add deepseek specific prompting in aisdk #1455
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🦋 Changeset detectedLatest commit: e70aec0 The changes in this PR will be included in the next version bump. This PR includes changesets to release 3 packages
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This was referenced Dec 22, 2025
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Greptile SummaryAdded DeepSeek-specific prompting to the AI SDK client to address structured output formatting issues. When a DeepSeek model is detected, the code now appends an explicit user message containing the JSON schema and instructions to return only JSON without markdown formatting. Key Changes:
Minor Issues:
Confidence Score: 5/5
Important Files Changed
Sequence DiagramsequenceDiagram
participant Client as AISdkClient
participant Check as Model Detection
participant Schema as toJsonSchema
participant Messages as Message Array
participant SDK as generateObject (AI SDK)
Client->>Check: Check if modelId includes "deepseek"
alt DeepSeek Model Detected
Check->>Schema: Convert Zod schema to JSON
Schema-->>Check: Return JSON schema string
Check->>Messages: Append user message with schema + JSON-only instructions
Messages-->>Check: Updated messages array
end
Check->>SDK: Call generateObject with formatted messages
SDK-->>Client: Return structured object response
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Comment on lines
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| content: `Respond in this zod schema format:\n${parsedSchema}\n | ||
| You must respond in JSON format. respond WITH JSON. Do not include any other text, formatting or markdown in your output. Do not include \`\`\` or \`\`\`json in your response. Only the JSON object itself.`, | ||
| }); |
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style: text includes trailing newline that becomes part of prompt - format as single line or use template literal without newline before closing instruction
Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!
Prompt To Fix With AI
This is a comment left during a code review.
Path: packages/core/lib/v3/llm/aisdk.ts
Line: 158:160
Comment:
**style:** text includes trailing newline that becomes part of prompt - format as single line or use template literal without newline before closing instruction
<sub>Note: If this suggestion doesn't match your team's coding style, reply to this and let me know. I'll remember it for next time!</sub>
How can I resolve this? If you propose a fix, please make it concise.
miguelg719
approved these changes
Dec 22, 2025
Merged
This was referenced Dec 22, 2025
Contributor
|
@seanmcguire12 AISdkClient version that has DEEPSEEK bug was merged, so just upgrade this SDK version, |
This was referenced Dec 22, 2025
miguelg719
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Dec 27, 2025
This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @browserbasehq/[email protected] ### Patch Changes - [#1461](#1461) [`0f3991e`](0f3991e) Thanks [@tkattkat](https://github.com/tkattkat)! - Move hybrid mode out of experimental - [#1433](#1433) [`e0e22e0`](e0e22e0) Thanks [@tkattkat](https://github.com/tkattkat)! - Put hybrid mode behind experimental - [#1456](#1456) [`f261051`](f261051) Thanks [@shrey150](https://github.com/shrey150)! - Invoke page.hover for agent move action - [#1473](#1473) [`e021674`](e021674) Thanks [@shrey150](https://github.com/shrey150)! - Add safety confirmation support for OpenAI + Google CUA - [#1399](#1399) [`6a5496f`](6a5496f) Thanks [@tkattkat](https://github.com/tkattkat)! - Ensure cua agent is killed when stagehand.close is called - [#1436](#1436) [`fea1700`](fea1700) Thanks [@miguelg719](https://github.com/miguelg719)! - Fix auto-load key for act/extract/observe parametrized models on api - [#1439](#1439) [`5b288d9`](5b288d9) Thanks [@tkattkat](https://github.com/tkattkat)! - Remove base64 from agent actions array ( still present in messages object ) - [#1408](#1408) [`e822f5a`](e822f5a) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - allow for act() cache hit when variable values change - [#1472](#1472) [`638efc7`](638efc7) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix: