---
schema: "interfacedelta-service-md/1"
target_key: "sha256:58bdebe13a0560375e9839580048ea7035c8439a7afb367d6e47e21e1a870f8b"
origin: "https://choruskeepsake.com"
protocols: ["mcp"]
observed_at: "2026-11-14T05:01:27.540Z"
generated_at: "2026-11-14T10:16:56.708Z"
record_url: "https://interfacedelta.com/atlas/sha256:58bdebe13a0560375e9839580048ea7035c8439a7afb367d6e47e21e1a870f8b"
record_api: "https://interfacedelta.com/api/v1/record/services/sha256:58bdebe13a0560375e9839580048ea7035c8439a7afb367d6e47e21e1a870f8b"
source: "InterfaceDelta atlas"
license_note: "Use of this record is governed by https://interfacedelta.com/terms."
---

# Service record: https://choruskeepsake.com

## Identity
- Origin: https://choruskeepsake.com
- Endpoints: https://choruskeepsake.com/mcp
- Protocols: mcp
- Registry names: com.choruskeepsake/chorus
- First retained observation: 2026-11-14T05:01:27.540Z
- Latest observation: 2026-11-14T05:01:27.540Z

## Tools
MCP tools, OpenAPI operations, WebMCP tools and A2A skills; excludes prompts and resources.
Total capabilities: 19; non-tool capabilities: 0.
- Tool 1: add\_people (mcp); inputs: book, people; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 2: arrange\_the\_book (mcp); inputs: book, cover, leave\_out, order, put\_back, title; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 3: book\_status (mcp); inputs: book; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 4: change\_the\_book (mcp); inputs: answer\_with, book, chip\_in, closes\_on, lead\_with, questions, steps; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 5: chase\_the\_missing (mcp); inputs: also\_email, book; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}
- Tool 6: close\_collecting (mcp); inputs: book; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}
- Tool 7: find\_my\_book (mcp); inputs: code, email; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}
- Tool 8: get\_links (mcp); inputs: book; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 9: get\_style (mcp); inputs: book, person; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 10: order (mcp); inputs: book, option; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":true}
- Tool 11: order\_status (mcp); inputs: book; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 12: preview\_pages (mcp); inputs: book, pages, person; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 13: read\_the\_messages (mcp); inputs: book; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 14: reopen\_collecting (mcp); inputs: book, closes\_on; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}
- Tool 15: send\_feedback (mcp); inputs: book, kind, tool, trying\_to, what\_happened; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}
- Tool 16: send\_it\_out (mcp); inputs: also\_email, book; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}
- Tool 17: set\_style (mcp); inputs: book, changes, reset; inputs omitted: 0; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
- Tool 18: start\_book (mcp); inputs: answer\_with, closes\_on, code, expecting, lead\_with, occasion, organiser\_email, questions; inputs omitted: 3; annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":false,"openWorldHint":false}
- Tool 19: their\_own\_link (mcp); inputs: book; inputs omitted: 0; annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}
Tools omitted: 0.

## Effect readings (AI)
- Tool 1 (add\_people): ◇ AI reading; state: counted; creates (confidence 0.85); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 2 (arrange\_the\_book): ◇ AI reading; state: counted; updates (confidence 0.85); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 3 (book\_status): ◇ AI reading; state: counted; reads (confidence 0.89); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 4 (change\_the\_book): ◇ AI reading; state: counted; updates (confidence 0.9); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 5 (chase\_the\_missing): ◇ AI reading; state: counted; sends_messages (confidence 0.84); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 9 (get\_style): ◇ AI reading; state: counted; reads (confidence 0.9); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 11 (order\_status): ◇ AI reading; state: counted; reads (confidence 0.85); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 13 (read\_the\_messages): ◇ AI reading; state: counted; reads (confidence 0.9); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 14 (reopen\_collecting): ◇ AI reading; state: counted; updates (confidence 0.84); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 16 (send\_it\_out): ◇ AI reading; state: counted; sends_messages (confidence 0.84); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 17 (set\_style): ◇ AI reading; state: counted; updates (confidence 0.82); lens: side-effects@1; model: claude-haiku-5.5.
- Tool 18 (start\_book): ◇ AI reading; state: counted; creates (confidence 0.81); lens: side-effects@1; model: claude-haiku-5.5.

## Change history
No changes recorded in the retained history.

## Payment rails
- Protocols observed: none.
- HTTP 402 seen in retained observations: false.

## Not covered
- We don't call tools.
- We don't rate or certify.
- We don't publish prices.
- We cover only what was observed.

