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# Feature: Agent Context API
**Status:** [IN_PROGRESS] Phase 1 Complete
**Created:** 2026-01-27
**Author:** Architect
---
## Overview
Expose a JSON API that allows external chat agents (e.g., Claude Code) to query dashboard context and manipulate items. Authentication uses a notification-based approval flow with agent identity binding.
---
## User Stories
1. **As a user**, I can approve/deny agent access requests from the dashboard UI
2. **As a user**, I can see which agents have been granted access and revoke them
3. **As an agent**, I can request access by providing my name and unique ID
4. **As an agent**, once approved, I can query the 7-day context (tasks, meals, timeline)
5. **As an agent**, I can complete/uncomplete tasks, update due dates, modify details, and create items
---
## Authentication Flow
```
Agent Dashboard API Browser Tab
│ │ │
│ POST /agent/auth/request │ │
│ {name, agent_id} │ │
│ ──────────────────────────────>│ │
│ │ │
│ {request_token, status: │ WebSocket push: │
│ "pending"} │ "Agent X wants access" │
│ <──────────────────────────────│ ────────────────────────────>│
│ │ │
│ │ User approves
│ │ │
│ │ POST /agent/auth/approve │
│ │ <────────────────────────────│
│ │ │
│ GET /agent/auth/poll │ │
│ ?token=X │ │
│ ──────────────────────────────>│ │
│ │ │
│ {status: "approved", │ │
│ session_token, expiry} │ │
│ <──────────────────────────────│ │
│ │ │
│ GET /agent/context │ │
│ Authorization: Bearer X │ │
│ ──────────────────────────────>│ │
│ │ │
│ {timeline, tasks, ...} │ │
│ <──────────────────────────────│ │
```
---
## Agent Identity Binding
| Scenario | Behavior |
|----------|----------|
| New agent (name + ID never seen) | Show approval prompt, store pairing on approve |
| Known agent (name + ID match stored) | Show approval prompt with "Recognized" indicator |
| Suspicious (known name, different ID) | Show warning: "Agent 'X' with different ID" — require explicit re-trust |
---
## Design Decisions
| Decision | Choice | Rationale |
|----------|--------|-----------|
| Session refresh | None — re-authenticate after expiry | Keep it simple |
| Concurrent sessions | One per agent — new approval invalidates previous | Predictable state |
| Deny behavior | Single-request denial, no blocking | Simple first pass |
---
## Database Schema
### New Tables
```sql
-- Registered/approved agents
CREATE TABLE agents (
id INTEGER PRIMARY KEY AUTOINCREMENT,
name TEXT NOT NULL,
agent_id TEXT NOT NULL UNIQUE, -- UUID from agent
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
last_seen DATETIME,
trusted BOOLEAN DEFAULT 1 -- can be revoked
);
-- Pending access requests and sessions
CREATE TABLE agent_sessions (
id INTEGER PRIMARY KEY AUTOINCREMENT,
request_token TEXT NOT NULL UNIQUE,
agent_name TEXT NOT NULL,
agent_id TEXT NOT NULL,
status TEXT DEFAULT 'pending', -- pending, approved, denied, expired
created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
expires_at DATETIME NOT NULL, -- request expires after 5 min
session_token TEXT, -- populated on approval
session_expires_at DATETIME -- session TTL (1 hour)
);
CREATE INDEX idx_agent_sessions_request ON agent_sessions(request_token);
CREATE INDEX idx_agent_sessions_session ON agent_sessions(session_token);
```
---
## API Endpoints
### Authentication (no auth required)
| Method | Path | Purpose |
|--------|------|---------|
| POST | `/agent/auth/request` | Request access (returns request_token) |
| GET | `/agent/auth/poll?token=X` | Poll for approval status |
### Authentication (browser session required)
| Method | Path | Purpose |
|--------|------|---------|
| POST | `/agent/auth/approve` | User approves request |
| POST | `/agent/auth/deny` | User denies request |
### Context (agent session required)
| Method | Path | Purpose |
|--------|------|---------|
| GET | `/agent/context` | Full 7-day context |
### Write Operations (agent session required)
| Method | Path | Purpose | Priority |
|--------|------|---------|----------|
| PATCH | `/agent/tasks/{id}/due` | Update due date | P1 |
| POST | `/agent/tasks/{id}/complete` | Complete task | P1 |
| POST | `/agent/tasks/{id}/uncomplete` | Reopen task | P1 |
| PATCH | `/agent/tasks/{id}` | Update details (title, desc) | P2 |
| POST | `/agent/tasks` | Create task | P3 |
| POST | `/agent/shopping/add` | Add shopping item | P3 |
---
## Context Response Format
```json
{
"generated_at": "2026-01-27T10:30:00-10:00",
"range": {
"start": "2026-01-27",
"end": "2026-02-03"
},
"timeline": [
{
"id": "task_123",
"source": "todoist",
"type": "task",
"title": "Buy groceries",
"description": "Milk, eggs, bread",
"due": "2026-01-27T17:00:00-10:00",
"priority": 2,
"completable": true,
"url": "https://todoist.com/..."
