Force every LLM stage onto DeepSeek and stop Anthropic Console uploads.

PROVIDER_*=anthropic and Claude fallbacks now coerce to DeepSeek, skills stay local, and default_model_version bumps without upload_skills.py.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/.env.example

@@ -26,17 +26,12 @@ DEEPSEEK_REASONING_EFFORT=high
 
 # -- AI provider routing -----------------------------------------------------
 # Default provider for every stage; per-stage env vars override.
-# Valid values: deepseek | anthropic | gemini
+# Valid values: deepseek | gemini  (anthropic is ignored and coerced to deepseek)
 PROVIDER_DEFAULT=deepseek
 # PROVIDER_VALIDATION=deepseek
 # PROVIDER_AUTO_RESOLVE=deepseek
 
-# -- Anthropic (optional fallback) -------------------------------------------
-# ANTHROPIC_API_KEY=sk-ant-...
-# ANTHROPIC_MODEL=claude-sonnet-4-6
-# MODEL_PINTABLE=
-# MODEL_PATTERN=
-# MODEL_VALIDATION=
+# Anthropic is not used. Do not set ANTHROPIC_API_KEY.
 
 # -- Gemini (optional) -------------------------------------------------------
 # GEMINI_API_KEY=
@@ -44,10 +39,9 @@ PROVIDER_DEFAULT=deepseek
 # MODEL_VALIDATION_GEMINI=
 
 # -- Per-stage fallback ------------------------------------------------------
-# If set, the stage retries once with FALLBACK_PROVIDER_<STAGE> /
-# FALLBACK_MODEL_<STAGE> when the primary provider raises.
-# FALLBACK_PROVIDER_VALIDATION=anthropic
-# FALLBACK_MODEL_VALIDATION=claude-sonnet-4-6
+# If set, the stage retries once. Anthropic is ignored (DeepSeek only).
+# FALLBACK_PROVIDER_VALIDATION=deepseek
+# FALLBACK_MODEL_VALIDATION=deepseek-flash
 
 # -- Storage -----------------------------------------------------------------
 # Set GCS_BUCKET to store projects/library in Google Cloud Storage.

backend/config.py

@@ -220,9 +220,16 @@ class Settings(BaseSettings):
         return bool(self.email_sender and self.email_frontend_url)
 
     def provider_for_stage(self, stage: str) -> str:
-        """Return the LLM provider name for a pipeline stage."""
+        """Return the LLM provider name for a pipeline stage.
+
+        Anthropic is never used: any ``PROVIDER_*=anthropic`` override is
+        coerced to DeepSeek.
+        """
         override = getattr(self, f"provider_{stage}", "")
-        return override or self.provider_default
+        name = override or self.provider_default
+        if name == "anthropic":
+            return "deepseek"
+        return name
 
     def model_for_stage(self, stage: str) -> str:
         """Return the model for a pipeline stage, provider-aware.
@@ -247,7 +254,7 @@ class Settings(BaseSettings):
         when the primary provider raises.
         """
         fb_provider = getattr(self, f"fallback_provider_{stage}", "")
-        if not fb_provider:
+        if not fb_provider or fb_provider == "anthropic":
             return None
         fb_model = getattr(self, f"fallback_model_{stage}", "")
         if not fb_model:
@@ -269,15 +276,13 @@ class Settings(BaseSettings):
     def has_llm_credentials(self) -> bool:
         """True if the configured default provider has an API key."""
         name = self.provider_default
+        if name == "anthropic":
+            name = "deepseek"
         if name == "deepseek":
             return bool(self.deepseek_api_key)
         if name == "gemini":
             return bool(self.gemini_api_key)
-        if name == "anthropic":
-            return bool(self.anthropic_api_key)
-        return bool(
-            self.deepseek_api_key or self.anthropic_api_key or self.gemini_api_key
-        )
+        return bool(self.deepseek_api_key)
 
     def get_skill_or_none(self, name: str) -> tuple[str | None, str | None]:
         """Return (skill_id, version) or (None, None) if the Anthropic

backend/services/extraction.py

@@ -5,8 +5,7 @@ Ports the extraction steps from run_pipeline.py to async:
   - extract_pattern: Passive MPN pattern
   - extract_specs: Component specs (discrete, connectors, crystals, etc.)
 
-Skills (SKILL.md + validate.py) run locally for DeepSeek/Gemini. Anthropic
-can still use Console Skills when a skill_id is in skills_manifest.json.
+Skills (SKILL.md + validate.py) run locally against DeepSeek. Do not use Anthropic Console Skills.
 """
 
 from __future__ import annotations

backend/services/llm/factory.py

@@ -24,8 +24,9 @@ def get_provider_by_name(name: str) -> LLMProvider:
         from backend.services.llm.deepseek_provider import DeepSeekProvider
         return DeepSeekProvider()
     if name == "anthropic":
-        from backend.services.llm.anthropic_provider import AnthropicProvider
-        return AnthropicProvider()
+        log.warning("Anthropic is disabled — using DeepSeek instead")
+        from backend.services.llm.deepseek_provider import DeepSeekProvider
+        return DeepSeekProvider()
     if name == "gemini":
         from backend.services.llm.gemini_provider import GeminiProvider
         return GeminiProvider()

backend/skills_manifest.json

@@ -1,5 +1,5 @@
 {
-  "default_model_version": "1.7.0",
+  "default_model_version": "1.8.0",
   "extract-pintable": {
     "skill_id": "skill_01VMWPZuvuZAe4LmLbmsNWNY",
     "latest_version": "1784798970179642",