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Get customer e-invoicing details

well_get_customer_einvoicing_details
Read-only

Get one CUSTOMER's e-invoicing identity — the registry values an invoice to that customer is routed on, or that a period aggregate for it is reported under.

Use this when the question is about the party the workspace BILLS: "can we invoice this customer electronically", "what is their SIREN / VAT number / billing address", "what do we still need before we can route this invoice". Read well_get_own_company instead when the question is about which company the workspace ITSELF is.

Returns customer_kind ("company" routes an invoice, "individual" reports a sale, absent when the customer's type is not stated), customer (the composite: company_id, name, subline, identified), fields (one entry per detail the graph can hold, each with its value and provenance when one is held), unstorable_fields (details this flow needs that no column holds yet), hints and connectors_url.

A field listed in unstorable_fields is not a gap the user can close — say plainly that Well cannot store it yet, and never ask for it. A fields entry with no value IS answerable and is what still blocks the route.

When the token authorizes one workspace, call this directly — no workspace call is needed first. When it authorizes several, this read will not guess which one you mean: pass workspace_id on the call.

Input Schema

NameRequiredDescriptionDefault
company_idYesThe customer's public company UUID (the `company_id` field on a companies record).
workspace_idNoTarget workspace. Omit when the token authorizes one workspace. Required when it authorizes several: this read reports one workspace's own figures and will not choose which.
conversation_idNoThe conversation id returned by the previous Well result, in its meta under well/conversation_id, in its structuredContent, or in its JSON text block. Pass it back on every call in the same conversation, including a call a card makes, so the chosen workspace and the earlier answers still apply. It decides the conversation on its own: nothing the host states about the session replaces it. Omit it only on the first call of a conversation.
workspace_scopeNoRestrict this call to the family: the token's primary workspace plus the company workspaces under it that you are a member of. Unrelated authorized workspaces drop out of the read; row reads merge across the family, while a per-workspace figure still reports exactly one workspace.