}
],
"summary": {
"total_items": 42,
"by_source": {"todoist": 15, "trello": 20, "plantoeat": 7},
"overdue": 3,
"today": 8
}
}
```
---
## Browser Components
### WebSocket Endpoint
- Path: `/ws/notifications`
- Purpose: Push agent request alerts to open browser tabs
- Must handle: reconnect on disconnect, authentication check
### Approval UI
- Trigger: WebSocket message of type `agent_request`
- Display: Modal or toast notification
- Content:
- Agent name
- Agent ID (truncated to 8 chars)
- Trust indicator: "New Agent" / "Recognized" / "Warning: Different ID"
- Actions: Approve / Deny buttons
### Agent Management (Phase 3)
- List of trusted agents with last-seen timestamp
- Revoke access button per agent
---
## Session Configuration
| Parameter | Value |
|-----------|-------|
| Request expiry | 5 minutes |
| Session TTL | 1 hour |
| Poll interval (agent-side) | 2 seconds |
---
## Security Considerations
1. **Rate limiting** on `/agent/auth/request` — 10 requests/minute per IP
2. **Tokens** are cryptographically random (32 bytes, base64url)
3. **HTTPS required** — tokens in Authorization header
4. **No CSRF** for agent endpoints — token-based auth, not cookies
5. **One session per agent** — new approval invalidates previous session
---
## Implementation Phases
### Phase 1: Auth Flow + Read Context
Files to create/modify:
- `migrations/010_agent_tables.sql` — new tables
- `internal/store/sqlite.go` — agent/session CRUD methods
- `internal/handlers/agent.go` — new handler file for agent endpoints
- `internal/handlers/websocket.go` — WebSocket notification hub
- `cmd/dashboard/main.go` — register new routes
- `web/templates/partials/agent-approval.html` — approval modal
- `web/static/js/app.js` — WebSocket connection + approval UI logic
Endpoints:
- POST `/agent/auth/request`
- GET `/agent/auth/poll`
- POST `/agent/auth/approve`
- POST `/agent/auth/deny`
- GET `/agent/context`
- WS `/ws/notifications`
### Phase 2: Write Operations (P1 + P2)
- POST `/agent/tasks/{id}/complete`
- POST `/agent/tasks/{id}/uncomplete`
- PATCH `/agent/tasks/{id}/due`
- PATCH `/agent/tasks/{id}`
### Phase 3: Create + Management
- POST `/agent/tasks`
- POST `/agent/shopping/add`
- Agent management UI (list, revoke)
---
## Testing Strategy
### Unit Tests
- `internal/store/sqlite_test.go` — agent/session CRUD
- `internal/handlers/agent_test.go` — endpoint logic
### Integration Tests
- Full auth flow: request → approve → poll → context
- Identity binding: same name different ID triggers warning
- Session expiry: requests fail after TTL
### Manual Testing
- Open dashboard in browser
- Run agent simulation script to request access
- Verify notification appears
- Approve and verify context returned
---
## Files Reference
| Purpose | File |
|---------|------|
| Migration | `migrations/010_agent_tables.sql` |
| Store methods | `internal/store/sqlite.go` |
| Agent handlers | `internal/handlers/agent.go` (new) |
| WebSocket hub | `internal/handlers/websocket.go` (new) |
| Route registration | `cmd/dashboard/main.go` |
| Approval modal | `web/templates/partials/agent-approval.html` (new) |
| Client JS | `web/static/js/app.js` |
|
