feat: add MCP server for semantic code search with FastMCP integration

.claude/skills/wf-composer/phases/04-confirm.md

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+# Phase 4: Confirm — Visualize + User Approval
+
+## Objective
+
+Render the pipeline as an ASCII diagram, present to user for confirmation and optional edits.
+
+## Workflow
+
+### Step 4.1 — Render Pipeline
+
+Load `design-session/dag.json`. Render in topological order:
+
+```
+Pipeline: <template-name>
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+ N-001  [skill]       workflow-lite-plan         "{goal}"
+   |
+ CP-01  [checkpoint]  After Plan                 auto-continue
+   |
+ N-002  [skill]       workflow-execute            --resume {N-001.session_id}
+   |
+ CP-02  [checkpoint]  Before Review              pause-for-user
+   |
+ N-003  [skill]       review-cycle               --session {N-002.session_id}
+   |
+ N-004  [skill]       workflow-test-fix           --session {N-002.session_id}
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+Variables (required):  goal
+Checkpoints:           2  (1 auto-continue, 1 pause-for-user)
+Nodes:                 4 work + 2 checkpoints
+```
+
+For parallel groups, show fan-out/fan-in:
+```
+ N-003a [skill]  review-cycle    ─┐
+                                   ├─ N-004 [skill] workflow-test-fix
+ N-003b [cli]    gemini analysis  ─┘
+```
+
+### Step 4.2 — Ask User
+
+```
+AskUserQuestion({
+  questions: [{
+    question: "Review the workflow pipeline above.",
+    header: "Confirm Pipeline",
+    options: [
+      { label: "Confirm & Save", description: "Save as reusable template" },
+      { label: "Edit a node", description: "Modify executor or args of a specific node" },
+      { label: "Add a node", description: "Insert a new step at a position" },
+      { label: "Remove a node", description: "Delete a step from the pipeline" },
+      { label: "Rename template", description: "Change the template name" },
+      { label: "Re-run checkpoint injection", description: "Reset and re-inject checkpoints" },
+      { label: "Cancel", description: "Discard and exit" }
+    ]
+  }]
+})
+```
+
+### Step 4.3 — Handle Edit Actions
+
+**Edit a node**:
+- AskUserQuestion: "Which node ID to edit?" → show fields → apply change
+- Re-render pipeline and re-ask
+
+**Add a node**:
+- AskUserQuestion: "Insert after which node ID?" + "Describe the new step"
+- Re-run Phase 2 (resolve) for the new step description
+- Insert new node + update edges
+- Re-run Phase 3 (enrich) for checkpoint injection
+- Re-render and re-ask
+
+**Remove a node**:
+- AskUserQuestion: "Which node ID to remove?"
+- If node is a checkpoint: also remove it, re-wire edges
+- If node is a work node: re-wire edges, re-run checkpoint injection
+- Re-render and re-ask
+
+**Rename template**:
+- AskUserQuestion: "New template name?"
+- Update slug for template_id
+
+### Step 4.4 — Finalize
+
+On "Confirm & Save":
+- Freeze dag.json (mark as confirmed)
+- Proceed to Phase 5
+
+On "Cancel":
+- Save draft to `design-session/dag-draft.json`
+- Output: "Draft saved. Resume with: Skill(skill='wf-composer', args='--resume <session-id>')"
+- Exit
+
+## Success Criteria
+
+- User selected "Confirm & Save"
+- dag.json frozen with all user edits applied