UI Reviewer MCP
MCP-first UI/UX review layer for AI-generated frontends. Enables reviewing web pages via URL, capturing screenshots, extracting layout metrics, and generating structured repair plans for agents.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Verified is a snapshot. Live keeps it current, and builds your track record.
⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
codepawl
Source: Glama
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Install from
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AFTER_API_PORTAFTER_FIXTURE_PORTAFTER_REPORTAFTER_SUMMARYAPI_BASEAPI_PORTBASELINE_API_PORTBASELINE_FIXTURE_PORTBASELINE_SUMMARYBEFORE_REPORTCODEX_HOMECODEX_REPAIR_TIMEOUT_MSDEMO_REPORT_DIRDIFF_LABELEVAL_FIXTURE_DIREVAL_FIXTURE_SEED_DIREVAL_PHASEFIXTURE_PORTHOSTLOAD_CODEX_OPENAI_KEYOPENAI_API_KEYOPENAI_VISION_MODELREAL_HOMEREPAIR_FIXTURE_PORTRESET_FIXTURESRETURN_IMAGESREVIEW_AUDIENCEREVIEW_GOALREVIEW_LABELREVIEW_OUTPUT_DIRREVIEW_TASTE_PROFILESKIP_CODEX_REPAIRTEST_URLUI_REVIEWER_CHROMEUSE_VISIONUXRAY_API_BASEUXRAY_API_KEYUXRAY_AUTO_UPGRADEUXRAY_CLOUD_FORCEUXRAY_CLOUD_MODEUXRAY_REAL_HOMEUXRAY_REPOUXRAY_REQUIRE_PUBLIC_URLUXRAY_UPDATE_ENDPOINTUXRAY_UPGRADE_ALLOW_DIRTYPORTDependencies
6 dependencies, 1 flagged: playwright-core
Tool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
4/4 tools missing one or more hints — health_check (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); check_update (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); review_ui_url (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +1 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
3/4 tool handlers declare input schemas (75%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
2/4 tool handlers wrap calls in try/catch (50%)
Wrap each tool handler body in try/catch and return a structured error response.
Tests exist
No test files found
Add tests that exercise each declared tool.
Secrets not logged
1 secret value sent to console.log
Redact or omit secret values from log output.
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