io.github.cyanheads/browser-compat-mcp-server

by io.github.cyanheads· v0.3.1Official MCP Registry

MCP Bill of Materials

A machine-readable inventory of what this server exposes and depends on: tools with their effects, transports, packages, findings and provenance (schema version 1.0). Third-party text in it is escaped. Also available from the REST API at /api/v1/servers/a8c4a58a-784b-4718-b0b1-478419b947f6/mcbom.

MCP Bill of Materials

root{21}

schema_version: "1.0"

bom_format: "squatch-mcbom"

generator{3}

classifier_version: "rules_v1@2026-10-11.1"

unicode_version: "18.0.0"

server{7}

title: null

description: "Browser compatibility and Baseline status for any web feature — offline, from bundled MDN data."

version: "0.3.1"

homepage_url: null

source: "official_registry"

upstream_status: "active"

publisher{4}

namespace: "io.github.cyanheads"

display_name: "io.github.cyanheads"

type: "registry_namespace"

status: "unclaimed"

organization: null

repository{5}

url: "https://github.com/cyanheads/browser-compat-mcp-server.git"

provider: "github"

owner: "cyanheads"

verified: false

packages[2]

0{4}

registry_type: "npm"

identifier: "@cyanheads/browser-compat-mcp-server"

version: "0.3.1"

transport: "stdio"

1{4}

registry_type: "npm"

identifier: "@cyanheads/browser-compat-mcp-server"

version: "0.3.1"

transport: "streamable-http"

transports[3]

0{5}

kind: "package"

type: "stdio"

endpoint_url: null

endpoint_host: null

auth_type: "unknown"

1{5}

kind: "package"

type: "streamable-http"

endpoint_url: null

endpoint_host: null

auth_type: "unknown"

2{5}

kind: "remote"

type: "streamable-http"

endpoint_url: "https://browser-compat.caseyjhand.com/mcp"

endpoint_host: "browser-compat.caseyjhand.com"

auth_type: "none"

auth{3}

type: "none"

authorization_servers[0]

scopes[0]

protocol{4}

era: "modern"

negotiated_version: "2026-07-28"

supported_versions[0]

transport_type: "streamable-http"

tools[5]

0{9}

title: "Browsercompat Check Baseline"

effect: "READ"

effect_confidence: 0.56

capabilities[0]

risk_severity: "INFO"

fingerprint: "e3fdfd8aa9d87163bc75b06d0b0532055b11a73384966e99b3ad21a11fa3f685"

input_schema_fingerprint: "f64ae2df8e95fab93ba0d3c9eda31bea371c7546af74fd89378341ea5c1238d3"

annotations{5}

title: null

readOnlyHint: true

destructiveHint: null

idempotentHint: true

openWorldHint: false

1{9}

title: "Browsercompat Compare Support"

effect: "READ"

effect_confidence: 0.813

capabilities[0]

risk_severity: "INFO"

fingerprint: "1551fe754b5bff58d1aae4411893c7fedd9ab0b92f0774c98398f9163dd2aa0b"

input_schema_fingerprint: "919dd37f870acb0765459c1c2c4d9154e6daa562d55f9eca108763e9d4fd5841"

annotations{5}

title: null

readOnlyHint: true

destructiveHint: null

idempotentHint: true

openWorldHint: false

2{9}

title: "Browsercompat Get Feature"

effect: "READ"

effect_confidence: 0.813

capabilities[0]

risk_severity: "INFO"

fingerprint: "1ceb5e2a6fc72ddcfcc025cf6464d2f5a1fe71ce031ed68c54d2ad95c681571b"

input_schema_fingerprint: "2a1d8c96ccf27e4c34549bb04f4a2da9fd3e67c2ad6cdb603f434d2f63b61709"

annotations{5}

title: null

readOnlyHint: true

destructiveHint: null

idempotentHint: true

openWorldHint: false

3{9}

title: "Browsercompat List Reference"

effect: "READ"

effect_confidence: 0.813

capabilities[1]

0{2}

capability: "CLOUD_INFRASTRUCTURE"

confidence: 0.567

risk_severity: "INFO"

fingerprint: "32c75863f9e3fc8c246e487a4084badc28f9c23eb32cd014e2b36e9c7bb0a9e5"

input_schema_fingerprint: "5dcd3763fd3b654e9c48f216d06f4c170cbd54c8bc42166bf8423504cb851811"

annotations{5}

title: null

readOnlyHint: true

destructiveHint: null

idempotentHint: true

openWorldHint: false

4{9}

title: "Browsercompat Search Features"

effect: "READ"

effect_confidence: 0.813

capabilities[1]

0{2}

capability: "CLOUD_INFRASTRUCTURE"

confidence: 0.558

risk_severity: "INFO"

fingerprint: "3c6e5e5167b4f2df764f05ee65e78702bf0e8f0f449c7ceea9319df76e6103ea"

input_schema_fingerprint: "78ec6b02b7c8d9b27182f46e06b2219f9448022187ac7fd1c3fc485577b2ad63"

annotations{5}

title: null

readOnlyHint: true

destructiveHint: null

idempotentHint: true

openWorldHint: false

resources[2]

0{4}

key: "skill://browser-compat-guide/SKILL.md"

kind: "resource"

mime_type: "text/markdown"

fingerprint: "3ea971228ab207e5be2ab7b19370cf7014fc1d16477af055e7fe916cb858e423"

1{4}

key: "skill://{+path}"

kind: "template"

mime_type: null

fingerprint: "9777dc7f1cf468158c157032a0ccebf9b50270f4e8753af9ccaf2fe99890ccf0"

prompts[0]

extensions[1]

0: "io.modelcontextprotocol/skills"

data{6}

privacy_completeness: "not_provided"

data_categories[0]

ai_training: null

retention_policy: null

processing_regions[0]

subprocessors[0]

external_integrations[1]

0{3}

host: "browser-compat.caseyjhand.com"

registrable_domain: "caseyjhand.com"

source: "transport"

findings[2]

0{6}

check_id: "SQ-TOOL-EXFIL-DIRECTIVE"

category: "prompt_injection"

severity: "HIGH"

title: "Asks the AI model to pass conversation data or secrets"

subject_type: "tool"

subject_name: "browsercompat_compare_support"

1{6}

check_id: "SQ-TOOL-EXFIL-DIRECTIVE"

category: "prompt_injection"

severity: "HIGH"

title: "Asks the AI model to pass conversation data or secrets"

subject_type: "tool"

subject_name: "browsercompat_search_features"

trust{9}

registry_namespace: "verified_upstream"

publisher_identity: "unverified"

organization: "unverified"

domain: "unverified"

repository: "unverified"

source_provenance: "partial"

security_scan: "findings_detected"

privacy_transparency: "not_provided"

monitoring: "active"

provenance{4}

registry_name: "io.github.cyanheads/browser-compat-mcp-server"

registry_content_sha256: "9b671c3c8b1dad8abbee3ed7978e71a221d930d919c8a228592d14187f85aff1"

scan_snapshot_fingerprint: "3e45f235681267ad2d17e819a85c878041ab143cf6c09eecff9db6e83180988b"

scanner_version: "1.0.0"

timestamps{4}

generated_at: "2026-11-15T02:13:46.028Z"

observed_at: "2026-11-11T12:20:09.36+00:00"

registry_published_at: "2026-11-11T10:27:14.757588+00:00"

registry_updated_at: null