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seo-image-gen

AI image generation for SEO assets: OG/social preview images, blog hero images, schema images, product photography, infographics. Powered by Gemini via nanobanana-mcp. Requires banana extension installed. Use when the user wants an SEO asset and says "OG image", "social preview", "hero image", "blog image", "product photo", "infographic", "seo image", "image-gen", "favicon", "schema image", or "pinterest pin". Not for general artwork, banners, or thumbnails unrelated to SEO.

Quality

86%

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SecuritybySnyk

Passed

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SKILL.md
Quality
Evals
Security

Quality

Content

75%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 well-structured, actionable overview that leans on tables for density and defers detail to clearly labeled one-level-deep references. The main weaknesses are duplicated install/setup content, an unverified primary generation path, and no explicit output validation for batch operations.

Suggestions

Add an explicit validation step after batch generation (e.g., verify each output file exists and is non-empty before applying the SEO checklist), which would close the batch-workflow validation gap.

State the parameters of the core MCP tools (gemini_generate_image, set_aspect_ratio) or point to references/mcp-tools.md at the point of use in the pipeline, so the primary path is as executable as the fallback.

Consolidate the repeated install instructions (Prerequisites vs Error Handling table) into one location, and unify the reference root variables while fixing the missing spaces in the Reference Documentation list.

DimensionReasoningScore

Conciseness

The body is table-driven and largely lean, but install instructions are duplicated (Prerequisites and the Error Handling table both repeat "./extensions/banana/install.sh"), and the Architecture Note and Cross-Skill Integration sections add context beyond what the workflow strictly needs.

4 / 5

Actionability

Concrete, executable commands appear throughout ("magick output.png -quality 85 output.webp", the fallback generate.py invocation, presets.py list, cost_tracker.py log, ImageObject JSON and og: meta snippets), but the primary generation path defers the actual tool call parameters and Reasoning Brief construction to reference files, leaving minor gaps.

4 / 5

Workflow Clarity

The 6-step pipeline has a pre-flight availability check, a post-generation SEO checklist, and an error-recovery table with a fallback command, but batch operations (batch N variations, batch.py --csv) get pre-checks (cost estimate, "Plan first", rate-limit check) without any explicit validation of outputs after batch generation.

4 / 5

Progressive Disclosure

The "Reference Documentation" section is clearly signaled ("Load on-demand. Do NOT load all at startup") with nine one-level-deep references each given a one-line description, and in-text citations point to specific files; minor gaps include two different root variables (${CLAUDE_SKILL_DIR} vs ${CLAUDE_PLUGIN_ROOT}) and a few malformed list entries missing a space after the colon.

4 / 5

Total

16

/

20

Passed

Description

95%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 frontmatter description: concrete capabilities, an explicit "Use when" clause with abundant natural triggers, and a well-drawn boundary against non-SEO image work. The only minor gap is that it enumerates output types rather than multiple distinct actions.

DimensionReasoningScore

Specificity

The description names the domain and lists concrete deliverables ("OG/social preview images, blog hero images, schema images, product photography, infographics") plus the mechanism ("Powered by Gemini via nanobanana-mcp"), but the only core action is generation with variants, so it falls short of the comprehensive multi-action anchor 5.

4 / 5

Completeness

It explicitly answers both "what" (asset types generated via Gemini/nanobanana-mcp) and "when" ("Use when the user wants an SEO asset and says..." with concrete trigger phrases), and adds a negative boundary ("Not for general artwork, banners, or thumbnails unrelated to SEO").

5 / 5

Trigger Term Quality

Eleven natural trigger phrases ("OG image", "social preview", "hero image", "blog image", "product photo", "infographic", "seo image", "image-gen", "favicon", "schema image", "pinterest pin") give comprehensive synonym-level coverage of how users would phrase these requests.

5 / 5

Distinctiveness Conflict Risk

A clear SEO-asset niche with distinct trigger terms and an explicit exclusion of general artwork/banners/thumbnails minimizes overlap with generic image-generation skills.

5 / 5

Total

19

/

20

Passed

Validation

87%

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

CriteriaDescriptionResult

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

referenced_paths_exist

Referenced path issues: 1 missing

Warning

Total

14

/

16

Passed

Repository

AgriciDaniel/claude-seo

Path

extensions/banana/skills/seo-image-gen/SKILL.md

Reviewed

Table of Contents

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