cli: Instructions file for Codex

AGENTS.md

cli AGENTS.md is an instructions file for Codex, OpenCode from vibgrate/cli. It costs 953 tokens per session, scanned A, original, Apache-2.0.

A contribution guide for Vibgrate, a command-line code-graph tool that maps relationships between parts of a codebase. It also defines commands for building, testing, linting, and type-checking the project.

In plain words
What is it for?
Use it to ask where symbols are created, inspect their relationships, measure change impact, trace paths, view the module tree, or validate Vibgrate changes.
Why use it?
It helps agents query the repository's structure efficiently and requires repeatable output plus checks that catch broken code before a change is considered complete.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md.

This is vibgrate/cli's own configuration. It tells Codex and OpenCode how to work on cli itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything cli configures →

Reuse

Borrowing it

Nothing to install: this file belongs to vibgrate/cli. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/vibgrate/cli/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/vibgrate/cli

Made for: Codex, OpenCode.

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 cli AGENTS.md

README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 953 This file is loaded in full into every session.
When invoked 953 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00953 $0.00953
Opus 5.5 $0.00381 $0.00381
Sonnet 5.5 $0.00191 $0.00191
Haiku 4.5 $0.00095 $0.00095

Measured 1mo ago against content hash 196d6f727f39, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cli AGENTS.md 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 1mo 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.

AGENTS.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Guidance for AI coding agents working in this repository (the public, Apache-2.0 Vibgrate CLI). Humans: see CONTRIBUTING.md and ARCHITECTURE.md.

Build, test, and check

pnpm install
pnpm build       # bundles grammars, then tsup
pnpm test        # vitest
pnpm lint        # eslint
pnpm typecheck   # tsc --noEmit
pnpm dev <args>  # run the CLI from source (tsx src/cli.ts)

A change is not done until pnpm test, pnpm lint, and pnpm typecheck all pass.

Prefer vg over grepping

This repo is the code-graph tool — use it on itself. Instead of blindly grepping or reading whole files, build the graph and query it. It is faster and costs fewer tokens:

pnpm dev build .
pnpm dev ask "where is the worker pool created?"
pnpm dev show <symbol>      # a symbol and its relations
pnpm dev impact <symbol>    # what breaks if I change this
pnpm dev path A B           # how two symbols connect
pnpm dev tree               # module/area overview

Use grep only for things the graph does not model (config files, comments, strings).

Determinism rules (non-negotiable)

Identical input must produce identical output (graph.json, reports). When editing anything that reaches serialized output:

  • Derive IDs from content (src/engine/hash.ts, ids.ts) — never from order, memory address, or time.
  • Sort before serializing; never emit raw Map/Set iteration order.
  • No Date.now(), no unseeded randomness (use src/engine/rng.ts), no reliance on filesystem enumeration order.
  • Add or update a test asserting stable output for any graph-affecting change.

Public-only rule

This is the open, Apache-2.0 distribution. Do not add references to private or internal Vibgrate systems, packages, or proprietary concepts (e.g. any internal specification format, an extract command, or commercial-only internals). Keep all code, docs, and comments scoped to the public CLI: deterministic code graph, local MCP server, drift reporting, version-correct library docs, and agent install. If a feature would require a non-public package, stop and leave it out.

Read the full file on GitHub · 88 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. 1mo ago First seen · 88 lines · 953 tokens per session scan A 196d6f727f39

Subscribe to this mod's changes

cli AGENTS.md is an instructions file published in the GitHub repository vibgrate/cli (5 stars, last pushed 2d ago), licensed Apache-2.0. It adds 953 tokens to every session, about $0.0038 per session on Opus 5.5. 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 2026-08-31.

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