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.
npx skills add gabrielmoreira/agent-skills-mirror --skill dev-local-setupgit clone --depth 1 https://github.com/gabrielmoreira/agent-skills-mirrorWrote 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.
[](https://agentmods.dev/skills/gabrielmoreira/agent-skills-mirror/dev-local-setup)<a href="https://agentmods.dev/skills/gabrielmoreira/agent-skills-mirror/dev-local-setup"><img src="https://agentmods.dev/badge/skills/gabrielmoreira/agent-skills-mirror/dev-local-setup/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.
<a href="https://agentmods.dev/skills/gabrielmoreira/agent-skills-mirror/dev-local-setup"><img src="https://agentmods.dev/badge/skills/gabrielmoreira/agent-skills-mirror/dev-local-setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00110 | $0.01313 |
| Opus 5 | $0.00055 | $0.00656 |
| Sonnet 5 | $0.00022 | $0.00263 |
| Haiku 4.5 | $0.00011 | $0.00131 |
Grade A, and why
dev-local-setup 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Set up a dev-local launcher for this codebase
Goal: produce one script (scripts/dev-local.sh) that a person or agent runs
to bring the whole local stack up — every long-lived dev server in its own tmux
window, plus any infra (DB, cache, queues) the app needs — and a short skill doc
so it's discoverable later.
Do NOT start any dev servers yourself. You are generating the launcher, not running it. Build it, syntax-check it, then hand it to the user to run.
This is the local, single-stack launcher. For concurrent agents that each need their own isolated stack (one laptop can't run N), see
crabbox-setup— the cloud counterpart. It reuses this script's service/port discovery, so set this up first.
Step 1 — Investigate the repo (don't guess)
Discover the real facts before writing anything:
- Package manager & layout — look for
pnpm-workspace.yaml/turbo.json/nx.json/lerna.json(monorepo) or a singlepackage.json,Cargo.toml,go.mod,pyproject.toml,Makefile,Procfile,docker-compose.yml. - Services to run — each app/package with a
dev/start/servescript, or eachProcfileline, or eachdocker-composeservice. Note the exact command to start each (e.g.pnpm --filter <name> run dev,npm run dev,cargo run,uvicorn app:app --reload). - Ports — grep configs and
.envfor the port each service binds (PORT,listen(,server.port, framework config likersbuild.config,vite.config,next.config). Record which talks to which. - Infra dependencies — does a backend need Postgres / Supabase / MySQL /
Redis / Mongo / Kafka? Check
.env(.local), ORM config,docker-compose, and connection-string defaults. Decide how to provide each locally (supabase start, a Docker container, an existingdocker-compose). - First-run setup — migrations, seed, codegen,
install. Note the commands but keep them OUT of the defaultuppath (offer a separate subcommand). - Env files — confirm a committed
.env.example/.env; never invent or print secrets. The script must not inject credentials.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 5d ago First seen · 99 lines · 110 tokens per session scan A 342043828eb1
dev-local-setup is a skill published in the GitHub repository gabrielmoreira/agent-skills-mirror (17 stars, last pushed yesterday), licensed MIT. It adds 110 tokens to every session and 1,313 once invoked, about $0.0006 per session on Opus 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 2026-09-03.
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