---
title: "perf-investigation-logger"
description: "Append structured investigation notes to `{state-dir}/perf/investigations/<id>.md`."
type: skill
canonical_url: https://claudary.paisolsolutions.com/skills/skill-25
source: "Claudary"
difficulty: intermediate
author: "Claude Code Knowledge Pack"
date: 2026-07-10T11:44:18.555Z
license: CC-BY-4.0
attribution: "perf-investigation-logger — Claudary (https://claudary.paisolsolutions.com/skills/skill-25)"
---

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

## Overview

---
name: perf-investigation-logger
description: "Use when appending structured perf investigation notes and evidence."
version: 5.1.0
---

# 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.

---

Source: [Claudary](https://claudary.paisolsolutions.com/skills/skill-25) · https://claudary.paisolsolutions.com