feat(story-62): add permission request prompts to web UI

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When Claude Code requires user approval before executing a tool (file
writes, commits, etc.) the agent sends a permission_request message
over the WebSocket.  The web UI now intercepts that message, surfaces a
modal dialog showing the tool name and input, and lets the user approve
or deny.  The decision is sent back as a permission_response, allowing
the agent to continue or adjust its approach.

Backend changes:
- claude_code.rs: parse "permission_request" NDJSON events from the PTY,
  block the PTY thread via a sync channel, and write the user's decision
  back to the PTY stdin as a JSON permission_response.
- chat.rs: thread an optional UnboundedSender<PermissionReqMsg> through
  to the provider.
- ws.rs: create a permission-request channel, forward requests to the
  client, collect responses via a pending-perms map, and interleave all
  of this with the active chat session using tokio::select!.

Frontend changes:
- client.ts: add permission_request to WsResponse, permission_response
  to WsRequest, onPermissionRequest handler to ChatWebSocket.connect(),
  and sendPermissionResponse() method.
- types.ts: mirror the same type additions.
- Chat.tsx: add permissionRequest state, wire onPermissionRequest
  callback, and render an approval modal with tool name, input context,
  Approve and Deny buttons.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

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Dave

2026-02-23 15:56:01 +00:00

parent 5e33a0c0b3

commit e0bc4bdc90

7 changed files with 341 additions and 43 deletions

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.story_kit/work/1_upcoming/62_story_allow_frontend_ui_to_accept_permissions_requests.md → .story_kit/work/2_current/62_story_allow_frontend_ui_to_accept_permissions_requests.md