The body is mostly lean and free of concept-explanation padding, but the 'Guardrails' section restates rules already expressed in the numbered steps (e.g. prompt-for-selection, use of the status artifact graph), adding redundancy rather than new value, matching the 'mostly efficient but could be tightened' anchor.

It provides concrete, executable commands throughout — `openspec list --json`, `openspec status --change "<name>" --json`, `mkdir -p openspec/changes/archive`, and the `mv` invocation — plus concrete tool guidance (AskUserQuestion), matching the fully-executable anchor.

The six steps are clearly sequenced with explicit validation checkpoints (artifact completion, task completion) and confirm-before-proceed feedback loops for a destructive move operation, matching the clear-sequence-with-validation anchor.

No bundle files exist and none are needed; the single self-contained file is organized into well-labeled sections (Input, Steps, Output, Guardrails) with a clearly signaled cross-reference to the openspec-sync-specs skill, satisfying the well-organized single-file case for progressive disclosure.

It names the domain ('experimental workflow') and a concrete action ('Archive a completed change') but lists only a single action rather than multiple specific concrete actions, so it sits at the 'names domain and some actions' anchor rather than the level-3 multi-action examples.

It explicitly answers both 'what' ('Archive a completed change in the experimental workflow') and 'when' via an explicit 'Use when...' clause, matching the level-3 anchor for clearly answering both with an explicit trigger.

Phrases like 'finalize and archive a change' are reasonably natural, but 'experimental workflow' is internal jargon and common user variations (e.g. 'done', 'ship', 'close out') are missing, matching the 'some relevant keywords but missing common variations' anchor.

The niche is narrow and specific — archiving a completed change in the openspec experimental workflow — with distinct triggers unlikely to fire for unrelated skills, matching the 'clear niche with distinct triggers' anchor.