AgentSkillsCN

session-analyzer

分析pi/codex/claude会话记录，以发现模式、技能及模型性能的相关性。挖掘使用历史以寻找自动化机会，并按一天中的不同时间段跟踪模型质量。

SKILL.md
--- frontmatter
name: session-analyzer
description: Analyze pi/codex/claude session transcripts to discover patterns, skills, and model performance correlations. Mines usage history for automation opportunities and tracks model quality by time of day.

Session Analyzer

Two tools for session analysis:

1. Model Performance Analysis

Analyzes frustration signals across all sessions (pi, codex, claude) correlated with time of day and model.

bash
# Run analysis (outputs to ./model-performance-analysis/)
~/code/research/pi-skills/session-analyzer/model-performance.js

# Custom output directory
~/code/research/pi-skills/session-analyzer/model-performance.js /path/to/output

Outputs:

  • •report.md — full analysis with ASCII charts
  • •chart.html — interactive browser charts
  • •data.csv — raw data for external graphing
  • •model-stats.json — aggregated stats per model

Key metrics:

  • •Frustration rate by hour (CET)
  • •PST vs non-PST hours comparison
  • •Model comparison (codex vs opus vs sonnet)
  • •Worst days analysis

2. Pattern Discovery (Original)

Extracts transcripts and optionally spawns subagents to find automation opportunities.

bash
# Extract transcripts for current directory
~/code/research/pi-skills/session-analyzer/analyze.js

# Extract transcripts for specific directory
~/code/research/pi-skills/session-analyzer/analyze.js /path/to/project

# Extract + analyze with subagents
~/code/research/pi-skills/session-analyzer/analyze.js --analyze

# Custom output directory
~/code/research/pi-skills/session-analyzer/analyze.js --output ./my-analysis --analyze

What It Does

  1. •Extract: Reads all session files for the given working directory from ~/.pi/agent/sessions/
  2. •Split: Chunks transcripts into ~100k char files (fits in context window)
  3. •Analyze (optional): Spawns pi subagents to identify:
    • •AGENTS.md patterns: Coding style rules, conventions you repeat
    • •Skill patterns: Multi-step workflows you do often
    • •Prompt templates: Reusable prompts for common tasks

Output

Without --analyze:

code
session-transcripts/
├── session-transcripts-000.txt
├── session-transcripts-001.txt
└── ...

With --analyze:

code
session-transcripts/
├── session-transcripts-000.txt
├── session-transcripts-000.summary.txt  # Pattern analysis
├── session-transcripts-001.txt
├── session-transcripts-001.summary.txt
└── FINAL-SUMMARY.txt                    # Aggregated findings

Setup

Install dependencies (run once):

bash
cd ~/code/research/pi-skills/session-analyzer
npm install

When to Use

  • •After working on a project for a while, to discover what rules/skills would help
  • •Periodically to find new automation opportunities
  • •When you notice you keep giving similar instructions

Source: ferologics/pi-skills Originally adapted from badlogic/pi-mono gist