---
phase: 18-initiative-detail
plan: 02
type: execute
wave: 1
depends_on: []
files_modified:
  - packages/web/src/components/PhaseAccordion.tsx
  - packages/web/src/components/TaskRow.tsx
  - packages/web/src/components/DependencyIndicator.tsx
autonomous: true
---

<objective>
Create PhaseAccordion, TaskRow, and DependencyIndicator components for the initiative detail hierarchy view.

Purpose: The core of the detail page — renders the phase → task tree with expand/collapse, status indicators, agent assignments, and dependency annotations. The UI flattens the Phase → Plan → Task hierarchy by hiding the Plan layer (per decision 15-02).
Output: Three interconnected components ready for page assembly in Plan 04.
</objective>

<execution_context>
@~/.claude/get-shit-done/workflows/execute-plan.md
@~/.claude/get-shit-done/templates/summary.md
</execution_context>

<context>
@.planning/PROJECT.md
@.planning/ROADMAP.md
@.planning/STATE.md

# Wireframe spec — the primary reference for this plan
@docs/wireframes/initiative-detail.md

# Prior phase components to follow patterns
@packages/web/src/components/StatusBadge.tsx
@packages/web/src/components/ProgressBar.tsx
@packages/web/src/components/InitiativeCard.tsx

# tRPC client and existing types
@packages/web/src/lib/trpc.ts
@packages/shared/src/types.ts

# tRPC router — need to understand listPlans, listTasks, getPhaseDependencies signatures
@src/trpc/router.ts
</context>

<tasks>

<task type="auto">
  <name>Task 1: Create DependencyIndicator component</name>
  <files>packages/web/src/components/DependencyIndicator.tsx</files>
  <action>
Create a component that renders dependency annotations for blocked tasks/phases.

Props interface:
- `blockedBy`: `Array<{ name: string; status: string }>` — the items blocking this one
- `type`: `'task' | 'phase'` — for display text

Layout (matching wireframe):
- Renders a line with `^` prefix and text: "blocked by: {name1}, {name2}"
- Text is muted/orange color (`text-orange-500` or `text-amber-600`)
- Indented to align with parent tree structure (use `pl-8` or similar)
- If `blockedBy` is empty, render nothing (return null)

This is a pure presentational component.
  </action>
  <verify>npx tsc --noEmit -p packages/web/tsconfig.app.json passes</verify>
  <done>DependencyIndicator renders blocked-by annotations with ^ prefix. Compiles cleanly.</done>
</task>

<task type="auto">
  <name>Task 2: Create TaskRow component</name>
  <files>packages/web/src/components/TaskRow.tsx</files>
  <action>
Create a component for a single task row in the phase tree.

Props interface:
- `task`: serialized Task object from tRPC (`{ id, name, status, type, priority, order }` — dates are strings)
- `agentName`: `string | null` — agent assigned to this task (if any)
- `blockedBy`: `Array<{ name: string; status: string }>` — blocking dependencies
- `isLast`: `boolean` — whether this is the last sibling (affects tree connector)
- `onClick`: `() => void` — opens task detail modal

Layout (matching wireframe):
- Row with tree connector: `|--` for siblings, `+--` for last item (use `├──` and `└──` Unicode)
- Task name as main text
- StatusBadge showing task status (reuse existing component)
- If `agentName` is set, show `[agentName]` inline in blue/muted text
- If `blockedBy` has items, render DependencyIndicator below the row (indented)
- Entire row is clickable (calls `onClick`)
- Use hover state: `hover:bg-accent` for clickability feedback

Tree connectors: Use a left-side border or pseudo-element pattern. Keep it simple — a `border-l-2` on a wrapper div with connector characters as inline text.

Do NOT add "Spawn Agent" button yet — that comes in Plan 04 with queue actions.
  </action>
  <verify>npx tsc --noEmit -p packages/web/tsconfig.app.json passes</verify>
  <done>TaskRow renders task with tree connectors, status badge, agent name, and dependency indicator. Compiles cleanly.</done>
</task>

<task type="auto">
  <name>Task 3: Create PhaseAccordion component</name>
  <files>packages/web/src/components/PhaseAccordion.tsx</files>
  <action>
Create an expandable/collapsible phase container that holds TaskRow components.

Props interface:
- `phase`: serialized Phase object (`{ id, number, name, status, description }`)
- `tasks`: `Array<{ task: SerializedTask; agentName: string | null; blockedBy: Array<{ name: string; status: string }> }>` — tasks with their metadata, already fetched and assembled by parent
- `defaultExpanded`: `boolean` — whether to start expanded
- `onTaskClick`: `(taskId: string) => void` — callback when a task row is clicked

Behavior (matching wireframe):
- Header row: `v`/`>` expand indicator (use `ChevronDown`/`ChevronRight` from lucide-react), phase number + name, task count `(completed/total)`, and StatusBadge for phase status
- Click header to toggle expand/collapse (internal state with `useState`, initialized from `defaultExpanded`)
- When expanded, render all tasks as TaskRow components
- Phase with status 'blocked' shows DependencyIndicator below header (needs additional prop `phaseDependencies`: `Array<{ name: string; status: string }>`)

Add `phaseDependencies` prop: `Array<{ name: string; status: string }>` — for phase-level blocked-by display.

Use Tailwind for styling. Border-bottom between phases for visual separation.
  </action>
  <verify>npx tsc --noEmit -p packages/web/tsconfig.app.json passes</verify>
  <done>PhaseAccordion renders expandable phase with task list, status, and dependency indicators. Compiles cleanly.</done>
</task>

</tasks>

<verification>
Before declaring plan complete:
- [ ] `npx tsc --noEmit -p packages/web/tsconfig.app.json` passes
- [ ] `npx vite build` in packages/web succeeds
- [ ] All three components export correctly
- [ ] Components follow existing codebase patterns (functional components, named exports, Tailwind)
</verification>

<success_criteria>

- PhaseAccordion renders expandable phases with task counts and status
- TaskRow renders tasks with tree connectors, status, agent names
- DependencyIndicator renders blocked-by annotations
- All components are presentational (data assembled by parent)
- TypeScript and Vite build pass
  </success_criteria>

<output>
After completion, create `.planning/phases/18-initiative-detail/18-02-SUMMARY.md`
</output>