onboard

A guided command-line tour of a codebase, starting with its index document and expanding to its listed areas, dependencies, milestone, and task board. A dependency graph shows which parts rely on other parts.

In plain words
What is it for?
Use it to learn the project's type, size, languages, main areas, dependencies, current work, and useful starting points.
Why use it?
It helps a new developer or a new work session understand the project structure before making changes.

Command

Part of the mpga plugin — 14 skills, 26 commands, 3 agents shipped together

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/benrben/mpga/onboard
Clone the repo
git clone --depth 1 https://github.com/benrben/MPGA

Or install mpga, the plugin that ships this one along with the rest of its 14 skills, 26 commands, 3 agents.

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 127 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 $0.00127
Opus 5 $0.00000 $0.00063
Sonnet 5 $0.00000 $0.00025
Haiku 4.5 $0.00000 $0.00013

Measured 2d ago against content hash d19b54df500d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

onboard 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 2d 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.

mpga-plugin/commands/onboard.md · 18 lines

What it actually says

/mpga:onboard

Guided codebase tour from INDEX.md outward for new developers or new sessions. Very, very special tour, believe me. Evidence First.

Steps

  1. Read MPGA/INDEX.md — present project identity
  2. Explain project type, size, and key languages
  3. Walk through the scope registry
  4. Highlight the dependency graph from GRAPH.md
  5. Show active milestone and current board state
  6. Suggest starting points and ask where the user wants to explore — Tremendous codebase, enjoy!

Usage

/mpga:onboard
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. 2d ago First seen · 18 lines · 0 tokens per session scan A d19b54df500d

Subscribe to this mod's changes

onboard is a command published in the GitHub repository benrben/MPGA (5 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 127 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 2026-08-31.