Verify

Visual verification, Figma comparison, style capture, and report generation.

9 modules

Module	Description
Annotate Screenshot	Draw labeled bounding boxes on screenshots to mark differences
Capture Element Styles	Capture computed styles from browser element
Compare Styles	Compare captured styles with expected values
Fetch Figma Style	Fetch design tokens from Figma API (token stays local)
Generate Report	Generate verification report in HTML/JSON/Markdown
Load Ruleset	Load verification rules from YAML file
Run Verification	Run full design verification: capture → compare → report
Run Spec Verification	Dynamic spec verification - compose any modules via YAML
Visual Diff	Compare reference design with dev site visually, annotate differences

Modules

Annotate Screenshot

verify.annotate

Draw labeled bounding boxes on screenshots to mark differences

Parameters:

Name	Type	Required	Default	Description
image_path	string	Yes	-	Path to the screenshot image
annotations	array	Yes	-	Array of annotations: [{label, x, y, width, height, color?, description?}]
output_path	string	No	-	Output path for annotated image (default: adds _annotated suffix)

Output:

Field	Type	Description
output_path	string	Path to annotated image
annotation_count	integer	Number of annotations drawn

Capture Element Styles

verify.capture

Capture computed styles from browser element

Parameters:

Name	Type	Required	Default	Description
url	string	Yes	-	URL to capture from
selector	string	Yes	-	CSS selector
wait_for	string	No	-	Wait for selector before capture
viewport_width	number	No	1280	Viewport width
viewport_height	number	No	800	Viewport height

Output:

Field	Type	Description
element	object	Captured element with styles
found	boolean	Whether element was found

Compare Styles

verify.compare

Compare captured styles with expected values

Parameters:

Name	Type	Required	Default	Description
actual	object	Yes	-	Captured element styles (from verify.capture)
expected	object	Yes	-	Expected styles to compare against
selector	string	No	-	Selector for reporting
size_tolerance	number	No	2.0	Tolerance for size (px)
spacing_tolerance	number	No	2.0	Tolerance for spacing (px)
font_size_tolerance	number	No	1.0	Tolerance for font size (px)
color_tolerance	number	No	5	Tolerance for color (0-255)
check_typography	boolean	No	True	Check typography
check_colors	boolean	No	True	Check colors
check_spacing	boolean	No	True	Check spacing
check_sizing	boolean	No	False	Check sizing

Output:

Field	Type	Description
passed	boolean	Whether comparison passed
violations	array	List of violations found
error_count	number	Number of errors
warning_count	number	Number of warnings

Fetch Figma Style

verify.figma

Fetch design tokens from Figma API (token stays local)

Parameters:

Name	Type	Required	Default	Description
file_id	string	Yes	-	Figma file key (from URL)
node_id	string	No	-	Specific node ID to fetch
node_name	string	No	-	Find node by name
token	string	No	-	Figma token (or use FIGMA_TOKEN env var)

Output:

Field	Type	Description
node	object	Figma node data
style	object	Extracted style

Generate Report

verify.report

Generate verification report in HTML/JSON/Markdown

Parameters:

Name	Type	Required	Default	Description
results	array	Yes	-	Comparison results from verify.compare
name	string	No	verify-report	Report name
url	string	No	-	URL that was verified
format	string	No	html	Output format (html, json, markdown, all)
output_dir	string	No	./verify-reports	Output directory
screenshots	array	No	-	Screenshot paths to include

Output:

Field	Type	Description
report_path	string	Path to generated report
summary	object	Summary statistics

Load Ruleset

verify.ruleset

Load verification rules from YAML file

Parameters:

Name	Type	Required	Default	Description
path	string	Yes	-	Path to YAML ruleset file

Output:

Field	Type	Description
ruleset	object	Parsed ruleset
rules_count	integer	Number of rules

Run Verification

verify.run

Run full design verification: capture → compare → report

Parameters:

Name	Type	Required	Default	Description
url	string	Yes	-	URL to verify
selectors	array	No	-	CSS selectors to verify
ruleset_path	string	No	-	Path to YAML ruleset file
expected_styles	object	No	-	Expected styles per selector
figma_file_id	string	No	-	Figma file ID for comparison
figma_token	string	No	-	Figma token (or FIGMA_TOKEN env)
figma_mapping	object	No	-	Selector to Figma node mapping
output_dir	string	No	./verify-reports	Output directory
report_format	string	No	html	Report format
take_screenshot	boolean	No	True	Capture screenshot
viewport_width	number	No	1280	Viewport width
viewport_height	number	No	800	Viewport height

Output:

Field	Type	Description
passed	boolean	Overall verification passed
summary	object	Summary statistics
report_path	string	Path to generated report

Example: Example

url: http://localhost:3000
selectors: ["button[type=\"submit\"]", "input[type=\"email\"]"]

Example: Example

url: http://localhost:3000
selectors: ["button.primary"]
figma_file_id: abc123xyz
figma_mapping: {"button.primary": "Primary Button"}

Example: Example

url: http://localhost:3000
ruleset_path: ./design-rules.yaml

Run Spec Verification

verify.spec

Dynamic spec verification - compose any modules via YAML

Parameters:

Name	Type	Required	Default	Description
ruleset_path	string	No	-	Path to YAML ruleset file
ruleset	object	No	-	Inline ruleset object

Output:

Field	Type	Description
passed	boolean
summary	object
results	array

Visual Diff

verify.visual_diff

Compare reference design with dev site visually, annotate differences

Parameters:

Name	Type	Required	Default	Description
reference_url	string	Yes	-	URL or local image path of reference design
dev_url	string	Yes	-	URL of development site to compare
output_dir	string	No	./verify-reports/visual-diff	Output directory for reports
focus_areas	array	No	-	Areas to focus on (e.g. ["header", "login form"])
viewport_width	number	No	1280	Browser viewport width
viewport_height	number	No	800	Browser viewport height
model	string	No	gpt-4o	Vision model to use
api_key	string	No	-	OpenAI API key (or use OPENAI_API_KEY env var)

Output:

Field	Type	Description
similarity_score	number	Similarity percentage (0-100)
annotations	array	List of annotated differences
annotated_image	string	Path to annotated screenshot
report_path	string	Path to HTML report
summary	string	Summary of differences