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bosun: Instructions file for Codex

AGENTS.md

bosun AGENTS.md is an instructions file for Codex, OpenCode from virtengine/bosun. It costs 857 tokens per session, scanned A, original, Apache-2.0.

A project guide for Bosun, an agent system. It points developers to the right modules and local instruction files for areas such as workflows, tasks, workspaces, servers, and shell executors.

In plain words
What is it for?
Use it to identify where a feature belongs, edit the relevant module, and follow the suggested testing and build commands.
Why use it?
It reduces the time spent locating the correct code and project rules before making a change.

Instructions file for CodexOpenCode

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

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

not rated 284repo +1 yesterday A scan 857 tokens original Apache-2.0
View source ↗ virtengine/bosun bosun.engineer
Reuse

Borrowing it

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

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 bosun AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/virtengine/bosun/agents-md"><img src="https://agentmods.dev/badge/instructions/virtengine/bosun/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.

agentmods 80×15 button for bosun AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/virtengine/bosun/agents-md"><img src="https://agentmods.dev/badge/instructions/virtengine/bosun/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 857 This file is loaded in full into every session.
When invoked 857 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 $0.00857 $0.00857
Opus 5.5 $0.00343 $0.00343
Sonnet 5.5 $0.00171 $0.00171
Haiku 4.5 $0.00086 $0.00086

Measured 1mo ago against content hash d04dcfe01a6c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bosun 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 1mo 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 · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bosun Agent Guide

Scope

Use this file as the top-level router for work inside bosun/. Open the closest module AGENTS.md before editing.

Start Fast

  1. Confirm task area.
  2. Jump to the mapped module below.
  3. Edit only that module plus directly impacted callers/tests.
  4. Run targeted tests, then npm test, then npm run build.

Core Entry Points

  • CLI: cli.mjs
  • Setup: setup.mjs
  • Monitor loop: infra/monitor.mjs
  • Config loader: config/config.mjs

Module Index

  • agent/AGENTS.md - agent pool, prompts, hooks, autofix, fleet coordination.
  • infra/AGENTS.md - monitor loop, health/recovery, runtime plumbing.
  • workflow/AGENTS.md - workflow engine, nodes, adapters.
  • workflow-templates/AGENTS.md - template library used by workflow engine.
  • task/AGENTS.md - task execution, claims, context, archiving.
  • workspace/AGENTS.md - workspace/worktree/shared-state lifecycle.
  • kanban/AGENTS.md - Kanban adapter layer (GitHub, Jira, internal).
  • server/AGENTS.md - HTTP API and setup/UI servers.
  • telegram/AGENTS.md - Telegram/WhatsApp channels and sentinel.
  • shell/AGENTS.md - executor shells (Codex, Copilot, Claude, OpenCode).
  • github/AGENTS.md - GitHub App/OAuth auth and webhook paths.
  • ui/AGENTS.md - Mini App frontend assets.
  • site/AGENTS.md - marketing/docs website assets.
  • desktop/AGENTS.md - Electron desktop shell.
  • tests/AGENTS.md - test routing and coverage map.
  • config/AGENTS.md - config schema, resolution, repo-root handling.
  • tools/AGENTS.md - build/test utility scripts and maintenance helpers.
  • scripts/AGENTS.md - migration and one-off utility scripts.
  • lib/AGENTS.md - shared lightweight helpers.
  • git/AGENTS.md - git safety, commit helpers, conflict utilities.
  • voice/AGENTS.md - voice relay/auth/tooling modules.
  • _docs/AGENTS.md - long-form source docs for generated docs site.
  • bench/AGENTS.md - SWE-bench benchmarking tooling.
  • bin/AGENTS.md - executable wrappers (git shim).

Common Commands

  • Install: npm install
  • Test: npm test
  • Build: npm run build
  • Syntax check: npm run syntax:check

Read the full file on GitHub · 90 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. 1mo ago First seen · 90 lines · 857 tokens per session scan A d04dcfe01a6c

Subscribe to this mod's changes

bosun AGENTS.md is an instructions file published in the GitHub repository virtengine/bosun (284 stars, last pushed yesterday), licensed Apache-2.0. It adds 857 tokens to every session, about $0.0034 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.

Building agentsClaude Codeagentsautomationchatgptclaudecodex
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