Vibes-Coded Agent Tools

vc_notepad_read

Read-onlyIdempotent

Read durable memory (notepad-read, 2c). Restore state saved in a previous session.

Sibling: vc_notepad_save, vc_notepad_list.

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": {
      "owner_key": "<owner_key>",
      "note_key": "<note_key>"
    },
    "name": "vc_notepad_read"
  }
}

Input Schema

Name	Required	Description
`note_key`	Yes	Note key to read.
`owner_key`	Yes	Your stable agent identity.
`payment_signature`	No	Optional x402 PAYMENT-SIGNATURE if not using X-Vibes-Key.

Output Schema

Name	Required	Description	Default
`result`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedSep 1, 2026

TDQS

A3.9/5.0

Behavior3/5

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

Annotations already declare readOnly, idempotent, openWorld, and non-destructive behavior. The description adds durable-memory context and the state-restoration intent, but does not disclose additional behavioral details such as missing-key handling or persistence semantics.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is short and front-loaded, with the core action in the first sentence. The '2c' fragment is cryptic but not harmful; overall the description wastes no words.

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 read-only, idempotent tool with a full input schema and an output schema, the description covers the essential purpose and use case. It names siblings for navigation, though it could add a bit more on when reading is preferable to listing.

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 note_key, owner_key, and payment_signature are already explained in the schema. The description adds no extra parameter-level meaning; baseline 3 applies.

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 opens with a specific verb and resource ('Read durable memory') and adds a concrete use case ('Restore state saved in a previous session'). It also names the sibling tools, which helps an agent distinguish it from vc_notepad_save and vc_notepad_list.

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

Usage Guidelines4/5

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

The 'Restore state saved in a previous session' phrase gives clear context for when this tool is appropriate. Sibling tools are listed, though the description does not explicitly state when to prefer one over the other.

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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