# User shares Claude Code skill for chess game analysis

Digest AI · Agents & Tools · published 2026-09-26T15:34:53Z

Canonical: https://digestai.news/story/user-shares-claude-code-skill-for-chess-game-analysis

## Summary

A developer has released a set of Claude Code skills that automate the post-mortem analysis of chess games. The tool takes a game link and an optional audio recording of the player's thought process as input. It uses whisper.cpp to transcribe the audio locally and matches the commentary to specific moves using PGN clock times. 

The system drives the Stockfish engine to answer human-style questions about the game, such as why a specific move was played or what alternatives existed. It generates a plain-language explanation of mistakes, an annotated PGN, and a narrated video of the game. The author notes that this process takes about one hour to run and is best suited for slow or rapid games where the player took time to think, rather than blitz games. 

The project is open-source under the MIT license, with dependencies including Python, Stockfish, and ffmpeg. The author recommends providing audio or written notes to get a review of reasoning rather than just engine evaluation. Users can install the skills by cloning the repository and copying them into their Claude Code skills directory.

## Key points

- Claude Code skill analyzes chess games using Stockfish and user audio notes.
- Generates plain-language explanations, annotated PGN, and a narrated video of the game.
- Full analysis run takes approximately one hour of processing time.

## Why it matters

Demonstrates a practical application of agentic AI tools for personal skill improvement, combining local transcription, engine analysis, and video generation in a single workflow.

## Sources

1. [Show HN: A Claude Code skill to analyze your chess games](https://github.com/brumar/chess-postmortem-skills) (github.com, 2026-09-26, primary source)

## Cite

Digest AI, "User shares Claude Code skill for chess game analysis", 26 September 2026, https://digestai.news/story/user-shares-claude-code-skill-for-chess-game-analysis

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