init

A project-initialization procedure for Agent Skills, a system that gives coding agents reusable instructions for specific tasks.

In plain words
What is it for?
Use it when setting up Agent Skills for the first time or safely checking an existing setup again.
Why use it?
It checks that the required validator tool and configuration are present before setup continues, so the project does not rely on an incomplete installation.

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/codagent-ai/agent-skills/init
Any agent
npx skills add Codagent-AI/agent-skills --skill init
Clone the repo
git clone --depth 1 https://github.com/Codagent-AI/agent-skills

Made for: Claude Code, Codex.

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 617 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00040 $0.00617
Opus 5 $0.00020 $0.00309
Sonnet 5 $0.00008 $0.00123
Haiku 4.5 $0.00004 $0.00062

Measured 2d ago against content hash b6cd0bb8d6aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

init 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 2d 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.

skills/init/SKILL.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Init

Set up Agent Skills in the current project. This skill is idempotent — safe to re-run.

Announce at start: "Initializing Agent Skills in this project."

Steps

1. Check Prerequisites

Check that the Agent Validator CLI is installed. If missing, tell the user what to install and stop.

  • agent-validator — run agent-validator --version.
    • If not found: "Agent Validator CLI is required. Install with npm install -g agent-validator, then run agent-validator init in your project, then re-run /codagent:init."
    • If found, extract the version number and verify it is ≥ 0.15. If too old: "agent-validator 0.15 or higher is required (found <version>). Upgrade with npm install -g agent-validator@latest, then re-run /codagent:init."

Use this shell snippet to compare versions:

version_gte() { [ "$(printf '%s\n' "$2" "$1" | sort -V | head -1)" = "$2" ]; }

Example: version_gte "$installed_version" "0.15" returns true if $installed_version ≥ 0.15.

If the CLI is missing or out of date, stop. The user must resolve it first, then resume /codagent:init.

Validator config (check after CLI passes):

  • .validator/config.yml must exist. If not found: "Validator config not found. Run agent-validator init in your project first, then re-run /codagent:init." Stop.

2. Print Success

Print a summary:

Agent Skills initialized successfully.

Available skills:
- /codagent:propose — evaluate an idea and write a proposal
- /codagent:spec — interview-driven requirement discovery
- /codagent:design — brainstorm architecture and write a design doc
- /codagent:test-plan — plan automated and acceptance testing
- /codagent:plan-tasks — break a change into scoped task files
- /codagent:implement-and-validate — implement a single task and verify with the validator
- /codagent:finalize-pr — push PR, wait for CI, fix failures

3. Commit

Invoke /agent-validator:validator-commit skip to commit any scaffolding changes. Checks are skipped because init only writes boilerplate.

Read the full file on GitHub · 61 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. 2d ago First seen · 61 lines · 40 tokens per session scan A b6cd0bb8d6aa

Subscribe to this mod's changes

init is a skill published in the GitHub repository Codagent-AI/agent-skills (30 stars, last pushed 1mo ago), licensed MIT. It adds 40 tokens to every session and 617 once invoked, about $0.0002 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.

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