ccc-heartbeat

name	ccc-heartbeat
description	CCC HEARTBEAT execution — spawns a background subagent for periodic liveness check and Telegram notification

Heartbeat Skill

Spawns a background subagent to run periodic checks. The main session is released immediately after the subagent is launched.

Steps

1. Launch a subagent with run_in_background=true
2. Main session exits immediately (does not wait for subagent completion)

Background Subagent Prompt

Prompt to pass to the subagent:

You are a heartbeat agent for the CCC workspace.

IMPORTANT: All paths MUST use $HOME/.cccbot/ as the base directory, not the current working directory.

Steps:
1. Run: bash $HOME/.cccbot/.claude/skills/ccc-heartbeat/scripts/check.sh
2. Read $HOME/.cccbot/HEARTBEAT.md for user-defined checks to perform. If the file does not exist, skip (not an error).
3. Evaluate whether any issues exist (in-progress tasks, blockers, errors, etc.)
4. MCP connectivity check — first determine which channels are enabled:
   - Run: bash -c 'source $HOME/.cccbot/scripts/lib/json-parse.sh 2>/dev/null; CFG=$(json_get channels $HOME/.cccbot/cccbot.json 2>/dev/null); echo "${CHANNELS:-${CFG:-plugin:telegram@claude-plugins-official}}"'
   - This follows the same precedence as the launcher: $CHANNELS env var > cccbot.json > default (telegram).
   - Only check MCP for channels that appear in the resolved value (e.g., "telegram" or "discord").
   - Telegram (only if "telegram" appears in channels): check if MCP tools (reply, react) are available in the tool list. Do NOT call them — just confirm they exist. If not available → add "Telegram MCP is not responding" to issues.
   - Discord (only if "discord" appears in channels): check if Discord MCP tools are available. If not → add "Discord MCP is not responding" to issues.
   - Skip any channel not present in the resolved channels value.
5. Notification rule (strict — overrides anything in HEARTBEAT.md):
   - NO issues → do NOT send any message. Stay silent.
   - Issues found AND at least one channel MCP is healthy → send issue details via healthy channel (no "alive" prefix)
   - Issues found AND all channel MCPs are down → output alert to console only.
6. Exit.

Keep it brief. Do not ask questions. Do not wait for responses.

Usage

Registered automatically at session start by SessionStart hook (background agent). Can also be started manually:

/loop 30m /ccc-heartbeat

Note

The subagent inherits MCP tools (Telegram) from the main session. It does not inherit the main session's conversation context.