## Evidence
- Identity: observed / declared; observation time: 2026-11-14T05:01:27.540Z.
- Tools: declared; observation time: 2026-11-14T05:01:27.540Z.
- Effect readings (AI): AI reading; observation time: 2026-11-14T05:01:27.540Z.
- Change history: observed; observation time: 2026-11-14T05:01:27.540Z; change observation times: none.
- Payment rails: observed; observation time: 2026-11-14T05:01:27.540Z.

```json
{
  "schema": "interfacedelta-service-md/1",
  "target_key": "sha256:58bdebe13a0560375e9839580048ea7035c8439a7afb367d6e47e21e1a870f8b",
  "origin": "https://choruskeepsake.com",
  "protocols": [
    "mcp"
  ],
  "observed_at": "2026-11-14T05:01:27.540Z",
  "generated_at": "2026-11-14T10:16:56.708Z",
  "record_url": "https://interfacedelta.com/atlas/sha256:58bdebe13a0560375e9839580048ea7035c8439a7afb367d6e47e21e1a870f8b",
  "record_api": "https://interfacedelta.com/api/v1/record/services/sha256:58bdebe13a0560375e9839580048ea7035c8439a7afb367d6e47e21e1a870f8b",
  "source": "InterfaceDelta atlas",
  "license_note": "Use of this record is governed by https://interfacedelta.com/terms.",
  "identity": {
    "origin": "https://choruskeepsake.com",
    "endpoints": [
      "https://choruskeepsake.com/mcp"
    ],
    "protocols": [
      "mcp"
    ],
    "registry_names": [
      "com.choruskeepsake/chorus"
    ],
    "first_retained_observation": "2026-11-14T05:01:27.540Z",
    "latest_observation": "2026-11-14T05:01:27.540Z"
  },
  "tools": [
    {
      "name": "add_people",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "people"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "creates",
            "confidence": 0.85
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "arrange_the_book",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "cover",
        "leave_out",
        "order",
        "put_back",
        "title"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "updates",
            "confidence": 0.85
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "book_status",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.89
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "change_the_book",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "answer_with",
        "book",
        "chip_in",
        "closes_on",
        "lead_with",
        "questions",
        "steps"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "updates",
            "confidence": 0.9
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "chase_the_missing",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "also_email",
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": false,
        "openWorldHint": true
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "sends_messages",
            "confidence": 0.84
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "close_collecting",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": false,
        "openWorldHint": false
      },
      "effects": null
    },
    {
      "name": "find_my_book",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "code",
        "email"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": false,
        "openWorldHint": true
      },
      "effects": null
    },
    {
      "name": "get_links",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": null
    },
    {
      "name": "get_style",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "person"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.9
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "order",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "option"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": false,
        "openWorldHint": true
      },
      "effects": null
    },
    {
      "name": "order_status",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.85
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "preview_pages",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "pages",
        "person"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": null
    },
    {
      "name": "read_the_messages",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "reads",
            "confidence": 0.9
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "reopen_collecting",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "closes_on"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": false,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "updates",
            "confidence": 0.84
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "send_feedback",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "kind",
        "tool",
        "trying_to",
        "what_happened"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": false,
        "openWorldHint": false
      },
      "effects": null
    },
    {
      "name": "send_it_out",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "also_email",
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": true
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "sends_messages",
            "confidence": 0.84
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "set_style",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book",
        "changes",
        "reset"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "updates",
            "confidence": 0.82
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "start_book",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "answer_with",
        "closes_on",
        "code",
        "expecting",
        "lead_with",
        "occasion",
        "organiser_email",
        "questions"
      ],
      "inputs_omitted": 3,
      "annotations": {
        "readOnlyHint": false,
        "destructiveHint": false,
        "idempotentHint": false,
        "openWorldHint": false
      },
      "effects": {
        "marker": "◇ AI reading",
        "state": "counted",
        "classes": [
          {
            "class": "creates",
            "confidence": 0.81
          }
        ],
        "lens": "side-effects@1",
        "model": "claude-haiku-5.5"
      }
    },
    {
      "name": "their_own_link",
      "kind": "mcp.tool",
      "protocol": "mcp",
      "inputs": [
        "book"
      ],
      "inputs_omitted": 0,
      "annotations": {
        "readOnlyHint": true,
        "destructiveHint": false,
        "idempotentHint": true,
        "openWorldHint": false
      },
      "effects": null
    }
  ],
  "capability_count": 19,
  "non_tool_capability_count": 0,
  "tool_count_scope": "MCP tools, OpenAPI operations, WebMCP tools and A2A skills; excludes prompts and resources.",
  "tools_omitted": 0,
  "tools_state": "recorded",
  "changes": [],
  "payment_rails": {
    "protocols": [],
    "http_402_seen": false
  },
  "not_covered": [
    "We don't call tools.",
    "We don't rate or certify.",
    "We don't publish prices.",
    "We cover only what was observed."
  ],
  "evidence": [
    {
      "section": "Identity",
      "classes": [
        "observed",
        "declared"
      ],
      "observed_at": "2026-11-14T05:01:27.540Z"
    },
    {
      "section": "Tools",
      "classes": [
        "declared"
      ],
      "observed_at": "2026-11-14T05:01:27.540Z"
    },
    {
      "section": "Effect readings (AI)",
      "classes": [
        "AI reading"
      ],
      "observed_at": "2026-11-14T05:01:27.540Z"
    },
    {
      "section": "Change history",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-14T05:01:27.540Z",
      "observation_times": []
    },
    {
      "section": "Payment rails",
      "classes": [
        "observed"
      ],
      "observed_at": "2026-11-14T05:01:27.540Z"
    }
  ]
}
```