Files
gitmost/apps/server
claude_code 549fc611aa fix(ai-chat): model-friendly tool-input validation errors (#190)
When the in-app AI chat issued a parallel batch of tool calls, the model
sometimes dropped a required parameter (typically a repeated `pageId`). zod
rejected it and the AI SDK surfaced the raw zod text
("Invalid input: expected string, received undefined") to the model, which is
not actionable — so it could not reliably retry.

Add a centralized `modelFriendlyInput(shape)` wrapper for in-app tool input
schemas:
- the model-facing JSON schema is derived from the SAME zod shape via
  `z.toJSONSchema(z.object(shape), { target: 'draft-7' })`, so `required`,
  `description` and field constraints are unchanged (contract preserved);
- on a validation failure `validate` returns a human-readable Error naming the
  offending parameter(s) plus a fixed retry hint ("Include every REQUIRED
  parameter ... do not drop ids like pageId"), which the SDK relays to the model
  via InvalidToolInputError;
- on success it returns the parsed (unknown-key-stripped) data, preserving the
  existing strip guardrails (deletePage never forwards permanentlyDelete/
  forceDelete; transformPage never forwards deleteComments).

Applied in ai-chat-tools.service.ts (the sharedTool builder + every inline
tool inputSchema) and in public-share-chat-tools.service.ts. Values are never
guessed and the required/optional contract is untouched.

Tests: new model-friendly-input.spec.ts (friendly message names the param +
hint; unknown keys stripped; JSON schema keeps required/description); the two
.parse()-based guardrail tests reworked to assert via the new validate path.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-25 22:30:24 +03:00
..
2024-06-07 17:29:34 +01:00
2024-06-07 17:29:34 +01:00
2024-01-09 18:58:26 +01:00
2024-12-09 14:51:31 +00:00
2024-01-09 18:58:26 +01:00
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2025-03-06 13:38:37 +00:00

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A progressive Node.js framework for building efficient and scalable server-side applications.

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Nest framework TypeScript starter repository.

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