Conciseness

Roughly two-thirds of the body is gstack framework boilerplate unrelated to canary monitoring: the 45-line Voice/persona essay ("You are GStack, an open source AI builder framework shaped by Garry Tan's product, startup, and engineering judgment"), the telemetry onboarding dialogs, Contributor Mode, Completeness Principle, and Plan Status Footer. This is noticeably verbose padding, though not 1 because the canary-specific content (Phases 1-7) is itself efficient and does not explain concepts Claude already knows.

Actionability

The canary phases give concrete, mostly copy-paste commands: "$B goto <page-url>", "$B snapshot -i -a -o '.gstack/canary-reports/screenshots/<page-name>-<check-number>.png'", "$B console --errors", "$B perf", plus a concrete baseline.json schema and report template. Not 5 because page auto-discovery ("Extract the top 5 internal navigation links from the links output") gives no concrete extraction logic, and argument parsing ("Parse the user's arguments") is left unspecified. Not 3 because the guidance is executable, not pseudocode.

Workflow Clarity

Phases 1-7 are clearly sequenced with explicit validation checkpoints and thresholds ("load time exceeds 2x baseline -> MEDIUM ALERT", "Only alert on patterns that persist across 2 or more consecutive checks"), and a feedback loop on alerts via AskUserQuestion options A-D (investigate / continue / rollback / dismiss). Not 4 because all checkpoints are present, including the baseline comparison rule and the healthy-deploy baseline update step; monitoring is read-only so the destructive-operation cap does not apply.

Progressive Disclosure

Section headers give the file navigable structure, but no bundle files exist (no references/, scripts/, or assets/) and ~375 lines of shared framework content (Preamble, Voice, AskUserQuestion Format, Telemetry, Plan Status Footer) are inlined in SKILL.md instead of living in a shared reference file one level deep. Not 4 because content that clearly belongs in separate files is fully inlined; not 2 because structure and navigation are present and the canary core itself is well organized.

Specificity

Lists six concrete actions in third person: "Watches the live app for console errors, performance regressions, and page failures", "Takes periodic screenshots, compares against pre-deploy baselines, and alerts on anomalies". Comprehensive coverage of the skill's capabilities with no vague filler.

Completeness

Explicitly answers both: what ("Post-deploy canary monitoring. Watches the live app for console errors..." with the full action list) and when ("Use when: 'monitor deploy', 'canary', 'post-deploy check', 'watch production', 'verify deploy'"). Concrete trigger phrases are present, matching the anchor-5 example structure exactly.

Trigger Term Quality

Explicit natural trigger phrases users would actually say: "monitor deploy", "canary", "post-deploy check", "watch production", "verify deploy". Covers the synonym space for post-deploy verification well, including the skill's own name as a trigger. Not 4 because no common natural variation is obviously missing from this domain.

Distinctiveness Conflict Risk

"Post-deploy canary monitoring" is a clear niche with distinct triggers ("canary", "verify deploy") that no adjacent skill (CI checks, general browsing, incident response) would claim. Minimal conflict risk.