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Get investment holdings

well_get_investment_holdings
Read-only

Get the live holdings/positions (what's currently held and its value) for a connected Plaid investment account — brokerage, IRA, 401k, etc.

WORKFLOW:

  1. well_list_connectors() → pick the ENABLED Plaid connector (connection_status: "enabled") and read its workspace_connector_id directly off the row.

  2. well_get_investment_holdings({ workspace_connector_id }) → the current holdings, fetched fresh from Plaid on every call (never stored/stale data).

Only works on Plaid connectors that support the investments product — not the MCP-transport connector-tool-passthrough tools (well_list_connector_tools / well_invoke_connector_tool), and not for investment transactions (buy/sell/dividend/fee), which are queryable as ordinary rows via well_query_records on the transactions root instead.

Input Schema

NameRequiredDescriptionDefault
workspace_idNoTarget workspace. This read reports one workspace's own data. Omit it and the token's primary workspace answers, which may not be the one you mean; the result names the workspace that did.
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.
workspace_connector_idYesThe connected Plaid provider's workspace_connector_id (from well_list_connectors).

Output Schema

NameRequiredDescriptionDefault
errorNo
successYes
holdingsNo
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.
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. Changed12 schema fields changed
    • removedOutput schema / properties / holdings / items / properties / cost_basis / anyOf
      Removed value: -[
      -  {
      -    "type": "number"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / holdings / items / properties / cost_basis / type
      Added value: +[
      +  "number",
      +  "null"
      +]
    • removedOutput schema / properties / holdings / items / properties / currency / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / holdings / items / properties / currency / type
      Added value: +[
      +  "string",
      +  "null"
      +]
    • removedOutput schema / properties / holdings / items / properties / security / properties / name / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / holdings / items / properties / security / properties / name / type
      Added value: +[
      +  "string",
      +  "null"
      +]
    • removedOutput schema / properties / holdings / items / properties / security / properties / ticker_symbol / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / holdings / items / properties / security / properties / ticker_symbol / type
      Added value: +[
      +  "string",
      +  "null"
      +]
    • removedOutput schema / properties / holdings / items / properties / security / properties / type / anyOf
      Removed value: -[
      -  {
      -    "type": "string"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]
    • addedOutput schema / properties / holdings / items / properties / security / properties / type / type
      Added value: +[
      +  "string",
      +  "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
    • 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."
  3. 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"
      +}
  4. 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"
      +}
  5. 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"
      +}
  6. Changed2 schema fields changed
    • changedInput schema / properties / workspace_id / description
      Previous value: -"Target workspace. Omit to use the only authorized workspace, or (for read tools) to query all authorized workspaces grouped by workspace. Required for write tools when the token authorizes more than one workspace."New value: +"Target workspace. This read reports one workspace's own data. Omit it and the token's primary workspace answers, which may not be the one you mean; the result names the workspace that did."
    • addedOutput schema / properties / resolved_workspace
      Added value: +{
      +  "additionalProperties": false,
      +  "description": "The workspace that answered, when the caller named none and the token authorizes several.",
      +  "properties": {
      +    "name": {
      +      "anyOf": [
      +        {
      +          "type": "string"
      +        },
      +        {
      +          "type": "null"
      +        }
      +      ]
      +    },
      +    "workspace_id": {
      +      "type": "string"
      +    }
      +  },
      +  "required": [
      +    "workspace_id",
      +    "name"
      +  ],
      +  "type": "object"
      +}
  7. Changed1 schema field changed
    • changedInput schema / properties / workspace_connector_id / description
      Previous value: -"The connected Plaid provider's workspace_connector_id (from well_query_records on workspace_connectors)."New value: +"The connected Plaid provider's workspace_connector_id (from well_list_connectors)."
  8. Added

TDQS

A4.5/5.0
Behavior4/5

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

Annotations already cover read-only and non-destructive. The description adds real value beyond them: data is 'fetched fresh from Plaid on every call (never stored/stale data)', and it only works on Plaid connectors that support the investments product. Missing are failure modes (e.g. connector lacking the investments product) or rate/refresh limits, so it falls short of the top mark.

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

Conciseness5/5

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

Front-loaded one-sentence purpose, then a compact WORKFLOW block, then a single exclusion sentence. Every line carries operational information with no filler.

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?

With an output schema, full parameter descriptions, and read-only annotations, the description only needs to cover discovery of the connector id and the scope limits — both are present. Nothing an agent needs to call this correctly is missing.

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

Parameters3/5

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

Schema coverage is 100% and each parameter is fully documented, so the schema does the heavy lifting. The description only reinforces where workspace_connector_id comes from (well_list_connectors) and does not explain the workspace_id / conversation_id / workspace_scope interaction — baseline 3.

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?

States a specific verb and resource ('get the live holdings/positions ... for a connected Plaid investment account') and even clarifies what the value represents. It explicitly distinguishes itself from the connector-tool-passthrough tools and from investment transactions, which is exactly the differentiation an agent needs among so many siblings.

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?

Provides a numbered workflow (list connectors → read enabled Plaid connector → call with workspace_connector_id) and names the alternative route for investment transactions (well_query_records on the transactions root). It also states exclusions: not MCP-transport passthrough tools, not transaction history.

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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