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fix(llm): per-model protocol bindings for OpenCode Zen/Go presets - #394
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The presets mapped both OpenCode gateways to LLMProvider.Anthropic with a single AnthropicMessages binding, but neither gateway is Anthropic-only: - Go serves /responses (grok-4.6, gpt-5.6-luna) and /chat/completions - Zen is per-model: claude-* -> messages, gpt-*/grok-* -> responses, gemini-* -> Google, everything else -> chat completions - LlmProviderPreset gains optional Bindings + ModelBindingRules (prefix -> binding) and CatalogIsEntitlement to mark subscription gateways - preset creation builds the extra bindings and assigns seeded models to the protocol matched by their name; Zen stays pay-per-token (no auto-seeded models) - Go seeds the official model list and refreshes its catalog add-only from /models, assigning discovered models through the same rules - AnthropicMessagesTransport applies x-opencode-session (per-chat when known), fixing Go's 400 MissingSessionID on the Anthropic-compatible path - IEditLLMConfHelper: EnsureBinding + AssignModelBinding helpers - Tests: LlmProviderCatalogTests, AnthropicTransportSessionTests, preset flow
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This was referenced Sep 16, 2026
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Resolve #395 conflicts after #393/#394 were squash-merged: - LlmProviderCatalog / IEditLLMConfHelper / EditLLMConfHelper / EditLLMConfTest: keep the branch side (step 2 + step 3/4 content is the superset) - GeneralBootstrap: keep master's startup catalog refresh (#393) and re-add the providers.json source log from step 3 Validated after merge: build 0 errors; LLM.Test 310/310; main tests 455 passed / 1 skipped
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Why
opencode-zen/opencode-gopresets mapped both gateways toLLMProvider.Anthropicwith oneAnthropicMessagesbinding. Neither gateway is Anthropic-only:https://opencode.ai/zen/go/v1) serves/responses(grok-4.6, gpt-5.6-luna) and/chat/completions(glm/kimi/deepseek/longcat/minimax/qwen/mimo) — no Anthropic endpoint at allhttps://opencode.ai/zen/v1) is per-model:claude-*→ messages,gpt-*/grok-*→ responses,gemini-*→ Google, everything else → chat completionsAs written, a Go preset channel sent Anthropic wire format to an OpenAI-only gateway, and even the Anthropic-compatible path was missing
x-opencode-session(the 400 MissingSessionID that #389 fixed for the OpenAI paths).What
LlmProviderPresetgains optionalBindings+ModelBindingRules(prefix → binding) andCatalogIsEntitlement(subscription gateways whose catalog is the entitlement).EnsureBinding) and assigns each seeded model to the protocol matched by its name (AssignModelBinding). Zen stays pay-per-token: no auto-seeded models, manual rows untouched./modelsadd-only (no soft-deletes), binding discovered models through the same rules.AnthropicMessagesTransportnow appliesx-opencode-session(per-chat when known, otherwise the global session) — Go's Anthropic-compatible requests no longer fail.IEditLLMConfHelper:EnsureBinding,AssignModelBinding.Validation
dotnet build TelegramSearchBot.sln -c Release→ 0 errorsTelegramSearchBot.LLM.Test→ 294/294 (new:LlmProviderCatalogTests,AnthropicTransportSessionTests)TelegramSearchBot.Test→ 446 passed, 1 skipped (new preset flow test)Notes