Borrowing it
Nothing to install: this file belongs to nestharus/agent-implementation-skill. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/nestharus/agent-implementation-skill/main/AGENTS.mdgit clone --depth 1 https://github.com/nestharus/agent-implementation-skillWrote 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/nestharus/agent-implementation-skill/agents-md)<a href="https://agentmods.dev/instructions/nestharus/agent-implementation-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/nestharus/agent-implementation-skill/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>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.
<a href="https://agentmods.dev/instructions/nestharus/agent-implementation-skill/agents-md"><img src="https://agentmods.dev/badge/instructions/nestharus/agent-implementation-skill/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.03952 | $0.03952 |
| Opus 5.5 | $0.01581 | $0.01581 |
| Sonnet 5.5 | $0.00790 | $0.00790 |
| Haiku 4.5 | $0.00395 | $0.00395 |
Grade A, and why
agent-implementation-skill 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 2mo 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 — 381 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent-Implementation-Skill
Project Structure
├── governance/ # Project governance layer
│ ├── problems/index.md # Why this code exists (PRB-XXXX)
│ ├── patterns/index.md # How we solve recurring problems (PAT-XXXX)
│ ├── audit/prompt.md # Audit process for external models
│ ├── audit/history.md # Cumulative audit log (105 rounds)
│ ├── design/ # Design rationale documents
│ └── risk-register.md # Landed-code risks and debt
├── philosophy/ # Values and principles
│ ├── design-philosophy-analysis.md
│ ├── design-philosophy-notes.md
│ ├── profiles/PHI-global.md
│ └── region-profile-map.md
├── system-synthesis.md # Architecture + governance connections
├── src/ # Deployed skill code
│ ├── <system>/agents/ # Agent definitions owned by each system (57 agents across 15 systems)
│ ├── scripts/ # Runtime orchestration scripts
│ ├── SKILL.md # Skill entry point
│ ├── implement.md # Implementation pipeline
│ └── ... # Other skill docs
├── evals/ # Evaluation scenarios
└── tests/ # Test suite
Running Sub-Agents
Sub-agents are invoked via the agents binary (~/.local/bin/agents), not through Claude Code's built-in Agent tool. The binary is the CLI mode of Oulipoly Agent Runner.
CLI Syntax
agents [OPTIONS] [AGENT] [PROMPT...]
| Option | Description |
|---|---|
-m, --model <MODEL> |
Execute a model directly (no agent file) |
-a, --agent-file <AGENT_FILE> |
Path to an agent .md file (any location) |
-f, --file <FILE> |
Read prompt from file |
-p, --project <PROJECT> |
Working directory for the subprocess |
--models-dir <MODELS_DIR> |
Override models directory |
--agents-dir <AGENTS_DIR> |
Override agents directory |
Prompt resolution priority: --file > positional arguments > stdin
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.
- 2mo ago First seen · 381 lines · 3,952 tokens per session scan A 9eec83521fb2
agent-implementation-skill AGENTS.md is an instructions file published in the GitHub repository nestharus/agent-implementation-skill (3 stars, last pushed 1mo ago), licensed MIT. It adds 3,952 tokens to every session, about $0.0158 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 2026-08-31.
agent-implementation-skill AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| agent-implementation-skill AGENTS.mdnestharus/agent-implementation-skill | Instructions file | 3 | 1mo ago | MIT | A | 3,952 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 275k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |