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Start Remotion Studio from packages/example and open it in the Codex browser. Use when the user invokes /studio or $studio, asks to launch the example Studio, or wants the Remotion Studio dev UI available locally.

76

Quality

93%

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SKILL.md
Quality
Evals
Security

Quality

Content

100%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.

An exemplary operational runbook: every step is executable, ordered, and guarded against realistic failure modes (port collisions from other worktrees, stale Studio instances, wrong browser-opening behavior). It is maximally lean for its scope and requires no bundle files.

DimensionReasoningScore

Conciseness

The 28-line runbook contains zero conceptual padding; the sole rationale ("Another worktree may already be using that port, and probing it first can open the wrong Studio") is non-obvious operational context that earns its place. Nothing can be trimmed without losing a distinct failure-mode guard, so it is lean rather than merely efficient.

5 / 5

Actionability

Fully copy-paste ready: `bun i && bun run build`, `cd packages/example && bunx remotion studio --no-open`, plus explicit tool-selection rules ("Use `bunx`, not `npx`", "Always pass `--no-open`") and concrete curl/tool_search follow-ups. No vague or abstract steps.

5 / 5

Workflow Clarity

A clear 7-step sequence with an explicit contingency branch ("If the CLI says Studio is already running, use the exact URL printed by that CLI invocation"), a source-of-truth rule ("the CLI output is the source of truth"), and verification via curl only after the URL is identified. Not a destructive or batch operation, so the validation cap does not apply.

5 / 5

Progressive Disclosure

Under 50 lines, single-task, no external references needed, and no references/ scripts/ or assets/ bundle exists to link. The Overview and Workflow sections are well organized, which satisfies the rubric's simple-skill exception for a full score.

5 / 5

Total

20

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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 strong description: it states exactly what it does and when to use it with concrete, natural trigger terms including the slash-command forms. The only gap is narrow capability coverage (launch-only) and a few missing synonyms.

DimensionReasoningScore

Specificity

"Start Remotion Studio from packages/example and open it in the Codex browser" names two concrete actions with a precise path and target, fitting the 'several specific actions; minor gaps' anchor. Not 5 because coverage is launch-only, and not 3 because the actions are scoped more precisely than the minimal 1-2-action anchor.

4 / 5

Completeness

Explicitly answers both: what ("Start Remotion Studio from packages/example and open it in the Codex browser") and when with concrete trigger phrases ("Use when the user invokes /studio or $studio..."). Matches the 5 anchor directly.

5 / 5

Trigger Term Quality

"invokes /studio or $studio", "asks to launch the example Studio", and "wants the Remotion Studio dev UI available locally" are natural trigger phrasings including slash-command forms. Not 5 because common synonyms like "run/start Studio" or "preview compositions" are missing.

4 / 5

Distinctiveness Conflict Risk

"Remotion Studio", "packages/example", and "Codex browser" establish a clear niche with distinct triggers that would not plausibly fire a generic dev-server or build skill. Minimal conflict risk.

5 / 5

Total

18

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20

Passed

Validation

100%

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
Reviewed

Table of Contents

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