PE

perf-investigation-logger

A utility for recording structured performance notes and gathered evidence during investigations.

Install

mkdir -p .claude/skills/perf-investigation-logger && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/5796" && unzip -o skill.zip -d .claude/skills/perf-investigation-logger && rm skill.zip

Installs to .claude/skills/perf-investigation-logger

Activation

This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.

Use when appending structured perf investigation notes and evidence.
68 chars✓ has a “when” trigger
Beginner

Key capabilities

  • Log structured performance investigation notes
  • Record user quotes verbatim
  • Document performance metrics and evidence pointers
  • Track investigation decisions and rationale

How it works

The skill appends investigation data to a specific markdown file following a standardized format defined in the performance requirements documentation.

Inputs & outputs

You give it
Performance investigation findings and evidence
You get back
Structured markdown file in the performance investigation directory

When to use perf-investigation-logger

  • Recording latency measurements
  • Logging baseline vs experiment data
  • Documenting bottleneck findings

About this skill

perf-investigation-logger

Append structured investigation notes to {state-dir}/perf/investigations/<id>.md.

Follow docs/perf-requirements.md as the canonical contract.

Required Content

  1. Exact user quotes (verbatim)
  2. Phase summary
  3. Decisions and rationale
  4. Evidence pointers (files, metrics, commands)

Output Format

## <Phase Name> - <YYYY-MM-DD>

**User Quote:** "<exact quote>"

**Summary**
- ...

**Evidence**
- Command: `...`
- File: `path:line`

**Decision**
- ...

Constraints

  • Use AI_STATE_DIR for state path (default .claude).
  • Do not paraphrase user quotes.

When not to use it

  • Logging non-performance related debugging notes
  • General project documentation

Prerequisites

Configured AI_STATE_DIR

Limitations

  • Requires adherence to the canonical perf-requirements.md contract
  • Limited to the defined output format

How it compares

It enforces a strict, standardized logging format for performance evidence, unlike unstructured manual note-taking.

Compared to similar skills

perf-investigation-logger side by side with the closest alternatives in the catalog.

SkillInstallsUpdatedSafetyDifficulty
perf-investigation-logger (this skill)15moNo flagsBeginner
chrome-devtools417moReviewIntermediate
python-performance-optimization272moNo flagsIntermediate
analyzing-logs1427dReviewBeginner

Try saying

Example prompts that trigger this skill in your AI assistant.

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