Get a Stripe Checkout URL for the Close+ membership ($10/month: 5,000 API tokens granted monthly plus member features on the close.city map). The user pays in their own browser: give them the returned URL and stop. Needs a fresh six-digit code from request_sign_in, read by the user from their own inbox.
| Name | Required | Description | Default |
|---|---|---|---|
| code | Yes | The six-digit code from the email. | |
| Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
No annotations provided. Description discloses key behaviors: returns a Stripe Checkout URL, user pays in their own browser, requires a fresh code. Missing details on error handling or idempotency but acceptable for a simple tool.
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?
Concise yet comprehensive. Two sentences front-load the main action and include critical details (cost, benefits, workflow, prerequisite). No extraneous words.
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?
Given the tool's simplicity (2 params, no output schema, no annotations), the description covers the essential context: action, user interaction, prerequisite. Could mention error states but not necessary for basic functionality.
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?
Schema coverage is 50% because email lacks description. Description adds meaning: code is six-digit from email, email is user's. Partially compensates but does not fully describe email format or constraints.
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?
The description clearly states the verb 'Get' and resource 'Stripe Checkout URL for the Close+ membership', including specific benefits ($10/month, 5,000 API tokens) and distinguishes from siblings by referencing request_sign_in as a prerequisite.
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?
Explicitly states the workflow: give the user the URL and stop. Also specifies a prerequisite: a fresh six-digit code from request_sign_in. Does not explicitly state when not to use but context is clear.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.
Each tool has a clearly distinct purpose: blocks_in_area provides per-block travel times, isochrone gives reachable areas, nearby_pois gives times to specific POIs, walkability_summary gives times to destination categories, and the rest handle place lookup, catalog, tokens, and authentication. No two tools overlap in functionality.
Tool names mix styles: some start with verbs (find_place, get_catalog, redeem_code, request_sign_in), others are noun phrases (blocks_in_area, isochrone, nearby_pois, walkability_summary). There is no consistent verb_noun or noun pattern, making it harder for an agent to predict tool names.
With 10 tools, the server covers core travel time analysis, place lookup, authentication, and membership. The count is well-scoped for the domain—neither too few to be useful nor too many to be confusing.
The tool surface covers the major workflows: finding places, getting base data, computing travel times in various forms (blocks, isochrones, POIs, summaries), and managing API keys. Minor gaps exist (e.g., no direct tool for single-point travel time to arbitrary coordinates), but the set is largely complete for the stated purpose.
