ping SKILL.md skillA
ping from haabe/mycelium is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add haabe/mycelium/ping@git:20261003.bb28d79Pins git:20261003.bb28d79 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- haabe/mycelium
- Path
plugins/mycelium/skills/ping/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261003.bb28d79, committed Oct 3, 2026
- First version recorded
- May 8, 2026
- Size
- 1,242 bytes
- Repository stars
- 51
- License
- MIT
Smoke-test skill that confirms the Mycelium plugin loaded correctly. Returns a deterministic marker string for plugin-shape validation. Not for end-user invocation in normal use.
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
# Ping (smoke-test only) When invoked, respond with exactly this single line and nothing else: ``` MYCELIUM_PLUGIN_LOAD_OK ``` This is a plugin-shape marker, not a version assertion — it confirms the plugin packaging works end-to-end (manifest → marketplace → install → namespaced invocation). The version a user is actually running comes from `/plugin list` or `plugin.json#version`, not this marker. (The marker was previously version-suffixed, which created drift: it stayed pinned at `_v0.20.0` while plugin.json moved through 10 patches. Detected during 2026-05-09 dogfood.) For real Mycelium skills, see the parent `skills/` directory once migration completes.
Read the whole file at its exact version.
How to install
mdr add haabe/mycelium/ping@sha256:e29a3e47353f312bThe line at the top of this page pins the label git:20261003.bb28d79, 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_z3gsqza2e2bu6zzp)
6 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between May 8, 2026 and Oct 3, 2026, about one every 30 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261003.bb28d79 latest | 2026-10-03 | bb28d79 | 1,242 B | A | view · diff |
| git:20260704.7639f18 | 2026-07-04 | 7639f18 | 1,211 B | A | view · diff |
| git:20260525.9fac942 | 2026-05-25 | 9fac942 | 1,211 B | A | view · diff |
| git:20260509.5f1b416 | 2026-05-09 | 5f1b416 | 891 B | A | view · diff |
| git:20260509.828e6d2 | 2026-05-09 | 828e6d2 | 707 B | A | view · diff |
| git:20260508.a515448 | 2026-05-08 | a515448 | 696 B | B | 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 (1242 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
haabe/mycelium · 51 stars · license MIT · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_z3gsqza2e2bu6zzp GET https://markdownregistry.com/api/v1/resolve?ref=haabe/mycelium/ping GET https://markdownregistry.com/api/v1/blob/e29a3e47353f312bfa9358413625a6db378cd3b0dd187a15030e9b7488479b2c
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.