Conciseness

The body is mostly command-driven with no conceptual padding (no explanation of what nohup or uv is), but it could be tightened: the ~110-line inline cleanup script is padded with echo step-banners and decorative separators, log-directory creation ("mkdir -p ~/.openviking/log") is repeated in both Environment Setup and Server Startup, and the four "Verify Server is Running" methods duplicate material that reappears in Verification and Troubleshooting. This lands on anchor 3 rather than 4, where only minor trimming would be needed.

Actionability

Everything is copy-paste ready: a complete server config JSON with placeholders clearly flagged for replacement, exact curl commands with expected outputs ("Expected: {\"status\": \"ok\"}"), a ready-to-run cleanup script, and troubleshooting entries structured as Check/Solution pairs with executable commands. It matches the top anchor — specific examples cover the common cases.

Workflow Clarity

Every procedure is explicitly sequenced with validation checkpoints and feedback loops: startup saves the PID and verifies via the health endpoint; shutdown escalates graceful kill to force-kill and verifies the process is gone; and the destructive cleanup stops the server first (aborting with an error if it cannot), creates a timestamped backup, requires a typed 'DELETE' confirmation, and reports the restore command. The destructive-operation validation cap does not apply — this matches the top anchor.

Progressive Disclosure

No bundle files exist (references/, scripts/, assets/ are absent), and all ~440 lines live in SKILL.md. Section headers and a table of contents give real structure, but content that clearly belongs in separate files — the full cleanup script and the troubleshooting guide — is inlined, which fits anchor 3 rather than 4 (where most content would be appropriately split into referenced files).

Specificity

The description lists multiple concrete actions — "configure, install, start, stop, and cleanup the server" — giving comprehensive coverage of the server-operations domain with no vague filler. It clearly matches the top anchor rather than anchor 4, since the action list covers the skill's full scope (setup, runtime control, and cleanup) rather than leaving minor gaps.

Completeness

Both parts are explicitly present: the "what" is five concrete actions ("Operate and maintain OpenViking server - configure, install, start, stop, and cleanup") and the "when" is stated ("Use when need to setup or manage OpenViking service deployment"). It sits at anchor 4 rather than 5 because the trigger clause covers only setup/manage and the slightly garbled phrasing ("Use when need to") makes it less crisp than the anchor-5 example's concrete, well-formed trigger phrases.

Trigger Term Quality

Natural trigger phrases like "Use when need to setup or manage OpenViking service deployment" are present, alongside operation verbs users would actually say (start, stop, install). It falls short of anchor 5 because common variations users might say — restart, upgrade, troubleshoot, deploy — are missing from the trigger clause.

Distinctiveness Conflict Risk

The named system ("OpenViking server") creates a clear niche with distinct triggers; no other plausible skill would fire on these phrases, so conflict risk is minimal — matching the top anchor.