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.
npx agentmods add instructions/danielcherubini/pi-archimedes/agents-mdgit clone --depth 1 https://github.com/danielcherubini/pi-archimedesWrote 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.
[](https://agentmods.dev/instructions/danielcherubini/pi-archimedes/agents-md)<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>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.
| Model | Per session | Once 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 |
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) 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, thinkingpackages/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:/mcpcommand 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):
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, standalonepi install @pi-archimedes/<name>loads nothing- Internal deps as
"@pi-archimedes/core": "workspace:*"(pnpm rewrites this to a real version at publish time) peerDependenciesfor@earendil-works/pi-coding-agent/pi-tui/pi-aias needed
meta/package.json— add"@pi-archimedes/<name>": "workspace:*"todependenciesmeta/src/index.ts— import and register the new package's entry, gated byisPluginEnabled("<name>")(the single global gate frommeta/src/plugins.ts)meta/src/plugins.ts— add the package to thePLUGINSmanifest (id,label,description,namespace(e.g.archimedes.<newkey>),load()). A manifest entry is required: registration alone is not enough — the gate,/archimedessettings items, and shutdown all key off the manifest, and a missing entry means the package also disappears from the/pluginsmenu. (There is nodefaultEnabledany more — the manifest entry carries the settings-namespace key the gate reads, and no plugin is off-by-default today.).github/workflows/release.yml— add apnpm --filter "@pi-archimedes/<name>" publish --access public --no-git-checksline, placed after its internal deps and beforemetaAGENTS.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 lineREADME.md— add a feature section, a line in the monorepo layout tree, api install @pi-archimedes/<name>line under "install selectively", and a settings-table entry if it has settings
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.
- 6d ago First seen · 138 lines · 2,474 tokens per session scan B 91b0175d0e74
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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).