fatecat: Instructions file for Codex

AGENTS.md

fatecat AGENTS.md is an instructions file for Codex, OpenCode from tradecatlabs/fatecat. It costs 1,639 tokens per session, scanned A, original, MIT.

A repository-wide instruction file for FateCat, a platform that provides reusable calculation and explanation services for agent and application developers.

In plain words
What is it for?
It guides work across calculation providers, evidence-based explanations, deployment, contracts, tests, documentation, and web-interface design.
Why use it?
It explains the project's canonical folders, service boundaries, and rules for reusing existing capabilities before writing new code.

Instructions file for CodexOpenCode

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

This is tradecatlabs/fatecat's own configuration. It tells Codex and OpenCode how to work on fatecat 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 fatecat configures →

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /home/lenovo/.codex/Design.md.

Reuse

Borrowing it

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

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 fatecat AGENTS.md

README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/tradecatlabs/fatecat/agents-md"><img src="https://agentmods.dev/badge/instructions/tradecatlabs/fatecat/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,639 This file is loaded in full into every session.
When invoked 1,639 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 $0.01639 $0.01639
Opus 5.5 $0.00656 $0.00656
Sonnet 5.5 $0.00328 $0.00328
Haiku 4.5 $0.00164 $0.00164

Measured 1mo ago against content hash 7f8ff72cc2f4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

fatecat 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 1mo 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 · 117 lines

How it starts

The opening of the file, as written. The whole thing — 117 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md - FateCat Enterprise Repo

目录用途

当前根目录是 FateCat 企业级系统仓库真相源:结构采用 apps、ai、domains、platform、infra、contracts、catalog、governance、shared、tools、docs、scripts、tests canonical roots;运行、测试、导出和治理入口全部从企业根解析。

项目主旨:FateCat 是面向 Agent 与应用开发者的测算基础设施,提供统一的能力协议、可复现计算核心、证据化解释层和多端交付接口。八字、紫微、黄历、梅花等体系都是独立 capability provider;复用成熟开源和稳定平台能力先于自写。

目录结构

fatecat/
├── AGENTS.md
├── compose.yaml
├── DEBUG.md
├── llms.txt
├── README.md
├── REVIEW.md
├── SKILL.md
├── apps/
├── ai/
├── domains/
│   ├── fate-analysis/
│   │   └── services/fate-core/
│   │       ├── src/
│   │       └── tests/
│   └── experience-delivery/
│       └── services/fatecat-delivery/
│           ├── src/
│           ├── scripts/
│           └── tests/
├── platform/
├── infra/
│   └── docker/
│       ├── Dockerfile.delivery
│       └── entrypoint.delivery.sh
├── contracts/
├── catalog/
├── governance/
├── shared/
├── tools/
├── docs/
│   └── deployment/
│       └── huggingface-space.md
├── tests/
├── .github/
│   ├── AGENTS.md
│   └── workflows/
│       ├── acceptance.yml
│       ├── container.yml
│       ├── hf-space-deploy.yml
│       └── quick.yml
├── references/
│   ├── commands.md
│   ├── execution-playbook.md
│   └── troubleshooting.md
└── scripts/
│   ├── acceptance.sh
│   ├── check-structure.sh
│   ├── container-build.sh
│   ├── container-release.sh
│   ├── container-smoke.sh
│   ├── check-export-hygiene.sh
│   ├── check-source-hygiene.sh
│   ├── clean-runtime.sh
│   ├── delivery-smoke.sh
│   ├── export-runtime.sh
│   ├── live-bot-smoke.sh
│   ├── production-readiness.sh
│   ├── preflight.sh
│   └── vendor-health.sh

职责边界

  • SKILL.md:标准 skill 入口说明。
  • compose.yaml:本地和单机容器编排入口,只编排 delivery 容器与运行态 volume。
  • DEBUG.md:当前调试证据、根因和回归验证记录;只承载已复现问题的诊断闭环。
  • llms.txt:公开站点根级 AI/Agent 发现文档;集中说明 Web/API 输入、端点、证据、存储和风险边界,避免把机器契约全部堆在 Web 顶部表格。
  • REVIEW.md:当前仓库审计结果与 release gate 结论;只记录证据、风险与交接,不承载业务源码。
  • apps/:用户体验入口和渠道壳层。
  • ai/:Agent、skill、Prompt、评估和 AI 监管相关入口。
  • domains/:领域服务根;当前承载 fate-core 与 fatecat-delivery 两个生产候选服务源码、契约和测试入口。
  • platform/:Golden Path、CI/CD、供应链和开发者平台能力。
  • infra/:环境、容器、数据库、运行准入、安全和观测期望状态。
  • contracts/:API、数据集、capability、profile、evidence 和策略契约。
  • catalog/:组件发现、owner、生命周期和依赖关系。
  • governance/:标准、流程、ADR、风险、门禁、baseline evidence、任务和迁移账本。
  • shared/:真实复用后的薄共享库,不作为 common 垃圾桶。
  • tools/:迁移工具、参考仓和供应链快照。
  • docs/:人类文档入口,不替代机器契约和治理证据;docs/deployment/ 说明用户和维护者的云端部署路径。
  • tests/:仓库级结构、契约、导出和跨服务测试入口。
  • .github/:GitHub Actions 远端验收配置;只调用仓库脚本,不保存业务代码或 secret。
  • references/:长文档、阶段门禁、输入输出契约、迁移与排障材料;其中 execution-playbook.md 是统一执行顺序真相源。
  • scripts/:本地可重复执行入口;其中 preflight.sh 是默认预检入口,acceptance.sh 是发布门禁入口,check-structure.sh 是企业结构门禁,container-*.sh 是容器构建、烟雾和发布入口。

Read the full file on GitHub · 117 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. 1mo ago First seen · 117 lines · 1,639 tokens per session scan A 7f8ff72cc2f4

Subscribe to this mod's changes

fatecat AGENTS.md is an instructions file published in the GitHub repository tradecatlabs/fatecat (202 stars, last pushed 1mo ago), licensed MIT. It adds 1,639 tokens to every session, about $0.0066 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.

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