together in Task 2.4.

- fetch.py: async httpx fetch with configurable timeouts + incremental
  size cap (stream=True, accumulate bytes, raise IX_000_007 when
  exceeded). file:// URLs read locally. Auth headers pass through. The
  caller injects a FetchConfig — env reads happen in ix.config (Chunk 3).
- mime.py: python-magic byte-sniff + SUPPORTED_MIMES frozenset +
  require_supported(mime) helper that raises IX_000_005.
- pages.py: DocumentIngestor.build_pages(files, texts) ->
  (list[Page], list[PageMetadata]). PDFs via PyMuPDF (hard 100 pg/PDF
  cap -> IX_000_006), images via Pillow (multi-frame TIFFs yield
  multiple Pages), texts as zero-dim Pages so GenAIStep can still cite
  them.

21 new unit tests (141 total) cover: fetch success with headers, 4xx/5xx
mapping, timeout -> IX_000_007, size cap enforced globally + per-file,
file:// happy path + missing file, MIME detection for PDF/PNG/JPEG/TIFF,
require_supported gate, PDF/TIFF/text page counts, 101-page PDF ->
IX_000_006, multi-file file_index assignment.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-18 11:12:00 +02:00
.forgejo/workflows ci: run on every push (not just main) so feat branches also get CI 2026-04-18 10:40:44 +02:00
docs Implementation plan for ix MVP 2026-04-18 10:34:30 +02:00
src/ix feat(ingestion): fetch_file + MIME sniff + DocumentIngestor (spec §6.1) 2026-04-18 11:12:00 +02:00
tests feat(ingestion): fetch_file + MIME sniff + DocumentIngestor (spec §6.1) 2026-04-18 11:12:00 +02:00
.env.example feat(scaffold): project skeleton with uv + pytest + forgejo CI 2026-04-18 10:36:43 +02:00
.gitignore feat(scaffold): project skeleton with uv + pytest + forgejo CI 2026-04-18 10:36:43 +02:00
.python-version feat(scaffold): project skeleton with uv + pytest + forgejo CI 2026-04-18 10:36:43 +02:00
AGENTS.md Initial design: on-prem LLM extraction microservice MVP 2026-04-18 10:23:17 +02:00
pyproject.toml feat(scaffold): project skeleton with uv + pytest + forgejo CI 2026-04-18 10:36:43 +02:00
README.md Initial design: on-prem LLM extraction microservice MVP 2026-04-18 10:23:17 +02:00
uv.lock feat(scaffold): project skeleton with uv + pytest + forgejo CI 2026-04-18 10:36:43 +02:00

InfoXtractor (ix)

Async, on-prem, LLM-powered structured information extraction microservice.

Given a document (PDF, image, text) and a named use case, ix returns a structured JSON result whose shape matches the use-case schema — together with per-field provenance (OCR segment IDs, bounding boxes, cross-OCR agreement flags) that let the caller decide how much to trust each extracted value.

Status: design phase. Implementation about to start.

Principles

  • On-prem always. LLM = Ollama, OCR = local engines (Surya first). No OpenAI / Anthropic / Azure / AWS / cloud.
  • Grounded extraction, not DB truth. ix returns best-effort fields + provenance; the caller decides what to trust.
  • Transport-agnostic pipeline core. REST + Postgres-queue adapters in parallel on one job store.