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bitwarden-agent-vault-mcp

bitwarden-agent-vault-mcp

by ceweldy
OverviewSchemaSourceRelated ServersDiscussionsAdmin
JavaScript
Local

Open Bitwarden Secrets Manager

open_bitwarden
Read-only

Opens the Bitwarden Secrets Manager web vault in a browser, optionally filtered to a specific project using its UUID for targeted access.

Instructions

Open the Bitwarden Secrets Manager web vault, narrowed to a project when a project UUID is supplied.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "open_bitwarden"
  }
}

Input Schema

NameRequiredDescriptionDefault
project_idNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.2.0

TDQS

A4/5.0
Behavior4/5

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

Annotations already indicate readOnlyHint=true (safe, no mutations) and openWorldHint=true (navigates externally). The description adds that the vault can be narrowed to a specific project, which is a useful behavioral nuance beyond what annotations provide.

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?

A single, direct sentence that is front-loaded with the action and resource, with no extraneous information. Every word earns its place.

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

Completeness4/5

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

For a simple tool with one optional parameter and strong annotations, the description covers the key purpose and parameter effect. It could be improved by clarifying what 'open' means (e.g., returns a URL) but is largely complete.

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 0%, but the description mentions 'project UUID' for project_id, adding meaning. However, it does not specify the format or source of the UUID, leaving some ambiguity.

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 specific action ('Open the Bitwarden Secrets Manager web vault') and the optional narrowing by project UUID. It effectively distinguishes from sibling tools like get_secret and list_projects which perform different operations.

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?

The description implies when to use (to access the vault UI) but does not explicitly mention when to avoid or provide alternatives. No exclusion criteria or context about prerequisites (e.g., needing a project UUID from list_projects).

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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