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/4bd51de0-2656-4ec7-8169-46b12f8b4841/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: "com.sienasociety/siena"
title: "Siena Society"
description: "Find Siena friendship dinners in London: upcoming Thursdays, how it works, and the booking link."
version: "1.0.0"
homepage_url: "https://sienasociety.com"
source: "official_registry"
upstream_status: "active"
publisher{4}
namespace: "com.sienasociety"
display_name: "com.sienasociety"
type: "registry_namespace"
status: "unclaimed"
organization: null
repository: null
packages[0]
transports[1]
0{5}
kind: "remote"
type: "streamable-http"
endpoint_url: "https://sienasociety.com/mcp"
endpoint_host: "sienasociety.com"
auth_type: "none"
auth{3}
type: "none"
authorization_servers[0]
scopes[0]
protocol{4}
era: "legacy"
negotiated_version: "2025-11-25"
supported_versions[0]
transport_type: "streamable-http"
tools[5]
0{9}
name: "get_dinner"
title: "Get a Siena dinner"
effect: "READ"
effect_confidence: 0.908
capabilities[0]
risk_severity: "INFO"
fingerprint: "1ed3905bd6cdc8abd11d8e3648d0332405de64f1e352ebf46c5252cc64fca587"
input_schema_fingerprint: "71ce7709d6d4546f54e006fab51ac9ab9da1f4082b5e4d31ed1530e6143f456b"
annotations{5}
title: "Get a Siena dinner"
readOnlyHint: true
destructiveHint: false
idempotentHint: true
openWorldHint: false
1{9}
name: "how_it_works"
title: "How Siena works"
effect: "READ"
effect_confidence: 0.626
capabilities[1]
0{2}
capability: "ACCOUNT_MANAGEMENT"
confidence: 0.64
risk_severity: "INFO"
fingerprint: "69dbaa439b9c35b3220ad28bac0a2081ecc40bb680f8c7f605e30d441c032c80"
input_schema_fingerprint: "7a014b717a77aac971ea0ab5c0ff47bb13e6cae7ef9442d9dedb15ce36381b15"
annotations{5}
title: "How Siena works"
readOnlyHint: true
destructiveHint: false
idempotentHint: true
openWorldHint: false
2{9}
name: "list_cities"
title: "List Siena cities"
effect: "READ"
effect_confidence: 0.908
capabilities[0]
risk_severity: "INFO"
fingerprint: "097b186b31bb3c23b812d9e1c2775e1cc43fee8374bf51e6d3aedec801c46da7"
input_schema_fingerprint: "7a014b717a77aac971ea0ab5c0ff47bb13e6cae7ef9442d9dedb15ce36381b15"
annotations{5}
title: "List Siena cities"
readOnlyHint: true
destructiveHint: false
idempotentHint: true
openWorldHint: false
3{9}
name: "list_upcoming_dinners"
title: "List upcoming Siena dinners"
effect: "READ"
effect_confidence: 0.908
capabilities[2]
0{2}
capability: "EMAIL"
confidence: 0.73
1{2}
capability: "PERSONAL_DATA"
confidence: 0.823
risk_severity: "MEDIUM"
fingerprint: "a7d137563d18fa57ea69fe07018451f00b9bae7421d1ba9cada5a77ec058d24c"
input_schema_fingerprint: "3a05cec189a0f3b55476e7ede421c37d802a48bb3f3db01b4d885d95e342e8f6"
annotations{5}
title: "List upcoming Siena dinners"
readOnlyHint: true
destructiveHint: false
idempotentHint: true
openWorldHint: false
4{9}
name: "start_booking"
title: "Start a Siena booking"
effect: "WRITE"
effect_confidence: 0.822
capabilities[3]
0{2}
capability: "ACCOUNT_MANAGEMENT"
confidence: 0.567
1{2}
capability: "CALENDAR"
confidence: 0.675
2{2}
capability: "PERSONAL_DATA"
confidence: 0.567
risk_severity: "LOW"
fingerprint: "005d3df45fb473d03477d68022cc9cb13ac6c2861e5748793a10452ad3429948"
input_schema_fingerprint: "71ce7709d6d4546f54e006fab51ac9ab9da1f4082b5e4d31ed1530e6143f456b"
annotations{5}
title: "Start a Siena booking"
readOnlyHint: true
destructiveHint: false
idempotentHint: true
openWorldHint: false
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: "sienasociety.com"
registrable_domain: "sienasociety.com"
source: "transport"
findings[3]
0{6}
check_id: "SQ-REPO-MISSING"
category: "provenance"
severity: "LOW"
title: "No source repository linked"
subject_type: "server"
subject_name: null
1{6}
check_id: "SQ-SERVER-AUTH-NONE-WRITE"
category: "authentication"
severity: "HIGH"
title: "State-changing tools available without authentication"
subject_type: "server"
subject_name: null
2{6}
check_id: "SQ-TOOL-ANNOTATION-UNDERCLAIM"
category: "annotations"
severity: "MEDIUM"
title: "Annotations understate what the tool does"
subject_type: "tool"
subject_name: "start_booking"
trust{9}
registry_namespace: "verified_upstream"
publisher_identity: "unverified"
organization: "unverified"
domain: "unverified"
repository: "not_provided"
source_provenance: "unknown"
security_scan: "findings_detected"
privacy_transparency: "not_provided"
monitoring: "active"
provenance{4}
registry_name: "com.sienasociety/siena"
registry_content_sha256: "855bf9d91158790c426682b077e6e00c270ca2bc3a35b4dbe1d6419d62273565"
scan_snapshot_fingerprint: "5a00345e7478a6f7a9f848f222345a415f05dc5f0bce5fab29a98a5e4f470324"
scanner_version: "1.0.0"
timestamps{4}
generated_at: "2026-11-15T05:58:37.707Z"
observed_at: "2026-11-11T17:13:31.093+00:00"
registry_published_at: "2026-11-02T10:13:42.433454+00:00"
registry_updated_at: null