maias: Skill for Claude Code

.claude/skills/maias-create/SKILL.md

maias-create is a skill for Claude Code from MAIAS-project/maias. It costs 57 tokens per session (1,154 once invoked), scanned A, original, Apache-2.0.

A MAIAS document is a structured description of an app’s screens, navigation, and user journeys. This skill creates one from a plain-language app idea and validates its format with the MAIAS toolchain.

In plain words
What is it for?
It helps define primary and secondary screens, flows, forms, settings, sign-in restrictions, and shareable links for a new app.
Why use it?
It turns an informal app concept into a checked design document that developers can use as a shared plan.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is MAIAS-project/maias's own configuration. It tells Claude Code how to work on maias itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything maias configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MAIAS-project/maias. 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/MAIAS-project/maias/main/.claude/skills/maias-create/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/MAIAS-project/maias

Made for: Claude Code.

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 maias-create

README.md
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Your own site
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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.

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Your own site · 80×15
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Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,154 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 $0.00057 $0.01154
Opus 5.5 $0.00023 $0.00462
Sonnet 5.5 $0.00011 $0.00231
Haiku 4.5 $0.00006 $0.00115

Measured 2mo ago against content hash 81ee1f6972b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

maias-create 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.

.claude/skills/maias-create/SKILL.md · 52 lines

How it starts

The opening of the file, as written. The whole thing — 52 lines — stays where its author put it; the contents beside it link to each section on GitHub.

maias-create

Turn an app description into a valid MAIAS document.

Ground rules

  1. Read docs/spec/llms.txt first — it is the authoritative condensed spec (document shape, element taxonomy, hard rules, canonical form). Do not author from memory.
  2. Never hand-verify — the toolchain is the referee: ./node_modules/.bin/maias validate <file> and maias fmt --write. (If the binary is missing: npm install && npm run build.)
  3. Study one example in examples/ that resembles the requested app (todo_list for CRUD, social_network for feeds/tabs, ecommerce for catalogues/journeys, calculator for single-screen).

Process

  1. Design before YAML. From the description, decide:

    • the 2–5 primary screens (tab bar) — what the user lives in;
    • the journeys (flows): each with an entry screen and an ordered screen list;
    • secondary screens: details (with :param paths), forms (usually presentation: modal), settings;
    • which screens are gated (auth: required) and which are shareable (deep_link: true + app.deep_links.scheme).

    End the design step by showing the user a structure preview in chat — tab bar, flows, and screens as an indented tree in the exact format maias tree prints (hand-drawn; no file exists yet). It is the contract you verify in step 5. Proceed after showing it unless the request was ambiguous — don't gate on confirmation. Format:

    Recipe Box — 9 screens, 3 flows
    Tab bar: Discover · My Recipes · Shopping
    
    Flow: discover — Browse and search recipes.
    ├─ discover        Discover       (list, tab)
    ├─ search          Search         (search)
    └─ recipe_detail   Recipe         (detail, deep_link)  back→discover
    
  2. Write the document at the user-requested path (default <app_name>.maias.yaml in the project root). Every screen and flow gets a real description — intent travels with structure. Give data-bearing screens states (empty/loading/error) and data.reads/writes using a consistent app-wide key vocabulary. Links follow elements first (spec §4.2): anything with an on-screen affordance is an element with target; navigation.secondary only for links not laid out.

  3. Validate and iterate: maias validate <file> until zero errors; then resolve warnings you introduced by accident (unreachable screens usually mean a missing link, not a missing warning-suppression). Deliberate warnings are fine — say so.

  4. Canonicalise and re-verify: maias fmt <file> --write, then maias fmt <file> --check and a final maias validate (fmt rewrites content — reorders lists, refolds scalars — so verify after it, not before).

  5. Summarise with the deterministic tree: run maias tree <file> and show its output — this is the toolchain's version of your step-1 preview; if they differ structurally, reconcile before finishing (the document is the truth, but an unintended difference means you drifted from the agreed design). Offer maias diagram <file> for a Mermaid flowchart of the screen graph — it renders in GitHub, Claude, and Obsidian with no install (--flow <name> scopes large apps).

  6. Offer to open it in the MAIAS Browser (npm run web --workspace maias-browser, then pick the file from the menu).

Read the full file on GitHub · 52 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.

  1. 2mo ago First seen · 52 lines · 57 tokens per session scan A 81ee1f6972b9

Subscribe to this mod's changes

maias-create is a skill published in the GitHub repository MAIAS-project/maias (1 stars, last pushed 18d ago), licensed Apache-2.0. It adds 57 tokens to every session and 1,154 once invoked, about $0.0002 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.

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