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Create Bruno Collection

create_collection

Creates a Bruno API collection at a chosen path and registers it in the workspace so it appears in list_collections and the Bruno app.

Instructions

Create a new Bruno API testing collection with configuration. outputPath is the PARENT directory and name is appended to it: outputPath "/work/apis" with name "Billing" creates the collection at /work/apis/Billing. Do not put the collection name in outputPath as well. The new collection is also added to the workspace registry, because list_collections reads that registry and not the disk: a collection that is not listed there is invisible to it and to the Bruno app. The result says whether it was registered and, if not, why.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
nameYes
formatNoyaml
ignoreNo
baseUrlNo
outputPathYesAbsolute path of the PARENT directory to create the collection directory in. name is appended to it, so outputPath "/work/apis" with name "Billing" creates /work/apis/Billing. Passing "/work/apis/Billing" here would create /work/apis/Billing/Billing.
descriptionNo
workspacePathNoAbsolute path of the workspace.yml to register the new collection in. Defaults to the same one list_collections reads: BRUNO_WORKSPACE_PATH, or the Bruno app's workspace for this platform.
registerInWorkspaceNoSet false to create the collection without touching any workspace file. It will not appear in list_collections until something else registers it.
Install Server

TDQS

A4.7/5.0
Behavior5/5

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

With no annotations, the description carries the full burden. It discloses key side effects: the collection is added to the workspace registry, and list_collections reads that registry rather than the disk. It also explains the result indicates registration status and failure reasons. This is unusually transparent for a creation tool.

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?

The description is concise yet packed with necessary information. Every sentence earns its place: definition, path behavior, registry warning, and result explanation. It is well-structured and easy to parse.

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?

For a tool with side effects and a registry integration, the description covers all essential aspects: creation location, naming, registration behavior, and result content. It also explains the default workspace path. Without an output schema, the description still gives a sufficient picture of what to expect.

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 description coverage is only 38%, so the description must compensate. It does so by explaining outputPath's parent-directory semantics with a concrete example and clarifying how registerInWorkspace and workspacePath interact with the registry. Other parameters like format, ignore, baseUrl, and description remain simple, but the critical, error-prone ones are well covered.

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 clearly states it creates a new Bruno API testing collection, with a specific verb and resource. It distinguishes itself from sibling tools like delete_collection and list_collections by focusing on the creation side-effect and registry integration.

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?

The description gives clear context on usage, including the exact path semantics and the registry behavior that affects visibility. It does not explicitly mention alternatives like create_crud_requests, but it provides enough guidance on how to operate correctly, including a 'do not' warning about duplicating the collection name.

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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