opencode-drewgent: Instructions file for Codex

AGENTS.md

opencode-drewgent AGENTS.md is an instructions file for Codex, OpenCode from humanerd-drew/opencode-drewgent. It costs 1,826 tokens per session, scanned A, original, MIT.

Repository instructions for opencode-drewgent, a template for building an AI-agent system. It covers agent roles, delegation, integrations, scheduled jobs, and a structured knowledge vault.

In plain words
What is it for?
Working on agent profiles, tool integrations, project folders, automation, task pipelines, and the P0–P6 vault structure.
Why use it?
They give an agent consistent rules for navigating and extending the template without breaking its organization or responsibilities.

Instructions file for CodexOpenCode

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

This is humanerd-drew/opencode-drewgent's own configuration. It tells Codex and OpenCode how to work on opencode-drewgent 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 opencode-drewgent configures →

Reuse

Borrowing it

Nothing to install: this file belongs to humanerd-drew/opencode-drewgent. 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/humanerd-drew/opencode-drewgent/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/humanerd-drew/opencode-drewgent

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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Per session 1,826 This file is loaded in full into every session.
When invoked 1,826 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 $0.01826 $0.01826
Opus 5.5 $0.00730 $0.00730
Sonnet 5.5 $0.00365 $0.00365
Haiku 4.5 $0.00183 $0.00183

Measured 2mo ago against content hash df9c6304cce4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

opencode-drewgent 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 · 197 lines

How it starts

The opening of the file, as written. The whole thing — 197 lines — stays where its author put it; the contents beside it link to each section on GitHub.

opencode-drewgent — Agent Template Guide

This is a template — a starting point for your own personal AI agent system. Fork it, rename it, and make it yours.

Architecture Overview

opencode-drewgent provides a structured agent system built on opencode. It includes:

  • Subagent profiles — specialized agent roles (engineer, reviewer, analyst, etc.) with assigned models and tool permissions
  • Delegation patterns — task() for same-model subtasks, gjc_delegate_* for isolated/parallel execution via GJC Coordinator MCP
  • Vault structure — P0-P6 Obsidian vault for rules, identity, memory, sensors, cortex, ego, and prefrontal
  • MCP integration — example config for local and remote MCP servers
  • Kanban pipeline — task decomposition with leverage scoring
  • Cron automation — example jobs for housekeeping, content, and monitoring

Structure Principles

.
├── agent/          ← Core .py package (NOT root-level .py files)
├── gateway/        ← Platform adapters
├── cron/           ← Scheduler
├── tools/          ← Tool implementations
├── skills/         ← Agent skills
├── projects/       ← External work (one subdir per project)
├── brain/          ← P0-P6 vault + @identity
├── state/          ← DBs, logs, sessions
├── config/         ← Settings, dotfiles
└── docs/           ← Documentation

Key rule: Root must stay lean. Agent code goes in agent/. External work goes in projects/. Flat root accumulation is tech debt — each file at root is a decision that needs a justification.

Subagent Profiles

See .opencode/agents/*.md for the full list. Key profiles:

Profile Model Role
implementer flash Code generation, file edits
reviewer pro Code review, quality gate
explorer flash Codebase discovery, research
planner max Task decomposition, planning
architect pro Architecture decisions
sre flash Infrastructure, monitoring

Read the full file on GitHub · 197 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 · 197 lines · 1,826 tokens per session scan A df9c6304cce4

Subscribe to this mod's changes

opencode-drewgent AGENTS.md is an instructions file published in the GitHub repository humanerd-drew/opencode-drewgent (3 stars, last pushed 3mo ago), licensed MIT. It adds 1,826 tokens to every session, about $0.0073 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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