learning-from-mistakes SKILL.md skillA

learning-from-mistakes from syahiidkamil/software-engineer-ai-agent-atlas is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add syahiidkamil/software-engineer-ai-agent-atlas/learning-from-mistakes@git:20260518.8bd1ace

Pins git:20260518.8bd1ace in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
syahiidkamil/software-engineer-ai-agent-atlas
Path
.claude/skills/learning-from-mistakes/SKILL.md
Versions recorded
1
Latest version
git:20260518.8bd1ace, committed May 18, 2026
Size
1,953 bytes
Repository stars
404
License
none declared

Record a hard-won engineering lesson after a bug or mistake is resolved. Use when a bug resisted ATLAS until Boss's guidance cracked it, or when a long debugging hunt ended in an aha moment worth never relearning.

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

Capture the lesson so future-ATLAS does not pay the same debugging cost twice.

## When to write an entry

Write one — without being asked — when either is true:

- **Boss had to step in.** A bug or mistake ATLAS could not solve alone; Boss's guidance is what cracked it.
- **Aha moment after a long hunt.** A debugging session that ran long and ended in a non-obvious realization.

Skip routine fixes. The bar is *surprise*: would this genuinely save someone — likely future-ATLAS — from a hard time? If the cause was obvious in hindsight to anyone, it is not worth an entry. Apply the same high-entropy filter as `NOTES.md`: record what is surprising, not what is expected.

## Where

One file per lesson: `docs/learning-from-mistakes/<kebab-case-slug>.md`. The slug names the problem, so the folder is self-indexing — e.g. `stale-closure-in-useeffect.md`, `timezone-off-by-one-on-date-parse.md`.

## Format

Keep it brief — important information only. Four short sections:

```markdown
# <Lesson title — the problem in one line>

**Date**: YYYY-MM-DD · **Area**: <project / module / domain>

## Symptom
What looked wrong — the observable behavior or the assumption that failed.

## Root cause
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add syahiidkamil/software-engineer-ai-agent-atlas/learning-from-mistakes@sha256:046dc376ff53dbe5

The line at the top of this page pins the label git:20260518.8bd1ace, 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_d5eb2gslx6qmackt.svg)](https://markdownregistry.com/a/art_d5eb2gslx6qmackt)

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

Versions

The registry has recorded 1 version of this file, committed on May 18, 2026.

versioncommittedcommitsizeaudit
git:20260518.8bd1ace latest2026-05-18 8bd1ace 1,953 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 (1953 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

syahiidkamil/software-engineer-ai-agent-atlas · 404 stars · license none declared · pushed 2026-11-01 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_d5eb2gslx6qmackt
GET https://markdownregistry.com/api/v1/resolve?ref=syahiidkamil/software-engineer-ai-agent-atlas/learning-from-mistakes
GET https://markdownregistry.com/api/v1/blob/046dc376ff53dbe51c36b652a9d4abd97eca035d252e36d86d8663ea97ec4854

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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