fork-fleet

fork-fleet is a skill for Claude Code, Codex from aaronjmars/aeon-agent. It costs 45 tokens per session (8,477 once invoked), scanned A, a copy of fork-fleet, MIT.

A monitor for active copies of a code repository, called forks, that compares their code and settings with the original repository.

In plain words
What is it for?
Use it to review unique commits and changed skills, or compare enabled features, variables, models, and schedules across a group of forks.
Why use it?
It shows which forks contain useful new work and where their settings differ from the upstream defaults.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions CLAUDE.md.

Install

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.

agentmods
npx agentmods add skills/aaronjmars/aeon-agent/fork-fleet
Any agent
npx skills add aaronjmars/aeon-agent --skill fork-fleet
Clone the repo
git clone --depth 1 https://github.com/aaronjmars/aeon-agent

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for fork-fleet

README.md
[![agentmods](https://agentmods.dev/badge/skills/aaronjmars/aeon-agent/fork-fleet.svg)](https://agentmods.dev/skills/aaronjmars/aeon-agent/fork-fleet)
Your own site
<a href="https://agentmods.dev/skills/aaronjmars/aeon-agent/fork-fleet"><img src="https://agentmods.dev/badge/skills/aaronjmars/aeon-agent/fork-fleet.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 8,477 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00045 $0.08477
Opus 5 $0.00023 $0.04238
Sonnet 5 $0.00009 $0.01695
Haiku 4.5 $0.00005 $0.00848

Measured 6d ago against content hash 17249aa9122f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

fork-fleet scanned grade A with 1 finding 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 6d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Every GitHub call uses `gh api`, which authenticates via `GITHUB_TOKEN` automatically — no `curl`, no `$SECRET` on the command line (so nothing for the Bash permission layer to refuse), no secrets beyond the default `GIT
Origin

This is a copy

100% identical to fork-fleet — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/fork-fleet/SKILL.md · 615 lines

How it starts

The opening of the file, as written. The whole thing — 615 lines — stays where its author put it; the contents beside it link to each section on GitHub.

${var} — Divergence scope selector; space-separated tokens, order-independent, all optional:

  • scope (code | config | both, default both) — which divergence dimension to run.
  • repo=owner/name — override the parent repo whose forks are scanned (else auto-resolved).
  • fork=owner/name — drill into a single fork (forces code scope; config math needs a fleet).

Empty ⇒ both dimensions over the auto-resolved parent. Examples: `` (both, all forks) · code · config · config repo=octo/aeon · fork=alice/aeon.

Today is ${today}. This is the fleet's divergence monitor. It answers two questions the popularity/liveness skills don't:

  1. Code divergence — which active forks are building real work (unique commits, new/modified skills) that's worth pulling back upstream?
  2. Config divergence — where does the configured fleet systematically disagree with upstream's enabled / var / model / schedule defaults, so the operator can flip a default the fleet has already voted on?

skill-gap ranks what's popular (top 15 by enabled count). This skill's code branch surfaces per-fork unique work; its config branch surfaces where operators disagree with defaults. If 6 of 8 configured forks enable a skill upstream defaults off, upstream is shipping the wrong default; if 5 of 8 disable a skill upstream defaults on, that skill is noise. Both are peer-learning signals.

Operating principles

  • Verdict first, catalog second. The operator reads one line and knows if action is needed.
  • Silent when nothing changed. Weekly cadence + a dormant/undivergent fleet = a read-once habit to kill. A clean run notifies nothing.
  • Per-fork compare is one call, not three. /compare/{owner}:main...{fork_owner}:main returns ahead/behind/unique commits/files in a single round-trip; the recursive git-tree returns the fork's whole file list in one call.
  • Substance ≠ noise. A new skills/*/SKILL.md is worth 100 cron-time edits in aeon.yml. Score accordingly. On the config side, an untouched template fork is not a "vote" — exclude it from divergence math.

Read the full file on GitHub · 615 lines

Changes

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.

  1. 6d ago First seen · 615 lines · 45 tokens per session scan A 17249aa9122f

Subscribe to this mod's changes

fork-fleet is a skill published in the GitHub repository aaronjmars/aeon-agent (11 stars, last pushed yesterday), licensed MIT. It adds 45 tokens to every session and 8,477 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). It is 100% identical to fork-fleet, differing in 0 lines, and is treated as a copy.

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