Conciseness

The body is lean and assumes competence: a safe-start command block, five one-line safety bullets, a compact command/purpose table, and two pointers to discovery commands. No concept over-explanation or padding — anchor 5 ('Lean and efficient; every token earns its place').

Actionability

The 'Safe start' block gives three fully executable copy-paste commands and the table enumerates every subcommand with a purpose. It stops short of anchor 5 because the most common mutations (create, update, respond) have no executable example — syntax is delegated to '--help' and 'gog schema', which are discovery commands rather than specific examples covering common cases.

Workflow Clarity

A clear sequence is present (auth check → schema discovery → readonly read) with explicit pre-write checkpoints: 'Use --dry-run before supported writes' and 'Confirm the exact account, object, and mutation before any write or delete'. Validation for the destructive commands (delete, delete-calendar) is present so the destructive-operation cap does not apply; the gap versus anchor 5 is that there is no post-write verification or error-recovery loop.

Progressive Disclosure

A short, well-organized overview that delegates bulk command syntax to runtime discovery ('gog calendar <command> --help', 'gog schema calendar <command> --json') and shared rules to the parent skill via a single clearly-signaled one-level reference ('Read ../gog/SKILL.md first'). No bundle files are needed and nothing that belongs in a separate file is inlined — anchor 5.

Specificity

"Google Calendar operations through gog" names the domain but the only action word is the generic "operations" — it matches anchor 2 ('Names the domain but actions are minimal or generic', e.g. 'Processes PDF files'). It is not a 3 because no concrete action (create, list, delete events, free/busy) is stated.

Completeness

"Google Calendar operations" communicates a tool and domain but reads as a vague 'what', and there is no 'Use when...' clause or equivalent trigger guidance — matching anchor 2 ('Has a vague what and no when'). Not a 3, which requires a clear 'what' with concrete actions; not a 1 because the domain and tool are clearly identified.

Trigger Term Quality

It includes natural terms users would say ('Google Calendar', 'calendar'), but misses common variations such as 'events', 'meetings', 'scheduling', or 'appointments'. This fits anchor 3 ('Some relevant keywords but missing common variations or synonyms') rather than 4, since keyword coverage is thin beyond 'calendar'.

Distinctiveness Conflict Risk

"Google Calendar" carves a clear niche with minimal conflict risk against unrelated skills, but the absence of any action words leaves minor overlap risk with sibling Google-Workspace skills that also go 'through gog' (e.g. Gmail, Drive). Fits anchor 4 ('Mostly distinct; minor overlap risk with closely related skills').