Choose a root-cause workflow for a reproducible bug, failing test, or unexpected behavior before changing production code.
The job
Includedreproduction and evidence gathering · root-cause investigation · verification after a fix
Not this pagegeneral code review · behavior-preserving refactoring · penetration testing
30-second route
It is the strongest direct, general-purpose match and has the best Popular rank among the selected general workflows.
Editorial confidence: highIt explicitly routes debugging to its systematic-debugging reference and follows with TDD and verification.
Editorial confidence: highIt provides explicit tooling choices for local, post-mortem, and remote Python debugging.
Editorial confidence: highBefore you install
Three distinct-content finalists directly perform the task and provide usable explicit-source evidence; no build is needed.
Read the intervention guide →Source-led comparison
Facts are extracted from each selected Skill’s declared workflow. Signals describe public adoption; they are not a universal score.
Source notes
Why these candidatesEach candidate comes from tracked public sources and has a source-attributed adoption signal. This is a shortlist, not a catalogue or global ranking.
What this cannot establishWe read declared instructions and public signals. We do not run skills, benchmark outputs, audit security, or claim a universal best choice.
Use it forGeneral reproducible bugs, failing tests, unexpected behavior, build failures, and multi-component root-cause investigations.
Avoid ifYou specifically need an interactive Python debugger or a NextClaw-packaged workflow router.
ActionInstall
EditsNone.
SetupNo setup requirement is stated in SKILL.md.
ContextStart with the failure, reproduce it, inspect errors and recent changes, gather boundary evidence, compare working patterns, test one hypothesis at a time, then implement and verify a focused fix.
OutputFour-phase root-cause workflow, failing regression test, single focused fix, and verification evidence.
ControlStrict phase gates: no fixes before root-cause investigation; stop and reassess after repeated failed fixes.
InvocationNot yet mapped from the source.
Install scopeNot yet mapped from the source.
Agent fitHigh: directly targets the full task across languages and repository types.
Watch outIts cited workflow is process-heavy; keep the investigation proportionate for trivial, clearly reproducible failures.
The skill explicitly applies to bugs, failing tests, unexpected behavior, build failures, and integration issues.SKILL.md:lines 24-44 · inspected 2026-07-20 · high confidence
It defines phased root-cause investigation, pattern analysis, hypothesis testing, implementation, and verification.SKILL.md:lines 46-197 · inspected 2026-07-20 · high confidence
Use it forNextClaw users who want debugging routed into a broader disciplined workflow with test-first fixing and verification.
Avoid ifYou are not using NextClaw, or want a standalone detailed debugging procedure without a router and bundled references.
ActionInstall
EditsNone.
SetupNextClaw marketplace install: `nextclaw skills install superpowers`. The skill checks for bundled references in `skills/superpowers/references/`.
ContextClassify the issue as debugging, load the bundled systematic-debugging reference, then use test-driven development once the root cause is understood and verification before closing.
OutputA selected workflow reference followed by root-cause analysis, test-first fix work when appropriate, and fresh verification evidence.
ControlRouter that defers to user instructions, repository rules, runtime constraints, and more-specific skills.
Invocationnextclaw skills install superpowers
Install scopeNextClaw marketplace
Agent fitHigh for NextClaw; medium elsewhere because this is explicitly a NextClaw adaptation.
Watch outThe detailed debugging methodology is in a bundled reference, not the top-level SKILL.md; installation must include those assets.
The skill covers root-cause-first debugging, test-driven bugfix work, and evidence-before-claims verification.SKILL.md:lines 26-34 · inspected 2026-07-20 · high confidence
For a bug, failing test, or unexpected behavior it directs users to systematic debugging, then TDD and verification.SKILL.md:lines 145-157 · inspected 2026-07-20 · high confidence
Its install boundary and bundled-reference checks are explicitly documented.SKILL.md:lines 44-72 · inspected 2026-07-20 · high confidence
Use it forPython failures that need inspection of hidden state, post-mortem analysis, subprocess debugging, or local/remote attach.
Avoid ifThe repository is not Python, or the main need is a language-agnostic investigation process rather than interactive debugging.
ActionInstall
EditsAdd temporary `breakpoint()` or source-edit debugpy attach code only when appropriate; remove debugger artifacts before committing.
SetupRequires `python3`; debugpy can be installed with `python3 -m pip install debugpy` when absent.
ContextReproduce with the smallest command or test, choose pdb, breakpoint(), post-mortem, or debugpy based on where the failing frame is, inspect state, then rerun the normal project gate without the debugger.
OutputInteractive frame/state inspection plus rerun of the normal project test or gate.
ControlChoose the smallest debugger that reaches the bad frame; includes cleanup and local-only debug-server safeguards.
Invocationpython3 -m pdb … or python3 -m debugpy …
Install scopePython environment
Agent fitHigh for Python-specific diagnosis; low for non-Python codebases.
Watch outPID attach is injection and the skill says to avoid security-sensitive or production targets without explicit approval.
It is explicitly for Python interactive debugging of failing tests, hidden locals, state mutation, services, and remote/headless attach.SKILL.md:lines 1-18 · inspected 2026-07-20 · high confidence
It provides pdb, debugpy, source-edit attach, and post-mortem commands.SKILL.md:lines 20-59 · inspected 2026-07-20 · high confidence
It prescribes smallest reproduction, cleanup, test-gate reruns, and attach safety constraints.SKILL.md:lines 61-73 · inspected 2026-07-20 · high confidence
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