Archon is a workflow engine for AI coding agents that turns development processes into YAML-defined sequences with phases, validation gates, and artifacts. Developers use it to run repeatable processes such as planning, implementation, testing, code review, and pull-request creation across projects. The catalogue entries provide commands, agents, skills, hooks, instructions, and settings for working with Archon.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add commands/coleam00/archon/prime-isolationgit clone --depth 1 https://github.com/coleam00/ArchonWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/commands/coleam00/archon/prime-isolation)<a href="https://agentmods.dev/commands/coleam00/archon/prime-isolation"><img src="https://agentmods.dev/badge/commands/coleam00/archon/prime-isolation.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00011 | $0.00895 |
| Opus 5 | $0.00005 | $0.00447 |
| Sonnet 5 | $0.00002 | $0.00179 |
| Haiku 4.5 | $0.00001 | $0.00089 |
Grade A, and why
prime-isolation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- prime-isolation — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 106 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prime Isolation: Worktree Isolation and Git Ops Orientation
Objective
Orient on the isolation system (packages/isolation/) and low-level git operations
(packages/git/) before working on worktree lifecycle, branch management, or error handling.
Process
1. Understand the Package Structures
!ls packages/isolation/src/
!ls packages/git/src/
2. Understand Branded Git Types
Read packages/git/src/types.ts in full — branded types (RepoPath, BranchName,
WorktreePath) that prevent mix-ups between plain strings and typed git paths.
3. Understand Low-Level Git Operations
Read packages/git/src/worktree.ts first 60 lines — createWorktree, removeWorktree,
listWorktrees, worktreeExists, toWorktreePath (hashing strategy for unique paths).
Read packages/git/src/exec.ts — execFileAsync and mkdirAsync wrappers. Note:
always use execFileAsync (not exec) for git commands to avoid shell injection.
Read packages/git/src/branch.ts first 40 lines — checkout, getDefaultBranch,
isBranchMerged, findWorktreeByBranch.
4. Understand the Isolation Resolver
Read packages/isolation/src/resolver.ts first 130 lines — IsolationResolver class with
the 7-step resolution order:
- Existing environment reference (from conversation)
- No codebase → skip isolation
- Workflow reuse (same codebase + workflow identity)
- Linked issue sharing (cross-conversation)
- PR branch adoption (skill symbiosis)
- Limit check with auto-cleanup (default: 25 worktrees per codebase)
- Create new worktree
5. Understand Error Classification
Read packages/isolation/src/errors.ts in full — classifyIsolationError() maps raw git
errors (permission denied, no space left, timeout, not a git repo) to user-friendly messages.
IsolationBlockedError for limit-exceeded cases. isKnownIsolationError for detection.
6. Understand the Worktree Provider
Read packages/isolation/src/providers/worktree.ts first 60 lines — WorktreeProvider
implements IIsolationProvider: createEnvironment, removeEnvironment, environmentExists.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 5d ago First seen · 106 lines · 11 tokens per session scan A 36f7d9777357
prime-isolation is a command published in the GitHub repository coleam00/Archon (23,366 stars, last pushed 2d ago), licensed MIT. It adds 11 tokens to every session and 895 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other commands, from other repositories
fix-issues
Diagnose, reproduce, then fix reproducible open GitHub issues in parallel: one clean worktree/issue; symlink build artifacts to avoid rebuilds.
review-prs
Parallel PR triage: decide merge-worthiness, prepare rebased worktrees, fix blockers, return them for human merge.
triage
Classify/label newly opened GitHub issues missing labels.
release
Release all packages at specified version.
cleanup
Autonomous cleanup-loop iteration: discover ONE target → complete execution → verify → report. Runs stateless: derive from current tree; assume prior runs left it consistent.
hello
Say hello.