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Coalesce-Software-Inc

coalesce-transform-mcp

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Pipeline Workshop Open

pipeline_workshop_open

Open a pipeline workshop session for iterative, conversational building. Maintain state to incrementally add nodes and refine plans.

Instructions

Open a new pipeline workshop session for iterative, conversational pipeline building. The workshop maintains state between calls so you can incrementally add nodes, change join keys, add filters, rename nodes, and refine the plan before creating anything.

Optionally provide an initial intent (e.g., 'join customers and orders on customer_id') to bootstrap the session with initial nodes.

Returns a sessionID that must be passed to subsequent workshop calls.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
intentNoOptional initial intent to bootstrap the session (e.g., 'join CUSTOMERS and ORDERS on CUSTOMER_ID')
workspaceIDYesThe workspace ID to build the pipeline in

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
errorNo
nodesNo
historyNo
warningsNo
createdAtNo
sessionIDNo
updatedAtNo
workspaceIDNo
openQuestionsNo
resolvedEntitiesNo
Behavior3/5

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

Discloses stateful behavior and return of sessionID. However, with openWorldHint=true, description does not elaborate on potential side effects or permissions needed, missing behavioral context beyond annotations.

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?

Three sentences, each serving a distinct purpose: purpose, operational behavior, and optional input. Front-loaded and free of extraneous detail.

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 full schema coverage, output schema present, and annotations, the description is sufficient. It clearly explains the tool's role, stateful nature, and required follow-up, leaving no major gaps.

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 baseline is 3. Description rephrases schema descriptions for both parameters without adding significant new meaning.

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?

Clearly states verb 'Open' and resource 'pipeline workshop session' with specific purpose 'iterative, conversational pipeline building'. Distinguishes from sibling tools like pipeline_workshop_instruct and pipeline_workshop_close.

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

Usage Guidelines4/5

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

Explains that state is maintained between calls and that sessionID must be passed to subsequent workshop calls. Implicitly indicates when to use (start of session) vs siblings, but lacks explicit exclusions.

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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