grok-image-to-video

Animate a local image into a short MP4 through Ekko Studio using xAI Grok Imagine.

Quality

70%

Does it follow best practices?

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Passed

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tessl review fix ./packages/ekko-agent/skills/grok-image-to-video/SKILL.md

Quality

Content

86%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.

The content is highly actionable with a concrete executable command and a clear, validated workflow organized into clean sections; the main weakness is mild verbosity in the guardrail paragraph and validation expressed in prose rather than explicit checkpoints.

Suggestions

Tighten the guardrail paragraph by merging the 'Always use the Studio media endpoint...' and 'Studio owns...' sentences into a single concise constraint.

Add an explicit numbered validation checkpoint with a fix-and-retry loop (e.g., 'If the file is missing or the helper reports an error, surface the Studio error and stop') to lift workflow clarity.

Consider linking the helper script path as a Markdown reference so its role as the bundled implementation is signposted as progressive disclosure.

Dimension	Reasoning	Score
Conciseness	The body is efficient and assumes Claude's competence, with tight sections and a concrete command, but the guardrail paragraph ('Always use the Studio media endpoint... Do not call xAI directly... Studio owns xAI credential resolution...') could be trimmed, matching the 'efficient; minor over-explanation that could be trimmed' anchor rather than the perfectly lean anchor at 5.	4 / 5
Actionability	It provides a complete, copy-paste-ready command with all required and optional flags documented and an illustrative prompt, fitting the 'fully executable; copy-paste ready; specific examples cover common cases' anchor.	5 / 5
Workflow Clarity	The 6-step workflow is clearly sequenced with validation present (the helper verifies the download; step 6 verifies the file exists) and an Errors section for recovery, but validation is stated in prose rather than as an explicit numbered checkpoint with a fix-and-revalidate loop, matching anchor 4 rather than the fully checkpointed anchor at 5.	4 / 5
Progressive Disclosure	The skill is under 50 lines, well-organized into Workflow / Options / Errors sections, and its single external reference (scripts/grok-image-to-video.mjs, verified present) is clearly signaled with the full invocation path, meeting the simple-skill exception for a top score.	5 / 5
	Total	18 / 20 Passed

Description

53%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.

The description is concrete and tool-specific with a clear 'what', but it omits any explicit 'when to use' trigger clause, which the rubric caps at completeness 3 and leaves trigger-term coverage partial.

Suggestions

Add an explicit 'Use when...' clause naming the natural user request (e.g., 'Use when the user wants to turn a still image into a short video clip').

Broaden trigger-term coverage with synonyms and a file extension (e.g., 'image to video, animate a photo, animate .png/.jpg/.webp').

Optionally list one or two more concrete capabilities to lift specificity from a single action toward comprehensive coverage.

Dimension	Reasoning	Score
Specificity	It names the domain ('animate a local image into a short MP4') and one concrete action via a specific mechanism (Ekko Studio / xAI Grok Imagine), but lists only a single action rather than several, matching the 'domain and 1-2 concrete actions' anchor and falling short of the multi-action anchor at 4.	3 / 5
Completeness	The description gives a clear 'what' (animate a local image into a short MP4 through Ekko Studio) but contains no 'Use when...' clause or explicit 'when' trigger, which per the guidelines caps completeness at 3; it is not the 4 anchor because no explicit usage trigger is present.	3 / 5
Trigger Term Quality	It surfaces natural terms like 'animate a local image' and (via keywords) 'image to video' and 'animate image', but misses common synonyms a user might say and file extensions, fitting the 'some relevant keywords but missing common variations' anchor rather than the fuller coverage at 4.	3 / 5
Distinctiveness Conflict Risk	The tool-specific phrasing ('through Ekko Studio using xAI Grok Imagine') carves a clear niche with low conflict risk, sitting above the 'somewhat specific, some overlap' anchor at 3 but below 5 because the description lacks explicit distinct trigger phrases.	4 / 5
	Total	13 / 20 Passed

Validation

87%

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 — 14 / 16 Passed

Validation for skill structure

Criteria	Description	Result
metadata_version	'metadata.version' is missing	Warning
metadata_field	'metadata' should map string keys to string values	Warning

	Total	14 / 16 Passed

Repository: EKKOLearnAI/hermes-studio
Path: packages/ekko-agent/skills/grok-image-to-video/SKILL.md
Commit: 07ccb17

Reviewed: 5 days ago

Table of Contents

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