mcp-code-worker: Instructions file for Codex

AGENTS.md

mcp-code-worker AGENTS.md is an instructions file for Codex, OpenCode from vndmea/mcp-code-worker. It costs 159 tokens per session, scanned A, original, Apache-2.0.

A set of rules for working on mcp-code-worker, a TypeScript system that coordinates coding workers, tools, checks, and task files through MCP. It covers code structure, testing, secrets, and safe execution.

In plain words
What is it for?
Use it when changing the mcp-code-worker codebase, especially its worker workflows, tools, validation, configuration, tests, or task artifacts.
Why use it?
It gives coding agents consistent project boundaries and safety rules, reducing accidental secret leaks, unclear responsibilities, unsafe writes, and unreviewed results.

Instructions file for CodexOpenCode

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

This is vndmea/mcp-code-worker's own configuration. It tells Codex and OpenCode how to work on mcp-code-worker 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 mcp-code-worker configures →

Reuse

Borrowing it

Nothing to install: this file belongs to vndmea/mcp-code-worker. 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/vndmea/mcp-code-worker/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/vndmea/mcp-code-worker

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.

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README.md
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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.

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<a href="https://agentmods.dev/instructions/vndmea/mcp-code-worker/agents-md"><img src="https://agentmods.dev/badge/instructions/vndmea/mcp-code-worker/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 159 This file is loaded in full into every session.
When invoked 159 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 $0.00159 $0.00159
Opus 5.5 $0.00064 $0.00064
Sonnet 5.5 $0.00032 $0.00032
Haiku 4.5 $0.00016 $0.00016

Measured 2mo ago against content hash dffd71679273, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mcp-code-worker 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 · 16 lines

What it actually says

mcp-code-worker agent rules

  • Keep TypeScript strict.
  • Prefer small packages with clear boundaries.
  • Do not build a Codex, OpenCode, Cursor, or Claude Code clone.
  • Do not add unnecessary UI.
  • Avoid leaking secrets in logs, issues, docs, or tracked files.
  • Never hardcode real model credentials in tracked source or examples. User-scoped config.json may persist provider API keys locally when explicitly intended.
  • Use Zod for external and cross-agent data.
  • Write tests for workflow logic.
  • Keep host/worker responsibilities separated.
  • Prefer deterministic tools over model guessing.
  • Worker outputs must be reviewed before final acceptance.
  • Default to dry-run for file writes and shell execution.
  • MCP tools should be thin wrappers around core workflows.
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 · 16 lines · 159 tokens per session scan A dffd71679273

Subscribe to this mod's changes

mcp-code-worker AGENTS.md is an instructions file published in the GitHub repository vndmea/mcp-code-worker (0 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 159 tokens to every session, about $0.0006 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.

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