STET

flux-pr-3850

Zod (TypeScript) · W2 · GPT-5.1 Codex Mini

pass_with_warn

Tests passed. 3/3 commands passed. Strength: strong.

61.5% run pass rate
Tier 1
primary testspassedequivalentfail
yarn build
gold passagent pass
find . -name vitest.config.ts -exec sed -i 's/test: {/test: { testTimeout: 30000,/' {} +
gold passagent pass
yarn test
gold passagent pass

Partial score: 3/3

Publishable: yesCache: miss

Trajectory

unknown · partial order only

Canonical trajectory missing; showing coarse derived order only.

patch written
Patch captured
#1

Stet captured agent.patch for this trial.

validation
Tests passed
#2
equivalence
Equivalence judgment
#3

equivalent

code review
Code review judgment
#4

fail

decision
Final decision
#5

pass_with_warn

Quality

equivalence
equivalent
84% confidence
code review
fail
3 findings
footprint
low (0.33)
behavioral
100.0%
cost
$1.43 · 3.3M

Equivalence Reasoning

stylistic

The agent patch implements the intended Standard Schema support: it adds `~standard` metadata (`version`, `vendor`, `validate`), wires `ZodType` to implement the interface, returns standardized success/failure results, and falls back to async parsing when sync parsing encounters async behavior. It differs structurally from the gold patch (broader type definitions, exports, and option/type extras), but the core behavior requested by the task is present.

Code Review

correctness: 1/4introduced bug risk: 1/4edge case handling: 2/4maintainability idioms: 1/4

The patch partially addresses the goal but likely does not satisfy the intended change cleanly: it over-expands the spec surface, diverges from the expected Standard Schema contract, and introduces validation result logic that is less robust than status-based handling.

3 findings
Standard Schema contract diverges from intended shape
major

The new `StandardSchemaV1` definition adds optional validation options and is wrapped in broader custom `StandardTypedV1`/`StandardJSONSchemaV1` abstractions, rather than implementing the expected minimal Standard Schema interface directly. This can break compatibility with consumers expecting the task’s targeted contract.

src/standard-schema.ts:1
Validation result generation is not guarded by parse validity status
major

`_standardResult` returns `{ value: result.value }` whenever `ctx.common.issues` is empty, without checking parse status via existing validity helpers. If parse status is invalid/aborted without populated issues in edge paths, output can be malformed.

src/types.ts:266
Runtime `types` metadata is populated with placeholder undefined values
minor

The `~standard.types` field is assigned runtime placeholders (`undefined as Input/Output`), which do not provide real metadata and may confuse downstream consumers inspecting runtime objects.

src/types.ts:470