world-presence SKILL.md skillA
world-presence from bdambrosio/cognitive_workbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add bdambrosio/cognitive_workbench/world-presence@git:20260808.dd76f2cPins git:20260808.dd76f2c in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- bdambrosio/cognitive_workbench
- Path
src/sensors/world-presence/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260808.dd76f2c, committed Aug 8, 2026
- Size
- 1,988 bytes
- Repository stars
- 10
- License
- MIT
Notices when someone comes near you or moves away in the shared world. Fires on the transition only, and carries the current situation with it.
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
# world-presence The push half of world embodiment. `world-look` answers "who is here?" when the agent thinks to ask; this fires when the answer *changes*, so the agent can notice someone arriving without being prompted. ## What it reports **Transitions, not state.** A level-reporting sensor on a 30-second schedule would emit "Bruce is still standing there" a hundred times an hour, and every emission costs a full agent turn. So it stays quiet while nothing changes, and speaks when someone crosses the proximity boundary in either direction. **But it carries state in the payload.** A bare "Bruce arrived" would force a `world-look` before the agent could say anything useful — a wasted iteration on every wake. The event ships the current positions, distances and ground with it, so the first iteration can already act. Current presence at any other moment is not this sensor's job: the system prompt's Embodiment block carries who is in the world, and `world-look` answers on demand. ## Hysteresis `enter_m` (12 m) is closer than `exit_m` (20 m) on purpose. With one threshold, someone standing near the boundary flaps arrive/leave on …
Read the whole file at its exact version.
How to install
mdr add bdambrosio/cognitive_workbench/world-presence@sha256:ab7c450c15d954f0The line at the top of this page pins the label git:20260808.dd76f2c, 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_atiaiu5ejoxo6kra)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 8, 2026.
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 (1988 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
bdambrosio/cognitive_workbench · 10 stars · license MIT · pushed 2026-10-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_atiaiu5ejoxo6kra GET https://markdownregistry.com/api/v1/resolve?ref=bdambrosio/cognitive_workbench/world-presence GET https://markdownregistry.com/api/v1/blob/ab7c450c15d954f070da8daf6324b0aa25395fbaebd199aab4f567eeed67ea03
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.