Individual skill
heartbeat
Set recurring checks or completion watches with `sno heartbeat` and its persistent log reader. Use for periodic reports or unattended long runs. Not for calendar scheduling or commands watched directly.
skills/S-communication-and-handoff/heartbeat/skill/SKILL.md
Source commit 1ca8a66158bc9ca26c288c6d5e7ebcf2ffb8491a
What was checked
- Matches the observed repository HEAD
- Yes
- Scanner rules are current
- Yes
- Repository scan complete
- No
- Skill scan complete
- Yes
- Observed behavior
- Network or broad shell
- Last checked
- Nov 10, 2026
These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.
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Repository context
- Repository stars (not skill ratings)
- 864
- Repository last updated
- Nov 4, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
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Files and excerpt
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Browse files
SKILL.mdcore · 12,327 bytesreferences/heartbeat-contract.jsonasset · 363 bytesscripts/selftest/run-selftest.shruns · 204 bytesscripts/selftest/text-check.pyruns · 4,910 bytes
Read excerpt
# heartbeat
Use the `sno heartbeat` command installed by `sno setup`. This skill supplies
instructions, not a program copy. If the command names a missing prerequisite, install
that tool and retry. On macOS install Homebrew `coreutils` (GNU `timeout`, `tail` and `mv`) and
put its `libexec/gnubin` directory on PATH; newer versions of the command also find the
`g`-prefixed names without it, and then the reader command they print says `gtail`. Install `bash`
and `flock` when required. Windows requires WSL.
[The bundled command contract](references/heartbeat-contract.json) pins the public syntax
checked by this skill's offline self-test. Use `sno heartbeat --help` for the installed program.
Before arming, verify that this harness provides both background execution and a
persistent reader that delivers new output into the agent's conversation. If either is