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mpga-onboard

mpga-onboard is a skill for Claude Code from benrben/MPGA. It costs 14 tokens per session (307 once invoked), scanned A, original, MIT.

A guided tour of a codebase that starts with INDEX.md and explains the project, its architecture, main files, dependencies, current milestone, and task board.

In plain words
What is it for?
Use it at the start of work on an unfamiliar repository to find key entry points, relevant project areas, and current work.
Why use it?
It helps someone new understand how the repository is organized before they begin changing code.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the mpga plugin — 18 skills, 26 commands, 3 agents shipped together

not rated 5repo 7mo ago A scan 14 tokens original MIT

Good fit Use it at the start of work on an unfamiliar repository to find key entry points, relevant project areas, and current work.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/benrben/mpga/onboard
View source ↗ benrben/MPGA
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.

Any agent
npx skills add benrben/MPGA --skill onboard
Clone the repo
git clone --depth 1 https://github.com/benrben/MPGA

Made for: Claude Code.

Or install mpga, the plugin that ships this one along with the rest of its 18 skills, 26 commands, 3 agents.

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 mpga-onboard

README.md
[![agentmods](https://agentmods.dev/badge/skills/benrben/mpga/onboard/github.svg)](https://agentmods.dev/skills/benrben/mpga/onboard)
Your own site
<a href="https://agentmods.dev/skills/benrben/mpga/onboard"><img src="https://agentmods.dev/badge/skills/benrben/mpga/onboard/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.

agentmods 80×15 button for mpga-onboard

Your own site · 80×15
<a href="https://agentmods.dev/skills/benrben/mpga/onboard"><img src="https://agentmods.dev/badge/skills/benrben/mpga/onboard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 307 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00014 $0.00307
Opus 5.5 $0.00006 $0.00123
Sonnet 5.5 $0.00003 $0.00061
Haiku 4.5 $0.00001 $0.00031

Measured 2mo ago against content hash 5085b3b130f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

mpga-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 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.

mpga-plugin/skills/onboard/SKILL.md · 43 lines

What it actually says

onboard

Trigger: User is new to the codebase or starting a fresh session.

Protocol

  1. Read MPGA/INDEX.md — present the project identity section.
  2. Explain the project type, size, and key languages — the big picture.
  3. Walk through the scope registry:
    • For each scope: what it does, key files, primary responsibilities.
  4. Highlight the dependency graph from GRAPH.md — how everything connects.
  5. Show active milestone and current board state — what we're building right now.
  6. Identify the most relevant scope(s) for the user's likely work.
  7. Suggest: "Which area would you like to explore first? We have well-documented code in every direction."

Presentation order

  1. Project identity
  2. Architecture overview
  3. Key entry points
  4. Active work
  5. Suggested starting points

Voice announcement

If spoke is available (mpga spoke --help exits 0), announce completion:

mpga spoke '<brief 1-sentence result summary>'

Keep the message under 280 characters.

Strict rules

  • Do NOT overwhelm with all information at once — present in sections.
  • Ask which area the user wants to dig into after the overview.
  • Cite evidence links for all claims about the codebase.
  • If scope docs are stale → mention it and suggest mpga sync.
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 · 43 lines · 14 tokens per session scan A 5085b3b130f8

Subscribe to this mod's changes

mpga-onboard is a skill published in the GitHub repository benrben/MPGA (5 stars, last pushed 7mo ago), licensed MIT. It adds 14 tokens to every session and 307 once invoked, about $0.0001 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.

Planning
Related

mpga-onboard compared with skills from other repositories

mpga-onboard next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
mpga-onboardbenrben/MPGASkill57mo agoMITA14Claude Code
imagegenopenai/codexSkill135ktodayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill100ktodayApache-2.0A19Claude Code
browser-automationopenclaw/openclawSkill394ktodayMITA36Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill316k8d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143ktodayMITA95Claude Code