Native DeepSeek datasheet extraction in periscope/src (Fase C3).

Pipeline and LCSC resolve call datasheet_extract; inherited extraction.py
stays in dependency as fallback. No Anthropic Console skill ids.

periscope/dependency/backend/routers/projects.py

@@ -906,7 +906,7 @@ async def auto_resolve(req: AutoResolveRequest, request: Request):
     import asyncio
 
     from backend.services.digikey import fetch_params
-    from backend.services.extraction import CatalogResolveMiss, auto_resolve_specs
+    from backend.services.datasheet_extract import CatalogResolveMiss, auto_resolve_specs
 
     if not settings.use_digikey:
         raise HTTPException(400, "DigiKey API not configured")
@@ -996,7 +996,7 @@ async def lcsc_resolve_passive(
 
     from backend.services.api_logs import ApiLogger
     from backend.services.billing_hook import InsufficientCredits, get_billing
-    from backend.services.extraction import auto_resolve_specs
+    from backend.services.datasheet_extract import auto_resolve_specs
 
     storage = get_storage(request)
     result = proj_svc.resolve_project_access(storage, get_user_id(request), project_id)

periscope/dependency/backend/services/extraction.py

@@ -1,11 +1,12 @@
-"""Async datasheet extraction using the configured LLM provider.
+"""Inherited PinScope datasheet extraction (fallback, not the live pipeline).
+
+Live path since 2.40.0: ``backend.services.datasheet_extract``. This file
+stays in periscope/dependency/ — do not empty-delete it.
 
 Ports the extraction steps from run_pipeline.py to async:
   - extract_pintable: Pin table + package info + taxonomy assignment
   - extract_pattern: Passive MPN pattern
   - extract_specs: Component specs (discrete, connectors, crystals, etc.)
-
-Skills (SKILL.md + validate.py) run locally against DeepSeek. Do not use Anthropic Console Skills.
 """
 
 from __future__ import annotations

periscope/dependency/backend/services/pipeline.py

@@ -47,7 +47,7 @@ from backend.config import settings
 from backend.services import admin_settings as settings_svc
 from backend.services.billing_hook import InsufficientCredits, get_billing
 from backend.services.datasheet_store import compute_md5_from_path, store_datasheet, store_datasheet_bytes
-from backend.services import extraction, projects as proj_svc
+from backend.services import datasheet_extract as extraction, projects as proj_svc
 from backend.services.api_logs import ApiLogger, total_cost
 from backend.services.cost_estimator import estimate_stage_cost_usd
 from backend.services.storage import StorageBackend

periscope/dependency/frontend/content/changelog.md

@@ -2,6 +2,13 @@
 
 What's new in Periscope.
 
+## 2.40.0 — 2026-09-20 — Fase C3: native datasheet extraction
+
+Pipeline pintable/pattern/specs/auto-resolve run from `periscope/src` (`datasheet_extract.py`): DeepSeek + local SKILL.md, no Anthropic Console skill ids. Inherited `extraction.py` stays in `dependency/`.
+
+- [Changed] `pipeline.py` and project LCSC resolve import `datasheet_extract`.
+- [Changed] Extract stages pin the DeepSeek provider.
+
 ## 2.39.1 — 2026-09-20 — src no longer imports PinScope review loop
 
 After 2.39.0 live smoke (Emmaforo ERROR 2 / WARNING 12 / INFO 18), native modules are the only review path from `periscope/src`. PinScope `validate.py` / `validation_tools.py` remain on disk.

periscope/src/docs/development/PINSCOPE_INDEPENDENCE_PLAN.md

@@ -1,6 +1,6 @@
 # Piano — indipendenza architettonica e di licenza da PinScope
 
-**Stato:** split **2.38.0**. C2 native review loop **2.39.0** live. **2.39.1** `periscope/src` non importa più `validate.py` / `validation_tools.py` (PCB incluso). File PinScope restano in `dependency/`. Fork non staccato.  
+**Stato:** split **2.38.0**. C2 review **2.39.0/2.39.1** live. C3 extraction **2.40.0**. `validate.py` / `extraction.py` restano in `dependency/` (non chiamati dal live path). Fork non staccato.  
 **Gate Michele:** sostituire/smettere di chiamare un modulo `dependency/` solo dopo pytest + deploy smoke. Se la verifica fallisce, resta il path ereditato.  
 **Sequenza:** split → sostituzione incrementale (C2 loop → C3 extraction → C4 PCB off `validate.py`). **Mai** empty-delete. Parsers/graph (C5/E) e auto-place fuori scope. AGPL resta.
 
