agent: Instructions file for Codex

AGENTS.md

agent AGENTS.md is an instructions file for Codex, OpenCode from stakpak/agent. It costs 3,669 tokens per session, scanned A, original, Apache-2.0.

Project instructions for Stakpak, a Rust command-line DevOps agent that generates infrastructure code, troubleshoots Kubernetes, and automates deployments without production keys.

In plain words
What is it for?
They are for working on Stakpak’s terminal agent, asynchronous and interactive modes, tool execution, session recovery, MCP support, and deployment workflows.
Why use it?
They explain the repository layout and the main agent, tool, checkpoint, and MCP components before development begins.

Instructions file for CodexOpenCode

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

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

About the project

Stakpak is an open-source DevOps agent that runs continuously on a machine to keep applications running and automate infrastructure work. It helps teams generate infrastructure code, troubleshoot Kubernetes, configure CI/CD, and automate deployments while limiting an LLM’s access to production. The catalogue add-ons provide commands and instructions for operating Stakpak.

stakpak/agent · 1,855 stars · on GitHub · stakpak.dev

Reuse

Borrowing it

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

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 agent 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.

agentmods 80×15 button for agent AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/stakpak/agent/agents-md"><img src="https://agentmods.dev/badge/instructions/stakpak/agent/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,669 This file is loaded in full into every session.
When invoked 3,669 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 $0.03669 $0.03669
Opus 5.5 $0.01468 $0.01468
Sonnet 5.5 $0.00734 $0.00734
Haiku 4.5 $0.00367 $0.00367

Measured 2mo ago against content hash 376b61864d03, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent 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.

AGENTS.md · 335 lines

How it starts

The opening of the file, as written. The whole thing — 335 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Stakpak CLI

Agent guidance for working effectively in this codebase.

Project Overview

Stakpak is a security-hardened DevOps AI agent that runs in the terminal. It generates infrastructure code, debugs Kubernetes, configures CI/CD, and automates deployments — without giving the LLM keys to production.

Workspace Structure

cli/                          # Main binary crate (`stakpak`)
├── src/
│   ├── main.rs
│   ├── commands/
│   │   ├── agent/run/        # Agent execution engine
│   │   │   ├── mode_interactive.rs   # Interactive TUI agent loop
│   │   │   ├── mode_async.rs         # Async/headless mode
│   │   │   ├── stream.rs             # SSE stream processing
│   │   │   ├── checkpoint.rs         # Session checkpoint/resume
│   │   │   ├── tooling.rs            # Tool execution
│   │   │   └── helpers.rs            # Shared helpers
│   │   ├── acp/              # Agent Client Protocol (Zed integration)
│   │   ├── mcp/              # MCP server/proxy commands
│   │   ├── auth/             # Login/account commands (interactive + non-interactive setup)
│   │   ├── autopilot/        # Autopilot: init, up/down, status, schedule, channel
│   │   └── watch/            # Scheduled task runtime (internal, driven by autopilot)
│   ├── config/               # Configuration management
│   │   ├── file.rs           # ConfigFile with profiles + ensure_readonly()
│   │   ├── profile.rs        # ProfileConfig + readonly_profile()
│   │   └── types.rs          # ProviderType (Remote/Local)
│   └── onboarding/           # Interactive setup wizard + save_config.rs
tui/                          # TUI crate (ratatui-based)
├── src/
│   ├── app/events.rs         # InputEvent / OutputEvent enums
│   └── services/handlers/    # Event handlers (tool, shell, etc.)
libs/
├── ai/                       # LLM provider abstraction (`stakai`)
│   └── src/providers/
│       ├── anthropic/        # Anthropic API (convert, stream, types)
│       ├── openai/           # OpenAI-compatible API
│       └── gemini/           # Google Gemini API
├── api/                      # API client + local processing (`stakpak-api`)
│   └── src/local/
│       ├── context_managers/ # Message history reduction strategies
│       │   ├── task_board_context_manager.rs   # Preserves individual messages
│       │   ├── simple_context_manager.rs       # Flattens history to text
│       │   └── file_scratchpad_context_manager.rs
│       └── hooks/            # Context hooks (scratchpad, task board)
├── shared/                   # Shared types (`stakpak-shared`)
│   └── src/models/
│       ├── llm.rs            # LLMMessage, LLMMessageContent, provider configs
│       ├── stakai_adapter.rs # ChatMessage → StakAI Message conversion
│       └── integrations/
│           ├── openai.rs     # ChatMessage, ToolCall, Role types
│           └── mcp.rs        # MCP tool call result handling
└── mcp/                      # MCP client/server/proxy crates
    ├── client/
    ├── server/
    └── proxy/

Read the full file on GitHub · 335 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. 2mo ago First seen · 335 lines · 3,669 tokens per session scan A 376b61864d03

Subscribe to this mod's changes

agent AGENTS.md is an instructions file published in the GitHub repository stakpak/agent (1,855 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 3,669 tokens to every session, about $0.0147 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.

Related

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agent AGENTS.md next to 6 instructions from other repositories
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