dev.workers.perch-app.kestrel/kestrel
dev.workers.perch-app.kestrel/kestrel
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/2d26f56b-be0b-4cbb-8a2a-9dc808cf783a/mcbom.
MCP Bill of Materials
root{21}
schema_version: "1.0"
bom_format: "squatch-mcbom"
generator{3}
name: "squatch-mcp"
classifier_version: "rules_v1@2026-10-11.1"
unicode_version: "18.0.0"
server{7}
name: "dev.workers.perch-app.kestrel/kestrel"
title: null
description: "Watch any URL for changes: baseline, then check for a diff. Free, no signup/key."
version: "1.0.0"
homepage_url: "https://kestrel.perch-app.workers.dev"
source: "official_registry"
upstream_status: "active"
publisher{4}
namespace: "dev.workers.perch-app.kestrel"
display_name: "dev.workers.perch-app.kestrel"
type: "registry_namespace"
status: "unclaimed"
organization: null
repository: null
packages[0]
transports[1]
0{5}
kind: "remote"
type: "streamable-http"
endpoint_url: "https://kestrel.perch-app.workers.dev/mcp"
endpoint_host: "kestrel.perch-app.workers.dev"
auth_type: "none"
auth{3}
type: "none"
authorization_servers[0]
scopes[0]
protocol{4}
era: "legacy"
negotiated_version: "2024-11-05"
supported_versions[0]
transport_type: "streamable-http"
tools[4]
0{9}
name: "check_watch"
title: null
effect: "READ"
effect_confidence: 0.703
capabilities[0]
risk_severity: "MEDIUM"
fingerprint: "80dbbd993afd44d8d0eecd581cea4157980df8a08fdab50cb64db865e5c32249"
input_schema_fingerprint: "1c1a25b1baa5fd375cbe160e55d9a134d2ee6280eef8fa34b806d104edb1d63c"
annotations{5}
title: null
readOnlyHint: null
destructiveHint: null
idempotentHint: null
openWorldHint: null
1{9}
name: "create_watch"
title: null
effect: "WRITE"
effect_confidence: 0.836
capabilities[1]
0{2}
capability: "EXTERNAL_COMMUNICATION"
confidence: 0.718
risk_severity: "MEDIUM"
fingerprint: "86e098267d46887daed85f6d252b76d3f3c436438ff74eb94fbf54379b9f5720"
input_schema_fingerprint: "e4730b2adc17aa52ac83f0594bf8df91394c1a1921ce880fc425ec7a611b83cd"
annotations{5}
title: null
readOnlyHint: null
destructiveHint: null
idempotentHint: null
openWorldHint: null
2{9}
name: "delete_watch"
title: null
effect: "DELETE"
effect_confidence: 0.65
capabilities[0]
risk_severity: "MEDIUM"
fingerprint: "ebd69eb2c81b0b48820feb74c35f7652a49bb015ec5e9fa857ecbd53eb870caa"
input_schema_fingerprint: "a7c1f839bd5746e7d0bc5a69d5a268a9d1815e3b1ea5e133baf38a6e21daff9b"
annotations{5}
title: null
readOnlyHint: null
destructiveHint: null
idempotentHint: null
openWorldHint: null
3{9}
name: "list_watches"
title: null
effect: "READ"
effect_confidence: 0.808
capabilities[0]
risk_severity: "MEDIUM"
fingerprint: "555c09ca67961fb0db3fa6e337f6b604d7d044fa14b101a7712edefbdb1f6cbd"
input_schema_fingerprint: "d5545f2d488eec54d7a2fa05f1ffa1bd84768e9024eb25f05c4c6461c7454240"
annotations{5}
title: null
readOnlyHint: null
destructiveHint: null
idempotentHint: null
openWorldHint: null
resources[0]
prompts[0]
extensions[0]
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: "kestrel.perch-app.workers.dev"
registrable_domain: "perch-app.workers.dev"
source: "transport"
findings[8]
0{6}
check_id: "SQ-CONFORMANCE-MODERN-FAILURE"
category: "conformance"
severity: "LOW"
title: "Protocol conformance checks failed"
subject_type: "server"
subject_name: null
1{6}
check_id: "SQ-REPO-MISSING"
category: "provenance"
severity: "LOW"
title: "No source repository linked"
subject_type: "server"
subject_name: null
2{6}
check_id: "SQ-SERVER-AUTH-NONE-WRITE"
category: "authentication"
severity: "MEDIUM"
title: "State-changing tools available without authentication"
subject_type: "server"
subject_name: null
3{6}
check_id: "SQ-TOOL-CREDENTIAL-ARGUMENT"
category: "schema"
severity: "MEDIUM"
title: "Asks the AI model to supply credentials as arguments"
subject_type: "tool"
subject_name: "check_watch"
4{6}
check_id: "SQ-TOOL-CREDENTIAL-ARGUMENT"
category: "schema"
severity: "MEDIUM"
title: "Asks the AI model to supply credentials as arguments"
subject_type: "tool"
subject_name: "create_watch"
5{6}
check_id: "SQ-TOOL-CREDENTIAL-ARGUMENT"
category: "schema"
severity: "MEDIUM"
title: "Asks the AI model to supply credentials as arguments"
subject_type: "tool"
subject_name: "delete_watch"
6{6}
check_id: "SQ-TOOL-CREDENTIAL-ARGUMENT"
category: "schema"
severity: "MEDIUM"
title: "Asks the AI model to supply credentials as arguments"
subject_type: "tool"
subject_name: "list_watches"
7{6}
check_id: "SQ-TOOL-DESTRUCTIVE-NO-ANNOTATION"
category: "annotations"
severity: "LOW"
title: "Destructive tool without annotations"
subject_type: "tool"
subject_name: "delete_watch"
trust{9}
registry_namespace: "verified_upstream"
publisher_identity: "unverified"
organization: "unverified"
domain: "unverified"
repository: "not_provided"
source_provenance: "unknown"
security_scan: "no_critical_findings"
privacy_transparency: "not_provided"
monitoring: "active"
provenance{4}
registry_name: "dev.workers.perch-app.kestrel/kestrel"
registry_content_sha256: "0f4f431f62c63a4099122260b9c3cfd9c3174701561c312af659e2045d6458b0"
scan_snapshot_fingerprint: "e7b1037aa6327bf605f5b2e5fb2584f42035daea035a91b51950abba3ba1388a"
scanner_version: "1.0.0"
timestamps{4}
generated_at: "2026-11-15T04:54:55.870Z"
observed_at: "2026-11-05T12:21:50.838+00:00"
registry_published_at: "2026-09-22T04:34:21.853858+00:00"
registry_updated_at: null