What is pz AGENTS.md?

A repository guide for agents building a Zig command-line tool with a text-based interface. It defines the project’s rules, including how to read files, report progress, manage changes, and coordinate parallel work.

Use it when planning changes, inspecting code, running multi-agent work, or creating and syncing changes with Jujutsu.

It keeps agent work consistent and makes important decisions visible instead of relying on hidden assumptions or outdated compatibility code.

How joelreymont/pz configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to joelreymont/pz. 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/joelreymont/pz/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/joelreymont/pz

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/joelreymont/pz/agents-md/github.svg)](https://agentmods.dev/instructions/joelreymont/pz/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/joelreymont/pz/agents-md"><img src="https://agentmods.dev/badge/instructions/joelreymont/pz/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

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

Your own site · 80×15

<a href="https://agentmods.dev/instructions/joelreymont/pz/agents-md"><img src="https://agentmods.dev/badge/instructions/joelreymont/pz/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,183 This file is loaded in full into every session.

When invoked 1,183 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.

Model	Per session	Once invoked
Fable 5.1	$0.01183	$0.01183
Opus 5.5	$0.00473	$0.00473
Sonnet 5.5	$0.00237	$0.00237
Haiku 4.5	$0.00118	$0.00118

Measured 2mo ago against content hash 8bdc3f56536f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pz 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 · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Rules

Mission

Build pz: a Zig CLI harness with TUI. Do not optimize for compatibility with pi.

Core Constraints

Correctness over speed.
Use hard cutovers only: no legacy support, compatibility shims, or fallback paths.
No silent fallbacks.
Root-cause fixes only.
Keep names short and clear.
Keep hot paths allocation-aware.

Read Window Rule

Use rg -n to find the anchor first.
Default file reads to a 20-line window around the anchor.
If that is insufficient, double the window: 40, then 80, then 160.
Only start wider when it is obvious up front that 20 lines cannot contain the relevant construct.

Trace Rule

Emit terse commentary traces during active work so the user can see progress.
Include a trace before substantial reads, edits, test runs, merges, and agent launches.
Keep traces factual and short.

Source Control

Use jj, not git.

New change: jj new
Describe change: jj describe -m "<imperative message>"
Sync: jj git fetch / jj git push

Parallel Work (Required)

For multi-agent work, use separate jj workspaces.

Default shape:

Keep 1 local lane for integration, rebases, merges, flakes, and shared-surface debugging.
Launch only 2-3 worker lanes by default.
Expand past 3 workers only if the next dots are truly disjoint in files and dependencies.
Create workspaces under .jj-ws/ (see jj skill for commands).
Assign file ownership per workspace.
Do not edit files owned by another workspace.
Reconcile by rebasing/squashing after each track stabilizes.

File Ownership Rule

If a file is touched by another active agent, stop and reassign before editing. Do not launch overlapping dots in parallel just because they look “small”. If dots overlap in runtime/provider/session/core surfaces, serialize them unless a prior dot closes the dependency.

Commit Rule

Only include files changed by the current agent/task. No broad staging.

Agent Reporting Rule

Agents must report what they CHANGED (files, lines, insertions/deletions), not claim things were "already done." If no changes needed, explain why with file:line evidence. Never declare victory without a diff.

Read the full file on GitHub · 122 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.

2mo ago First seen · 122 lines · 1,183 tokens per session scan A 8bdc3f56536f

Subscribe to this mod's changes

pz AGENTS.md is an instructions file published in the GitHub repository joelreymont/pz (100 stars, last pushed 7mo ago), licensed MIT. It adds 1,183 tokens to every session, about $0.0047 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 2026-08-30.

pz AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
pz AGENTS.mdjoelreymont/pz	Instructions file	100	7mo ago	MIT	A	1,183	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

pz: Instructions file for Codex