retro SKILL.md skillA

retro from gufranco/claude-engineering-rules is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add gufranco/claude-engineering-rules/retro@git:20261029.8b030ee

Pins git:20261029.8b030ee in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
gufranco/claude-engineering-rules
Path
skills/retro/SKILL.md
Versions recorded
5
Latest version
git:20261029.8b030ee, committed Oct 29, 2026
First version recorded
Jul 10, 2026
Size
23,659 bytes
Repository stars
3
License
MIT

Session retrospective and codebase pattern discovery, with subcommands retro (default), which extracts corrections and preferences into durable config, and discover, which extracts codebase conventions into rule files. Enhanced with self-improving agent lifecycle. Use when user says "retro", "what did we learn", "save preferences", "discover patterns", "extract conventions", or after a significant multi-step session with corrections worth persisting.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

## Overview

Unified learning skill for extracting patterns from conversations and codebases. Enhanced with the self-improving agent lifecycle from alirezarezvani/claude-skills: capture, flag for promotion, graduate to rules.

## When to Use

- The user says "retro", "what did we learn", "save preferences", "discover patterns", or "extract conventions".
- A significant multi-step session ended, or a session collected corrections worth persisting.
- `retro-pointer.py` reported hook blocks at session end.
- Recurring review feedback points at a convention nobody wrote down.

For saving resumable task state, use `/checkpoint save`; for a handoff summary, use `/session-log`; for filing a single fact, use `/brain`.

## Process

| Invocation | Action |
|-----------|--------|
| `/retro` | Analyze conversation for corrections and preferences (default) |
| `/retro discover` | Extract codebase conventions into rule files |
| `/retro --curate` | Review and clean up memory files |
| `/retro --promote` | Graduate memory entries to rules/CLAUDE.md |
| `/retro --hooks` | Mine `~/.claude/logs/hooks.log` for block patterns and propose upstream fixes |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add gufranco/claude-engineering-rules/retro@sha256:84ca535fa8061fdb

The line at the top of this page pins the label git:20261029.8b030ee, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_y5n42tnedymwbleu.svg)](https://markdownregistry.com/a/art_y5n42tnedymwbleu)

0 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jul 10, 2026 and Oct 29, 2026, about one every 28 days.

versioncommittedcommitsizeaudit
git:20261029.8b030ee latest2026-10-29 8b030ee 23,659 BA view · diff
git:20261013.7233f742026-10-13 7233f74 23,653 BA view · diff
git:20261012.d0865132026-10-12 d086513 22,038 BA view · diff
git:20260818.b2d6ec52026-08-18 b2d6ec5 16,359 BA view · diff
git:20260710.7773da32026-07-10 7773da3 15,589 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (23659 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

gufranco/claude-engineering-rules · 3 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_y5n42tnedymwbleu
GET https://markdownregistry.com/api/v1/resolve?ref=gufranco/claude-engineering-rules/retro
GET https://markdownregistry.com/api/v1/blob/84ca535fa8061fdbe810e5a1defc57d00ed03b939b52af15fd7d2d0b1741b39d

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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