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Revit Model MCP

Links Status

revit_links_status
Read-onlyIdempotent

Check RVT, CAD, and image link status in live Revit models, with summary counts and skipped entries to show when results are incomplete.

Instructions

Read RVT, CAD and image link status. Each list is capped at 100 entries; summary counts cover all links. A non-empty skipped list means the result is incomplete; skippedCount counts all skipped entries.

Input Schema

NameRequiredDescriptionDefault
documentNoTitle or file name substring of the target document; needed when several Revit instances run.
process_idNoRevit process ID; takes precedence over document.
timeout_secondsNoSeconds to wait for a result (default 120).
pickup_timeout_secondsNoSeconds to wait for the add-in to pick up the job (default 300); unused over HTTP.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed10 schema fields changedv0.10.0
    • changedInput schema / properties / document / description
      Previous value: -"Case-insensitive substring of the target active document title or file name. Reads require exactly one matching instance; omitted document requires exactly one running instance. Zero or multiple matches fail before publishing. revit_list_instances returns all matching instances, or all running instances when omitted."New value: +"Title or file name substring of the target document; needed when several Revit instances run."
    • removedInput schema / properties / document / title
      Removed value: -"Document"
    • changedInput schema / properties / pickup_timeout_seconds / description
      Previous value: -"Positive integer seconds to wait for the add-in to pick up a local or SSH job (300 when omitted); ignored over HTTP. A pickup timeout raises an error but the pending job may still execute later."New value: +"Seconds to wait for the add-in to pick up the job (default 300); unused over HTTP."
    • removedInput schema / properties / pickup_timeout_seconds / title
      Removed value: -"Pickup Timeout Seconds"
    • changedInput schema / properties / process_id / description
      Previous value: -"Exact positive Revit process ID. Takes precedence over document; if both are supplied they must agree."New value: +"Revit process ID; takes precedence over document."
    • removedInput schema / properties / process_id / title
      Removed value: -"Process Id"
    • changedInput schema / properties / timeout_seconds / description
      Previous value: -"Positive integer seconds to wait for a result after pickup (120 when omitted); HTTP uses this as its response budget. Expiry raises an error, and increasing it does not override the add-in's execution limits."New value: +"Seconds to wait for a result (default 120)."
    • removedInput schema / properties / timeout_seconds / title
      Removed value: -"Timeout Seconds"
    • removedInput schema / title
      Removed value: -"revit_links_statusArguments"
    • removedOutput schema / title
      Removed value: -"revit_links_statusDictOutput"
  2. Changed2 schema fields changedv0.7.0
    • changedInput schema / properties / document / description
      Previous value: -"Case-insensitive substring of the target active document title or file name; default null leaves requests unaddressed, so any instance may respond. Use a unique substring with multiple instances; revit_list_instances instead returns all matching instances, or all instances when omitted."New value: +"Case-insensitive substring of the target active document title or file name. Reads require exactly one matching instance; omitted document requires exactly one running instance. Zero or multiple matches fail before publishing. revit_list_instances returns all matching instances, or all running instances when omitted."
    • addedInput schema / properties / process_id
      Added value: +{
      +  "anyOf": [
      +    {
      +      "type": "integer"
      +    },
      +    {
      +      "type": "null"
      +    }
      +  ],
      +  "default": null,
      +  "description": "Exact positive Revit process ID. Takes precedence over document; if both are supplied they must agree.",
      +  "title": "Process Id"
      +}
  3. Changed3 schema fields changedv0.1.1
    • addedInput schema / properties / document / description
      Added value: +"Case-insensitive substring of the target active document title or file name; default null leaves requests unaddressed, so any instance may respond. Use a unique substring with multiple instances; revit_list_instances instead returns all matching instances, or all instances when omitted."
    • addedInput schema / properties / pickup_timeout_seconds / description
      Added value: +"Positive integer seconds to wait for the add-in to pick up a local or SSH job (300 when omitted); ignored over HTTP. A pickup timeout raises an error but the pending job may still execute later."
    • addedInput schema / properties / timeout_seconds / description
      Added value: +"Positive integer seconds to wait for a result after pickup (120 when omitted); HTTP uses this as its response budget. Expiry raises an error, and increasing it does not override the add-in's execution limits."
  4. First observed

TDQS

A3.6/5.0
Behavior4/5

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

Annotations already declare readOnly/idempotent/non-destructive, so safety is covered. The description adds genuinely useful behavioral context the annotations cannot: per-list cap of 100 entries, summary counts spanning all links, and that a non-empty skipped list signals an incomplete result with skippedCount totalling all skipped entries.

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 short sentences with zero filler, front-loading the core action before the truncation semantics. Every sentence carries information the agent needs.

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

Completeness4/5

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

With an output schema present and annotations covering the safety profile, the description only needs to add the truncation/incompleteness semantics, which it does. It is close to complete, though it could note the targeting requirement when multiple Revit instances run.

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 document, process_id, and both timeout parameters are fully documented in the schema. The description adds no parameter-level meaning, making the baseline 3 appropriate.

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

Purpose4/5

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

States a specific verb and resource ('Read RVT, CAD and image link status'), which clearly separates it from write-oriented siblings such as revit_remove_links, revit_link_cad, and revit_compare_link_datums. It is precise but does not explicitly name or contrast any sibling.

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

Usage Guidelines2/5

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

There is no statement of when to use this tool versus alternatives (e.g., revit_compare_link_datums or revit_document_info), nor any prerequisites or exclusions. Usage must be inferred entirely from the purpose sentence.

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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