start-dev

start-dev is a command for coding agents from niels-emmer/myace. It costs 11 tokens per session (205 once invoked), scanned A, original, MIT.

A command for starting the complete MyACE development environment with Docker Compose. It brings up the frontend, backend API, API documentation, database migrations, and frontend live reload.

In plain words
What is it for?
Use it to build and start MyACE locally, run database migrations, check the backend health endpoint, and launch the frontend development server.
Why use it?
It removes the need to remember the setup order and health checks for local development. It also verifies that the backend is responding after the containers start.

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/niels-emmer/myace/start-dev
Clone the repo
git clone --depth 1 https://github.com/niels-emmer/myace

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 start-dev

README.md
[![agentmods](https://agentmods.dev/badge/commands/niels-emmer/myace/start-dev.svg)](https://agentmods.dev/commands/niels-emmer/myace/start-dev)
Your own site
<a href="https://agentmods.dev/commands/niels-emmer/myace/start-dev"><img src="https://agentmods.dev/badge/commands/niels-emmer/myace/start-dev.svg" alt="Measured on agentmods" height="20"></a>
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 205 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00011 $0.00205
Opus 5 $0.00005 $0.00102
Sonnet 5 $0.00002 $0.00041
Haiku 4.5 $0.00001 $0.00020

Measured 3d ago against content hash 60bedcba5413, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

start-dev scanned grade A with 1 finding 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 3d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

4. Verify the backend is healthy: `curl http://localhost:8000/health`
.opencode/commands/start-dev.md · 20 lines

What it actually says

Start the MyACE development environment.

Steps:

  1. Ensure .env exists (copy from .env.example if not): cp .env.example .env
  2. Build and start the dev stack: docker compose -f docker-compose.yml -f docker-compose.dev.yml up -d --build
  3. Run database migrations: docker compose exec backend alembic upgrade head
  4. Verify the backend is healthy: curl http://localhost:8000/health
  5. Start the frontend dev server (separate terminal, for HMR): cd frontend && npm run dev

The dev stack gives you:

  • Frontend on http://localhost:80
  • Backend API on http://localhost:8000
  • Backend docs at http://localhost:8000/docs
  • Frontend HMR on http://localhost:5173 (via npm run dev)
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. 3d ago First seen · 20 lines · 11 tokens per session scan A 60bedcba5413

Subscribe to this mod's changes

start-dev is a command published in the GitHub repository niels-emmer/myace (1 stars, last pushed 2d ago), licensed MIT. It adds 11 tokens to every session and 205 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.