init

A repository instruction file named AGENTS.md, created or updated from the project’s documentation, configuration, scripts, and representative code.

In plain words
What is it for?
Use it to document how the repository is built, tested, formatted, checked, generated, organized, and governed by existing instructions.
Why use it?
It records only the project rules and facts an automated coding agent is likely to miss, so future sessions can start with less investigation and make fewer mistakes.

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/0xku/kon/init
Any agent
npx skills add 0xku/kon --skill init
Clone the repo
git clone --depth 1 https://github.com/0xku/kon

Made for: Claude Code, Codex.

Per session 11 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 725 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 $0.00011 $0.00725
Opus 5 $0.00005 $0.00362
Sonnet 5 $0.00002 $0.00145
Haiku 4.5 $0.00001 $0.00072

Measured 2d ago against content hash 508d206064d5, 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.

src/kon/builtin_skills/init/SKILL.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create or update AGENTS.md for this repository.

The goal is a compact instruction file that helps future Kon sessions avoid mistakes and ramp up quickly. Every line should answer: "Would an agent likely miss this without help?" If not, leave it out.

User-provided focus or constraints (honor these): $ARGUMENTS

How to investigate

Read the highest-value sources first:

  • README*, root manifests, workspace config, lockfiles
  • build, test, lint, formatter, typecheck, and codegen config
  • CI workflows and pre-commit / task runner config
  • existing instruction files (AGENTS.md, CLAUDE.md, .cursor/rules/, .cursorrules, .github/copilot-instructions.md)
  • repo-local Kon config and conventions

If architecture is still unclear after reading config and docs, inspect a small number of representative code files to find the real entrypoints, package boundaries, and execution flow. Prefer reading the files that explain how the system is wired together over random leaf files.

Prefer executable sources of truth over prose. If docs conflict with config or scripts, trust the executable source and only keep what you can verify.

What to extract

Look for the highest-signal facts for an agent working in this repo:

  • exact developer commands, especially non-obvious ones
  • how to run a single test, a single package, or a focused verification step
  • required command order when it matters, such as lint -> typecheck -> test
  • monorepo or multi-package boundaries, ownership of major directories, and the real app/library entrypoints
  • framework or toolchain quirks: generated code, migrations, codegen, build artifacts, special env loading, dev servers, infra deploy flow
  • repo-specific style or workflow conventions that differ from defaults
  • testing quirks: fixtures, integration test prerequisites, snapshot workflows, required services, flaky or expensive suites
  • important constraints from existing instruction files worth preserving

Good AGENTS.md content is usually hard-earned context that took reading multiple files to infer.

Read the full file on GitHub · 74 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 · 74 lines · 11 tokens per session scan A 508d206064d5

Subscribe to this mod's changes

init is a skill published in the GitHub repository 0xku/kon (353 stars, last pushed 1mo ago), licensed MIT. It adds 11 tokens to every session and 725 once invoked, about $0.0001 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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