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AF webflow-designer-extension

Build Webflow Designer Extensions that run inside the Webflow Designer. Use when creating, debugging, or modifying Designer Extensions (iframes that interact with Webflow's Designer API). Covers CLI usage, element manipulation, styles, components, pages, variables, assets, error handling, and UI design patterns for Webflow's design system.

ClawHub Agent Skills author: Ben Sabic v1.1.0 20 files body ≈ 1 546 tokens Open the sourceclawhub.ai↗ analyzed 3 d ago

As a process F 40/100 · Will not run — References files that are not bundled: assets/webflow-variables.css

GeneratorDesignSoftware developmentWriting and documentstype 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
94/100
safety, quality, tests
Safety 60%
99
Quality 40%
86
Run on models
none yet
Process rating
F
40/100
Will not run
References files that are not bundled: assets/webflow-variables.css
Tools and files w 18
0
Result and completion w 14
0
Failures and branches w 10
0
the three weakest of ten parameters · all ten

How to improve

  1. The text references files that are not there: add them or drop the references.
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 · 1

✓ No critical or high findings

Medium and low: 1
  • low Secrets in code secret-high-entropy-token references/elements-api.md:137
    High-entropy token-like string (may be an id, hash or a credential) (detector / deny-list definition; documentation table row)
    | Pre-built Layouts | `LayoutFeaturesList`, `LayoutFeaturesMetrics`, `LayoutFeaturesTable`, `LayoutFooterDark`, `LayoutFooterLight`, `LayoutFooterSubscribe`, `LayoutGalleryOverview`, `LayoutGalleryScr
    detectortable

Files scanned: 20. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning missing-ref reference to a missing file: assets/webflow-variables.css

Process rating: all ten parameters 40/100

Will not run. References files that are not bundled: assets/webflow-variables.css
  • 0Tools and files. 1 referenced file(s) missing: assets/webflow-variables.css
  • 0Result and completion. Does not say what the result is
  • 0Failures and branches. Linear process with no failure handling
  • 0Progress reporting. Says nothing while it works
  • 20When it triggers. No condition that starts the skill
  • 30Running it twice. 7 mutating operations with no state check
  • 70Inputs and preconditions. Inputs and preconditions are listed
  • 100Steps. 36 steps
  • 100Consistency. Name and required fields are in place
  • 100Execution cost. Instruction body is 1546 tokens

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
  • +2Single-language instructions
  • +3Description length 341: enough signal without eating the budget
  • +4Structure: 12 headings
  • +3Step-by-step instructions: 36 items
  • +4Has examples (3 code blocks)
  • +4Reference files are cited in the instructions (17 of 17)
  • +3All 1 scripts are documented
  • +1License stated

Quality base 70; lint remarks subtract, signals add up to 100. Result: 86.

External checks

ClawHub: clean
This is a coherent documentation skill for building Webflow Designer Extensions, with only normal development and example-code risks to review.
LLM: benign (high) · VirusTotal: benign · 27 May 2026