STET

flux-pr-4680

Zod (TypeScript) · W2 · GPT-5.3 Codex

pass_with_warn

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

69.2% run pass rate
Tier 1
primary testspasseddecision conflictnon equivalentfail
pnpm build
gold passagent pass
find . -name vitest.config.ts -exec sed -i 's/test: {/test: { testTimeout: 30000,/' {} +
gold passagent pass
pnpm test -- --maxWorkers 1 --maxConcurrency 1 --retry 2
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

non_equivalent

code review
Code review judgment
#4

fail

decision
Final decision
#5

pass_with_warn

Quality

equivalence
non_equivalent
90% confidence
code review
fail
3 findings
footprint
low (0.22)
behavioral
100.0%
cost
$3.58 · 1.3M

Equivalence Reasoning

behavioral

The patch implements optional seconds and named `TimePrecision`, but it does not align with the intended offset behavior: `datetime({ offset: true })` still accepts basic offsets (`+02`, `+0200`) and, after removing normalization logic, returns them unnormalized. The intended change is to clearly enforce/document specific accepted offset/local combinations and precision behavior consistently; this offset handling remains functionally different.

Code Review

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

The patch partially advances precision handling, but it likely does not satisfy the intended datetime offset constraints: it keeps and documents permissive non-normalized offset formats and removes canonicalizing behavior, so intended validation/documentation alignment is not fully met.

3 findings
Offset formats remain too permissive (`+02`, `+0200`)
major

The patch still treats short/basic offsets as valid and updates docs/tests accordingly, but the intended behavior is to clarify/enforce supported combinations and normalized offsets. Accepting multiple non-normalized forms weakens that contract.

packages/docs/content/api.mdx:368
Datetime offset normalization was removed without compensating strict validation
major

The normalization logic was deleted, and tests now assert raw `+02`/`+0200` outputs. This increases risk of inconsistent downstream handling versus a single canonical offset representation.

packages/zod/src/v4/core/schemas.ts:604
Documentation now encodes the permissive offset edge cases as intended behavior
major

The API docs explicitly mark `+02` and `+0200` as valid. This locks in ambiguous edge-case acceptance and conflicts with a stricter, clearer format contract for ISO datetime offsets.

packages/docs/content/api.mdx:368