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Robyn — Gasless Cross-Chain for AI Agents

by io.github.ox31461
OverviewDiscussionsAdmin

NULL transparency - signed hashes of every served crypto artifact

null_transparency

The signed sha256 of every crypto artifact the server hands out (SDK, bundle, workers); hash changes are witness-chained under release:. Fetch an artifact, hash it, compare - a mismatch means you were served something that is not the signed release.

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": "null_transparency"
  }
}

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

A4.1/5.0
Behavior4/5

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

With no annotations, the description carries the full transparency burden. It discloses that hashes are signed, that changes are witness-chained under release:<file>, and what a mismatch signifies. It does not cover auth, rate limits, or errors, but for a read-only verification tool the core behavior is well disclosed.

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 two sentences with front-loaded information: what is provided, how it is chained, and how to use it. Every clause adds meaningful value, and there is no redundant filler.

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?

Despite having no output schema, the description tells an agent what data to expect, how it is organized, and how to interpret the result. Minor unknowns such as exact response serialization and error cases remain, but the zero-parameter nature keeps the tool simple enough that the description is largely sufficient.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters and the schema coverage is 100%, so there is no parameter ambiguity for the description to compensate for. The baseline of 4 applies because there is nothing to add beyond the empty schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly identifies the resource (signed sha256 of every served crypto artifact) and the intended operation (fetch, hash, compare), making the tool's purpose evident. It does not explicitly differentiate from sibling tools like null_witness_head or null_witness_range, so it misses the top tier for sibling distinction.

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 description gives a concrete usage workflow: fetch an artifact, hash it, compare, and treat a mismatch as evidence of serving unsigned content. This provides clear context for when to use the tool, though it does not explicitly mention alternatives or exclusions.

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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