pi-ensemble: Instructions file for Codex

AGENTS.md

pi-ensemble AGENTS.md is an instructions file for Codex, OpenCode from randomm/pi-ensemble. It costs 21,771 tokens per session, scanned A, original, Apache-2.0.

Repository-specific instructions for developing pi-ensemble, including required checks before pushing code. A repository is a project's tracked source files, and a pre-push check runs before changes are uploaded.

In plain words
What is it for?
Use it when changing pi-ensemble to follow its build, type-checking, linting, and smoke-test process and its separate change paths.
Why use it?
It makes the project's quality rules explicit and prevents avoidable failures from reaching the shared repository.

Instructions file for CodexOpenCode

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

This is randomm/pi-ensemble's own configuration. It tells Codex and OpenCode how to work on pi-ensemble 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 pi-ensemble configures โ†’

Reuse

Borrowing it

Nothing to install: this file belongs to randomm/pi-ensemble. 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/randomm/pi-ensemble/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/randomm/pi-ensemble

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.

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README.md
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Or the 80ร—15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80ร—15 button for pi-ensemble AGENTS.md

Your own site ยท 80ร—15
<a href="https://agentmods.dev/instructions/randomm/pi-ensemble/agents-md"><img src="https://agentmods.dev/badge/instructions/randomm/pi-ensemble/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 21,771 This file is loaded in full into every session.
When invoked 21,771 The same file โ€” it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file โ€” 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 $0.21771 $0.21771
Opus 5.5 $0.08708 $0.08708
Sonnet 5.5 $0.04354 $0.04354
Haiku 4.5 $0.02177 $0.02177

Measured 2mo ago against content hash c5dc14446b4e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pi-ensemble AGENTS.md scanned grade A with 0 findings against 26 rules in 11 categories โ€” prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency โ€” measured 2mo 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 ยท 633 lines

How it starts

The opening of the file, as written. The whole thing โ€” 633 lines โ€” stays where its author put it; the contents beside it link to each section on GitHub.

Agent Guidelines for pi-ensemble

This document is auto-loaded by Pi when any agent works inside this repo. It establishes the rules, conventions, and project-specific constraints all development work follows. Read once; apply throughout.

โ„น๏ธ Recursive context. pi-ensemble both uses Pi (when you, the agent, run inside it) and configures Pi (its actual purpose โ€” building role prompts and an orchestrator extension). When this file says "the agent", it means you, the one reading this. When it says "subagents" / "role prompts" / "specialists", it means pi-ensemble's product surface.


1. ๐Ÿšจ Pre-Push Quality Gates (BLOCKING)

CI is for VERIFICATION, not DISCOVERY. All gates pass locally before git push. Never push to "see if CI catches anything."

# 1. Build prompts (repo root) โ€” generates dist/prompts/standard/*.md
bun run build

# 2. Type-check, lint, and smoke-test (extension/)
cd extension && bunx tsc --noEmit && bun run check && \
  for t in smoke-tests/test-*.ts; do \
    case "$t" in *-live.ts) continue;; esac; \
    bun run "$t" || exit 1; \
  done

If any check fails: fix the issue, re-run, only then push. Do NOT:

  • โŒ Use --no-verify, --no-gpg-sign, or skip hooks
  • โŒ Add // biome-ignore or // @ts-ignore to bypass โ€” fix the code
  • โŒ Push and hope CI catches it
  • โŒ Run only the smoke test that exercises your change โ€” they're all fast offline

Live smoke tests are NOT in the pre-push set

Files matching extension/smoke-tests/test-*-live.ts spawn real Pi children and cost real tokens (a few cents per run on Cerebras GLM-4.7). Run them only when:

  • You changed spawn.ts (changes to child process behaviour)
  • You bumped the Pi version pin in extension/package.json
  • You're investigating a production-only failure mode

CI runs the offline tests only. Live tests are dev-machine only.

Six-pass review findings are blocking at MEDIUM severity and above. The fix loop continues until all MEDIUM, HIGH, and CRITICAL findings are resolved. Only LOW findings may be deferred or overridden with user confirmation.

Read the full file on GitHub ยท 633 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. 2mo ago Changed ยท +2 lines ยท +113 tokens per session c5dc14446b4e
  2. 2mo ago First seen ยท 631 lines ยท 21,658 tokens per session scan A f456ddbfa3ed

Subscribe to this mod's changes

pi-ensemble AGENTS.md is an instructions file published in the GitHub repository randomm/pi-ensemble (5 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 21,771 tokens to every session, about $0.0871 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.

Related

pi-ensemble AGENTS.md compared with instructions from other repositories

pi-ensemble AGENTS.md next to 6 instructions from other repositories
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pi-ensemble AGENTS.mdrandomm/pi-ensembleInstructions file52mo agoApache-2.0A21,771Codex, OpenCode
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