rust-lib-template: Instructions file for Codex

AGENTS.md

rust-lib-template AGENTS.md is an instructions file for Codex, OpenCode from tyrchen/rust-lib-template. It costs 5,226 tokens per session, scanned A, original, MIT.

A set of project instructions for a Rust library template covering development workflow, code quality, documentation, and finishing work completely.

In plain words
What is it for?
Use it when working on the specified Rust library template, especially for following its workflow, reviewing code quality, and checking that requested work is complete.
Why use it?
It gives contributors consistent rules for maintainable code and prevents incomplete or temporary solutions from being treated as finished.

Instructions file for CodexOpenCode

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

This is tyrchen/rust-lib-template's own configuration. It tells Codex and OpenCode how to work on rust-lib-template 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 rust-lib-template configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tyrchen/rust-lib-template. 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/tyrchen/rust-lib-template/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/tyrchen/rust-lib-template

Made for: Codex, OpenCode.

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Per session 5,226 This file is loaded in full into every session.
When invoked 5,226 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 $0.05226 $0.05226
Opus 5.5 $0.02090 $0.02090
Sonnet 5.5 $0.01045 $0.01045
Haiku 4.5 $0.00523 $0.00523

Measured 2mo ago against content hash d94de0399865, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rust-lib-template 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 214 lines

How it starts

The opening of the file, as written. The whole thing — 214 lines — stays where its author put it; the contents beside it link to each section on GitHub.

{{ project-name }}

IMPORTANT: Never enter plan mode automatically!!! Never enter plan mode automatically!!!

Core Principles

Completion Discipline

  • Do Not Stop Early: If the user's requested outcome is not fully complete, do not stop at a draft, partial pass, or "good enough" result. Continue reviewing and improving until the request is genuinely handled or a concrete blocker requires user input.
  • Polish Bar: Before declaring work complete, ask whether the result is fully polished, concrete, correct, complete, and elegant. If there is doubt, review the work again and update it.
  • Honest Status: Do not claim a task is finished when it is only a first pass, scaffold, or partial draft. State the remaining gaps and keep working unless the user explicitly asks to pause.

Code Quality

  • SOLID and DRY Principles: Maintain clean, maintainable code following SOLID and DRY principles
  • No Incomplete Code: Never write TODO comments or temporary solutions. If you encounter such a situation:
    1. Stop the current task
    2. Review the problem globally
    3. Rethink the design and identify the best alternative solutions
    4. Proceed with the complete solution
  • Thorough Analysis: Always perform a comprehensive review and analysis of the problem before starting work
  • Do not suppress dead code, remove them; Unless explicitly requested, do not go through deprecation process, just remove the code that is no longer needed.

Development Workflow

  • Latest Dependencies: Always search the web for the latest dependencies or helm charts or resources and their current usage patterns. If doing a deep research, put the research doc under ./docs/research. You shall look into that directory before doing researches.
  • Automation via Makefile:
    • Explore existing Makefile targets and use them accordingly
    • For new automation tasks, always add a Makefile target instead of creating shell scripts
    • Keep automation consistent and discoverable

Read the full file on GitHub · 214 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 · 214 lines · 5,226 tokens per session scan A d94de0399865

Subscribe to this mod's changes

rust-lib-template AGENTS.md is an instructions file published in the GitHub repository tyrchen/rust-lib-template (51 stars, last pushed 1mo ago), licensed MIT. It adds 5,226 tokens to every session, about $0.0209 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.

Related

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