Output Schema

NameRequiredDescriptionDefault
errorNo
hintsNo
fieldsYes
successYes
customerYes
needs_pickNo
error_reasonNo
customer_kindNo
connectors_urlNo
conversation_idNoThe conversation this result belongs to. Pass it back as the conversation_id argument on every later Well call in the same conversation.
newly_connectedNoTools that connected to this workspace since the last result and that no session was told about yet, oldest first. Present only when at least one tool is new. The connected-line rule says when to tell an entry; when it does, one line per entry, in the person's language: "<name> is connected.". Never fold several entries into one sentence. Each entry comes back once, on one result only: never repeat its line later.
unstorable_fieldsYes
resolved_workspaceNoThe workspace that answered, when the caller named none and the token authorizes several.
conversation_id_noteNoPresent only when the server opened a fresh lane, stating that no choice recorded earlier was read.
conversation_id_sourceNoWhere the conversation id came from: the host's own request meta, the caller's argument, or a fresh lane the server opened.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changed
    • removedOutput schema / properties / connectors_url / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / connectors_url / type
      Added value: +[
      +  "string",
      +  "null"
      +]
    • changedOutput schema / properties / customer / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "company_id": {
      -        "type": "string"
      -      },
      -      "identified": {
      -        "type": "boolean"
      -      },
      -      "name": {
      -        "anyOf": [
      -          {
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "subline": {
      -        "anyOf": [
      -          {
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      }
      -    },
      -    "required": [
      -      "company_id",
      -      "name",
      -      "subline",
      -      "identified"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "company_id": {
      +        "type": "string"
      +      },
      +      "identified": {
      +        "type": "boolean"
      +      },
      +      "name": {
      +        "type": [
      +          "string",
      +          "null"
      +        ]
      +      },
      +      "subline": {
      +        "type": [
      +          "string",
      +          "null"
      +        ]
      +      }
      +    },
      +    "required": [
      +      "company_id",
      +      "name",
      +      "subline",
      +      "identified"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • removedOutput schema / properties / resolved_workspace / properties / name / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / resolved_workspace / properties / name / type
      Added value: +[
      +  "string",
      +  "null"
      +]
  2. Changed1 schema field changed
    • addedOutput schema / properties / needs_pick
      Added value: +{
      +  "type": "boolean"
      +}
  3. Changed1 schema field changed
    • changedOutput schema / properties / newly_connected / description
      Previous value: -"Tools that connected to this workspace since the last result and that no session was told about yet, oldest first. Present only when at least one tool is new. Start the reply with one line per entry, in the person's language: \"<name> is connected.\". Never fold several entries into one sentence. Each entry comes back once, on one result only: never repeat its line later."New value: +"Tools that connected to this workspace since the last result and that no session was told about yet, oldest first. Present only when at least one tool is new. The connected-line rule says when to tell an entry; when it does, one line per entry, in the person's language: \"<name> is connected.\". Never fold several entries into one sentence. Each entry comes back once, on one result only: never repeat its line later."
  4. Changed1 schema field changed
    • addedInput schema / properties / workspace_scope
      Added value: +{
      +  "description": "Restrict this call to the family: the token's primary workspace plus the company workspaces under it that you are a member of. Unrelated authorized workspaces drop out of the read; row reads merge across the family, while a per-workspace figure still reports exactly one workspace.",
      +  "enum": [
      +    "family"
      +  ],
      +  "type": "string"
      +}
  5. Changed1 schema field changed
    • addedOutput schema / properties / newly_connected
      Added value: +{
      +  "description": "Tools that connected to this workspace since the last result and that no session was told about yet, oldest first. Present only when at least one tool is new. Start the reply with one line per entry, in the person's language: \"<name> is connected.\". Never fold several entries into one sentence. Each entry comes back once, on one result only: never repeat its line later.",
      +  "items": {
      +    "additionalProperties": false,
      +    "properties": {
      +      "name": {
      +        "type": "string"
      +      },
      +      "service_id": {
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "name",
      +      "service_id"
      +    ],
      +    "type": "object"
      +  },
      +  "type": "array"
      +}
  6. Changed2 schema fields changed
    • addedInput schema / properties / company_id / format
      Added value: +"uuid"
    • addedInput schema / properties / company_id / pattern
      Added value: +"^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
  7. Changed4 schema fields changed
    • addedInput schema / properties / conversation_id
      Added value: +{
      +  "description": "The conversation id returned by the previous Well result, in its meta under well/conversation_id, in its structuredContent, or in its JSON text block. Pass it back on every call in the same conversation, including a call a card makes, so the chosen workspace and the earlier answers still apply. It decides the conversation on its own: nothing the host states about the session replaces it. Omit it only on the first call of a conversation.",
      +  "type": "string"
      +}
    • addedOutput schema / properties / conversation_id
      Added value: +{
      +  "description": "The conversation this result belongs to. Pass it back as the conversation_id argument on every later Well call in the same conversation.",
      +  "type": "string"
      +}
    • addedOutput schema / properties / conversation_id_note
      Added value: +{
      +  "description": "Present only when the server opened a fresh lane, stating that no choice recorded earlier was read.",
      +  "type": "string"
      +}
    • addedOutput schema / properties / conversation_id_source
      Added value: +{
      +  "description": "Where the conversation id came from: the host's own request meta, the caller's argument, or a fresh lane the server opened.",
      +  "enum": [
      +    "host_meta",
      +    "argument",
      +    "minted"
      +  ],
      +  "type": "string"
      +}
  8. Added

TDQS

A4.8/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint/destructiveHint=false, but the description adds substantial context beyond them: the full return shape (customer_kind, customer, fields, unstorable_fields, hints, connectors_url), the semantics that an absent customer_kind means the type is unstated, and the non-obvious behavioral rule that a field in unstorable_fields must never be requested. That last point is operational guidance an agent could not infer from any structured field.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Purpose and the sibling exclusion are front-loaded, and the return-shape and unstorable_fields paragraphs each carry actionable information. The final paragraph on workspace_id largely repeats what the schema already says about omitting the parameter, so one sentence is redundant against structured data.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Even though an output schema exists, the description explains the meaning of the key returned concepts (customer_kind routing vs. reporting, fields with/without value, unstorable_fields) that a schema alone would not convey. Combined with the workspace and conversation-id guidance, an agent has everything needed to call this correctly on the first try.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the baseline is 3 and the schema already documents company_id, workspace_id, conversation_id and workspace_scope. The description adds a little real meaning by framing workspace_id as 'this read will not guess which one you mean', reinforcing the multi-workspace failure mode rather than merely restating the field. It does not add syntax or identity hints for company_id beyond the schema, so it stays below 5.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The opening sentence names the exact resource ('one CUSTOMER's e-invoicing identity') and its operational meaning ('the registry values an invoice to that customer is routed on'). It also explicitly distinguishes itself from the sibling well_get_own_company ('Read well_get_own_company instead when the question is about which company the workspace ITSELF is'), so an agent can pick between them without opening a schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives concrete user-question triggers ('can we invoice this customer electronically', 'what is their SIREN / VAT number') plus an explicit exclusion pointing to well_get_own_company. It also states the prerequisite behavior for workspace scoping: call directly when the token authorizes one workspace, pass workspace_id when it authorizes several.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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