# Fix Runner > Specialized, lightweight corrector dispatched by the evaluator on FAIL, or by qa-preflight after a feature is done. Reads the structured evaluation-report.json (both producers write the same schema), applies the minimal fix for the reported problem, locally revalidates the failing gate/test, commits (one commit per correction), records the attempt in progress.json, and returns control to whoever dispatched it. Does not implement new features, does not orchestrate the attempt loop, and does not decide ABORTED. Never invoked directly by a human. - Skill: `dayvisonassis/fix-runner` (Agent Skill) - Install (CLI): `npx skillmds@latest add dayvisonassis/fix-runner` - Raw SKILL.md: https://api.skillmd.com/api/skills/dayvisonassis/fix-runner/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Docs & Writing - Author: dayvisonassis (https://skillmd.com/u/dayvisonassis) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/dayvisonassis/fix-runner --- # Fix Runner A surgical corrector. When the `evaluator` returns **FAIL**, it dispatches `fix-runner` with a structured error report. `fix-runner` fixes **only** the reported problem, with the smallest footprint, then hands control back to the `evaluator` to re-confirm. It is deliberately smaller and more focused than `implement-feature`: it corrects, it does not build. > Base docs: `https://github.com/dayvisonassis/sdd-skills/blob/main/docs/Skill_Fix_Runner.md` (full rationale), > `https://github.com/dayvisonassis/sdd-skills/blob/main/docs/Contrato_de_Feature.md` (contract criteria), > `https://github.com/dayvisonassis/sdd-skills/blob/main/docs/Fluxo_SDD_e_Implementacao_das_Skills.md` (flow, handoff, progress.json). > Report schema: `../evaluator/references/evaluation-report-schema.md`. **This skill is stateless about the loop.** The `evaluator` owns the attempt counter, the limit N, and the ABORTED decision. `fix-runner` performs **one** correction per invocation. **Scope — code, not tests.** `fix-runner` corrects **production code** for failures the evaluator classifies as `kind: gate` or `kind: observable-criterion`. **Test failures (`kind: test`) are NOT its job** — the evaluator routes those to the matching test-writer (confirmed by the matching test-validator). If a report handed to `fix-runner` contains only `kind: test` failures, return "not resolved — test failures must be routed to a test-writer" without touching code. ## INPUT - **Target feature** (ID) and the **path to `evaluation-report.json`** — passed by the **`evaluator`** (on FAIL) or by **`qa-preflight`** (after the feature is done). Both write the same schema, and the on-disk report is the source of truth either way. - If no report path is given, auto-discover the feature's `evaluation-report.json` in `docs/-/` and `lastEvaluationReport` in `progress.json`. - Auto-discovers: the feature's `contract.md` and `progress.json`. Reads `spec.md`/`plan.md` lazily, only for the context the fix needs. If no error report can be found, abort: "fix-runner requires an evaluation-report from the evaluator or from qa-preflight." ## OUTPUT - A **minimal code correction** for the reported failure(s). - **One commit** per correction — `fix(F): ` (or the repo's style). Stage only the touched files. - A light update to `progress.json` recording that a correction was applied for the current `attempt` (does NOT decide the state). - A signal back to the evaluator: **"correction applied — re-evaluate F"** or **"not resolved — "**. - The fix-runner does **not** emit a CLEAN/FAIL verdict — the evaluator re-confirms. --- ## EXECUTION STEPS ### Step 1: Resolve Input - Resolve the target feature and locate the `evaluation-report.json` (from the passed path, or auto-discover via `progress.json`'s `lastEvaluationReport`). No report → abort. ### Step 2: Load Minimal Context - Read the `evaluation-report.json`: each `failures[]` entry — `kind`, `ref`, `message`, `location`, `evidence`. - For each failure, re-read **only** the violated criterion/gate (`ref`) in `contract.md`, so the fix conforms to the contract rather than guessing. - Read `progress.json` to know the feature and the current `attempt`. - Read `spec.md`/`plan.md` lazily, only for the slice needed to understand the fix. No broad codebase sweep. ### Step 3: Apply the Minimal Correction - Fix **exclusively** the reported cause(s), with the smallest footprint. No opportunistic refactoring, no "while I'm here" improvements, no scope beyond the report. - If the report has multiple `failures[]`, address them together only if they are part of the same root cause; otherwise fix what the report lists, in order. - Record what was changed and why (for the commit message and the handoff signal). ### Step 4: Local Revalidation - Run **specifically** the gate/test that failed (from the report's `ref`/`location`), not the whole suite — a cheap smoke check to avoid returning an obviously broken fix. - If it still fails, adjust **within the same error's scope** and re-run. Do not expand scope to unrelated problems. - This local check does NOT replace the evaluator — the evaluator re-confirms against the whole contract afterward. ### Step 5: Commit - One commit, staging **only** the files touched by this correction. Message: `fix(F): ` (or match the repo's recent commit style). - No `git add -A` / `git add .`. Commit on the current branch — never create or switch branches. Do not skip hooks. ### Step 6: Return to the Evaluator - Update `progress.json`: record that a correction was applied for the current `attempt` (e.g. a note/timestamp). Do **not** set CLEAN/FAIL/PENDING/ABORTED and do **not** increment `attempt` — those belong to the evaluator. - Signal back: - **"correction applied — re-evaluate F"** when the local revalidation passed and the commit was made, OR - **"not resolved — "** when the fix could not be made within scope (no commit). --- ## RULES **Always:** - Act only from an evaluation-report — produced by the `evaluator` or by `qa-preflight`. - Re-read the violated criterion/gate (`ref`) in `contract.md` before fixing, so the fix conforms. - Fix only the reported cause, with the smallest possible footprint. - Locally revalidate the failing gate/test before returning. - Make one commit per invocation, staging only the touched files. - Hand control back to the evaluator for re-confirmation. **Never:** - Implement new features or widen the contract's scope. - Do opportunistic refactoring outside the reported error. - Count attempts, decide ABORTED, or emit a CLEAN/FAIL verdict (the evaluator's job). - Write CLEAN/FAIL/PENDING/ABORTED into `progress.json` or increment `attempt`. - Use `git add -A` / `git add .`; skip hooks; create or switch branches. - Read the codebase with a broad upfront sweep — read lazily, scoped to the fix. --- ## Edge Cases **No evaluation-report found**: abort — the fix-runner needs the evaluator's report to act. **Report references a `ref` not found in contract.md**: fix from the report's `message`/`location`/`evidence`, and note the missing contract reference in the return signal so the evaluator/spec-writer can reconcile. **`kind: qa-finding`**: this is the expected shape, not an anomaly — the finding is a real defect that no contract criterion covered, and its `ref` is the QA case id that found it (e.g. `CT-ACESSIBILIDADE-002`). Fix from `message`/`location`/`evidence` and do **not** report a missing contract reference. Everything else is unchanged: minimal footprint, local revalidation, one commit. **Fix can't be made within scope** (the real cause is outside the reported failure, or requires a spec/contract change): do not stretch scope. Return "not resolved — " without committing, so the evaluator can decide (re-evaluate, PENDING, or eventually ABORTED). **Local revalidation can't run in this environment** (missing toolchain/browser): make the minimal fix the report implies, commit, and return "correction applied (local revalidation skipped: ) — re-evaluate F" so the evaluator runs the authoritative check. **Multiple unrelated failures in one report**: fix each within its own scope; if one is unresolvable, fix the others, commit, and return a combined signal noting which remain. **Working tree has unrelated changes**: stage only the files this correction touched; leave everything else untouched. **Commit-message style inconsistent in recent history**: fall back to `fix(F): `.