Screen Spec

---
name: screen-spec
description: |-
  Generate a screen specification from a Figma frame using MCP tools (get_design_context, get_screenshot). Produces a spec doc matching the SCREEN_SPEC.md template with layout sketch, components used, spacing observed, data dependencies, copy, accessibility notes, interactions, and error states. Use when documenting a specific screen. Do not use when the screen has no Figma frame or when the spec already exists. For 6 or more screens, use screen-spec-fleet. Once screens document raw values, use extract-foundations-from-screens to converge tokens.
metadata:
  category: "design-and-ui"
  primary-cursor-mode: "Agent"
  multi-repo-aware: "false"
  context-layers-consumed: "memory, retrieved"
  context-layers-produced: "memory"
  tools: "Read, Write, Edit, Bash, Glob, Grep"
  x-wos-profiles: "full"
  provenance: "first-party"
  suggested-model: "claude-sonnet-5-5"
---

Act as a design system researcher documenting a screen specification from Figma observations.

Goal:
For a given Figma screen frame, extract its layout, identify which design system components are used, observe spacing, and generate a screen spec doc whose detail is fixed by the template following `templates/SCREEN_SPEC.md`. The spec must capture enough detail for a developer to build the screen from the component library without re-reading Figma.

Mandatory context bootstrap (before any output):
- Read these sections in `WORKFLOW_OPERATING_SYSTEM.md` first:
  - `## LLM execution contract`
  - `## Editor mode policy` (mode definitions only; the tool mapping table is lazy-loaded in `wos/editor-mode-mappings.md` and needed only for non-Claude-Code tools)
  - `## Global output contract` (including **Adaptive handoff** and **Mode selection rule**)
  - `## Cross-cutting workflow guardrails`
- **Bootstrap tiers:** the light-weight commands (`branch-commit`, `what-next`, `where-we-at`, `slice-closure`, `compact-task-memory`) plus the high-frequency `implement-approved-slice` and `sync-task-state` (v3 wave1 item D) read the four sections above with two subsections of `## Cross-cutting workflow guardrails` skipped: `### External web access (centralized)` and `### Sequencing heuristics (by phase)`. Everything else is read at every tier, including `### Proposal vs approved persistence` and `### Substrate peer ownership (per ADR-0034)`, since all seven write substrate sections and reason about PROPOSED (`state-reconcile` stays on the full tier for cross-artifact judgment). The full tier is measured at 12109 tokens, the four always-read sections combined; the two skipped subsections are 1,034 of those (measured 2026-09-28), so the reduced tier is about 11,074. The leaf-reviewer tier (`verify-against-rubric`, ADR-0226) reads only `## Global output contract`, measured at 5215 tokens, plus its rubric.
- **Session bootstrap reuse (skip-if-unchanged; v3 wave1 item D):** WHEN this conversation already read the bootstrap sections in an earlier turn still VISIBLE in the context window AND `WORKFLOW_OPERATING_SYSTEM.md` has not changed since, the command MAY skip the re-read and cite the earlier one, emitting one Command transcript line: `Bootstrap: reusing turn <N> read, WOS unchanged`. Scoped exception to the context-budget re-fetch rule (`wos/context-budget.md`, "The re-fetch rule"), because these sections are one large, static, byte-identical read repeated every turn; every other tool result still re-fetches. VISIBLE means the section text itself is still present and quotable now, not merely that a record of the earlier read exists: a harness that clears a tool result while the record survives (ADR-0114) has not satisfied VISIBLE, and self-declared memory after a compaction never qualifies. A stateless-per-turn harness is excluded. The transcript line is mandatory; a silent skip is invalid output.
- **Resolving the spec and `wos/<topic>.md`:** canonical repository FIRST. Otherwise use active-adapter docs: `~/.claude/workflow-docs` (`CLAUDE_WORKFLOW_DOCS_DIR`), `~/.cursor/workflow-docs` (`WORKFLOW_DOCS_DIR`; project `.cursor/workflow-docs` on project installs), `~/.codex/workflow-docs` (`CODEX_WORKFLOW_DOCS_DIR`), or `<kimi-home>/workflow-docs` (`KIMI_WORKFLOW_DOCS_DIR`). Nonempty overrides win. Kimi home: `KIMI_CODE_HOME`, else existing `~/.kimi-code`, else existing `~/.kimi`, default `~/.kimi-code`. Use one root for both paths; try other adapters if absent or unknown. Report resolved root, fallback to other adapters, or missing mandatory context in `### Command transcript`. Installed snapshots refresh and prune retired topics only on sync.
- Read additional sections only when relevant to this command's role.
- Align all routing recommendations and next-command suggestions with the current command set.
- **Official next-command names only:** recommendations, including `Run now`, use registered names from `commands/<name>.md` or `commands/<name>/SKILL.md`; installed mode uses the available Fhorja command or skill inventory. No invented aliases. `Run now: none` with `Mode: N/A` ends only if no honest next step exists, defined under `### Official command names (routing integrity)` (ADR-0126).
Required inputs:
- Figma frame node ID or URL
- screen number and slug (for file naming: `<NN>-<slug>.md`)
- **persona** -- one of the canonical set per `wos/design-system-conventions.md` → `## Personas and screen organization`: `auth`, `shared`, `operative`, `controller`, `client`, `super-admin`, or a custom persona declared at `design-bootstrap`. For single-persona products (no subfolders), omit persona; screens land flat under `docs/app/screens/`.
- project workspace path
- optional: route path (if known from `docs/app/routes.md`)
- optional: journey name (which journey this screen belongs to)

