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HarambeeAIHarambeeAI/bayes-ship/skills/ship-bugfix/SKILL.md

ship-bugfix

Skill1 starsChanged 7 months agoMITView on GitHub

Systematic bug diagnosis and fix using 4-phase root cause analysis. Writes a failing test for the bug (RED), fixes it (GREEN), verifies no regressions. Argument is the bug description.

The file

We split this skill into the rules it gives an agent

5 rules. About 0 are common, 5 are distinctive, and 0 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈5

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Test hypotheses: Add logging, inspect state, trace execution to narrow down.

    line 20
  2. Distinctive:

    Consider whether the fix should also add defensive checks upstream to prevent similar bugs.

    line 24
  3. Distinctive:

    Write a failing test that reproduces the bug exactly (RED).

    line 27
  4. Distinctive:

    Run the full test suite. Confirm no regressions.

    line 32
  5. Distinctive:

    Verify the original reproduction now works correctly.

    line 33

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Bugfix — Systematic diagnosis and fix

Usage

/bayes-ship:ship-bugfix <description of the bug>

Process

Phase 1: Reproduce

Dispatch a debugger subagent to create a minimal reproduction of the bug. If the bug cannot be reproduced, report this and ask the user for more details.

Phase 2: Root cause tracing (4-phase systematic process)

  1. Gather evidence: Collect logs, error messages, stack traces, relevant code paths.
  2. Form hypotheses: List 2-3 possible causes based on evidence.
  3. Test hypotheses: Add logging, inspect state, trace execution to narrow down.
  4. Confirm root cause: Prove the fix addresses the actual cause, not a symptom.

Phase 3: Defence-in-depth

Consider whether the fix should also add defensive checks upstream to prevent similar bugs.

Phase 4: Fix (TDD)

  1. Write a failing test that reproduces the bug exactly (RED).
  2. Fix the code to make the test pass (GREEN).
  3. Refactor if needed.

Phase 5: Verify

  1. Run the full test suite. Confirm no regressions.
  2. Verify the original reproduction now works correctly.
  3. Atomic commit with descriptive message referencing the bug.

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