probe-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd git:20260926.cb3708fA

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---
name: probe-name-at-exactly-sixty-four-characters-to-mark-the-cap-abcd
description: 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.
---

# 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.