pi-agent-config: Instructions file for Codex

AGENTS.md

pi-agent-config AGENTS.md is an instructions file for Codex, OpenCode from thiago-ss/pi-agent-config. It costs 511 tokens per session, scanned A, original, MIT.

A set of working instructions for the pi-agent-config project, covering how its coding agent should plan, change, test, and review code.

In plain words
What is it for?
Use it when modifying pi-agent-config to choose an appropriate workflow, structure implementation work, run tests, review changes, and follow project-specific safety rules.
Why use it?
It gives contributors a consistent project workflow and records rules such as keeping changes small and protecting authentication files.

Instructions file for CodexOpenCode

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

This is thiago-ss/pi-agent-config's own configuration. It tells Codex and OpenCode how to work on pi-agent-config 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-agent-config configures →

Reuse

Borrowing it

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

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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Per session 511 This file is loaded in full into every session.
When invoked 511 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 $0.00511 $0.00511
Opus 5.5 $0.00204 $0.00204
Sonnet 5.5 $0.00102 $0.00102
Haiku 4.5 $0.00051 $0.00051

Measured 2mo ago against content hash 0a3bd8c3b772, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pi-agent-config 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 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 · 44 lines

How it starts

The opening of the file, as written. The whole thing — 44 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pi agent instructions

Keep this file short.

General

  • Prefer small, targeted changes.
  • Use read to inspect files and edit for precise replacements.
  • Use write only for new files or full rewrites.
  • Do not modify auth.json unless explicitly asked.

Workflow selection

  • Think first: choose the lightest process that fits the task.
  • Use GSD for broad, multi-step, uncertain, or high-risk work.
  • If GSD fits, use the appropriate /gsd-* flow; prefer the smallest useful one.
  • For new or non-trivial project work in Pi, default to the Agent Skills flow: using-agent-skills → spec-driven-development → planning-and-task-breakdown → incremental-implementation → test-driven-development (then code-review-and-quality before merge).
  • Shortcut mapping: /spec = spec-driven-development, /plan = planning-and-task-breakdown, /build = incremental-implementation, /test = test-driven-development, /review = code-review-and-quality, /ship = shipping-and-launch.
  • If GSD does not fit, use mini-RPI: research → plan → implement.

Architecture

  • Follow SOLID.
  • Favor separation of concerns, clear boundaries, and reusable abstractions.
  • Extract reusable code; avoid duplication, god objects, and tangled logic.
  • Prefer composition, small functions, and explicit interfaces.

Pi-specific work

  • When working on Pi internals, read the Pi docs first:
    • ~/.nvm/versions/node/v25.8.0/lib/node_modules/@mariozechner/pi-coding-agent/README.md
    • and the relevant files in .../docs/
  • Follow any linked .md files before implementing changes.
  • Validate TypeScript changes by loading them with Pi's Jiti/runtime when practical.

Local config areas

  • ~/.pi/agent/extensions/ for extensions
  • ~/.pi/agent/themes/ for themes
  • ~/.pi/agent/settings.json for agent settings

Extension notes

  • Keep footer/UI changes consistent with the current theme and the user's requested density.
  • If removing metrics or UI elements, also remove related shortcuts/help text and unused code paths.

Read the full file on GitHub · 44 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 First seen · 44 lines · 511 tokens per session scan A 0a3bd8c3b772

Subscribe to this mod's changes

pi-agent-config AGENTS.md is an instructions file published in the GitHub repository thiago-ss/pi-agent-config (1 stars, last pushed 7mo ago), licensed MIT. It adds 511 tokens to every session, about $0.0020 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-agent-config AGENTS.md compared with instructions from other repositories

pi-agent-config AGENTS.md next to 6 instructions from other repositories
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pi-agent-config AGENTS.mdthiago-ss/pi-agent-configInstructions file17mo agoMITA511Codex, OpenCode
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