fix(tanstack-ai): avoid duplicate tool call ids#424
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threepointone merged 4 commits intomainfrom Mar 18, 2026
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🦋 Changeset detectedLatest commit: 60dd5db The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
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- Change generateId to use 'chatcmpl' prefix and truncated UUID format - Generate unique IDs per tool call index instead of trusting backend IDs - Track tool call state across chunks to ensure stable IDs in streaming - Update test assertions to expect 'chatcmpl-' prefix instead of 'workers-ai-' - Change default test script to run once, add test:watch for watch mode
- Create ToolCallDisplay component with collapsible UI for tool calls - Show tool name, arguments, and results in formatted JSON - Add expand/collapse button with rotation animation - Match tool calls with their results using toolCallId - Skip rendering standalone tool-result parts (already shown in tool-call) - Style differently for user vs assistant messages - Add formatJson helper to pretty-print JSON strings
Stop forcing tool call IDs through a 9-char alphanumeric sanitization step used for Workers AI binding compatibility. The sanitizeToolCallId function and its uses were removed; IDs are now passed through as-provided, and generated fallback IDs are derived per tool-call index (e.g. `call${streamId}${tcIndex}`) to avoid duplicates. Tests and E2E expectations were updated to reflect the new behavior. Also removed a stray console.log in the example and re-enabled a commented provider entry; the changeset message was updated to explain the ID-generation change.
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Previously, all tool call ids were
chatcmplt, which made new tool call requests and responses get appended to previous parts. This fixes it so all tool calls have unique tool call ids, same as workers-ai-provider.