fix: tweak the arg shapes to improve tool accuracy #381
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nirinchev
commented
Jul 17, 2025
| .optional() | ||
| .describe("The projection, matching the syntax of the projection argument of db.collection.find()"), | ||
| limit: z.number().optional().default(10).describe("The maximum number of documents to return"), | ||
| sort: z | ||
| .record(z.string(), z.custom<SortDirection>()) | ||
| .object({}) | ||
| .catchall(z.custom<SortDirection>()) |
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This, unfortunately, doesn't correctly set the type for additionalProperties in the JSON schema. This is the reason I had to update the tool description to be extra verbose.
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Proposed changes
The core fix here is moving away from
z.recordand using a plainz.object({}).passthrough(). The test changes are fixes to what seems to have been copy-paste errors where the prompt and the expectations were mismatched.Checklist