refactor: replace Task tool with Agent tool and fix schema compliance

## Task -> Agent Replacement
- Replace all Task({}) calls with Agent({}) across .claude/ directory
- Update allowed-tools declarations from Task to Agent
- Update documentation references from "Task tool" to "Agent tool"

## Schema Compliance Fixes

### Agent Schema
- Add missing required `description` parameter in 6 files
- Add missing `run_in_background: false` for subagent calls
- Add missing `subagent_type` parameter

### AskUserQuestion Schema
- Fix issue-manage/SKILL.md: reduce options from 5 to 4 (max allowed)

### SendMessage Schema
- Fix team-worker.md: use correct params (type, content, summary)
- Remove invalid `team_name` parameter

### TaskCreate/TaskUpdate Schema
- Remove invalid `blockedBy`, `owner`, `status` from TaskCreate calls
- Use separate TaskUpdate calls for dependencies and ownership
- Fix TaskUpdate syntax to use object parameter

### TeamDelete Schema
- Remove parameters from TeamDelete() calls (should be no params)

### TaskOutput Schema
- Fix Python-style syntax to JavaScript object syntax

## Files Changed
- 146 files updated across commands/, skills/, skills_lib/, agents/

.claude/skills/team-uidesign/SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: team-uidesign
 description: Unified team skill for UI design team. All roles invoke this skill with --role arg for role-specific execution. CP-9 Dual-Track design+implementation.
-allowed-tools: TeamCreate(*), TeamDelete(*), SendMessage(*), TaskCreate(*), TaskUpdate(*), TaskList(*), TaskGet(*), Task(*), AskUserQuestion(*), TodoWrite(*), Read(*), Write(*), Edit(*), Bash(*), Glob(*), Grep(*), WebFetch(*), WebSearch(*)
+allowed-tools: TeamCreate(*), TeamDelete(*), SendMessage(*), TaskCreate(*), TaskUpdate(*), TaskList(*), TaskGet(*), Agent(*), AskUserQuestion(*), TodoWrite(*), Read(*), Write(*), Edit(*), Bash(*), Glob(*), Grep(*), WebFetch(*), WebSearch(*)
 ---
 
 # Team UI Design
@@ -352,7 +352,7 @@ Beat 1         2              3           4                      5         6
 When coordinator spawns workers, use `team-worker` agent with role-spec path:
 
 ```
-Task({
+Agent({
   subagent_type: "team-worker",
   description: "Spawn <role> worker",
   team_name: "uidesign",
@@ -397,7 +397,7 @@ AskUserQuestion({
 
 | Choice | Action |
 |--------|--------|
-| Archive & Clean | Update session status="completed" -> TeamDelete(uidesign) -> output final summary |
+| Archive & Clean | Update session status="completed" -> TeamDelete() -> output final summary |
 | Keep Active | Update session status="paused" -> output resume instructions: `Skill(skill="team-uidesign", args="resume")` |
 | Export Results | AskUserQuestion for target path -> copy deliverables -> Archive & Clean |
 

.claude/skills/team-uidesign/roles/coordinator/commands/dispatch.md

@@ -24,7 +24,6 @@ Every task description uses structured format:
 ```
 TaskCreate({
   subject: "<TASK-ID>",
-  owner: "<role>",
   description: "PURPOSE: <what this task achieves> | Success: <measurable completion criteria>
 TASK:
   - <step 1: specific action>
@@ -37,10 +36,9 @@ CONTEXT:
   - Upstream artifacts: <artifact-1>, <artifact-2>
   - Shared memory: <session>/wisdom/.msg/meta.json
 EXPECTED: <deliverable path> + <quality criteria>
-CONSTRAINTS: <scope limits, focus areas>",
-  blockedBy: [<dependency-list>],
-  status: "pending"
+CONSTRAINTS: <scope limits, focus areas>"
 })
+TaskUpdate({ taskId: "<TASK-ID>", addBlockedBy: [<dependency-list>], owner: "<role>" })
 ```
 
 ### Mode Router
@@ -71,9 +69,9 @@ CONTEXT:
   - Industry: <industry>
   - Shared memory: <session>/wisdom/.msg/meta.json
 EXPECTED: <session>/research/*.json | All 4 research files with valid JSON
-CONSTRAINTS: Read-only analysis | Focus on <design-scope>",
-  status: "pending"
+CONSTRAINTS: Read-only analysis | Focus on <design-scope>"
 })
+TaskUpdate({ taskId: "RESEARCH-001", owner: "researcher" })
 ```
 
