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circleci_list_pipelines

Retrieve CircleCI pipelines for a project or organization. Filter results by branch to focus on specific pipeline runs.

Instructions

List CircleCI pipelines for a project or organization. Optionally filter by branch.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
api_keyYesCircleCI personal API token
project_slugNoProject slug e.g. gh/MyOrg/my-repo. Omit to list all org pipelines.
branchNoFilter by branch name
org_slugNoOrg slug when listing all pipelines (e.g. gh/MyOrg)
page_tokenNoPagination token
Behavior2/5

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

No annotations provided. The description does not disclose pagination, rate limits, or that the operation is read-only. It only states the basic function, leaving behavioral traits unspecified.

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?

Very concise single sentence, but front-loaded and to the point. No wasted words, though could be slightly more structured.

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

Completeness3/5

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

With 5 parameters and no output schema or annotations, the description is adequate but lacks context on pagination, return format, or authentication requirements. It covers the basics.

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 coverage is 100% with detailed parameter descriptions. The description adds minimal extra meaning beyond restating the branch filter, so baseline of 3 is appropriate.

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 the action ('list') and resource ('CircleCI pipelines'), and distinguishes from sibling tools by mentioning optional branch filtering. It tells exactly what the tool does.

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?

No guidance on when to use this tool versus alternatives like circleci_get_pipeline or circleci_list_workflows. It does not specify prerequisites or 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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