probe-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd SKILL.md skillA

probe-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd from agent-ecosystem/agent-skill-implementation is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add agent-ecosystem/agent-skill-implementation/probe-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd@git:20260926.cb3708f

Pins git:20260926.cb3708f 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-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd/SKILL.md
Versions recorded
1
Latest version
git:20260926.cb3708f, committed Sep 26, 2026
Size
1,246 bytes
Repository stars
6
License
CC-BY-4.0

Length-unit probe ascii-sixty-four. Benchmark skill whose name is an ASCII name of exactly 64 characters, the spec's cap, so it should be listed on every platform that counts in any unit. Use when asked to probe name length units.

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

# Exact-Cap Name Probe

This skill's name is the fixture: the directory name and the frontmatter
name match, and the only rule in play is how long the name is when
counted in a particular unit. The spec says a name "must be 1-64
characters" and "may only contain unicode lowercase alphanumeric
characters (`a-z`, `0-9`) and hyphens", which leaves both the counting
unit and the character set open to interpretation. Read together with
its siblings and with the 72-character ASCII fixture from
`invalid-name-tolerance`, this skill's presence or absence from the
catalog shows which unit the platform counts, or whether it rejects
non-ASCII names regardless of length.

This body never repeats the description's marker phrase, so the phrase
can only have come from the catalog listing.

## Instructions

When activated, report: "Exact-Cap Name Probe activated." and state your skill's
name exactly as your catalog lists it.

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add agent-ecosystem/agent-skill-implementation/probe-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd@sha256:3425cb9e536f50c8

The line at the top of this page pins the label git:20260926.cb3708f, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_eit3slwtoe2liawp.svg)](https://markdownregistry.com/a/art_eit3slwtoe2liawp)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Sep 26, 2026.

versioncommittedcommitsizeaudit
git:20260926.cb3708f latest2026-09-26 cb3708f 1,246 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (1246 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

GitHub

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_eit3slwtoe2liawp
GET https://markdownregistry.com/api/v1/resolve?ref=agent-ecosystem/agent-skill-implementation/probe-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd
GET https://markdownregistry.com/api/v1/blob/3425cb9e536f50c8ca4d8fea11bc9ec3b4ae4194e2ef0d87f776ea91952f42c6

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.

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