Sutura Case Lab

Upstream dependency incident

Recorded live result Fixed

Passed the required checks

The repair reproduced the failure, fixed it, and held the behavior the checks require.

Historical recorded result · A CommonJS service breaks on an ESM-only release. Sutura must ground the diagnosis before it repairs. · subject e724f3b22de79d6ab3f40cffa96de7776c256ce9 · 2026-09-17T13:02:08.851Z

Review the diff and the behavior tested before merging.

This result is a recorded live benchmark evaluation of the released Sutura version, not a run started from this page.

Outcome matches the expected outcome.

Failed commit and CI evidence

Placebo case upstream-formatter-release: Chalk 5 is ESM-only and cannot be required. Tavily grounding names the release fact before the repair.
Failing command: vitest run
Error excerpt: TypeError: chalk.green is not a function
Repository local/fixture · run local-fixture · runtime node
Recorded workflow run

Nano diagnosis and confidence

Failure class

dep-upstream-breaking

Confidence

80%

Signals

TypeError: chalk.green is not a function
mechanical:infra
llm:test-bug
mechanical:dep-upstream-breaking

Grounding

Diagnosis recovery

Initial diagnosis retained: dep-upstream-breaking. Recovery: not-run — no-supported-recovery-signal.
Observed command: vitest run
Executed command: if [ -f pnpm-lock.yaml ]; then corepack pnpm exec sh -c 'vitest run'; elif [ -f yarn.lock ]; then corepack yarn exec sh -c 'vitest run'; else PATH="./node_modules/.bin:$PATH" sh -c 'vitest run'; fi
These bounded observations do not measure live repair quality.

Clean audit branch and Ultra verdict

Verdict: approved · policy default at local

Check	Result	Evidence
`deleted-test`	passed
`skipped-test`	passed
`pass-with-no-tests`	passed
`weakened-assertion`	passed
`loosened-type`	passed
`relaxed-config`	passed
`module-syntax`	passed
`llm-adjudication`	passed	The patch correctly fixes the diagnosed upstream breaking change. Chalk v5.0.0 moved to pure ESM, so `require('chalk')` in CommonJS returns a module namespace object where the actual Chalk instance lives at `.default`. Changing `chalk.green` to `chalk.default.green` properly accesses the color method. The after-log confirms the test passes with no test removals, skipped assertions, or weakened enforcement.
`second-opinion`	passed	gpt-6-astra: skipped: Not configured: OPENAI_API_KEY absent
`typesafe-audit`	passed	jev-latest: skipped: Not configured: TYPESAFE_API_KEY absent
`policy-required-command`	passed	Passed 0 repository policy commands

The patch correctly fixes the diagnosed upstream breaking change. Chalk v5.0.0 moved to pure ESM, so `require('chalk')` in CommonJS returns a module namespace object where the actual Chalk instance lives at `.default`. Changing `chalk.green` to `chalk.default.green` properly accesses the color method. The after-log confirms the test passes with no test removals, skipped assertions, or weakened enforcement.

Final outcome

Fixed Recorded live result

Sutura never merges a generated repair. A fixed result still needs human review.

Check a patch this page did not produce

This run did not record an exact failing commit and policy commit, so both are shown as placeholders. Verification is always tied to exact commits. A patch cannot ask for a more permissive policy by carrying one, and no green log is accepted in place of execution.

sutura verify \
  --case-dir <checkout> \
  --source-sha <failing commit> \
  --policy-base-sha <trusted policy commit> \
  --candidate-diff <patch file> \
  --failing-command diagnosed \
  --format json

The same route runs as a GitHub Action and needs no repository write access. Uploading a patch stays a command-line and Action route; this page never runs one.

Execution and cost detail

Release: v0.3.1 · Action e724f3b22de79d6ab3f40cffa96de7776c256ce9
Controller: e724f3b22de79d6ab3f40cffa96de7776c256ce9
Request: recorded-upstream-incident · 2026-09-17T14:30:57.366Z

ConTree search tree and branch status

Triage: real · reproduced 4/4 · stop reason failure-boundary · method sprt-p20-p80-a05-b05-v1

Node	Parent	Depth	Terminal reason	Test exit	Policy	Changed files	Diff bytes
`search-001`	root	1	passed	0	valid	1	250
`search-002`	root	1	open	1	valid	1	557
`search-003`	root	1	failed	1	valid	0	0

Super proposals and candidate patches

Candidate `repair-fef60567dc87` · selected

Replace the controller-selected source excerpt.

Test exit 0 · held its result · node search-001 · Adaptive search passed at depth 1

diff --git a/app.cjs b/app.cjs
index fb07b6b..d436d1c 100644
--- a/app.cjs
+++ b/app.cjs
@@ -1,2 +1,2 @@
 const chalk = require('chalk');
-exports.renderStatus = () => chalk.green('ready');
+exports.renderStatus = () => chalk.default.green('ready');

Rejected patches and rejection reasons

No candidate was rejected.

Token cost, provider cost, latency, and sandbox operations

Inference cost: USD 0.010589
Sandbox cost: USD 0.075912
Elapsed: 96.9 s
CPU time: 6.99 s
Peak memory: 234 MiB
Sandbox stages: 20 (9 with an operation id)

Role	Calls	Input tokens	Output tokens	Cost
nano	1	1856	541	USD 0.000241
super	3	11356	574	USD 0.003924
ultra	1	4915	101	USD 0.006424

Links

Recorded from docs/demo/placebo-v0.3.1-live-2026-09-17.json (result hash 4ff3693ba6bb…) at 2026-09-17T13:02:08.851Z, subject e724f3b22de79d6ab3f40cffa96de7776c256ce9.

Result hash d6dea3aa5922582732ca23d3ddf1f331eee5883b48c6d70ea78cff77ae1f1201