project-retro SKILL.md skillA

project-retro from mattbrailsford/umbraco-devkit is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add mattbrailsford/umbraco-devkit/project-retro@git:20261019.1479b38

Pins git:20261019.1479b38 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
mattbrailsford/umbraco-devkit
Path
plugins/umbraco-devkit/skills/project-retro/SKILL.md
Versions recorded
1
Latest version
git:20261019.1479b38, committed Oct 19, 2026
Size
4,726 bytes
Repository stars
3
License
MIT

Mines the current (or a described) coding session for friction and hard-won knowledge, then fixes it at the source instead of just writing it down: saves a repeatable trap to this project's `.claude/memory/` as a `gotcha`, or hands off to `skill-report` when the devkit itself should have caught the mistake. Use when the user says "capture what we learned", "do a retro", "write this down for next time", "what would make this faster next time", or after a session that involved real digging or…

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

# project-retro

`skill-report` already covers the half of this that's the devkit's job: a mistake a devkit
skill should have prevented. This skill covers the half that's the project's own: friction
that isn't the devkit's fault, and knowledge worth keeping even when nothing went wrong. Both
ends write to something the next session actually reads, not a narrative nobody reopens.

## Scope

- IN: a session that just happened (or one the user describes) in a project with the devkit
  loaded. Sorting what it cost into: save as a `gotcha`, hand off to `skill-report`, or offer
  it as a `.claude/memory/` entry of another type.
- OUT: a gotcha `feature-build` or `investigate-bug` already saved during this same session —
  check `.claude/memory/` first, don't write it twice. Inventing a new `.claude/memory/` entry
  type (the format is fixed by `project-init`'s templates; if nothing fits, say so and ask
  rather than extending it unprompted). Writing a new devkit skill directly — a real gap in the
  devkit becomes a `skill-report` issue, never a skill hand-rolled from inside a consumer
  project. A feature request with nothing concrete to show yet — say so and stop.

## Argument
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add mattbrailsford/umbraco-devkit/project-retro@sha256:d148e269c9859ffd

The line at the top of this page pins the label git:20261019.1479b38, 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_2zsxavg447jjhici.svg)](https://markdownregistry.com/a/art_2zsxavg447jjhici)

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

Versions

The registry has recorded 1 version of this file, committed on Oct 19, 2026.

versioncommittedcommitsizeaudit
git:20261019.1479b38 latest2026-10-19 1479b38 4,726 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 (4726 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

mattbrailsford/umbraco-devkit · 3 stars · license MIT · pushed 2026-10-19 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_2zsxavg447jjhici
GET https://markdownregistry.com/api/v1/resolve?ref=mattbrailsford/umbraco-devkit/project-retro
GET https://markdownregistry.com/api/v1/blob/d148e269c9859ffdc4f50b52ad236399a0d66ba3ae6c941c859614e0eb54e6c9

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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