PocketBase MCP Server

pb_files_delete

Remove a specific file from a record field in PocketBase MCP Server by specifying the collection, record ID, field name, and filename. Simplify file management within your database.

Instructions

Delete a file from a record field

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "collection": "<collection>",
      "recordId": "<recordId>",
      "fieldName": "<fieldName>",
      "filename": "<filename>"
    },
    "name": "pb_files_delete"
  }
}

Input Schema

Name	Required	Description
`collection`	Yes	Collection name or ID
`fieldName`	Yes	Field name that contains the file
`filename`	Yes	File name to delete
`recordId`	Yes	Record ID that owns the file

Schema Changelog

Changes observed during successful MCP inspections.

First observedv1.0.0Jun 22, 2025

TDQS

C2.9/5.0

Behavior2/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It states the action is 'Delete,' which implies a destructive mutation, but doesn't specify if this is permanent, reversible, requires specific permissions, or has side effects (e.g., on related records). This is a significant gap for a mutation tool with zero annotation coverage.

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 a single, efficient sentence that directly states the tool's purpose without unnecessary words. It's front-loaded and wastes no space, making it easy to parse quickly.

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

Completeness2/5

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

Given the tool's complexity (a destructive mutation with 4 parameters), lack of annotations, and no output schema, the description is incomplete. It doesn't cover behavioral aspects like safety, permissions, or return values, which are critical for an AI agent to use this tool correctly in context.

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?

The schema description coverage is 100%, with all parameters clearly documented in the input schema (collection, fieldName, filename, recordId). The description doesn't add any additional meaning or context beyond what the schema provides, such as examples or constraints, so it meets the baseline for high schema coverage without compensating further.

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?

The description clearly states the action ('Delete') and target ('a file from a record field'), which is specific and unambiguous. However, it doesn't differentiate from sibling tools like pb_records_delete or pb_collections_delete, which handle different resource types, so it doesn't fully distinguish itself from all alternatives.

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 is provided on when to use this tool versus alternatives. For example, it doesn't mention if this is for deleting individual files versus bulk operations or how it relates to pb_files_list_record_files for identifying files. The description lacks context about prerequisites or when-not-to-use scenarios.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.