The product

One problem.
Three useful answers.

FixMap narrows the first step, explains its reasoning, and checks the work that followed. It is a map you can inspect—not a promise that the map is always right.

1
You describe the issuein plain English

Users sometimes see invoices in the wrong time zone after daylight saving time changes.

2FixMap finds the few places most likely to matter

Files to inspect

1src/timezone/resolve.ts

2src/invoices/summary.ts

3src/timezone/index.ts

Checks to run

1Timezone conversion tests

2DST boundary cases

3Invoice rendering path

Risks to review

1Cached timezone offsets

2External API assumptions

3Off-by-one date handling

01

Before the edit

Plan: find the few places that matter.

FixMap reads the task and the repository together. It ranks likely context files, attaches the evidence behind each score, and routes the nearest tests it can actually reach.

  • Ranked source files with reasons
  • Workspace-aware test commands
  • Risk areas and scan diagnostics
02

When the map surprises you

Explain: ask why a file is missing.

A ranked list explains what it chose. Explain handles the harder question: whether a path ranked lower, fell below the cutoff, was excluded intentionally, or never entered the scan.

  • Inspect one path directly
  • Distinguish ranking from exclusion
  • Surface scan-limit uncertainty
03

After the edit

Verify: compare the plan with the real change.

FixMap checks the saved plan against a git diff. It points out unplanned files, untouched leading context, missing tests, risky areas, and edits in generated or retired locations.

  • Plan versus diff
  • Advisory findings by default
  • Non-zero only for discarded generated edits

What makes the map useful

Grounded signals, not a black box.

FixMap is deterministic. Every ranking point comes from repository evidence that can be inspected and challenged.

Repository connections

Paths, imports, symbols, workspace boundaries, and related tests establish how code fits together.

Calibrated confidence

Confidence is capped when evidence is thin. Vague tasks can return an empty map instead of a plausible guess.

Explicit uncertainty

Scan limits, missing refs, generated files, and remote-fetch behavior appear as diagnostics rather than disappearing.

Safe by construction

FixMap reads and ranks. It does not install dependencies, run scripts, execute tests, or upload local source.

The boundary matters

A starting map, not proof.

FixMap can help an agent search less and review more deliberately. It cannot prove a change is correct, complete, or safe.

That is why every score has reasons, Verify is mostly advisory, and the benchmark page publishes failures alongside hits.

See the evidence