Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add TheSmokeDev/taskchad-os --skill heartbeat-monitorgit clone --depth 1 https://github.com/TheSmokeDev/taskchad-osWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/thesmokedev/taskchad-os/heartbeat-monitor)<a href="https://agentmods.dev/skills/thesmokedev/taskchad-os/heartbeat-monitor"><img src="https://agentmods.dev/badge/skills/thesmokedev/taskchad-os/heartbeat-monitor/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/thesmokedev/taskchad-os/heartbeat-monitor"><img src="https://agentmods.dev/badge/skills/thesmokedev/taskchad-os/heartbeat-monitor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00055 | $0.00448 |
| Opus 5.5 | $0.00022 | $0.00179 |
| Sonnet 5.5 | $0.00011 | $0.00090 |
| Haiku 4.5 | $0.00006 | $0.00045 |
Grade A, and why
heartbeat-monitor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Heartbeat Monitor
Check that the running stack is healthy and report a single green/red verdict.
What to probe
The framework runs a local API on port 4322 (see
.claude/sections/03_* / orchestration). Probe the pieces that matter:
| Component | Probe |
|---|---|
| Local API | GET http://127.0.0.1:4322/health returns 200 |
| Chat process | process for run_chat.sh is alive |
| Memory heartbeat | last heartbeat timestamp is < 2× the interval old |
| Disk | vault partition has free space |
Run
bash optional-skills/devops/heartbeat-monitor/scripts/healthcheck.sh
# exit 0 = all green, exit 1 = something is down
The script prints a per-check table and sets a non-zero exit code on any failure, so it composes with cron / CI / an external uptime service.
Escalation
- For local use, surface the red verdict in chat.
- For unattended monitoring, point an external uptime service (Healthchecks.io,
UptimeRobot, a cron on another host) at this script or at the
/healthroute — a monitor running inside the same process it watches can't report its own death. - This skill only reads state; it does not restart anything. Pair with
log-triageto explain why a check went red.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 51 lines · 55 tokens per session scan A ebcc40120b9d
heartbeat-monitor is a skill published in the GitHub repository TheSmokeDev/taskchad-os (28 stars, last pushed 16d ago), licensed MIT. It adds 55 tokens to every session and 448 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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