{"id":"elbruno-mcpapp-colorpicker","name":"mcpapp-colorpicker","homepage":null,"repo_url":"https://github.com/elbruno/mcpapp-colorpicker","category":"devtools","subcategories":[],"tags":["mcp","mcp-app","dotnet","csharp","color-picker","ui","aspnetcore","http-transport","sample"],"what_it_does":"Provides a .NET Model Context Protocol (MCP) App with an interactive HTML color picker UI. Exposes an HTTP MCP endpoint at /mcp and a UI/resource endpoint for rendering the picker, with a tool named ColorPicker that accepts an optional initialColor (hex) and returns a result containing the UI resource URI to display.","use_cases":["Interactive selection of colors via an MCP tool UI","Generating/choosing HEX colors for design workflows inside MCP-capable clients (e.g., VS Code extension)","Demo/sample for building MCP Apps with .NET and AspNetCore tooling"],"not_for":["Production-grade design-system color services requiring persistence, user accounts, or auditability","Use cases needing authenticated multi-tenant access control","High-availability deployments where uptime/SLA and robust retry/idempotency guarantees are required"],"best_when":"You want a lightweight, local/dev-friendly MCP UI tool for choosing a color interactively.","avoid_when":"You need strong security guarantees (authn/authz, secrets management, abuse protection) or documented operational reliability (SLA, retry semantics, idempotency).","alternatives":["Build a custom web UI + REST endpoint and integrate it with an MCP server you control","Use an existing MCP UI extension/sample pattern from the official Model Context Protocol apps repository","Create a small local web app that returns selected HEX via a callback and integrate it with a client-side MCP tool flow"],"af_score":47.8,"security_score":30.8,"reliability_score":22.5,"package_type":"mcp_server","discovery_source":["github"],"priority":"high","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-03-30T15:42:41.961688+00:00","interface":{"has_rest_api":true,"has_graphql":false,"has_grpc":false,"has_mcp_server":true,"mcp_server_url":"http://localhost:3001/mcp","has_sdk":true,"sdk_languages":["C#"],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":[],"oauth":false,"scopes":false,"notes":"No authentication/authorization mechanism is described. The app runs locally (per README) and is reachable over HTTP; auth details are not documented."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Open-source sample (MIT). No pricing info provided."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":47.8,"security_score":30.8,"reliability_score":22.5,"mcp_server_quality":72.0,"documentation_accuracy":70.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":20.0,"rate_limit_clarity":20.0,"tls_enforcement":40.0,"auth_strength":10.0,"scope_granularity":10.0,"dependency_hygiene":55.0,"secret_handling":50.0,"security_notes":"TLS/auth are not described. The README suggests local HTTP and optionally exposing via ngrok, which may provide TLS externally but does not address transport security requirements for the app itself. No scope-based authorization or rate limiting/bot protection is documented.","uptime_documented":0.0,"version_stability":40.0,"breaking_changes_history":30.0,"error_recovery":20.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["No authentication details are provided; agents should assume unauthenticated access unless verified in code.","No retry/idempotency guidance is documented for the ColorPicker tool—avoid assuming safe retries for all interactions.","Rate limiting is not documented; if exposed publicly (e.g., via ngrok), agents should be prepared for potential throttling without guidance."]}}