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List connector mappings

well_list_connector_mappings
Read-only

List how one connected tool's data maps into Well: one row per Well record type (target_model, such as transactions or invoices) and provider tool (tool_name), with the JSONata expression that turns that tool's response into that record type and whether the mapping waits to be drawn again (needs_regeneration). A record type that several provider tools feed returns one row per tool.

Use it to answer "how does my Pennylane connection map its invoices?" or "why are this tool's invoices missing a field?". Pass the workspace_connector_id from well_list_connectors. Only a connection mapped by a drawn expression has mappings: an empty list means the connection is not mapped this way, never that it brings no data in. It reads the mappings and changes nothing: it starts no sync and draws no mapping. truncated says the list was cut at its bound.

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

TableJSON Schema
NameRequiredDescriptionDefault
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.
workspace_connector_idYesThe workspace_connector_id of the connected tool, from well_list_connectors.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
errorNo
successYes
mappingsNo
truncatedNo
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. Added

TDQS

A4.4/5.0
Behavior4/5

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

Annotations already declare readOnlyHint/destructiveHint=false, and the description adds real behavioral context beyond them: an empty list means 'not mapped this way', never 'brings no data in'; `truncated` signals a bound was hit; the call starts no sync and draws no mapping. It does not detail auth scopes or row ordering, keeping it short of a 5.

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?

Three tight paragraphs, front-loaded with row semantics before usage examples and routing rules. Slightly long for the payload, but nearly every sentence carries distinct information (row shape, empty-list caveat, truncation, workspace routing).

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 present, the description need not explain return values, yet it still clarifies the meaning of the empty and truncated cases. Combined with the multi-workspace routing rule and parameter prerequisites, an agent has everything needed to select and invoke the tool correctly.

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 description coverage is 100%, so the schema already documents all four parameters including conversation_id and workspace_scope. The description restates the workspace_id routing rule and the origin of workspace_connector_id, both of which the schema also covers, adding no new syntax or format detail.

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 ('List how one connected tool's data maps into Well') and precisely defines the row grain: one row per (target_model, tool_name) pair, with the JSONata expression and needs_regeneration flag. This clearly separates it from sibling reads like well_list_connectors and well_list_connector_tools.

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 trigger questions ('how does my Pennylane connection map its invoices?'), names the prerequisite source for the key parameter (workspace_connector_id from well_list_connectors), and spells out the workspace routing rule: call directly when the token covers one workspace, pass workspace_id when it covers 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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