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.
npx agentmods add instructions/dlxeva/fde-operator-os/agents-mdgit clone --depth 1 https://github.com/dlxeva/fde-operator-osWrote 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.
[](https://agentmods.dev/instructions/dlxeva/fde-operator-os/agents-md)<a href="https://agentmods.dev/instructions/dlxeva/fde-operator-os/agents-md"><img src="https://agentmods.dev/badge/instructions/dlxeva/fde-operator-os/agents-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.01460 | $0.01460 |
| Opus 5 | $0.00730 | $0.00730 |
| Sonnet 5 | $0.00292 | $0.00292 |
| Haiku 4.5 | $0.00146 | $0.00146 |
Grade A, and why
fde-operator-os 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.
How it starts
The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Repository instructions for Codex, Hermes, OpenClaw, Claude Code, and other coding agents working on this repository.
Mission
Maintain fde-operator-os as a compact, evidence-led Applied AI Operator OS that can:
- qualify an AI opportunity
- reconstruct operational reality
- design a bounded pilot
- make an explicit production-readiness decision
- operate and learn from a live loop
- distill reusable delivery and product assets
This is a skill, method, artifact, contract, and example repository. Keep application implementation in separate repositories.
Read First
Before changing behavior, structure, or templates, read:
README.mdSKILL.mdcontracts/stages.jsoncontracts/artifacts.jsonreferences/doctrine.mdreferences/fde-practice-system.md- the relevant child skill under
skills/ - the relevant template under
assets/templates/
For failure, governance, or production work, also read:
references/failure-patterns.mdreferences/operator-heuristics.mdreferences/engagement-modes.md
For runtime or packaging changes, also read:
references/runtime-portability.mdaliases/fde/SKILL.md
Repository Architecture
Keep these responsibilities distinct:
SKILL.md— canonical doctrine and routerskills/— lighter request-shaped execution skillsreferences/— reusable doctrine, practice system, heuristics, and failure patternsassets/templates/— human-readable operator and control artifactscontracts/stages.json— canonical seven-stage registrycontracts/artifacts.json— artifact, field, gate, alias, and source-of-truth registrycontracts/case-manifest.schema.json— case-index contractexamples/— synthetic, public, sanitized, or benchmark casestools/— repository validation and maintenance utilitiestests/— validation and contract regression tests.github/workflows/— continuous validationaliases/— runtime aliases and wrappersagents/— host-facing metadata
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.
- 4d ago First seen · 208 lines · 1,460 tokens per session scan A 58f4d01490e8
fde-operator-os AGENTS.md is an instructions file published in the GitHub repository dlxeva/fde-operator-os (11 stars, last pushed 25d ago), licensed MIT. It adds 1,460 tokens to every session, about $0.0073 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
next.js AGENTS.md
Instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.