STET■

flux-pr-1759

sqlparser-rs (Rust) · W1 · GPT-5.1 Codex Mini

graphql-go-tools (Go)sqlparser-rs (Rust)Zod (TypeScript)
W2W1
|
GPT-5.1 Codex Mini
fail_guardrail

Tests: unknown. 0/1 commands passed. Strength: missing.

100.0% run pass rate
Tier 1
guardrail preflight failedprimary equivalenceunknownnon equivalentneeds generated testsweak signal riskall commands ignoredunknown no gold pass commands
env PATH=/root/.cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin cargo test --all-features
gold unknownagent —

Partial score: 0/0

Publishable: noWeak signal risk: yes

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.

agent.patch
validation
Validation recorded
#2
validation
equivalence
Equivalence judgment
#3

non_equivalent

validation
code review
Code review judgment
#4

fail

validation
decision
Final decision
#5

fail_guardrail

validation

Quality

equivalence
non_equivalent
87% confidence
code review
fail · 25/100
4 findings
footprint
low (0.22)
behavioral
—
cost
—

Equivalence Reasoning

behavioral

The patch recognizes `|>` and can parse pipe chains, but it does not implement operator-specific parsing/AST for BigQuery pipe operators (e.g., `WHERE`, `LIMIT`, `AGGREGATE`, etc.) as intended. It stores each pipe stage as raw tokens in `SetExpr::Pipe`, which changes behavior/AST shape significantly (and likely formatting), rather than adding structured pipe operators on `Query` with typed semantics.

Code Review

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

The patch likely does not satisfy the intended change: it tokenizes and accepts `|>` but implements pipe syntax as opaque token chunks with a new `SetExpr::Pipe` wrapper rather than structured BigQuery pipe operators integrated at query level.

4 findings
Pipe operators are not parsed into semantic operator AST
major

Each pipe stage is stored as raw tokens instead of parsed operator-specific structures (e.g., `WHERE`, `LIMIT/OFFSET`, `AGGREGATE`, `ORDER BY`), so intended BigQuery pipe support is only superficial.

app/src/parser/mod.rs:10904
AST shape differs from expected query-level pipe representation
major

Pipes are represented as `SetExpr::Pipe` wrapping the body, rather than query-level pipe operators. This can break compatibility with expected query fields and behavior for downstream consumers.

app/src/ast/query.rs:169
Pipe stage body is delimiter-scanned instead of grammar-validated
major

The parser consumes tokens until top-level `|>`, `;`, or EOF, which can accept malformed operators and weakens error quality and boundary handling.

app/src/parser/mod.rs:10935
New dialect capability name diverges from intended API
minor

The patch introduces `supports_pipe_syntax()` rather than a `supports_pipe_operator()` capability, creating avoidable API drift and potential integration confusion.

app/src/dialect/mod.rs:518
Evidencevalidation (155.6 KB)results (55.9 KB)run_metadata (1.6 KB)agent_patch (10.6 KB)summary (90.8 KB)manifest (475 B)