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Solution · Fix a failing test

Fix the failing test and open a PR

Connect your repo and point at the broken test. The agent reproduces the failure, finds the cause, fixes it, re-runs the suite green, and opens a pull request.

The challenge

Why this is usually hard

A red test in CI is a context switch nobody wants: reproduce it locally, trace whether the bug is in the test or the code, fix it without breaking three other things, and prove the suite is green again. The reproduce-and-trace loop is the slow part, and it is exactly the part that pulls you out of whatever you were doing.

How it works

From prompt to shipped

  1. 1

    Connect your repo

    $ connect repo

    Point the agent at your GitHub repository. It works against a clone, so your branches stay untouched.

  2. 2

    Name the failing test

    $ fix the failing checkout test

    Tell it which test is red — for example the checkout test. The agent indexes the code to map the test to the logic it exercises.

  3. 3

    Reproduce and locate

    It runs the suite in a sandbox to reproduce the failure, then traces whether the fault is in the test or the code it covers.

  4. 4

    Fix and re-run green

    verify

    The agent applies a minimal fix in the sandbox and re-runs typecheck, tests and build to confirm the suite passes and nothing else regressed.

  5. 5

    Open a pull request

    $ open pr

    You get a PR explaining the root cause and the fix, ready to review. The repo only changes when you merge.

Built on:Sandbox verificationGitHub PR agentCode intelligence

Why code-anything

What you get out of the box

Green before you look

The fix is only offered once the suite, typecheck and build pass in the sandbox — so the PR lands already green.

Root cause, not a mute

It traces whether the bug is in the test or the code and fixes the actual cause, rather than skipping or weakening the test.

Delivered as a PR

The fix arrives as a reviewable pull request with an explanation, so you can confirm the reasoning before merging.

No context switch

The slow reproduce-and-trace loop happens in the sandbox, so you stay on your own work until the PR is ready to review.

In practice

What it looks like

A realistic version of the flow: the agent reproduces the red test, finds the cause, and only opens the PR once everything is green.

The flow
$ connect repo  acme/checkout
$ fix the failing checkout test and open a PR
✓ reproduced failure in checkout.test.ts
✓ traced cause to a stale total when a coupon is removed
✓ applied fix, re-ran suite
✓ typecheck · tests · build all pass
→ opened PR #204  "Fix checkout total on coupon removal"

What you get

  • The failing test reproduced and its root cause identified
  • A minimal fix to the code or the test, as appropriate
  • The full suite, typecheck and build passing in the sandbox
  • A pull request explaining the cause and fix, ready to review

FAQ

Common questions

It traces whether the fault is in the test or the code it covers and fixes the actual cause. The goal is a genuinely passing suite, not a skipped or weakened test.
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Build fix failing tests in minutes, not weeks.

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