cachebeat SKILL.md skillA
cachebeat from arahim3/cachebeat is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arahim3/cachebeat/cachebeat@git:20261003.ea92cf1Pins git:20261003.ea92cf1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- arahim3/cachebeat
- Path
SKILL.md- Versions recorded
- 3
- Latest version
- git:20261003.ea92cf1, committed Oct 3, 2026
- First version recorded
- Sep 14, 2026
- Size
- 3,482 bytes
- Repository stars
- 86
- License
- MIT
Keep the Anthropic prompt cache warm by firing a tiny heartbeat only after N minutes of true session inactivity (any exchange resets the clock), so the next real turn reads the conversation at cached price / cached quota instead of a full uncached re-read. The heartbeat is a background Stop hook this skill registers (asyncRewake) - it re-arms itself after every turn, with no tool calls and no permission prompts. Use when the session may sit idle (training runs, CI, downloads, the user stepping…
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# cachebeat — prompt-cache keepalive heartbeat ## What you do when invoked `/cachebeat [minutes] [hours]` arms the heartbeat; `/cachebeat stop` turns it off. **There is nothing for you to run.** The heartbeat is the Stop hook in this skill's frontmatter: Claude Code registered it when this skill loaded, and when this turn ends the hook reads these same arguments from the transcript. - `minutes`: idle threshold — how long the session may sit silent before a beat. Default **50**, clamped to **5–55** (past ~55 the 1-hour cache TTL can lapse before a beat lands). - `hours`: auto-stop deadline. Default **8**, clamped to 1–24 — the abandoned-session guard: every beat costs a small cached-price request, so a forgotten heartbeat must end itself. - `stop` (or `off`): disarm. Reply in **ONE line** and call no tools — arming: the idle threshold, the auto-stop time, and that `/cachebeat stop` ends it sooner; stopping: that it is off. Nothing more. If the user asks in plain words to start, change or stop the heartbeat, invoke this skill (Skill tool) with the matching arguments: the hook only reads `/cachebeat` invocations. ## When the heartbeat wakes you …
Read the whole file at its exact version.
How to install
mdr add arahim3/cachebeat/cachebeat@sha256:4937eb41b5c0012fThe line at the top of this page pins the label git:20261003.ea92cf1, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ko55urwkjxxpkytl)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Sep 14, 2026 and Oct 3, 2026, about one every 9 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261003.ea92cf1 latest | 2026-10-03 | ea92cf1 | 3,482 B | A | view · diff |
| git:20260922.52fcb27 | 2026-09-22 | 52fcb27 | 6,825 B | A | view · diff |
| git:20260914.14dc82a | 2026-09-14 | 14dc82a | 6,110 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3482 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
arahim3/cachebeat · 86 stars · license MIT · pushed 2026-10-13 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ko55urwkjxxpkytl GET https://markdownregistry.com/api/v1/resolve?ref=arahim3/cachebeat/cachebeat GET https://markdownregistry.com/api/v1/blob/4937eb41b5c0012fd0cd8c02ac5c53319241ae291d43d317becb0a4e85ebe901
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.