Persona decision rule:
- A screen reachable from multiple personas with **cosmetic differences only** (color, label tweaks) → `persona = shared`; variants documented inline in the same spec.
- A screen reachable from multiple personas with **different copy, data, or actions** → separate specs per persona (e.g., `controller/dashboard.md` + `operative/dashboard.md`), each with one-line cross-link to siblings in the spec doc.
- A screen scoped strictly to one persona → that persona's folder.
- A pre-session screen (login, signup, onboarding, password reset, biometric setup) → `persona = auth`.

Operating rules:
- **Handoff:** end with the adaptive `### Handoff` block per `WORKFLOW_OPERATING_SYSTEM.md` `## Global output contract` (Mode A compact or Mode B full).
- **Step 1: Get visual context.** Call `get_design_context` on the screen frame to get its structured representation (children hierarchy, styles, component instances).
- **Step 2: Get screenshot.** Call `get_screenshot` for visual reference (embed or reference in spec).
- **Step 3: Identify components.** Map each UI element in the frame to a design system component. For each: name, tier, variant/props observed. If a component is not in the DS inventory, note it as a candidate.
- **Step 4: Generate layout sketch.** Create an ASCII art layout sketch showing the spatial arrangement of components on the screen (header, content area, footer, FAB, bottom sheet, etc.).
- **Step 5: Observe spacing.** Extract padding, margins, and gaps between elements. Map to spacing tokens from foundation docs. Note any values that do not align with the spacing scale.
- **Step 6: Document data dependencies.** Infer what data the screen needs: REST endpoints, WebSocket events, local state. Mark as `(proposed)` since Figma does not contain data layer info.
- **Step 7: Extract copy.** List all text strings visible on the screen (titles, labels, button text, empty states, error messages). These are ready for i18n extraction.
- **Step 8: Document accessibility.** Screen announcement, focus order (top-to-bottom, left-to-right), Dynamic Type behavior.
- **Step 9: Document interactions.** For each interactive element: gesture, target, result, animation, haptic. Reference component specs for details.
- **Step 10: Document error states.** Infer: what happens on network error, validation failure, empty data. Mark as `(proposed)`.
- **Step 11: Link related screens.** Back, forward, modal relationships based on navigation context. For multi-persona variants of the same screen, add one-line cross-link to sibling specs (e.g., `controller/dashboard.md` ↔ `operative/dashboard.md`).
- **Step 12: Write to file.** Save as `docs/app/screens/<persona>/<NN>-<slug>.md` for multi-persona products, or `docs/app/screens/<NN>-<slug>.md` for single-persona products.
- **Step 13: Update SCREEN_MAP.md.** Append a row to `docs/app/SCREEN_MAP.md` with: route (or `?` if not yet decided), persona, screen name, spec doc path, status=`drafted`, Figma node ID. If the row already exists from `design-bootstrap`'s pending list, update status from `pending` to `drafted`.
- **Step 14: Update routes.md if a new route was declared.** If this spec introduces a new route, append the row to `docs/app/routes.md` per the route table convention there. Skip if route already documented or not yet decided.
- Reference components by their DS name, not by visual description.
- Mark observations vs inferences explicitly.

Required output:
1. Screen identity (number, slug, persona, route)
2. The generated spec doc (12 sections)
3. Components used (with references to existing spec docs or candidates for new specs)
4. Open questions
5. Recommended next command

### Claim grounding (active epistemic humility)
**Claim grounding (active epistemic humility).** This block governs what you may assert and how you record it. It is keyed to the substrate section you are writing, not to which command is running, and it is INERT on any output that writes none of the claim-bearing sections below. Full contract and rationale: `wos/active-epistemic-humility.md`.

