chief-install

chief-install is a skill for Claude Code, Codex from thaitype/chief. It costs 61 tokens per session (2,080 once invoked), scanned C, original, MIT.

An installer for the Chief framework, which adds project subagents and an AGENTS.md instruction file. It creates the .chief project folder later when the framework needs it.

In plain words
What is it for?
Use it to install the latest stable Chief release, a canary version, or a specific version into the current project.
Why use it?
It sets up the framework without immediately adding project-specific planning files or rules.

Skill for Claude CodeCodex

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/thaitype/chief/chief-install
Any agent
npx skills add thaitype/chief --skill chief-install
Clone the repo
git clone --depth 1 https://github.com/thaitype/chief

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 chief-install

README.md
[![agentmods](https://agentmods.dev/badge/skills/thaitype/chief/chief-install.svg)](https://agentmods.dev/skills/thaitype/chief/chief-install)
Your own site
<a href="https://agentmods.dev/skills/thaitype/chief/chief-install"><img src="https://agentmods.dev/badge/skills/thaitype/chief/chief-install.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,080 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
Origin original No closer match found 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 $0.00061 $0.02080
Opus 5 $0.00030 $0.01040
Sonnet 5 $0.00012 $0.00416
Haiku 4.5 $0.00006 $0.00208

Measured 4d ago against content hash 88b6a89b9c2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

chief-install scanned grade C 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 4d 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.

Recursive force deletehighDestructive command

rm -rf with a variable or a broad path is one typo away from removing the wrong tree.

If the setup script **fails completely** (non-zero exit code or crashes), skip to step 3b for full manual install. Do NOT run `rm -rf .chief-agent-tmp` yet — it's needed for manual steps.
skills/setup/chief-install/SKILL.md · 196 lines

How it starts

The opening of the file, as written. The whole thing — 196 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Install the Chief framework into the current project.

This is a lazy install: only subagents and AGENTS.md are placed at install time. .chief/ (project.md, milestones, rules) is created on demand by chief-agent — run /chief-init to bootstrap project context, or just start with /chief-plan.

Arguments

The first argument is the target version (branch or tag). Optional.

  • No argument → install the latest stable release (highest semver tag). Find it by running git ls-remote --tags https://github.com/thaitype/chief.git, strip refs/tags/, ignore ^{} entries, and pick the highest semver version.
  • canary → latest canary branch (active development, unreleased)
  • v1.0.0, v2.0.0, etc. → specific tagged version

Steps

1. Check for existing installation

Check if the Chief is already installed by looking for these signals:

  1. .agents/agents/chief-agent.md exists
  2. AGENTS.md at root contains the keyword "Chief" or "chief-agent" (check file content, not just existence — these files may exist from other setups)

If any of these match → the framework is likely already installed. Warn the user and suggest upgrading instead. Show them:

npx skills@latest add thaitype/chief --skill chief-upgrade
/chief-upgrade

Do NOT proceed unless the user explicitly confirms they want a fresh install.

If none match → proceed.

2. Ask coding agent and install mode

Ask the user:

  1. Which coding agent? — Supported agents: claude-code, opencode, codex, cursor, copilot, gemini-cli, amp, windsurf, kiro, aider
  2. Install mode? (relevant for claude-code and copilot)
    • link (recommended) — symlinks from agent-specific directory to .agents/
    • copy — copies files instead of symlinking
    • On Windows, link mode requires Developer Mode enabled and git config --global core.symlinks true. If unavailable, suggest copy mode.
    • For all other agents, mode does not affect behavior since they read AGENTS.md and .agents/ directly

Read the full file on GitHub · 196 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. 4d ago First seen · 196 lines · 61 tokens per session scan C 88b6a89b9c2b

Subscribe to this mod's changes

chief-install is a skill published in the GitHub repository thaitype/chief (56 stars, last pushed yesterday), licensed MIT. It adds 61 tokens to every session and 2,080 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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