learn SKILL.md skillA
learn from sethgammon/citadel is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sethgammon/citadel/learn@git:20261016.8d8a928Pins git:20261016.8d8a928 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sethgammon/citadel
- Path
skills/learn/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261016.8d8a928, committed Oct 16, 2026
- First version recorded
- May 7, 2026
- Size
- 13,585 bytes
- Repository stars
- 929
- License
- MIT
Knowledge compiler. Extracts patterns, decisions, and anti-patterns from completed campaigns and evolve cycles, then compiles them into structured wiki pages that integrate with existing knowledge rather than appending isolated files. Implements flush→compile→lint pipeline. Auto-triggered by /postmortem and /evolve Phase 6.
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
# /learn — Knowledge Compiler
## Orientation
**Use when:** You have a completed campaign or evolve cycle and want to compile
its findings into the project's growing knowledge wiki — so future sessions
start smarter, not from scratch.
**Don't use when:** You want a structured incident analysis first (use `/postmortem`
— run it before `/learn`); you haven't finished any campaigns (nothing to compile);
you want a context transfer only (use `/session-handoff`).
**Key difference from appending:** `/learn` doesn't create isolated per-campaign
files. It integrates new findings into existing wiki pages — updating evidence
lists, raising confidence where a pattern is confirmed again, and flagging
contradictions. A wiki is a compiler; a log is an interpreter.
## Invocation Forms
```
/learn — most recently completed campaign
/learn {slug} — specific campaign by slug
/learn {file-path} — specific campaign file path
/learn --from-evolve {target} — compile from /evolve pattern library
/learn --from-evolve {target} --cycle {n} — specific evolve cycle only
…Read the whole file at its exact version.
How to install
mdr add sethgammon/citadel/learn@sha256:8f59eff8ad2db37aThe line at the top of this page pins the label git:20261016.8d8a928, 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.
[](https://markdownregistry.com/a/art_upoc2hsptz73hyjn)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between May 7, 2026 and Oct 16, 2026, about one every 20 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261016.8d8a928 latest | 2026-10-16 | 8d8a928 | 13,585 B | A | view · diff |
| git:20261016.b1296b4 | 2026-10-16 | b1296b4 | 13,457 B | A | view · diff |
| git:20260922.465c020 | 2026-09-22 | 465c020 | 13,270 B | A | view · diff |
| git:20260919.f58febd | 2026-09-19 | f58febd | 12,811 B | A | view · diff |
| git:20260611.0f3f8e7 | 2026-06-11 | 0f3f8e7 | 12,581 B | A | view · diff |
| git:20260611.a647953 | 2026-06-11 | a647953 | 12,568 B | A | view · diff |
| git:20260605.ca2016c | 2026-06-05 | ca2016c | 12,451 B | A | view · diff |
| git:20260604.4ff456f | 2026-06-04 | 4ff456f | 11,775 B | A | view · diff |
| git:20260507.2a8c1ae | 2026-05-07 | 2a8c1ae | 10,507 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13585 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
sethgammon/citadel · 929 stars · license MIT · pushed 2026-10-30 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_upoc2hsptz73hyjn GET https://markdownregistry.com/api/v1/resolve?ref=sethgammon/citadel/learn GET https://markdownregistry.com/api/v1/blob/8f59eff8ad2db37aac0be53afb86bc880cd65bd76df20d56a12c3485078c28cb
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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