Build task-management MCP tools and natural-language workflow

[michaelmwu]

Parent: #257

Goal

Build the first concrete task-management service workflow for natural-language commands.

Example commands

• "Create a task for Sarah to update onboarding docs by Friday and link it to project Atlas."
• "Move the onboarding docs task to next week."
• "Summarize open tasks for project Atlas."
• "Assign TASK-123 to Sarah and set the due date to May 15."

Scope

• Add task/project lookup tools.
• Add task create/update tools.
• Resolve people, projects, and dates from natural language.
• Show a human-readable plan before mutations.
• Freeze the confirmed plan so the model cannot reinterpret it after confirmation.

Suggested structured plan shape

{
  "intent": "create_task",
  "tool": "task_management.create_task",
  "arguments": {
    "assignee": "sarah",
    "title": "Update onboarding docs",
    "due_date": "2026-05-15",
    "project": "Atlas"
  },
  "risk": "low"
}

Acceptance criteria

• Simple task creation works from English.
• Ambiguous assignee/project/date values trigger clarification instead of guessing dangerously.
• Authorized low-risk task creation can execute.
• Medium-risk updates require confirmation.
• Resource checks prevent users from modifying inaccessible tasks/projects.

[michaelmwu]

PR #264 implements the inline MVP for English task workflows: task search/create/update parsing, confirmations for writes, frozen plans, and ownership/tenant checks. I am leaving this issue open because the backing task system is still an in-memory MVP store; the canonical durable source for code work vs. org tasks is still unresolved.