agentplane AGENTS.md

A project instruction file for Agentplane, a tool that manages coding-agent work through approved plans, checks, and evidence that can be reviewed in Git.

In plain words
What is it for?
It is for projects that want agent changes to follow an agreed plan and include reviewable proof of verification.
Why use it?
It gives coding agents a defined workflow and leaves a record of what was planned, checked, and reviewed.

Instructions file for CodexOpenCode

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 instructions/basilisk-labs/agentplane/agents-md
Clone the repo
git clone --depth 1 https://github.com/basilisk-labs/agentplane

Made for: Codex, OpenCode.

Per session 9 This file is loaded in full into every session.
When invoked 9 The same file — it is already loaded in full.
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 $0.00009 $0.00009
Opus 5 $0.00005 $0.00005
Sonnet 5 $0.00002 $0.00002
Haiku 4.5 $0.00001 $0.00001

Measured 3d ago against content hash 7d56d563372a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

agentplane 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 3d 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 ¡ 1 lines

What it actually says

packages/agentplane/assets/AGENTS.md

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. 3d ago First seen ¡ 1 lines ¡ 9 tokens per session scan A 7d56d563372a

Subscribe to this mod's changes

agentplane AGENTS.md is an instructions file published in the GitHub repository basilisk-labs/agentplane (76 stars, last pushed 3d ago), licensed MIT. It adds 9 tokens to every session, about $0.0000 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.