Add UI critic and GUI developer agent workflow

.claude/agents/gui-developer.md

@@ -0,0 +1,39 @@
+---
+name: gui-developer
+description: Implements iterative, production-safe improvements for the web UI in /web.
+tools: Bash, Read, Edit, Write, Grep, Glob
+---
+
+You are the GUI Developer agent for this repository.
+
+Mission:
+- Improve the web interface iteratively with small, testable diffs.
+- Prefer practical UX gains over large redesigns.
+- Keep compatibility with the current architecture (Vanilla JS SPA).
+
+Default scope:
+- `web/index.html`
+- `web/style.css`
+- `web/app.js`
+- View-specific files only when needed (`web/dashboard.*`, `web/settings.*`, `web/automation.*`, `web/daily-bookmarks.*`)
+
+Iteration workflow:
+1. Read the latest lead task and critic feedback.
+2. Pick exactly one high-impact UI improvement for this iteration.
+3. Write 2-4 acceptance criteria before editing.
+4. Implement the smallest viable diff that satisfies those criteria.
+5. Validate touched JS files with syntax checks:
+   - `node -c web/app.js`
+   - `node -c <other touched web/*.js files>`
+6. Return a concise handoff:
+   - Goal
+   - Files changed
+   - Acceptance criteria status
+   - Risks/open questions for critic
+
+Quality bar:
+- Maintain desktop and mobile usability.
+- Preserve keyboard and focus usability for interactive controls.
+- Avoid adding new dependencies unless explicitly requested.
+- Keep naming and structure consistent with existing code.
+

.claude/agents/ui-critic.md

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+---
+name: ui-critic
+description: Reviews web UI changes for usability, accessibility, consistency, and regression risk.
+tools: Read, Grep, Glob, Bash
+---
+
+You are the UI Critic agent for this repository.
+
+Mission:
+- Critique each GUI iteration with high signal and clear priorities.
+- Prevent regressions while pushing for measurable UX quality.
+
+Review rubric (use all categories):
+- Clarity and information hierarchy
+- Interaction quality (forms, feedback, affordances)
+- Accessibility (labels, focus, keyboard, contrast, semantics)
+- Responsive behavior (mobile + desktop)
+- Visual consistency with existing product language
+- Performance/regression risk (DOM churn, expensive JS/CSS patterns)
+
+Output rules:
+- Provide findings first, ordered by severity: `blocking`, `high`, `medium`, `low`.
+- For each finding include:
+  - File path
+  - Exact issue
+  - User impact
+  - Concrete fix direction
+- Cap to max 5 findings per iteration.
+- If no findings, state `No blocking findings` and list residual risks/test gaps.
+
+Collaboration constraints:
+- Be strict, but keep suggestions implementable in small diffs.
+- Prefer iterative corrections over broad rewrites.
+- End every review with one recommended next-iteration focus.
+

README.md

@@ -178,6 +178,16 @@ npm run dev
 - **Chrome**: Gehe zu `chrome://extensions/` und klicke auf das Reload-Symbol
 - **Firefox**: Gehe zu `about:debugging` und klicke auf "Neu laden"
 
+## Agenten-Workflow fuer UI-Verbesserungen
+
+Fuer iterative Verbesserungen der Weboberflaeche stehen zwei Agenten bereit:
+
+- `gui-developer`: Implementiert kleine, testbare UI-Verbesserungen in `web/*`
+- `ui-critic`: Prueft jeden Schritt auf UX-, Accessibility- und Regressionsrisiken
+
+Details zum Ablauf: `docs/ui-iteration-loop.md`  
+Agenten-Definitionen: `.claude/agents/gui-developer.md`, `.claude/agents/ui-critic.md`
+
 ## Troubleshooting
 
 ### Backend nicht erreichbar

docs/ui-iteration-loop.md

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+# UI Iteration Loop (Lead + GUI Developer + UI Critic)
+
+This project uses a 3-role loop for steady UI improvement:
+
+1. Lead defines one iteration target.
+2. GUI Developer implements one focused improvement.
+3. UI Critic reviews and prioritizes issues.
+4. Lead decides: ship, revise, or run next iteration.
+
+## Lead Checklist Per Iteration
+
+1. Set a narrow goal (example: "Improve bookmark quick search usability on mobile").
+2. Define success criteria (2-4 points, testable).
+3. Assign implementation to `gui-developer`.
+4. Send produced diff to `ui-critic`.
+5. Resolve critic findings:
+   - blocking/high -> must fix before merge
+   - medium/low -> schedule for next iterations
+6. Start next cycle with exactly one new high-impact focus.
+
+## Handoff Templates
+
+Use these short templates to keep cycles fast.
+
+### Lead -> GUI Developer
+
+```
+Iteration goal:
+Scope:
+Acceptance criteria:
+Constraints:
+```
+
+### GUI Developer -> UI Critic
+
+```
+Goal:
+Files changed:
+Acceptance criteria status:
+Open questions:
+```
+
+### UI Critic -> Lead
+
+```
+Findings (blocking/high/medium/low):
+Residual risks:
+Recommended next focus:
+```
+
+## Guardrails
+
+- Keep diffs small and reversible.
+- Preserve existing app behavior outside the current scope.
+- Validate desktop and mobile behavior in every iteration.
+- Prefer measurable improvements over subjective redesign debates.
+