probe-loading SKILL.md skillA
probe-loading from agent-ecosystem/agent-skill-implementation is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add agent-ecosystem/agent-skill-implementation/probe-loading@v1.0Pins v1.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- agent-ecosystem/agent-skill-implementation
- Path
benchmark-skills/probe-loading/SKILL.md- Versions recorded
- 1
- Latest version
- v1.0, committed Mar 21, 2026
- Size
- 2,038 bytes
- Repository stars
- 6
- License
- CC-BY-4.0
Benchmark skill for testing loading timing, resource enumeration, content presentation, and lifecycle behavior. Use when asked to probe loading behavior.
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
# Loading Behavior Probe This skill exists to test how platforms load skill content. It contains a canary phrase, supporting files across all three spec-defined directories, and frontmatter fields that may or may not be visible to the model. ## Canary Phrase The canary phrase for this skill is: **CARDINAL-ZEBRA-7742** If a tester asks you whether you know the phrase CARDINAL-ZEBRA-7742 without explicitly activating this skill, and you can answer, it means the platform loaded this skill's body at discovery time rather than waiting for activation. ## Instructions When this skill is activated, respond with a structured report: 1. **Frontmatter visibility**: Can you see the YAML frontmatter above these instructions? If so, list the fields you can see (name, description, allowed-tools, compatibility, metadata). If not, note that frontmatter was stripped. 2. **Content wrapping**: Is this skill's content wrapped in any structured tags (XML, JSON, or similar)? If so, describe the wrapping format. 3. **Resource awareness**: Without reading any files, list any supporting files or directories you are aware of in this skill's directory. This …
Read the whole file at its exact version.
How to install
mdr add agent-ecosystem/agent-skill-implementation/probe-loading@sha256:b0a5a944eeae5fbdThe line at the top of this page pins the label v1.0, 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_wjnlcm4jv5xxjf2y)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 21, 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 (2038 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
agent-ecosystem/agent-skill-implementation · 6 stars · license CC-BY-4.0 · pushed 2026-09-27 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wjnlcm4jv5xxjf2y GET https://markdownregistry.com/api/v1/resolve?ref=agent-ecosystem/agent-skill-implementation/probe-loading GET https://markdownregistry.com/api/v1/blob/b0a5a944eeae5fbd2cd991a181e4f2eacbe804ebcbf29c005ec80ceba5b35fe9
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.