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AB blog-image

Generate a 1600px-wide webp blog thumbnail image using the nano-img CLI. Use when the user provides a blog topic or blog name and wants a thumbnail image generated and saved to ~/blog-images. Requires the nano-img-cli skill installed via openclaw.

ClawHub Agent Skills author: Dishant Sharma v1.1.4 MIT-0 3 files body ≈ 864 tokens Open the sourceclawhub.ai↗ analyzed 4 d ago

As a process B 73/100 · Nearly there — weak spots: result and completion, consistency, progress reporting

IntegrationMedia and videoInfrastructuretype and topics are labelled automatically from the skill text
Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode
JSON
Technical rating
A
92/100
safety, quality, tests
Safety 60%
100
Quality 40%
80
Run on models
none yet
Process rating
B
73/100
Nearly there
Result and completion w 14
0
Progress reporting w 2
0
Consistency w 8
40
the three weakest of ten parameters · all ten

How to improve

    For the model run — optional
    • Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
    • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

    Guard findings · 0

    ✓ No critical or high findings

    Files scanned: 3. Evidence is masked. Grey chips explain why severity was lowered.

    Against the Agent Skills spec

    ✓ No remarks against the Agent Skills spec

    Process rating: all ten parameters 73/100

    • 0Result and completion. Does not say what the result is
    • 0Progress reporting. Says nothing while it works
    • 40Consistency. Frontmatter name (blog-image) differs from the folder (re-blog-image)
    • 70When it triggers. States when to use, but not when not to
    • 70Failures and branches. 9 branches
    • 100Tools and files. No external tools needed
    • 100Steps. 23 steps
    • 100Inputs and preconditions. Inputs and preconditions are listed
    • 100Execution cost. Instruction body is 864 tokens
    • 100Running it twice. Mutating operations check current state
    • medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing

    Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

    Quality signals

    • +5Description has no quoted example phrases that should trigger the skill
    • +4Description does not say when NOT to use the skill (false activations)
    • +3Output format is not stated: the model decides each time
    • -41 reference files, but SKILL.md never points to them: the model will not open them
    • +1No license
    • +2Single-language instructions
    • +3Description length 247: enough signal without eating the budget
    • +4Structure: 6 headings
    • +3Step-by-step instructions: 23 items
    • +4Has examples (6 code blocks)

    Quality base 70; lint remarks subtract, signals add up to 100. Result: 80.

    External checks

    ClawHub: suspicious
    The skill appears intended to generate blog thumbnails, but it handles credentials and modifies local blog metadata in ways that are broader than the description makes clear.
    LLM: suspicious (high) · VirusTotal: · 30 May 2026