Retrieve the configured anonymous access key for secure, read-only database operations in self-hosted Supabase environments.
Returns the configured Supabase anon key for this server.
| Name | Required | Description | Default |
|---|---|---|---|
No arguments | |||
Changes observed during successful MCP inspections.
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description must disclose behavior. It only says 'Returns', implying a read-only operation, but lacks details on potential side effects, authentication requirements, or error conditions. Minimal behavioral context.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Single sentence that is concise and front-loaded with the action and result. No wasted words, effectively communicates the tool's function.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a simple getter with no parameters and no output schema, the description is largely sufficient. However, it could mention the key's typical use (e.g., for public client access) or the need for a connected instance to fully cover the context.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
No parameters exist, so schema coverage is 100%. Baseline for zero-parameter tools is 4; the description adds no parameter-specific meaning but does not need to.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Description clearly states the tool returns the configured Supabase anon key. The verb 'Returns' and resource 'Supabase anon key' are specific and unambiguous, distinguishing it from sibling tools like get_service_key through the explicit mention of 'anon key'.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
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 (e.g., get_service_key for service role key). The description does not specify context or prerequisites, such as needing a connected Supabase instance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.