fix: preserve tool approval signatures when approvals are responded

[lgrammel]

Background

Tool approvals signed via experimental_toolApprovalSecret lost their signature when moving from approval-requested to approval-responded, causing resumed requests to fail signature validation with a missing signature error.

Summary

Updated manual chat approval responses and streamed tool approval responses to carry forward an existing approval.signature while preserving existing approval metadata.

Testing

Added regression coverage for manual addToolApprovalResponse and streamed tool-approval-response transitions to assert approval signatures remain on the responded approval state.

Related Issues

Fixes #16543

[github-actions]

🚀 Published in:

Package	Version
ai	7.0.19 github npm
@ai-sdk/alibaba	2.0.9 github npm
@ai-sdk/amazon-bedrock	5.0.15 github npm
@ai-sdk/angular	3.0.19 github npm
@ai-sdk/anthropic	4.0.11 github npm
@ai-sdk/anthropic-aws	2.0.3 github npm
@ai-sdk/assemblyai	3.0.7 github npm
@ai-sdk/azure	4.0.10 github npm
@ai-sdk/baseten	2.0.7 github npm
@ai-sdk/black-forest-labs	2.0.7 github npm
@ai-sdk/bytedance	2.0.8 github npm
@ai-sdk/cerebras	3.0.7 github npm
@ai-sdk/cohere	4.0.7 github npm
@ai-sdk/deepgram	3.0.7 github npm
@ai-sdk/deepinfra	3.0.7 github npm
@ai-sdk/deepseek	3.0.7 github npm
@ai-sdk/devtools	1.0.3 github npm
@ai-sdk/elevenlabs	3.0.8 github npm
@ai-sdk/fal	3.0.8 github npm
@ai-sdk/fireworks	3.0.8 github npm
@ai-sdk/gateway	4.0.15 github npm
@ai-sdk/gladia	3.0.7 github npm
@ai-sdk/google	4.0.11 github npm
@ai-sdk/google-vertex	5.0.14 github npm
@ai-sdk/groq	4.0.7 github npm
@ai-sdk/harness	1.0.22 github npm
@ai-sdk/harness-claude-code	1.0.22 github npm
@ai-sdk/harness-codex	1.0.23 github npm
@ai-sdk/harness-deepagents	1.0.21 github npm
@ai-sdk/harness-opencode	1.0.22 github npm
@ai-sdk/harness-pi	1.0.22 github npm
@ai-sdk/huggingface	2.0.7 github npm
@ai-sdk/hume	3.0.7 github npm
@ai-sdk/klingai	4.0.8 github npm
@ai-sdk/langchain	3.0.19 github npm
@ai-sdk/llamaindex	3.0.19 github npm
@ai-sdk/lmnt	3.0.7 github npm
@ai-sdk/luma	3.0.8 github npm
@ai-sdk/mcp	2.0.10 github npm
@ai-sdk/mistral	4.0.8 github npm
@ai-sdk/moonshotai	3.0.9 github npm
@ai-sdk/open-responses	2.0.7 github npm
@ai-sdk/openai	4.0.10 github npm
@ai-sdk/openai-compatible	3.0.7 github npm
@ai-sdk/otel	1.0.19 github npm
@ai-sdk/perplexity	4.0.8 github npm
@ai-sdk/policy-opa	1.0.19 github npm
@ai-sdk/prodia	2.0.8 github npm
@ai-sdk/provider	4.0.3 github npm
@ai-sdk/provider-utils	5.0.7 github npm
@ai-sdk/quiverai	2.0.7 github npm
@ai-sdk/react	4.0.20 github npm
@ai-sdk/replicate	3.0.8 github npm
@ai-sdk/revai	3.0.7 github npm
@ai-sdk/rsc	3.0.19 github npm
@ai-sdk/sandbox-just-bash	1.0.22 github npm
@ai-sdk/sandbox-vercel	1.0.22 github npm
@ai-sdk/svelte	5.0.19 github npm
@ai-sdk/togetherai	3.0.8 github npm
@ai-sdk/tui	1.0.19 github npm
@ai-sdk/valibot	3.0.7 github npm
@ai-sdk/vercel	3.0.7 github npm
@ai-sdk/voyage	2.0.7 github npm
@ai-sdk/vue	4.0.19 github npm
@ai-sdk/workflow	1.0.19 github npm
@ai-sdk/workflow-harness	1.0.22 github npm
@ai-sdk/xai	4.0.10 github npm