install-canvas-capture-browser

Install and verify the pinned Chrome for Testing build used by the private Remotion Canvas Capture extension on Apple Silicon macOS. Use when setting up Canvas Capture, when Recorder Chrome is missing or has the wrong version, or when the canvas-capture-extension installer reports that Chrome for Testing 150.0.7842.0 (r1631007) is unavailable.

Quality

90%

Does it follow best practices?

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Securityby

Passed

No findings from the security scan

Quality

Content

93%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A concise, fully actionable single-purpose skill that delegates executable logic to a bundled script and gives copy-paste install and launch commands. The only gap is an explicit post-launch verification checkpoint in the body, which keeps workflow_clarity at 4.

Suggestions

Add an explicit verification step after launch (e.g., confirm the browser opens with CanvasDrawElement enabled and reports version 150.0.7842.0) to give the workflow a clear validation checkpoint.

Include a brief error-recovery note for the case where the installer refuses to overwrite an incompatible existing app, pointing back to step 1 after the user removes it.

Dimension	Reasoning	Score
Conciseness	Lean and efficient: a short purpose statement, an install step invoking a bundled script, and a launch command with no padding or explanations of concepts Claude already knows; every token earns its place.	5 / 5
Actionability	Provides copy-paste ready executable commands for both install (the bundled installer path) and launch (the full app binary path with all flags), and confirms the script's checksum/version behavior, covering the common cases.	5 / 5
Workflow Clarity	Clear numbered sequence (run installer, confirm path/version, launch) with the installer itself performing checksum and version validation, but the body lacks an explicit verify-after-launch checkpoint and an error-recovery feedback loop.	4 / 5
Progressive Disclosure	Well-organized single-purpose skill under 50 lines with a clear install/launch structure; the executable detail is correctly delegated to the bundled scripts/install-browser.sh referenced in the body, so no separate reference files are needed.	5 / 5
	Total	19 / 20 Passed

Description

87%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

A highly specific, third-person description that clearly states both what the skill does and when to use it with concrete trigger conditions. Minor gaps in action breadth and reliance on product-specific jargon keep specificity and trigger_term_quality at 4 rather than 5.

Dimension	Reasoning	Score
Specificity	Names concrete actions ('Install and verify the pinned Chrome for Testing build') and the specific target platform and version, but 'install and verify' is only two actions rather than a broad comprehensive action list.	4 / 5
Completeness	Explicitly answers 'what' (install and verify the pinned Chrome for Testing build) and 'when' with multiple concrete trigger clauses introduced by 'Use when', matching the score-5 anchor.	5 / 5
Trigger Term Quality	Includes natural trigger phrases users would say ('setting up Canvas Capture', 'Recorder Chrome is missing', 'wrong version') plus the exact version string, though it leans on product-specific jargon over widely generic synonyms.	4 / 5
Distinctiveness Conflict Risk	Targets a very specific niche (a private Remotion extension's pinned browser on Apple Silicon macOS) with distinct triggers, making overlap with other skills minimal.	5 / 5
	Total	18 / 20 Passed

Validation

100%

Warnings & errors only

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: remotion-dev/remotion
Path: .agents/skills/install-canvas-capture-browser/SKILL.md
Commit: eca4063

Reviewed: 2 days ago

Table of Contents

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