@@ -225,7 +225,7 @@ Qui sì si riscrive l’engine ereditato. Ordine interno:
 | C0 | Spec freeze `motore-finding.md` = unico IR | Già nativo; non diluire in `validate.py` |
 | C1 | Adapter: `validate.py` emette solo `Finding` grezzi → `complete_finding` | Già parziale; chiudere i campi doppi |
 | C2 | **REWRITE** loop per-IC native in `periscope/src` (DeepSeek, tools su `DesignGraph`) | **Shipped 2.39.0** live `review_ic_async` → `review_session`; PinScope files **kept**, not called from live loop |
-| C3 | Extraction: `local_skill.py` + schemi JSON (KEEP schema se identici; REWRITE orchestrazione Anthropic) | |
+| C3 | Extraction: `local_skill.py` + schemi JSON (KEEP schema se identici; REWRITE orchestrazione Anthropic) | **Shipped 2.40.0** live `datasheet_extract`; PinScope `extraction.py` kept |
 | C4 | Spegnere import da `validate.py` nel PCB (`_parse_review` → parser finding nativo) | **Shipped 2.39.1** `pcb_validation` → `review_parse` / `review_session` |
 | C5 | Test golden `simple_project` + Emmaforo: parity FACT/REQUIREMENT, non parity prose | |
 

tests/test_native_datasheet_extract.py

@@ -0,0 +1,31 @@
+"""Native datasheet_extract vs inherited extraction — prove before switching pipeline."""
+
+from __future__ import annotations
+
+import ast
+from pathlib import Path
+
+from backend.services.datasheet_extract import _coerce_abs_max
+from backend.services.extraction import _coerce_abs_max as inherited_coerce
+
+
+def test_coerce_abs_max_matches_inherited():
+    raw = [
+        {"parameter": "Vin", "min": 0, "max": 6, "unit": "V", "source_page": 4},
+        "not-a-dict",
+    ]
+    assert _coerce_abs_max(raw) == inherited_coerce(raw)
+    assert _coerce_abs_max(None) == inherited_coerce(None)
+
+
+def test_native_extract_has_no_anthropic_import():
+    path = Path(__import__("backend.services.datasheet_extract", fromlist=["x"]).__file__)
+    tree = ast.parse(path.read_text())
+    imported = []
+    for node in ast.walk(tree):
+        if isinstance(node, ast.ImportFrom) and node.module:
+            imported.append(node.module)
+        elif isinstance(node, ast.Import):
+            imported.extend(a.name for a in node.names)
+    assert not any("anthropic" in (m or "") for m in imported)
+    assert "backend.services.llm.factory" in imported

tests/test_passive_from_distributor.py

@@ -86,12 +86,12 @@ def test_auto_resolve_skips_llm_when_catalog_parses(monkeypatch):
     import asyncio
     from pathlib import Path
 
-    from backend.services.extraction import auto_resolve_specs
+    from backend.services.datasheet_extract import auto_resolve_specs
 
     async def boom(*_a, **_k):
         raise AssertionError("LLM must not run")
 
-    monkeypatch.setattr("backend.services.extraction.call_with_fallback", boom)
+    monkeypatch.setattr("backend.services.datasheet_extract.call_with_fallback", boom)
     tax = TAXONOMY
     model = asyncio.run(
         auto_resolve_specs(
@@ -110,12 +110,12 @@ def test_auto_resolve_use_llm_false_on_ferrite(monkeypatch):
     import asyncio
     from pathlib import Path
 
-    from backend.services.extraction import auto_resolve_specs
+    from backend.services.datasheet_extract import auto_resolve_specs
 
     async def boom(*_a, **_k):
         raise AssertionError("LLM must not run")
 
-    monkeypatch.setattr("backend.services.extraction.call_with_fallback", boom)
+    monkeypatch.setattr("backend.services.datasheet_extract.call_with_fallback", boom)
     tax = TAXONOMY
     model = asyncio.run(
         auto_resolve_specs(

tests/test_passive_from_value.py

@@ -52,12 +52,12 @@ def test_ambiguous_string_returns_none():
 
 
 def test_resolve_from_value_skips_llm_when_parseable(monkeypatch):
-    from backend.services.extraction import resolve_from_value
+    from backend.services.datasheet_extract import resolve_from_value
 
     async def boom(*_a, **_k):
         raise AssertionError("LLM must not run")
 
-    monkeypatch.setattr("backend.services.extraction.call_with_fallback", boom)
+    monkeypatch.setattr("backend.services.datasheet_extract.call_with_fallback", boom)
     tax = TAXONOMY
     model = asyncio.run(
         resolve_from_value(
@@ -71,12 +71,12 @@ def test_resolve_from_value_skips_llm_when_parseable(monkeypatch):
 
 
 def test_resolve_from_value_placeholder_no_llm(monkeypatch):
-    from backend.services.extraction import resolve_from_value
+    from backend.services.datasheet_extract import resolve_from_value
 
     async def boom(*_a, **_k):
         raise AssertionError("LLM must not run")
 
-    monkeypatch.setattr("backend.services.extraction.call_with_fallback", boom)
+    monkeypatch.setattr("backend.services.datasheet_extract.call_with_fallback", boom)
     tax = TAXONOMY
     with pytest.raises(ValueError, match="Placeholder"):
         asyncio.run(

tests/test_pdf_ingest.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 
 from pathlib import Path
 
-from backend.services.extraction import _coerce_abs_max
+from backend.services.datasheet_extract import _coerce_abs_max
 from backend.services.llm.pdf_ingest import (
     extract_pdf_text,
     make_text_pdf,

tests/test_purple_parts_resolver.py

@@ -452,7 +452,7 @@ async def test_lcsc_resolve_passive_success_and_cached(tmp_path, monkeypatch):
     from backend.config import settings
     from backend.periscopex.models import CapacitorSpecs, ComponentModel
     from backend.services import purple_parts
-    from backend.services import extraction as extraction_svc
+    from backend.services import datasheet_extract as extraction_svc
 
     # Billing modules are absent in the open-source repo; the endpoint under
     # test only charges when billing is enabled, so skip there.