compound-learnings SKILL.md skillA

compound-learnings from harshadmadaye/opm is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add harshadmadaye/opm/compound-learnings@git:20260912.a10a790

Pins git:20260912.a10a790 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
harshadmadaye/opm
Path
skills/compound-learnings/SKILL.md
Versions recorded
1
Latest version
git:20260912.a10a790, committed Sep 12, 2026
Size
6,917 bytes
Repository stars
5
License
MIT

Captures a solved, non-obvious problem as a durable learning doc under docs/solutions/ with validated frontmatter, and retrieves matching learnings before new work starts. Use after a tricky bug fix, a surprising root cause, or a decision with real tradeoffs, and at the start of planning to check whether the team already learned this.

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

# Compound Learnings

Every non-obvious fix that lives only in one engineer's head (or one chat transcript) gets
re-discovered later at full cost. This skill writes it down once, in a place the next engineer
(human or agent) will find by grepping for the symptom.

Two halves: **capture** (after the work) and **retrieval** (before the work).

## The durable bar

Write a learning only when it passes this counterfactual:

> If this document did not exist, would a future engineer reading the final code, tests, and
> existing docs still be likely to repeat the mistake or redo substantial investigation?

Yes -> write it. No -> write nothing and say why.

Effort, diff size, and "it was hard" do not qualify a learning. What qualifies:

- A bug whose root cause was not where the symptom pointed.
- A fix that looks wrong or unnecessary without the story behind it.
- A failed approach that a reasonable engineer would try first.
- A decision with real tradeoffs where the losing option will look attractive again.
- A tooling or environment quirk that cost more than an hour.
- An existing learning that is now inaccurate (update it; a misleading doc is worse than none).
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add harshadmadaye/opm/compound-learnings@sha256:fedf976565d24a07

The line at the top of this page pins the label git:20260912.a10a790, 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_62nqsd37sujqa7v3.svg)](https://markdownregistry.com/a/art_62nqsd37sujqa7v3)

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

Versions

The registry has recorded 1 version of this file, committed on Sep 12, 2026.

versioncommittedcommitsizeaudit
git:20260912.a10a790 latest2026-09-12 a10a790 6,917 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 (6917 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

harshadmadaye/opm · 5 stars · license MIT · pushed 2026-10-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_62nqsd37sujqa7v3
GET https://markdownregistry.com/api/v1/resolve?ref=harshadmadaye/opm/compound-learnings
GET https://markdownregistry.com/api/v1/blob/fedf976565d24a07e734cc33291a35a9293ba1578fda302c2d6351612edc87c6

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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