Schema | web perception

web perception

Describes the environment variables required to run the server.

Name	Required	Description	Default
`MCP_API_URL`	No	Override the analysis API base (advanced / self-hosted). Default: https://www.codedswitch.com	https://www.codedswitch.com
`WEBEAR_BASE_URL`	No	URL of your dev server (where middleware is mounted). Default: http://localhost:4000	http://localhost:4000
`CODEDSWITCH_API_KEY`	Yes	API key from codedswitch.com — required for analyze_audio and describe_audio

Features and capabilities supported by this server

Capability	Details
`tools`	{ "listChanged": true }

Functions exposed to the LLM to take actions

Name	Description
capture_audioA	Record a short clip of what the running web app is currently outputting. Returns a capture ID you can pass to analyze_audio or describe_audio.
analyze_audioA	Run signal analysis on a captured audio clip. Returns RMS, peak dB, clipping, spectral centroid, frequency band energy, estimated BPM, and timing jitter.
describe_audioA	Send a captured audio clip to Gemini or GPT-4o to get a plain-English description of what it sounds like — useful when something sounds wrong but you cannot describe it.
diff_audioA	Compare two audio captures and flag what changed — loudness, tone, timing, clipping. Use this before and after a code change to verify the audio impact.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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