 **DESIGN-001** (designer):
@@ -93,10 +91,9 @@ CONTEXT:
   - Upstream artifacts: research/*.json
   - Shared memory: <session>/wisdom/.msg/meta.json
 EXPECTED: <session>/design/design-tokens.json + component-specs/*.md | Complete token system + spec
-CONSTRAINTS: Follow W3C Design Tokens Format | All color tokens need light/dark",
-  blockedBy: ["RESEARCH-001"],
-  status: "pending"
+CONSTRAINTS: Follow W3C Design Tokens Format | All color tokens need light/dark"
 })
+TaskUpdate({ taskId: "DESIGN-001", addBlockedBy: ["RESEARCH-001"], owner: "designer" })
 ```
 
 **AUDIT-001** (reviewer):
@@ -116,10 +113,9 @@ CONTEXT:
   - Upstream artifacts: design/design-tokens.json, design/component-specs/*.md
   - Shared memory: <session>/wisdom/.msg/meta.json
 EXPECTED: <session>/audit/audit-001.md | 5-dimension scored report
-CONSTRAINTS: Read-only analysis | GC convergence: score >= 8 and 0 critical",
-  blockedBy: ["DESIGN-001"],
-  status: "pending"
+CONSTRAINTS: Read-only analysis | GC convergence: score >= 8 and 0 critical"
 })
+TaskUpdate({ taskId: "AUDIT-001", addBlockedBy: ["DESIGN-001"], owner: "reviewer" })
 ```
 
 **BUILD-001** (implementer):
@@ -139,10 +135,9 @@ CONTEXT:
   - Upstream artifacts: design/design-tokens.json, design/component-specs/*.md, audit/audit-001.md
   - Shared memory: <session>/wisdom/.msg/meta.json
 EXPECTED: <session>/build/**/* | Component + tokens CSS/TS + tests
-CONSTRAINTS: Use var(--token-name) only | Follow project patterns",
-  blockedBy: ["AUDIT-001"],
-  status: "pending"
+CONSTRAINTS: Use var(--token-name) only | Follow project patterns"
 })
+TaskUpdate({ taskId: "BUILD-001", addBlockedBy: ["AUDIT-001"], owner: "implementer" })
 ```
 
 ---

.claude/skills/team-uidesign/roles/coordinator/commands/monitor.md

@@ -68,7 +68,7 @@ Find and spawn the next ready tasks.
 2. For each ready task, spawn team-worker:
 
 ```
-Task({
+Agent({
   subagent_type: "team-worker",
   description: "Spawn <role> worker for <task-id>",
   team_name: "uidesign",
@@ -126,10 +126,9 @@ CONTEXT:
   - Upstream artifacts: audit/audit-<NNN>.md
   - Shared memory: <session>/wisdom/.msg/meta.json
 EXPECTED: Updated design artifacts | All flagged issues addressed
-CONSTRAINTS: Targeted fixes only",
-  blockedBy: [],
-  status: "pending"
+CONSTRAINTS: Targeted fixes only"
 })
+TaskUpdate({ taskId: "DESIGN-fix-<round>", owner: "designer" })
 ```
 
 After fix completes, create new AUDIT task blocked by the fix task. Increment gc_state.round.

.claude/skills/team-uidesign/roles/coordinator/role.md

@@ -213,7 +213,7 @@ Execute `commands/dispatch.md` inline (Command Execution Protocol):
 Find first unblocked task and spawn its worker:
 
 ```
-Task({
+Agent({
   subagent_type: "team-worker",
   description: "Spawn researcher worker",
   team_name: "uidesign",
@@ -285,6 +285,6 @@ AskUserQuestion({
 
 | Choice | Steps |
 |--------|-------|
-| Archive & Clean | TaskList -> verify all completed -> update session status="completed" -> TeamDelete("uidesign") -> output final summary with artifact paths |
+| Archive & Clean | TaskList -> verify all completed -> update session status="completed" -> TeamDelete() -> output final summary with artifact paths |
 | Keep Active | Update session status="paused" -> output: "Session paused. Resume with: Skill(skill='team-uidesign', args='resume')" |
 | Export Results | AskUserQuestion for target directory -> copy all artifacts -> Archive & Clean flow |