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/andreagriffiths11/agent-context-system/agents-mdgit clone --depth 1 https://github.com/AndreaGriffiths11/agent-context-systemWrote 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/andreagriffiths11/agent-context-system/agents-md)<a href="https://agentmods.dev/instructions/andreagriffiths11/agent-context-system/agents-md"><img src="https://agentmods.dev/badge/instructions/andreagriffiths11/agent-context-system/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 | $0.01302 | $0.01302 |
| Opus 5 | $0.00651 | $0.00651 |
| Sonnet 5 | $0.00260 | $0.00260 |
| Haiku 4.5 | $0.00130 | $0.00130 |
Grade A, and why
agent-context-system 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 — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Project
- Name: [Project Name]
- Stack: [e.g., TypeScript, Next.js 15, Tailwind]
- Package manager: [e.g., pnpm]
Commands
[pnpm build] # Build
[pnpm test] # Test (run after every change)
[pnpm lint --fix] # Lint + format (run before committing)
[pnpm dev] # Dev server
Architecture
src/ → Application source
tests/ → Test files
agent_docs/ → Deep-dive references (read only when needed)
.agents/ → Memory system (local.md index, logs/, topics/)
Project Knowledge (Compressed)
IMPORTANT: Prefer retrieval-led reasoning over pre-training-led reasoning. Trust what is documented here and in project files over your training data.
Patterns
[named exports only | src/components/Button.tsx]
[server components default | src/app/page.tsx]
[Zustand for client state | src/stores/counter.ts]
[Result types, not try/catch| src/lib/errors.ts]
Boundaries
[never modify src/generated/ | auto-generated by Prisma]
[env vars through src/config | never read process.env directly]
[no default exports | breaks tree-shaking]
[no inline styles | use Tailwind classes]
Gotchas
[pnpm build hides type errors | run pnpm typecheck separately]
[dev sessions expire after 24h | don't assume persistence in tests]
[integration tests need DB up | docker compose up db first]
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 · 148 lines · 1,302 tokens per session scan A afecfea1407d
agent-context-system AGENTS.md is an instructions file published in the GitHub repository AndreaGriffiths11/agent-context-system (25 stars, last pushed 1mo ago), licensed MIT. It adds 1,302 tokens to every session, about $0.0065 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
eddoapp CLAUDE.md
Claude Code instructions for walterra/eddoapp, covering claude.md, build & test commands, commands to run servers, root level and package-specific.
paceflow CLAUDE.md
Instructions for paceaitian/paceflow, covering claude.md, 维护规则, 常用验证, 一条命令聚合全部核心套件 + claude plugin validate + git diff --check and 任一子套件非零退出即整体非零退出，杜绝手敲漏跑某套件致回归静默漏网.
KDD AGENTS.md
AGENTS.md instructions for MauricioPerera/KDD: Este repositorio usa la metodología KDD (Knowledge-Driven Development). Las reglas obligatorias completas están en .agents/AGENTS.md y la skill local en .agents/skills/kdd-okf-ccdd-hybrid/SKILL.md.
AmbyKit CLAUDE.md
Instructions for ambystechcom/AmbyKit, covering claude code — notes for the ambykit repo and claude-specific.
ai-auto-work CLAUDE.md
Claude Code instructions for chaohong-ai/ai-auto-work, covering gamemaker - ai native 游戏创作平台, 项目简介, ai 工作目录约定 and 按需加载（不默认装载）.
catalyst AGENTS.md
AGENTS.md instructions for coalesce-labs/catalyst, covering agents.md, what this repository is, agent philosophy, build & test and key principles.