install-skill

install-skill is a skill for Claude Code, Codex from aaronjmars/aeon-agent. It costs 26 tokens per session (2,264 once invoked), scanned A, a copy of install-skill, MIT.

An installer for community skill packs stored in GitHub repositories. It can install an entire pack or selected skills and submit the changes through an automatically merged pull request, a proposed code change for review.

In plain words
What is it for?
Use it to add skills from a repository, select particular skills or branches, and deliver the installation to the main branch through a pull request.
Why use it?
It avoids manually copying skills into a project while keeping installation changes reviewable and passing through security checks. Installed skills remain disabled until explicitly enabled.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to add skills from a repository, select particular skills or branches, and deliver the installation to the main branch through a pull request.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/aaronjmars/aeon-agent/install-skill
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.

Any agent
npx skills add aaronjmars/aeon-agent --skill install-skill
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 install-skill

README.md
[![agentmods](https://agentmods.dev/badge/skills/aaronjmars/aeon-agent/install-skill/github.svg)](https://agentmods.dev/skills/aaronjmars/aeon-agent/install-skill)
Your own site
<a href="https://agentmods.dev/skills/aaronjmars/aeon-agent/install-skill"><img src="https://agentmods.dev/badge/skills/aaronjmars/aeon-agent/install-skill/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for install-skill

Your own site · 80×15
<a href="https://agentmods.dev/skills/aaronjmars/aeon-agent/install-skill"><img src="https://agentmods.dev/badge/skills/aaronjmars/aeon-agent/install-skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 26 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,264 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00026 $0.02264
Opus 5.5 $0.00010 $0.00906
Sonnet 5.5 $0.00005 $0.00453
Haiku 4.5 $0.00003 $0.00226

Measured 17d ago against content hash 4c32d7a6e321, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

install-skill 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 17d 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.

`bin/install-skill-pack` fetches the pack tarball over the network (curl to `codeload.github.com`). `curl` reaches the network fine — there is no network sandbox. If the fetch still fails:
Origin

This is a copy

100% identical to install-skill — 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/install-skill/SKILL.md · 120 lines

How it starts

The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.

${var} — The community pack to install: owner/repo, optionally followed by specific skill slugs to install only a subset, and optional flags. Required. Examples:

  • clawhunter/clawhunter-skills — install the whole pack
  • clawhunter/clawhunter-skills clawhunter-bounties — install one skill from it
  • richard7463/aeon-skill-pack-claim-audit --branch develop — install from a non-default branch

If ${var} is empty, exit INSTALL_SKILL_NO_VAR:

./notify "install-skill aborted: var empty — pass a pack repo e.g. \"owner/repo\" (optionally + skill slugs)"

Then stop.

Today is ${today}. Your task is to install the community skill pack named in ${var} into this fork and ship it as a PR that auto-merges — so the skills land on main (and show up in the dashboard) with no manual step. Never commit directly to main: the change still flows through a reviewable, CI-gated PR — it just merges itself. This is the dashboard "Install" button's backend: the operator clicked it on a Community Pack card, so be fast, safe, and honest about what landed. The safety gate is real but unchanged: every skill is security-scanned and lands disabled, so nothing executes until the operator sets secrets and flips enabled: true.

How installation works (so you can explain it and trust the output)

The repo already ships a hardened installer, bin/install-skill-pack, which is the single source of truth — do not reimplement it. Given owner/repo it:

  1. Downloads the repo tarball and reads its skills-pack.json manifest (per-skill path, schedule, default_enabled, secrets_required, capabilities). No manifest → it falls back to scanning skills/*/SKILL.md.
  2. Security-scans every skill from an untrusted source via scripts/skill-scan.sh. Sources listed in skills/security/trusted-sources.txt skip the deep scan (format checks still run). In CI there is no TTY, so a HIGH-severity finding blocks that skill unless --force is passed — this is the safety gate, leave it on.
  3. Copies each skill into skills/<slug>/, then updates aeon.yml (added enabled: false so nothing runs until the operator turns it on), skills.json, and records provenance in skills.lock.

Your job is to drive that script, regenerate the catalog, and wrap the result in a reviewable PR.

Read the full file on GitHub · 120 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. 17d ago Changed 4c32d7a6e321
  2. 1mo ago First seen · 120 lines · 26 tokens per session scan A 836ad1056f44

Subscribe to this mod's changes

install-skill is a skill published in the GitHub repository aaronjmars/aeon-agent (12 stars, last pushed 7d ago), licensed MIT. It adds 26 tokens to every session and 2,264 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). It is 100% identical to install-skill, differing in 0 lines, and is treated as a copy.

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