What is mcp-repo-onboarding GEMINI.md?

Repository instructions for the mcp-repo-onboarding project, an MCP server that helps create onboarding documentation for software repositories. They define its current work, stable names, required checks, and development process.

Use them when modifying, testing, or running mcp-repo-onboarding. They cover its Python and uv setup, validation script, onboarding files, and test-driven development (writing a failing test before the code).

They give coding agents a shared reference for changing the project without breaking its tool names, generated output, or verification rules.

How rogermt/mcp-repo-onboarding configures Gemini CLI

Reuse

Borrowing it

Nothing to install: this file belongs to rogermt/mcp-repo-onboarding. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/rogermt/mcp-repo-onboarding/master/GEMINI.md

Clone the repo

git clone --depth 1 https://github.com/rogermt/mcp-repo-onboarding

Made for: Gemini CLI.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/rogermt/mcp-repo-onboarding/gemini-md/github.svg)](https://agentmods.dev/instructions/rogermt/mcp-repo-onboarding/gemini-md)

Your own site

<a href="https://agentmods.dev/instructions/rogermt/mcp-repo-onboarding/gemini-md"><img src="https://agentmods.dev/badge/instructions/rogermt/mcp-repo-onboarding/gemini-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/rogermt/mcp-repo-onboarding/gemini-md"><img src="https://agentmods.dev/badge/instructions/rogermt/mcp-repo-onboarding/gemini-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 904 This file is loaded in full into every session.

When invoked 904 The same file — it is already loaded in full.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5.1	$0.00904	$0.00904
Opus 5	$0.00452	$0.00452
Sonnet 5	$0.00181	$0.00181
Haiku 4.5	$0.00090	$0.00090

Measured 10d ago against content hash 4c677389a271, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

mcp-repo-onboarding GEMINI.md 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 10d 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

- No code execution (no `subprocess.run` on user code).

GEMINI.md · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Current Status

Phase 7 (Domain Specialization): COMPLETE (Notebook detection, Prompt/Tool UX).
Phase 8 (Refinement): ACTIVE (Determinism, Maintainability, Scaffold).
Validation Authority: scripts/validate_onboarding.py is the source of truth.

Output Verification

...

Stable API / naming (must not drift)

Repo/package/binary: mcp-repo-onboarding Default onboarding file: ONBOARDING.md

MCP tool names are a stable API and must not change:

ping
analyze_repo
get_run_and_test_commands
read_onboarding
write_onboarding
get_onboarding_template (New: Returns authoritative prompt)

MCP prompts:

generate_onboarding (New: Slash command /generate_onboarding)

ALL code changes MUST follow Test-Driven Development:* 0. submit plan overwrite /home/rogermt/mcp-repo-onboarding/docs/development/plan.md

Write failing test FIRST in tests/.
Run test to confirm failure (uv run pytest).
Implement the fix in src/.
Run test to confirm pass (uv run pytest).

see /home/rogermt/mcp-repo-onboarding/docs/design/SOFTWARE_DESIGN_GUIDE.md

Key Phase 6 Artifacts (Reference)

Validator: scripts/validate_onboarding.py (Run this to verify ONBOARDING.md compliance).
Requirements: docs/development/REQUIREMENTS.md (Updated for Python-only scope & infrastructure).
Prompt Contract: docs/evaluation/B-prompt.txt (The prompt template that must be satisfied).
Ignore Logic: docs/design/ignore-handling.md (Docs for IgnoreMatcher).
Phase 7 Log: docs/development/DEV Phase 7.md (Current work log).

Build & Run (uv required)

This project uses uv for dependency management.

Sync Dependencies: uv sync
Run Tests: uv run pytest
Run Server: uv run mcp-repo-onboarding
Lint/Format: uv run ruff check .

Setup for Gemini-Cli

Create Directory

mkdir .gemini

Create JSON File

Create a file named settings.json inside the .gemini directory with the following content:

Read the full file on GitHub · 96 lines

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.

10d ago First seen · 96 lines · 904 tokens per session scan A 4c677389a271

Subscribe to this mod's changes

mcp-repo-onboarding GEMINI.md is an instructions file published in the GitHub repository rogermt/mcp-repo-onboarding (2 stars, last pushed 2mo ago), licensed MIT. It adds 904 tokens to every session, about $0.0045 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Claude Code gemini-cli mcp mcp-server qwen-cli

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