pi-archimedes AGENTS.md

pi-archimedes AGENTS.md is an instructions file for Codex, OpenCode from danielcherubini/pi-archimedes. It costs 2,474 tokens per session, scanned B, original, MIT.

Repository guidance for Archimedes, a monorepo containing multiple related packages. A monorepo is one repository that stores several packages or applications, often with shared code and dependencies.

In plain words
What is it for?
Use it when creating a package, changing shared components, publishing safely, or working on features such as diffs, images, todos, notifications, MCP connections, or privileged commands.
Why use it?
It maps package dependencies and describes the checks needed when adding or publishing packages, reducing the risk of breaking other parts of the repository.

Instructions file for CodexOpenCode

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

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/danielcherubini/pi-archimedes/agents-md
Clone the repo
git clone --depth 1 https://github.com/danielcherubini/pi-archimedes

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 pi-archimedes AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/danielcherubini/pi-archimedes/agents-md.svg)](https://agentmods.dev/instructions/danielcherubini/pi-archimedes/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/danielcherubini/pi-archimedes/agents-md"><img src="https://agentmods.dev/badge/instructions/danielcherubini/pi-archimedes/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,474 This file is loaded in full into every session.
When invoked 2,474 The same file — it is already loaded in full.
Security scan B 1 finding. 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 5.1 $0.02474 $0.02474
Opus 5 $0.01237 $0.01237
Sonnet 5 $0.00495 $0.00495
Haiku 4.5 $0.00247 $0.00247

Measured 6d ago against content hash 91b0175d0e74, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade B, and why

pi-archimedes AGENTS.md scanned grade B with 1 finding 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 6d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- `packages/sudo` — safe privileged execution (sudo_exec tool, masked password prompt, interactive-sudo bash guard) (depends on core)
AGENTS.md · 138 lines

How it starts

The opening of the file, as written. The whole thing — 138 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Rules for AI agents working on this monorepo.

Monorepo Structure

  • packages/core — bus, chrome, text/color utils, editor, message, startup, thinking
  • packages/ask — structured question tool with tabbed flow and inline notes (depends on core)
  • packages/footer — status bar (depends on core)
  • packages/diff — Shiki-powered diff rendering (standalone)
  • packages/image-paste — clipboard image paste (standalone)
  • packages/subagent — subagent dispatch with live TUI streaming and cost tracking (depends on core, todo)
  • packages/todo — todo list tool with auto-clear and subagent visibility (depends on core)
  • packages/notify — delayed desktop notifications with circuit breaker (depends on core)
  • packages/session-name — auto session naming (depends on core)
  • packages/mcp — MCP client adapter (feature parity with pi-mcp-adapter: /mcp command family, management + setup panels, OAuth, metadata cache) (depends on core)
  • packages/sudo — safe privileged execution (sudo_exec tool, masked password prompt, interactive-sudo bash guard) (depends on core)
  • meta — orchestrator + composed settings (depends on all eleven)

Adding a New Package

When a new package is added under packages/<name>/, update all of these or it will silently break the release / pi install flow (this is exactly how todo got missed):

  1. packages/<name>/package.json — must include:
    • "version" matching the shared monorepo version
    • "keywords": ["pi-package"]
    • "files": ["src"]
    • "pi": { "extensions": ["./src/index.ts"] }required; without it, standalone pi install @pi-archimedes/<name> loads nothing
    • Internal deps as "@pi-archimedes/core": "workspace:*" (pnpm rewrites this to a real version at publish time)
    • peerDependencies for @earendil-works/pi-coding-agent / pi-tui / pi-ai as needed
  2. meta/package.json — add "@pi-archimedes/<name>": "workspace:*" to dependencies
  3. meta/src/index.ts — import and register the new package's entry, gated by isPluginEnabled("<name>") (the single global gate from meta/src/plugins.ts)
  4. meta/src/plugins.ts — add the package to the PLUGINS manifest (id, label, description, namespace (e.g. archimedes.<newkey>), load()). A manifest entry is required: registration alone is not enough — the gate, /archimedes settings items, and shutdown all key off the manifest, and a missing entry means the package also disappears from the /plugins menu. (There is no defaultEnabled any more — the manifest entry carries the settings-namespace key the gate reads, and no plugin is off-by-default today.)
  5. .github/workflows/release.yml — add a pnpm --filter "@pi-archimedes/<name>" publish --access public --no-git-checks line, placed after its internal deps and before meta
  6. AGENTS.md — add to the Monorepo Structure list; bump the "all N package versions" count and the "N package directories" type-check count in Release Steps; add the package to the publish-order line
  7. README.md — add a feature section, a line in the monorepo layout tree, a pi install @pi-archimedes/<name> line under "install selectively", and a settings-table entry if it has settings

Read the full file on GitHub · 138 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. 6d ago First seen · 138 lines · 2,474 tokens per session scan B 91b0175d0e74

Subscribe to this mod's changes

pi-archimedes AGENTS.md is an instructions file published in the GitHub repository danielcherubini/pi-archimedes (126 stars, last pushed 4d ago), licensed MIT. It adds 2,474 tokens to every session, about $0.0124 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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