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airflow-mcp-server

by us-all

airflow-trigger-dag

Trigger an Airflow DAG run with optional configuration, note, and logical date. Provide the DAG ID to initiate a new run.

Instructions

Trigger a new Airflow DAG run with optional conf payload and note. Write-gated by AIRFLOW_ALLOW_WRITE.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
dagIdYes
dagRunIdNoOptional run id; auto-generated if omitted
confNoDAG run conf payload
noteNoOptional note attached to the run
logicalDateNoOptional logical_date (ISO 8601) — Airflow 3.x replacement for execution_date
Behavior3/5

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

No annotations provided; the description covers the basic write nature and gate but omits side effects (e.g., asynchronous execution) and return behavior.

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?

Single sentence and a fragment; no filler, every word adds value.

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?

Adequate for a simple trigger with high schema coverage, but lacks details about auto-generated run IDs, logicalDate usage, and potential side effects.

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 covers 80% of parameters; the description adds the write-gate context and confirms optionality of conf and note, exceeding the baseline.

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 tool triggers a new Airflow DAG run, which is distinct from sibling tools that clear tasks or list runs.

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

Usage Guidelines3/5

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

It mentions the write-gate prerequisite (AIRFLOW_ALLOW_WRITE) but does not compare to alternatives or specify when not to use.

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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