Borrowing it
Nothing to install: this file belongs to danilods/matilha-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/danilods/matilha-skills/main/GEMINI.mdgit clone --depth 1 https://github.com/danilods/matilha-skillsWrote 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/instructions/danilods/matilha-skills/gemini-md)<a href="https://agentmods.dev/instructions/danilods/matilha-skills/gemini-md"><img src="https://agentmods.dev/badge/instructions/danilods/matilha-skills/gemini-md.svg" alt="Measured on agentmods" 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 | $0.00685 | $0.00685 |
| Opus 5 | $0.00342 | $0.00342 |
| Sonnet 5 | $0.00137 | $0.00137 |
| Haiku 4.5 | $0.00068 | $0.00068 |
Grade A, and why
matilha-skills GEMINI.md 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 8d 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.
This is a copy
86% identical to matilha-skills CLAUDE.md — 21 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Matilha — Cognitive + Methodological Harness
You lead. Agents hunt. A harness for building complex projects with AI.
Matilha preserves discipline across multi-week projects by activating phase-appropriate skills automatically. The human stays in the decision seat (intent, gates, judgment); the agents execute (parallel worktrees, per-SP focus, gated output).
How this loads in Gemini CLI
You are reading this because Matilha is installed as a Gemini CLI extension. Gemini CLI loads this file as context at session start. Skills live in skills/; when user intent matches a skill's description, invoke it explicitly via activate_skill or follow the instructions directly.
Phases (0-70)
Matilha organizes work across 8 phases. Each has a skill entry point.
| Phase | Purpose | Entry skill |
|---|---|---|
| 0 | Project state + next action | matilha-howl |
| 10 | Discovery / research | matilha-scout |
| 20-30 | Spec + plan authoring | matilha-plan |
| 40 | Dispatch + merge (waves, SPs) | matilha-hunt, matilha-gather |
| 50 | Quality review | matilha-review (Wave 3c planned) |
| 60 | Knowledge capture | matilha-den |
| 70 | Reusable artifacts | matilha-pack |
| init | Bootstrap new project | matilha-init |
| design | UX/UI guidance (cross-phase) | matilha-design |
See docs/matilha/naming-conventions.md for skill prefix rules and docs/matilha/companions-contract.md for how companion packs (UX, growth, design, security, harness) plug in.
Companion detection
If companion packs are installed (e.g., matilha-ux-pack, matilha-growth-pack), their skills auto-register via the Skill tool. Core Matilha skills delegate when a matching companion skill is available, with graceful fallback when absent. No package installation happens at runtime — packs are chosen by the user via their plugin marketplace.
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.
- 8d ago First seen · 51 lines · 685 tokens per session scan A 0c2959a97d6f
matilha-skills GEMINI.md is an instructions file published in the GitHub repository danilods/matilha-skills (2 stars, last pushed 4mo ago), licensed MIT. It adds 685 tokens to every session, about $0.0034 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to matilha-skills CLAUDE.md, differing in 21 lines, and is treated as a copy.
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