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/keyvaluesoftwaresystems/agent-opfor/agents-mdgit clone --depth 1 https://github.com/KeyValueSoftwareSystems/agent-opforWhat 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 | $0.08563 | $0.08563 |
| Opus 5 | $0.04281 | $0.04281 |
| Sonnet 5 | $0.01713 | $0.01713 |
| Haiku 4.5 | $0.00856 | $0.00856 |
Grade A, and why
agent-opfor 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 3d 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.
The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- 3d ago First seen · 412 lines · 8,563 tokens per session scan A a17dd32b14f8
agent-opfor AGENTS.md is an instructions file published in the GitHub repository KeyValueSoftwareSystems/agent-opfor (576 stars, last pushed 15d ago), with no licence file. It adds 8,563 tokens to every session, about $0.0428 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
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NuGuard backend microservice endpoint reference — correct URLs, route prefixes, auth headers, and request/response shapes for all 6 services. Use this when writing code that calls or tests any NuGuard API endpoint.
nuguard copilot-instructions.md
Copilot instructions for NuGuardAI/nuguard, covering github copilot instructions, project overview, development commands, package layout and coding style.
nuguard CLAUDE.md
Claude Code instructions for NuGuardAI/nuguard, covering claude.md, commands, install dependencies, run all tests and run a single test file or test by name.
nuguard postgresql-db-guidelines.instructions.md
Use PostgreSQL-specific best practices when creating new databases/instances, schemas, migrations, or SQL. Covers JSONB, arrays, custom types, indexing, performance, and RLS/security.
AgentHound CLAUDE.md
Instructions for adithyan-ak/AgentHound, covering agenthound maintainer contract, required checks, hard boundaries, core invariants and module registration.
guardana CLAUDE.md
Instructions for guardana/guardana, covering claude.md — agent guidance for this repository, what this project is, what "done" means right now, product principles — they outrank convenience, in every 0.x and architecture in brief.