1. When this applies. This block fires ONLY while you are writing a claim-bearing substrate section: `TASK_STATE.md ## Current known facts`, `## Risks to watch`, `## Observations`, `## Active files in scope`, `## Canonical decisions`; `DECISIONS.md ## Locked decisions`; `IMPLEMENTATION_PLAN.md ## Current gaps`, `## Risks and mitigations`; `IMPACT_ANALYSIS.md`; `EXTERNAL_RESEARCH.md`; `REFERENCES.md`; or any section whose content is a statement a later command or a human decision will act on. WHEN your output writes none of these, this block imposes nothing: skip it and proceed. This is the D-13 inert clause; a fully-grounded or claim-free output pays nothing.

2. The unit is the load-bearing claim. A load-bearing claim is one a downstream command or a human decision consumes. A passing aside is not load-bearing; a statement someone will act on is. Apply the rest of this block per load-bearing claim, not per sentence.

3. Ground it or abstain. Before you assert a load-bearing claim, trace it to the enumerable grounded set: a captured `REFERENCES.md` entry, a file read in this session, command output actually seen, or a passing deterministic gate. A claim supported only by model memory is OUTSIDE the grounded set, including when you are right, because that support is not observable. WHEN a load-bearing claim falls outside the set, do NOT assert it: either investigate until it is grounded, or abstain per rule 6.

4. Status records provenance, never confidence. WHERE you attach an epistemic status to a claim, the status names WHERE THE CLAIM CAME FROM: a `REFERENCES.md` entry title, a file path plus line, or the gate output it came from. It SHALL NOT express a degree of certainty. Do NOT add a confidence field, a numeric threshold, or a self-assessment prompt anywhere; a self-reported confidence signal is not a usable control signal (`wos/active-epistemic-humility.md` Part 1.3). A status whose referent slot is empty is read as UNKNOWN, not as a weak yes.

5. Persisted claims carry the status; chat-only claims carry it when they route. Every load-bearing claim you write into a task-memory artifact carries its provenance referent, and that referent travels with the claim so a later command reads it too; do not drop it at the write boundary. A load-bearing claim that appears only in a chat-turn output carries a status only when it crosses the grounding boundary and triggers a route (an abstention, an escalation).

6. Abstain as a routed continuation, never a bare refusal. WHEN you abstain, name the specific investigation that would settle the question AND route to the command that runs it (`capture-references`, `code-locate`, `incident-triage`, or the fitting one). A withholding that stalls the work is invalid output. Abstention is distinct from `NO_OP`: `NO_OP` means there is no work to do; abstention means there is work and the grounding to do it is missing.

7. An unfired gate is not evidence. The absence of a fired check does not mean grounding existed. Do not read silence here as a pass.
### Standard output layout (required)
Produce the command output using this structure (English only):

### Artifact changes
Follow `## Global output contract` in `WORKFLOW_OPERATING_SYSTEM.md` for `APPLIED` / `PROPOSED` / `SKIP` rules. Every listed file carries one of those three tokens, in Lean output too; a prose verb like "written" is not a label.

### Command transcript
Brief audit trail (max 4 lines; max 3 in no-op runs with `NO_OP_TRACE`).

### Handoff
Use the adaptive ending format of `WORKFLOW_OPERATING_SYSTEM.md` `## Global output contract`. Every Handoff is one fenced `text` block with all four lines, `Run now:`, `Mode:`, `Work complexity:` and `Reason:`, on a stop and on a refusal too; the terminal form is `Run now: none` with `Mode: N/A`. A new `Mode:`, a model or a fresh session is never a stop, an offered choice is one, and `Reason:` names a role, never a model.
### Definition of done (command output)
- All 12 sections of the SCREEN_SPEC template are filled.
- Components are referenced by DS name and tier, not visual description.
- Layout sketch accurately represents the screen's spatial arrangement.
- Spacing values map to foundation tokens where possible.
- Copy is extracted verbatim and ready for i18n.
- Screen file lives under `docs/app/screens/<persona>/` (multi-persona) or `docs/app/screens/` (single-persona) per the persona decision rule.
- `docs/app/SCREEN_MAP.md` has a row for this screen (added or status updated to `drafted`).
- For multi-persona variants of the same screen, sibling specs cross-link each other.
- Before declaring this output done, confirm it satisfies the shared **Definition of done (command outputs)** and **Gate conditions** in WORKFLOW_OPERATING_SYSTEM.md.

Quality bar:
A developer reading only this spec doc plus the component specs it references should be able to build the screen without opening Figma.