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Investec OpenAPI MCP Server

Investec OpenAPI MCP Server

by jonelgithub
OverviewSchemaSourceRelated ServersDiscussionsAdmin
TypeScript
Remote

investec_card_update_code

Uploads a JavaScript code snippet to update the programmable behavior of an Investec card identified by its unique card key.

Instructions

Upload a draft JavaScript code block for a programmable card.

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": {
      "cardKey": "<cardKey>",
      "code": "<code>"
    },
    "name": "investec_card_update_code"
  }
}

Input Schema

NameRequiredDescriptionDefault
codeYesThe JavaScript code snippet to upload
cardKeyYesThe unique key identifying the card

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.2/5.0
Behavior2/5

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

No annotations are provided, so the description bears full responsibility. It only states 'upload a draft' but does not disclose behavioral traits: whether it overwrites, if it validates code, what happens on success, or any permissions needed. This is insufficient transparency.

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, clear sentence that is front-loaded with the main action. No unnecessary words, making it highly concise and easy to parse.

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?

Despite low complexity (2 params, no output schema), the description omits critical context: what 'draft' means in the lifecycle, what the tool returns, and how it relates to sibling tools. The agent lacks information to use it correctly without external knowledge.

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 description coverage is 100%, so baseline is 3. The tool description adds the word 'draft' but does not provide additional meaning beyond what the schema already describes for both parameters.

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 verb 'Upload' and resource 'draft JavaScript code block for a programmable card'. The word 'draft' distinguishes this from sibling tools like investec_card_publish_code, making the purpose specific and actionable.

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 (e.g., publish_code, execute_code). There is no mention of prerequisites or context such as requiring a card to exist or code validation.

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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