Conciseness

Roughly 340 of the ~530 body lines are gstack framework boilerplate unrelated to launching Chrome — the Voice persona essay, telemetry onboarding dialogs, AskUserQuestion format rules, Completeness Principle, Contributor Mode, and Plan Status Footer — which is several padded sections competing with the ~200 lines of actual skill instruction. Not 1 because the skill-specific portion itself is lean and free of concept explanations Claude already knows.

Actionability

The workflow is fully executable: copy-paste-ready bash for the setup check, pre-flight cleanup, `$B connect`, `$B status`, `$B goto`, and `$B snapshot -i`, with expected outputs named ("Confirm you see `Mode: headed`", port 34567) and specific fallback commands for each failure branch. Not 4 because there is no missing detail blocking execution of the common cases.

Workflow Clarity

The sequence SETUP → Step 0 cleanup → connect → verify → user confirmation → demo → next steps is explicit, with validation checkpoints at each transition (mode check, port check, A/B/C user confirmation) and feedback loops for error recovery (option C: re-run Step 0 + Step 1, try `$B focus`, then ask the user). This matches the top anchor; the operation is not destructive or batch, so no cap applies.

Progressive Disclosure

There is real structure (clear ## sections, numbered steps) and one-level-deep references that are reasonably signaled ("See $GSTACK_ROOT/ETHOS.md", read gstack-upgrade/SKILL.md for the upgrade flow), but a large amount of framework policy that clearly belongs in a separate shared file is inlined, burying the actual /connect-chrome instructions on line 341. Not 4 because the misplaced inline content is substantial, not a minor organization gap.

Specificity

The description lists several concrete actions ("Launch real Chrome controlled by gstack", "Side Panel extension auto-loaded", "connects Claude to a visible Chrome window", "live activity feed in the Side Panel") but omits capabilities the body covers, such as direct browse commands and the sidebar chat agent, so coverage has minor gaps rather than being comprehensive.

Completeness

It explicitly answers both questions: what it does ("Launch real Chrome controlled by gstack with the Side Panel extension auto-loaded... you can watch every action in real time") and when to use it ("Use when asked to 'connect chrome', 'open chrome', 'real browser', 'launch chrome', 'side panel', or 'control my browser'") with concrete trigger phrases, matching the top anchor.

Trigger Term Quality

Six natural trigger phrases a user would actually say — "connect chrome", "open chrome", "real browser", "launch chrome", "side panel", "control my browser" — cover the main synonyms (connect/open/launch) for this need. Not 4 because no common variation of the core request is missing.

Distinctiveness Conflict Risk

The gstack/Side Panel framing carves a clear niche with mostly distinct triggers, but "real browser" and "control my browser" are generic enough to overlap with a general browser-automation skill, so it is mostly distinct with minor overlap risk rather than minimal.