inits

A repository-onboarding tool that studies a codebase and creates or improves an AGENTS.md file, which records important instructions for future coding agents.

In plain words
What is it for?
Use it to document cross-file conventions, hidden operational requirements, and the reasons behind project-specific rules.
Why use it?
It preserves project rules and non-obvious constraints that would otherwise have to be rediscovered each time an agent starts work.

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/outlinedriven/odin-codex-plugin/init
Any agent
npx skills add OutlineDriven/odin-codex-plugin --skill init
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/odin-codex-plugin

Made for: Claude Code, Codex.

Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 382 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 $0.00041 $0.00382
Opus 5 $0.00020 $0.00191
Sonnet 5 $0.00008 $0.00076
Haiku 4.5 $0.00004 $0.00038

Measured 2d ago against content hash 24cfc348a62d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

inits 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • inits — 100% identical, 0 lines differ
skills/init/SKILL.md · 42 lines

What it actually says

Init - AGENTS.md Generator

Analyze this codebase and create or improve an AGENTS.md file for future ODIN Code Agent instances.

Core principle

Only encode knowledge that is expensive to rediscover. An agent can fd, rg, ast-grep, and read files in seconds. If the information is one search away, omit it.

Objective guard

AGENTS.md is for priming and guiding future agents with conventions, constraints, and rationale. It is not a repository summary.

What to include

  1. Cross-cutting conventions and boundaries that span multiple files.
  2. Implicit contracts and operational constraints that are easy to miss in quick code exploration.
  3. Non-obvious command guidance only when hidden constraints matter (required ordering, flags, env vars, caveats).
  4. For each included item, state:
    • the rule or constraint
    • why it exists (rationale)

What to omit (the agent can discover these)

  • File trees, per-directory descriptions, or component inventories.
  • Dependency/version tables.
  • Generic development best practices.
  • Information that is easily discoverable via search/read.
  • Fabricated filler sections such as "Common Development Tasks", "Tips", or "Support".
  • Any summary-style prose that restates code organization without conventions or rationale.

Workflow

  • If AGENTS.md already exists, suggest targeted improvements instead of rewriting.
  • Do not repeat yourself. Each fact appears once.
  • Every statement must be grounded in files you actually read. Never invent.
  • If uncertain, omit the claim rather than speculate.
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 · 42 lines · 41 tokens per session scan A 24cfc348a62d

Subscribe to this mod's changes

inits is a skill published in the GitHub repository OutlineDriven/odin-codex-plugin (15 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 41 tokens to every session and 382 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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