---
name: add-reactions
description: Add WhatsApp emoji reaction support — receive, send, store, and search reactions.
disable-model-invocation: true
---

# Add Reactions

This skill adds emoji reaction support to Deus's WhatsApp channel: receive and store reactions, send reactions from the container agent via MCP tool, and query reaction history from SQLite.

## Phase 1: Pre-flight

### Check if already applied

Check if `src/status-tracker.ts` exists:

```bash
test -f src/status-tracker.ts && echo "Already applied" || echo "Not applied"
```

If already applied, skip to Phase 3 (Verify).

## Phase 2: Apply Code Changes

Reactions support is part of the WhatsApp MCP package in `packages/`. Check if the status tracker already exists:

```bash
test -f src/status-tracker.ts && echo "Already present" || echo "Not present"
```

If not present, the WhatsApp MCP package should include reactions support. Ensure the WhatsApp channel is installed and up to date by running `/add-whatsapp`.

The following files are involved:
- `scripts/migrate-reactions.ts` (database migration for `reactions` table with composite PK and indexes)
- `src/status-tracker.ts` (forward-only emoji state machine for message lifecycle signaling, with persistence and retry)
- `src/status-tracker.test.ts` (unit tests for StatusTracker)
- `container/skills/reactions/SKILL.md` (agent-facing documentation for the `react_to_message` MCP tool)
- Reaction support in `src/db.ts`, `src/channels/whatsapp.ts`, `src/types.ts`, `src/ipc.ts`, `src/index.ts`, `src/group-queue.ts`, and `container/agent-runner/src/ipc-mcp-stdio.ts`

### Run database migration

```bash
npx tsx scripts/migrate-reactions.ts
```

### Validate code changes

```bash
npm test
npm run build
```

All tests must pass and build must be clean before proceeding.

## Phase 3: Verify

### Build and restart

```bash
npm run build
```

Linux:
```bash
systemctl --user restart deus
```

macOS:
```bash
launchctl kickstart -k gui/$(id -u)/com.deus
```

### Test receiving reactions

1. Send a message from your phone
2. React to it with an emoji on WhatsApp
3. Check the database:

```bash
sqlite3 store/messages.db "SELECT * FROM reactions ORDER BY timestamp DESC LIMIT 5;"
```

### Test sending reactions

Ask the agent to react to a message via the `react_to_message` MCP tool. Check your phone — the reaction should appear on the message.

## Troubleshooting

### Reactions not appearing in database

- Check Deus logs for `Failed to process reaction` errors
- Verify the chat is registered
- Confirm the service is running

### Migration fails

- Ensure `store/messages.db` exists and is accessible
- If "table reactions already exists", the migration already ran — skip it

### Agent can't send reactions

- Check IPC logs for `Unauthorized IPC reaction attempt blocked` — the agent can only react in its own group's chat
- Verify WhatsApp is connected: check logs for connection status


---
Source attribution: sliamh11
Original project: https://github.com/sliamh11/Deus/blob/2f24c38a2ae42d3161492f0729975b286452f4b4/.claude/skills/add-reactions/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2026 Gavriel
Copyright (c) 2026 Liam Steiner

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: sliamh11
Original project: https://github.com/sliamh11/Deus/blob/2f24c38a2ae42d3161492f0729975b286452f4b4/.claude/skills/add-reactions/SKILL.md
Attribution basis: Source repository record

Fields of work: Marketing, Sales, Customer Support
Roles: Customer Success Manager, Social Media Manager, Support Agent
Specialties: API, Backend
Tools: SQLite, WhatsApp
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: b148c6a6ce1de786bec4a8988c3e0da822b6753134d7039a4ec993aa252b8cb3