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fix: drop displayName from getLanguageModelKey to fix MCP model selection #1408

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fix: drop displayName from getLanguageModelKey to fix MCP model selection #1408

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f6bf02b
fix: drop displayName from getLanguageModelKey to fix MCP model selec…
salarkhannn Jul 1, 2026
3719f83
fix: link CHANGELOG entry to PR #1408 instead of issue
salarkhannn Jul 1, 2026
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -27,6 +27,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Passed Zoekt index parameters via argv to preserve revision names with punctuation. [#1376](https://github.com/sourcebot-dev/sourcebot/pull/1376)
- [EE] Validated OAuth bearer token scopes before allowing access to the Sourcebot MCP resource server. [#1396](https://github.com/sourcebot-dev/sourcebot/pull/1396)
- Added HTTP security headers to all web app responses. [#1407](https://github.com/sourcebot-dev/sourcebot/pull/1407)
- Dropped `displayName` from `getLanguageModelKey` so the MCP `ask_codebase` tool matches models by `provider` + `model` only, fixing `400 Language model not configured` when an explicit model is selected. [#1408](https://github.com/sourcebot-dev/sourcebot/pull/1408)

## [5.0.4] - 2026-06-18

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4 changes: 2 additions & 2 deletions packages/web/src/features/chat/utils.ts
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Expand Up @@ -487,8 +487,8 @@ export const getAnswerPartFromAssistantMessage = (message: SBChatMessage, isTurn
* identifying fields, so both the full `LanguageModel` config and the
* client-safe `LanguageModelInfo` can be keyed with it.
*/
export const getLanguageModelKey = (model: Pick<LanguageModelInfo, 'provider' | 'model' | 'displayName'>) => {
return `${model.provider}-${model.model}-${model.displayName}`;
export const getLanguageModelKey = (model: Pick<LanguageModelInfo, 'provider' | 'model'>) => {
return `${model.provider}-${model.model}`;
}

/**
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