agent cache not refreshed on action failure - [#1424](#1424) [`a890f16`](a890f16) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix: "Error: -32000 Failed to convert response to JSON: CBOR: stack limit exceeded" - [#1418](#1418) [`934f492`](934f492) Thanks [@miguelg719](https://github.com/miguelg719)! - Cleanup handlers and bus listeners on close - [#1430](#1430) [`bd2db92`](bd2db92) Thanks [@shrey150](https://github.com/shrey150)! - Fix CUA model coordinate translation - [#1465](#1465) [`51e0170`](51e0170) Thanks [@miguelg719](https://github.com/miguelg719)! - Add media resolution high provider option to gemini 3 hybrid agent - [#1431](#1431) [`05f5580`](05f5580) Thanks [@tkattkat](https://github.com/tkattkat)! - Update the cache handling for agent - [#1432](#1432) [`f56a9c2`](f56a9c2) Thanks [@tkattkat](https://github.com/tkattkat)! - Deprecate cua: true in favor of mode: "cua" - [#1406](#1406) [`b40ae11`](b40ae11) Thanks [@tkattkat](https://github.com/tkattkat)! - Add support for hovering with coordinates ( page.hover ) - [#1407](#1407) [`0d2b398`](0d2b398) Thanks [@tkattkat](https://github.com/tkattkat)! - Clean up page methods - [#1412](#1412) [`cd01f29`](cd01f29) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - fix: load GOOGLE_API_KEY from .env - [#1462](#1462) [`a734fca`](a734fca) Thanks [@shrey150](https://github.com/shrey150)! - fix: correctly pass userDataDir to chrome launcher - [#1466](#1466) [`b342acf`](b342acf) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - move playwright to optional dependencies - [#1440](#1440) [`2987cd1`](2987cd1) Thanks [@tkattkat](https://github.com/tkattkat)! - [Feature] support excluding tools from agent - [#1455](#1455) [`dfab1d5`](dfab1d5) Thanks [@seanmcguire12](https://github.com/seanmcguire12)! - update aisdk client to better enforce structured output with deepseek models - [#1428](#1428) [`4d71162`](4d71162) Thanks [@tkattkat](https://github.com/tkattkat)! - Add "hybrid" mode to stagehand agent ## @browserbasehq/[email protected] ### Minor Changes - [#1459](#1459) [`abb3469`](abb3469) Thanks [@monadoid](https://github.com/monadoid)! - Added building of binaries - [#1457](#1457) [`5fc1281`](5fc1281) Thanks [@monadoid](https://github.com/monadoid)! - First changeset for stagehand-server - [#1469](#1469) [`d634d45`](d634d45) Thanks [@monadoid](https://github.com/monadoid)! - Bump to test binary builds ### Patch Changes - Updated dependencies \[[`0f3991e`](0f3991e), [`e0e22e0`](e0e22e0), [`f261051`](f261051), [`e021674`](e021674), [`6a5496f`](6a5496f), [`fea1700`](fea1700), [`5b288d9`](5b288d9), [`e822f5a`](e822f5a), [`638efc7`](638efc7), [`a890f16`](a890f16), [`934f492`](934f492), [`bd2db92`](bd2db92), [`51e0170`](51e0170), [`05f5580`](05f5580), [`f56a9c2`](f56a9c2), [`b40ae11`](b40ae11), [`0d2b398`](0d2b398), [`cd01f29`](cd01f29), [`a734fca`](a734fca), [`b342acf`](b342acf), [`2987cd1`](2987cd1), [`dfab1d5`](dfab1d5), [`4d71162`](4d71162)]: - @browserbasehq/[email protected] ## @browserbasehq/[email protected] ### Patch Changes - [#1373](#1373) [`cadd192`](cadd192) Thanks [@tkattkat](https://github.com/tkattkat)! - Update screenshot collector in agent evals cli - Updated dependencies \[[`0f3991e`](0f3991e), [`e0e22e0`](e0e22e0), [`f261051`](f261051), [`e021674`](e021674), [`6a5496f`](6a5496f), [`fea1700`](fea1700), [`5b288d9`](5b288d9), [`e822f5a`](e822f5a), [`638efc7`](638efc7), [`a890f16`](a890f16), [`934f492`](934f492), [`bd2db92`](bd2db92), [`51e0170`](51e0170), [`05f5580`](05f5580), [`f56a9c2`](f56a9c2), [`b40ae11`](b40ae11), [`0d2b398`](0d2b398), [`cd01f29`](cd01f29), [`a734fca`](a734fca), [`b342acf`](b342acf), [`2987cd1`](2987cd1), [`dfab1d5`](dfab1d5), [`4d71162`](4d71162)]: - @browserbasehq/[email protected] Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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why
what changed
Summary by cubic
Added DeepSeek-specific prompt handling in the AISdk client to enforce strict JSON structured output. Converts the Zod schema to JSON Schema and injects a clear “JSON-only” instruction.
Written for commit e70aec0. Summary will update automatically on new commits.