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add_column

Append a single column to a workspace's table schema. Position is auto-computed as next-after-max so the contiguity invariant holds. Key collision (409) if a column with the same key already exists. Editor role required. Use this for per-column additions; use get_workspace_schema + update_workspace_columns (PUT on /columns) for full schema replacement or reordering. Multi-surface workspaces accept surface_slug to target a specific table sheet (use list_surfaces to enumerate); omit to fall through to the workspace's primary table surface.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
keyYesField name in row.data. Lowercase + underscores recommended; 1-64 chars.
slugYesThe workspace slug. Accepts either the bare slug ('my-workspace') or the org-prefixed form ('my-org/my-workspace') as shown in the dashboard URL; both resolve to the same workspace.
typeYesColumn type. See get_workspace_schema for examples.
labelYesHuman-readable header shown in the sheet.
widthNoOptional. Initial column width in px.
optionsNoRequired for `status` + `select` types. The allowed values shown in the dropdown.
descriptionNoOptional. Human-readable tooltip shown in the column header.
surface_slugNoOptional. The slug of the specific table surface to add the column to. Omit on single-table workspaces; required on multi-table workspaces if you don't want the primary table surface (lowest position).

TDQS

A4.9/5.0
Behavior5/5

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

With no annotations, the description carries the full burden and does so thoroughly. It discloses the auto-computed position, the 409 key collision error, the editor role requirement, and the surface fall-through behavior. These go well beyond the basic mutation and give the agent critical operational context.

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?

Every sentence earns its place: purpose, positional invariant, collision error, permission, alternative usage, and surface behavior are each addressed without redundancy. The description is front-loaded with the primary purpose and remains tight despite the complexity.

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?

Given 8 parameters, no annotations, and no output schema, the description is remarkably complete. It covers purpose, error handling, permissions, alternatives, and an edge case (multi-surface workspaces). The only minor omission is the return format, but that is not essential for tool selection.

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, but the description adds meaningful semantics beyond the schema. It explains that surface_slug targets a specific table sheet and falls through to the primary surface when omitted, and that position is auto-computed. This enriches parameters not fully captured in the schema.

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 description states 'Append a single column to a workspace's table schema' with a specific verb and resource. It distinguishes this per-column addition from full schema replacement or reordering, making its purpose clear relative to sibling 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?

Explicit guidance is given: 'Use this for per-column additions; use get_workspace_schema + update_workspace_columns (PUT on /columns) for full schema replacement or reordering.' It also mentions the editor role requirement and surface_slug targeting for multi-surface workspaces, covering when and when not to use the tool.

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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TDQS

A3.8/5.0
Disambiguation4/5

Most tools have clearly distinct purposes, with detailed descriptions that prevent confusion. The main ambiguity arises from send_message vs. the referenced but missing message_teammate tool, and add_column vs. update_surface for schema changes, but these are mostly clarified by the descriptions.

Naming Consistency4/5

The naming convention is predominantly verb_noun with underscores (e.g., create_workspace, list_rows, update_doc). Exceptions like 'search' and 'address_book' (no noun) and the two-word 'react_to_comment' are minor deviations in an otherwise consistent pattern.

Tool Count1/5

With 68 tools, the surface is far too large for an MCP server, exceeding the 50+ threshold for extreme mismatch. This volume creates excessive selection overhead for agents and suggests the tool set could be consolidated or split into focused servers.

Completeness3/5

The server covers broad functionality across workspaces, docs, tables, HTML, comments, files, webhooks, and billing. However, notable gaps exist: the explicitly referenced message_teammate tool is missing (preventing agent-to-agent waking), and there is no create/upload file tool or create API key tool, which creates dead ends in workflows.