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.
npx skills add Cratis/AI --skill cratis-screenplay-ui-compositiongit clone --depth 1 https://github.com/Cratis/AIWrote 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/skills/cratis/ai/cratis-screenplay-ui-composition)<a href="https://agentmods.dev/skills/cratis/ai/cratis-screenplay-ui-composition"><img src="https://agentmods.dev/badge/skills/cratis/ai/cratis-screenplay-ui-composition/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.
<a href="https://agentmods.dev/skills/cratis/ai/cratis-screenplay-ui-composition"><img src="https://agentmods.dev/badge/skills/cratis/ai/cratis-screenplay-ui-composition.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00178 | $0.04062 |
| Opus 5.5 | $0.00071 | $0.01625 |
| Sonnet 5.5 | $0.00036 | $0.00812 |
| Haiku 4.5 | $0.00018 | $0.00406 |
Grade A, and why
cratis-screenplay-ui-composition 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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 317 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI composition in Screenplay
Read preferred syntax when writing or reviewing .play.
Event Modeling's wireframe step is a first-class part of the language. The shell,
the reusable shapes inside it, the forms bound to commands, and the navigation
entries other modules contribute are all declared in the .play model.
⚠️ file <Identifier> is read as a property named file, not a directive —
the type-reference shape wins the tie. file Invoices/Register.cs is a directive;
file Attachment is a property. In a trigger body the directive always wins, so
a trigger value named file is written @file.
Locate the model
Look first for the project's existing .play files: their folder is the model.
For a new model, check Source/ or src/, else use Screenplay/ at the repository
root. Never put a model under .cratis/ or hand-copy it between repositories.
cratis ai install manages .cratis/ai/, never model files. Keep explanatory
Markdown in project documentation; .play is the single flow model.
Product sources
Tool versions: toolchain SKILL.md. UI statements come from Screenplay
screens.md, contributions.md, navigation.md, sample-data.md, forms.md, templates.md, ui-profile.md,
fixtures/screen-release-ui.play, layout-arrangement.md, interactions.md, theme.md,
internationalization.md and file-references.md under Documentation/screenplay/. Scene
runtime sources: scaffold Scene tag, Source/JavaScript/**. This guidance does not verify
UI rendering.
Every construct on this page is deferred from the executable model with
information PLAY0269: it never blocks binding, and it is not evidence that a
target renders it.
The screens-release surface adds component data-context bindings, exposed template
configuration, package/icon catalogs, manual form columns, hierarchical outlets,
routes, toolbars and dialog destinations, each with a separate support level
(authoring accepted, executable admitted, runtime implemented). Discover the
installed shape through MCP syntax-schema; details:
references/screen-composition-contract.md.
What ships with it
14 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- LICENSE 507 B
- references/application-shell.md 14 KB
- references/file-references.md 2.4 KB
- references/flow-review.md 2.2 KB
- references/guarded-interactions.md 3.3 KB
- references/interaction-example.md 2.0 KB
- references/layout-arrangement.md 1.2 KB
- references/localized-strings.md 751 B
- references/provenance.md 1.3 KB
- references/response-continuations.md 4.1 KB
- references/screen-composition-contract.md 17 KB
- references/ui-profile-and-theme.md 8.1 KB
- references/worked-flow.md 3.1 KB
- verification.json 6.5 KB
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.
- 5d ago Changed · -12 lines · +40 tokens per session 0a51ab043faf
- 6d ago Changed · +2 lines de13ca990d5f
- 7d ago Changed · -98 lines ff4f7e9cceaa
- 9d ago Changed · -2 lines 2af3d82498ac
- 10d ago Changed 9e402ab41a6d
- 11d ago Changed · +1 lines 2a09df7697c5
- 12d ago Changed · +15 lines · +2 tokens per session 8b2caec50fa2
- 15d ago Changed · +52 lines 387a756755fa
- 17d ago Changed · +7 lines 1ab27496b753
- 26d ago First seen · 352 lines · 136 tokens per session scan A 928e4381af91
cratis-screenplay-ui-composition is a skill published in the GitHub repository Cratis/AI (4 stars, last pushed yesterday), licensed MIT. It adds 178 tokens to every session and 4,062 once invoked, about $0.0007 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 2026-09-19.
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