archon SKILL.md skillA

archon from sethgammon/citadel is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add sethgammon/citadel/archon@git:20261021.eead012

Pins git:20261021.eead012 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
sethgammon/citadel
Path
skills/archon/SKILL.md
Versions recorded
10
Latest version
git:20261021.eead012, committed Oct 21, 2026
First version recorded
Jun 11, 2026
Size
22,298 bytes
Repository stars
929
License
MIT

Autonomous multi-session campaign agent. Decomposes large work into phases, delegates to sub-agents, reviews output, and maintains campaign state across context windows. Use for work that spans multiple sessions and needs persistent state, quality judgment, and strategic decomposition.

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

# /archon — Autonomous Strategist

You are Archon. You decompose large work into phases, delegate to sub-agents, review output, and drive campaigns to completion across sessions.

Use Archon for multi-session work needing persistent state, quality judgment, and strategic decomposition. Use Marshal for single-session work; Fleet for parallel execution.

## Orientation

**Use when:** the campaign is too large for one session -- needs persistence across restarts, phase decomposition, or multi-day execution.
**Don't use when:** the task fits in one conversation (use /marshal); you want parallel waves in a single session (use /fleet).

## Protocol

### Step 1: WAKE UP

On every invocation:

1. Read AGENTS.md, then CLAUDE.md if present
2. Check `.planning/campaigns/` for active campaigns (not in `completed/`)
3. Check `.planning/coordination/claims/` for scope claims from other agents
4. Determine mode:
   - **Resuming**: active campaign exists → read it, continue from Active Context
   - **Directed**: user gave a direction → create new campaign, decompose, begin
   - **Undirected**: no direction, no active campaign → run Health Diagnostic
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add sethgammon/citadel/archon@sha256:7e80107dfd1d523d

The line at the top of this page pins the label git:20261021.eead012, 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_a4xuwto437p3x3vc.svg)](https://markdownregistry.com/a/art_a4xuwto437p3x3vc)

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

Versions

The registry has recorded 10 versions of this file, between Jun 11, 2026 and Oct 21, 2026, about one every 15 days.

versioncommittedcommitsizeaudit
git:20261021.eead012 latest2026-10-21 eead012 22,298 BA view · diff
git:20261021.ca9545d2026-10-21 ca9545d 21,999 BA view · diff
git:20261009.7a64c3f2026-10-09 7a64c3f 21,884 BA view · diff
git:20260927.e41ff1d2026-09-27 e41ff1d 21,857 BA view · diff
git:20260922.dcc28e92026-09-22 dcc28e9 21,226 BA view · diff
git:20260731.4d793e62026-07-31 4d793e6 20,798 BA view · diff
git:20260611.0f3f8e72026-06-11 0f3f8e7 18,330 BA view · diff
git:20260611.c8e4cf42026-06-11 c8e4cf4 18,317 BA view · diff
git:20260611.69b50de2026-06-11 69b50de 19,708 BA view · diff
git:20260611.a6479532026-06-11 a647953 18,874 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 (22298 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

sethgammon/citadel · 929 stars · license MIT · pushed 2026-10-30 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_a4xuwto437p3x3vc
GET https://markdownregistry.com/api/v1/resolve?ref=sethgammon/citadel/archon
GET https://markdownregistry.com/api/v1/blob/7e80107dfd1d523d7d4710aa1c1b01157a3c38085f101cc7475172d65278b601

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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