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heartbeat

Periodic wake-up service that checks HEARTBEAT.md for pending tasks and executes them automatically.

Skill by lasertsole

IndexedMIT★ 5
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/lasertsole-heartbeat

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About

Periodic wake-up service that checks HEARTBEAT.md for pending tasks and executes them automatically. Use this skill to write or update HEARTBEAT.md.

Use cases: writing

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Permissions

What this skill can do and what it asks for, from its SKILL.md and code. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found
Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/heartbeat

What's inside

Skill name
heartbeat
Description
Periodic wake-up service that checks HEARTBEAT.md for pending tasks and executes them automatically. Use this skill to write or update HEARTBEAT.md.
License
MIT
Instructions
93 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (10)

  • README.ja.md
  • README.ko.md
  • README.md
  • README.zh.md
  • SKILL.md
  • __init__.py
  • __init__.py · scripts/
  • base.py · scripts/
  • core.py · scripts/
  • evaluate.py · scripts/

SKILL.md (first lines)

## How to write HEARTBEAT.md

HEARTBEAT.md is the task manifest for the heartbeat service. Every tick, the service reads this file and lets the LLM decide whether there are active tasks to execute.

### Add a pending task
```python
from skills.builtin.core.heartbeat.scripts import add_task_to_heartbeat

task_text: str = (
    "{placeholder}"  # <- The task description to add (as a Markdown list item or paragraph)
)
index: int | None = int(
    "{placeholder}"
)  # <- Optional 0-based insertion position within Active Tasks content lines (skipping blanks and HTML comments). ``None`` (default) appends at end.

res = add_task_to_heartbeat(task_text, index)
print(res)
```

Example values for `task_text`:
```markdown
- Check email inbox, if there are unread emails from Alice, summarize and report
- If last code sync was more than 24 hours ago, pull latest main branch and run tests
- Send daily work report at 18:00: summarize today's conversation records
```

### List active tasks
```python
from skills.builtin.core.heartbeat.scripts import list_active_tasks

print(list_active_tasks())
```

### List completed tasks
```python
from skills.builtin.core.heartbeat.scripts import list_completed_tasks

print(list_completed_tasks())
```

### Move a finished task to completed
Use this when a task is done and won't be executed again — it moves the task from Active Tasks to Completed.
```python
from skills.builtin.core.heartbeat.scripts import move_task_to_completed

task_text: str = (
    "{placeholder}"  # <- The task description to add (as a Markdown list item or paragraph)
)
res = move_task_to_completed(task_text)
print(res)
```

### Remove task(s) from Completed
Both functions accept `None | str | list[str]` — the behavior is determined by the argument type:

- `None` → clear **all** completed records
- `str` → substring match, remove matching line(s)
- `list[str]` → substring match each string, remove all matching

```python
from skills.builtin.core.heartbeat.scripts import remove_tasks_from_completed

# Clear all completed records
res = remove_tasks_from_completed()
print(res)

# Remove any line containing "check email"
res = remove_tasks_from_completed("check email")
print(res)

# Remove multiple by substring match
res = remove_tasks_from_completed(["check email", "pull code", "daily report"])
print(res)
```

`clear_completed_tasks` is an alias with identical behavior:

```python
from skills.builtin.core.heartbeat.scripts import clear_completed_tasks

# all
res = clear_completed_tasks()
print(res)

# single substring
res = clear_completed_tasks("check email")
print(res)

# batch
clear_completed_tasks(["pull code", "report"])
print(res)
```

From lasertsole/sherry_agent, MIT.

More from lasertsole/sherry_agent

Signals

Stars
5
Forks
1
Open issues
0
Last commit (this folder)
Oct 18, 2026 (12 days ago)
Last release
Oct 18, 2026 (12 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

heartbeat skill. Agent Mart. https://agentmart.dev/skills/lasertsole-heartbeat (last updated 2026-10-24)