preyan/0xchess/trace

Claude Code and agent skill by preyan/0xchess

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Checking that the SKILL.md file is still in the repository.

Evidence-driven tracing with competing hypotheses in parallel. Activate when user says: trace this, trace, why did this happen, root cause analysis, investigate why.

Install

npx vskill@latest install preyan/0xchess/trace

SKILL.md

The same SKILL.md was published earlier as zereight/gitlab-mcp/trace.

Trace

Evidence-driven causal tracing using competing hypotheses. Use for ambiguous, causal, evidence-heavy questions where the goal is to explain WHY something happened.

Good Entry Cases

  • Runtime bugs and regressions
  • Performance / latency behavior
  • Architecture / premortem / postmortem analysis
  • Config / routing / orchestration behavior
  • "Given this output, trace back the likely causes"

Core Contract

Always preserve: Observation → Hypotheses → Evidence For → Evidence Against → Best Explanation → Critical Unknown → Discriminating Probe

Workflow

  1. Restate the observed result precisely
  2. Generate 3 deliberately different hypotheses:
  • Code-path / implementation cause
  • Config / environment / orchestration cause
  • Measurement / artifact / assumption mismatch
  1. Assign @tracer to each hypothesis lane
  2. Each lane: evidence for, evidence against, critical unknown, discriminating probe
  3. Apply lenses: Systems, Premortem, Science
  4. Rebuttal round between top two hypotheses
  5. Rank, detect convergence, synthesize

Output

### Observed Result
[What happened]
### Ranked Hypotheses
| Rank | Hypothesis | Confidence | Evidence Strength |
|------|------------|------------|-------------------|
### Most Likely Explanation
[Current best explanation]
### Critical Unknown
[Single missing fact]
### Recommended Discriminating Probe
[Single next probe]

Security

  • Security scanPassed, 90 of 100Pattern checks on the skill's files.
  • Model reviewPassed

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Source

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