init_harness

init_harness is a command for coding agents from adrielp/ai-engineering-harness. It costs 0 tokens per session (332 once invoked), scanned A, original, Apache-2.0.

A command for setting up an AI engineering workspace in a repository. It creates project guidance, a structured thoughts directory, and a reusable ticket template.

In plain words
What is it for?
Use it to initialize repository instructions, create folders for tickets and project notes, and prepare the recommended next steps for development.
Why use it?
It gives future coding work a shared project map and consistent places to store research, decisions, and tasks.

Command

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/adrielp/ai-engineering-harness/init_harness
Clone the repo
git clone --depth 1 https://github.com/adrielp/ai-engineering-harness

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 init_harness

README.md
[![agentmods](https://agentmods.dev/badge/commands/adrielp/ai-engineering-harness/init_harness.svg)](https://agentmods.dev/commands/adrielp/ai-engineering-harness/init_harness)
Your own site
<a href="https://agentmods.dev/commands/adrielp/ai-engineering-harness/init_harness"><img src="https://agentmods.dev/badge/commands/adrielp/ai-engineering-harness/init_harness.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 332 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00332
Opus 5 $0.00000 $0.00166
Sonnet 5 $0.00000 $0.00066
Haiku 4.5 $0.00000 $0.00033

Measured 4d ago against content hash 5f736acfc549, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

init_harness 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 4d 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.

opencode/commands/init_harness.md · 45 lines

What it actually says

Initialize Harness

Initialize the AI Engineering Harness in this repository.

What This Command Does

  1. Runs the built-in /init command to generate AGENTS.md
  2. Creates the thoughts/ directory structure for context engineering
  3. Adds a ticket template for consistent ticket creation
  4. Provides guidance on next steps

Instructions

Load and follow the init-harness skill for detailed instructions on how to:

  1. Check the current state of the repository
  2. Run /init to generate AGENTS.md (the built-in codebase analysis command)
  3. Create the thoughts/ directory structure
  4. Add the ticket template
  5. Optionally create a personal thoughts directory
  6. Present next steps to the user

Important: The /init command is OpenCode's built-in command that analyzes the codebase and generates AGENTS.md. This /init_harness command wraps that functionality and adds the context engineering setup.

Quick Reference

After running this command, the repository will have:

AGENTS.md                           # Codebase context (from /init)
thoughts/
├── shared/
│   ├── tickets/                    # Feature requests, bugs, tasks
│   │   └── ticket-template.md      # Template for new tickets
│   ├── plans/                      # Implementation plans
│   └── research/                   # Research documents
└── global/                         # Cross-repository concerns

Workflow After Initialization

Ticket → /create_plan → /implement_plan → /validate_plan → /commit
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. 4d ago First seen · 45 lines · 0 tokens per session scan A 5f736acfc549

Subscribe to this mod's changes

init_harness is a command published in the GitHub repository adrielp/ai-engineering-harness (20 stars, last pushed 2mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 332 tokens. 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.