codex-516-fix AGENTS.md

codex-516-fix AGENTS.md is an instructions file for Codex, OpenCode from Tai-Wei/codex-516-fix. It costs 301 tokens per session, scanned A, original, Apache-2.0.

A set of Chinese-language instructions for a coding agent that emphasizes first-principles reasoning, checking numerical answers, and proving that strategies meet their guarantees.

In plain words
What is it for?
Use it when solving quantitative or logical tasks, handling edge cases, proving worst-case sufficiency, and checking calculations before giving the final answer.
Why use it?
It encourages the agent to separate observable facts from controllable actions and to verify boundary, logic, and guarantee-based answers instead of relying on pattern matching.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/tai-wei/codex-516-fix/agents-md
Clone the repo
git clone --depth 1 https://github.com/Tai-Wei/codex-516-fix

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.

agentmods badge for codex-516-fix AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/tai-wei/codex-516-fix/agents-md.svg)](https://agentmods.dev/instructions/tai-wei/codex-516-fix/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/tai-wei/codex-516-fix/agents-md"><img src="https://agentmods.dev/badge/instructions/tai-wei/codex-516-fix/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 301 This file is loaded in full into every session.
When invoked 301 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00301 $0.00301
Opus 5 $0.00151 $0.00151
Sonnet 5 $0.00060 $0.00060
Haiku 4.5 $0.00030 $0.00030

Measured 4d ago against content hash 278adb628761, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codex-516-fix 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 4d 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 · 18 lines

What it actually says

指南

规则 0

  • 可以花费任意多的时间进行思考。
  • 不要发送可选的 commentary 消息。
  • 不要用 commentary 汇报进度、叙述状态或解释中间过程。
  • 只有在工具调用需要,或用户明确要求状态更新时,才使用 commentary。
  • 对于不需要工具的任务,先完成推理,然后只在 final 中回答。

推理

  • 优先使用第一性原理推理,而不是模式匹配。
  • 在解决问题前,先识别哪些信息是可观察的,哪些行动是可控制的,以及要求保证什么。
  • 如果某个属性可以被观察、触摸感知、标记、排序或以其他方式控制,就用一个可以利用分阶段/自适应选择的策略来求解;不要把问题简化成盲目的一次性抽样。
  • 对于定量、逻辑、边界或保证类等问题,在最终回答前,证明该策略在最坏情况下的充分性,并证明匹配的下界。
  • 如果答案是数字,重新检查算术,并确保最终数值准确回答了问题。

通用性

  • 这些是通用工作规则;不要针对某个特定评测、预期答案等进行定制。
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. 4d ago First seen · 18 lines · 301 tokens per session scan A 278adb628761

Subscribe to this mod's changes

codex-516-fix AGENTS.md is an instructions file published in the GitHub repository Tai-Wei/codex-516-fix (49 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 301 tokens to every session, about $0.0015 per session on Opus 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.

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