screens

screens is a skill for Claude Code, Codex from genkovich/sdd. It costs 199 tokens per session (2,162 once invoked), scanned C, original, MIT.

A screen-planning tool that lists every screen and state a user-interface feature needs, such as loading, empty, error, success, and validation states. A screen manifest is the shared checklist used by later design and implementation work.

In plain words
What is it for?
Use it to document screens, states, component choices, and justified new components for a feature with a human-facing interface.
Why use it?
It prevents important states from being forgotten and encourages reuse of existing interface components. It also turns the approved architecture into a concrete UI contract.

Skill for Claude CodeCodex

Part of the sdd plugin — 22 skills, 10 agents shipped together

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.

agentmods
npx agentmods add skills/genkovich/sdd/screens
Any agent
npx skills add genkovich/sdd --skill screens
Clone the repo
git clone --depth 1 https://github.com/genkovich/sdd

Made for: Claude Code, Codex.

Or install sdd, the plugin that ships this one along with the rest of its 22 skills, 10 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 screens

README.md
[![agentmods](https://agentmods.dev/badge/skills/genkovich/sdd/screens.svg)](https://agentmods.dev/skills/genkovich/sdd/screens)
Your own site
<a href="https://agentmods.dev/skills/genkovich/sdd/screens"><img src="https://agentmods.dev/badge/skills/genkovich/sdd/screens.svg" alt="Measured on agentmods" height="20"></a>
Per session 199 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,162 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
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 $0.00199 $0.02162
Opus 5 $0.00100 $0.01081
Sonnet 5 $0.00040 $0.00432
Haiku 4.5 $0.00020 $0.00216

Measured 6d ago against content hash 98dce47c11fb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade C, and why

screens scanned grade C 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 6d 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.

Tells the agent never to refusehighAnti-refusal

Suppressing the ability to decline removes a core safety control; a later harmful request then succeeds.

degradation, never refuse the stage over tooling.
skills/screens/SKILL.md · 126 lines

How it starts

The opening of the file, as written. The whole thing — 126 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: screens

Turns the approved architecture into the screen manifest — the one artifact tasks, implement and review read for what every screen shows in every state. It runs between api and tasks: by then the states are derivable, not invented — default plus every state the spec §5 ACs, the sad.md §6 alt/else branches, and the contract error responses imply (loading / empty / error / success / validation). Per state it names the components to reuse from the docs/design-system.md inventory — a NEW: component only with a why-no-primitive-fits justification. The visuals are drawn per the canon's tool; whatever the tool, the manifest is the contract — downstream never reads the raw Figma/.pen file.

Optional by surface: its N/A condition (no UI surface in sad.md target_surfaces) lives in ../_shared/size-matrix.md and is evaluated by api's handoff (carried forward when api itself is N/A). Invoked directly, it always runs.

Question phrasing → ../_shared/ask-style.md. Manifest prose follows artifact_language — state tokens (default/loading/…), SCR ids, component names and source-refs stay English → ../_shared/artifact-language.md.

Owner

Designer + frontend lead. The PM confirms the states match the ACs; review later checks the built screens against this manifest.

Inputs

  • <slug> — feature slug.
  • Gate (hard-refuse if missing): docs/features/<slug>/sad.mdtarget_surfaces + the §6 branches feed the state derivation. Absent → STOP: «run design <slug> first».
  • (Expected) docs/features/<slug>/ux-flows.md — the SCR inventory this manifest details. Absent → soft: offer /sdd:ux-flows <slug> first, or derive the inventory from spec §4 + the SAD with a noted gap in the manifest — never a silent invention.
  • (Expected) docs/design-system.md — the tool + the component inventory. Absent → code mode
    • recommend /sdd:design-system in the handoff.
  • (Read) docs/features/<slug>/contracts/ (error responses → error states), spec.md §5 (ACs → states), .size/.route (depth + handoff resolution; defaults stated loudly when missing).

Read the full file on GitHub · 126 lines

Files

What ships with it

1 file 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.

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. 6d ago First seen · 126 lines · 199 tokens per session scan C 98dce47c11fb

Subscribe to this mod's changes

screens is a skill published in the GitHub repository genkovich/sdd (119 stars, last pushed today), licensed MIT. It adds 199 tokens to every session and 2,162 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it C with 1 finding (tells the agent never to refuse). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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