| name | react-message |
| description | Add an emoji reaction to the trigger message. Use this to express quick emotions or acknowledge messages without sending a full text reply. |
| allowed-tools | Bash |
React Message Skill
Add an emoji reaction to the message that triggered this conversation.
Critical Rules
- Use appropriate emoji: Choose an emoji that matches the tone and context of the conversation.
- Reaction is optional: You don't have to react. Only react when it feels natural.
- Can be used with or without send-reply: You may react AND send a reply, or just react without replying.
- Timeout: The script won't run for more than 30 seconds. If it hangs, do stop_bash.
- Use the correct emoji format: For custom emojis, use the format provided in the emoji list. For standard Unicode emojis, use the emoji character directly (e.g., "👍", "❤️").
- React only ONCE: Never use this skill more than once. Each time you trigger a reaction, it will replace the previous one, as only one reaction can be displayed at a time. Think carefully and choose just one reaction.
Usage
${HOME}/.agents/skills/react-message/scripts/react-message.ts \
--session-id "$SESSION_ID" \
--emoji "👍"
--session-id: Use the session id rendered in your system prompt. $SESSION_ID works only in per-spawn deployments; in shared-process mode it is not set and the skill library resolves the owning session automatically — a mismatched value is never honored.
Examples
React with a Unicode emoji:
${HOME}/.agents/skills/react-message/scripts/react-message.ts \
--session-id "$SESSION_ID" \
--emoji "❤️"
React with a custom platform emoji (use the useAsReaction format from the emoji list):
${HOME}/.agents/skills/react-message/scripts/react-message.ts \
--session-id "$SESSION_ID" \
--emoji ":custom_emoji_name:"
