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WattCoin

by io.github.WattCoin-Org
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WattCoin: List tasks

list_tasks
Read-onlyIdempotent

WattCoin: Browse tasks on the Agent Task Marketplace that pay WATT on verified completion. Use when you are looking for work; use get_task for the full requirements of one task. No auth needed. Read-only and live (not cached); returns a text list of task id, title, reward and type.

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": "list_tasks"
  }
}

Input Schema

NameRequiredDescriptionDefault
typeNoTask type filter (e.g. code); omit for all types
statusNoTask status filter, default openopen

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changed
    • addedInput schema / properties / status / default
      Added value: +"open"
    • changedInput schema / properties / status / description
      Previous value: -"open (default), claimed, submitted, verified, rejected, expired"New value: +"Task status filter, default open"
    • addedInput schema / properties / status / enum
      Added value: +[
+  "open",
+  "claimed",
+  "submitted",
+  "verified",
+  "rejected",
+  "expired",
+  "cancelled",
+  "delegated",
+  "pending_review"
+]
    • changedInput schema / properties / type / description
      Previous value: -"code, data, content, scrape, analysis, compute, other"New value: +"Task type filter (e.g. code); omit for all types"
    • addedInput schema / properties / type / enum
      Added value: +[
+  "code",
+  "data",
+  "content",
+  "scrape",
+  "analysis",
+  "compute",
+  "marketing_content",
+  "other"
+]
  2. First observed

TDQS

A4.2/5.0
Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint, so safety is covered; the description adds genuinely new context: no auth needed and live, non-cached results. It stops short of disclosing result limits or pagination behavior, which matters for an open-ended listing tool.

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?

Three short sentences, front-loaded with purpose, then routing, then operational facts. Every sentence carries distinct information with no repetition of the title.

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?

With no output schema, the description usefully enumerates the returned fields (id, title, reward, type) and confirms no auth is required. The one gap is size/limit behavior: an agent does not know how many tasks come back or whether results are truncated.

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% and both filter parameters carry their own descriptions and enum values, so the schema already does the heavy lifting. The description adds nothing about filter semantics, and the non-default statuses (verified, delegated, pending_review) are left entirely to the enum.

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 names a specific verb and resource (browse tasks on the Agent Task Marketplace) plus the incentive (pay WATT on verified completion), which lets an agent distinguish it from get_task and the other sibling tools. It also states the returned fields, so the agent knows what a call yields before opening the schema.

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?

It gives an explicit when-to-use ('when you are looking for work') and routes to get_task for full requirements of a single task, which is real routing guidance. It does not address the closely-named sibling browse_marketplace, so the agent must infer the difference between the two listing tools.

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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