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sprite-agent-mcp

sprite-agent-mcp

Agent operations policy

sprite_policy

Reads the binding agent policy before any action: call only MCP tools, never modify repository code, and check source-integrity status.

Instructions

Returns the binding policy: agents MUST only call MCP tools and MUST NOT modify repository code. Also reports source-integrity status. Read this before doing anything else.

Input Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

A3.9/5.0
Behavior3/5

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

No annotations exist, so the description carries the full behavioral burden. It discloses the two categories of content returned (binding policy rules and source-integrity status), but says nothing about output format, cost, or whether the integrity report is a live check versus a cached status.

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, zero filler, with the actionable directive front-loaded ahead of the descriptive clauses. Every sentence contributes either scope, output content, or ordering guidance.

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 zero-parameter, no-annotation, no-output-schema informational tool, the description covers what the agent needs: what comes back and that it should be consulted first. Only the precise return shape and the distinction from sprite_verify_integrity are left implicit, which is a minor gap.

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 schema takes zero parameters at 100% coverage, so there is nothing for the description to disambiguate. The baseline for a parameterless tool applies, and the description correctly implies no inputs are needed.

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 uses a specific verb and resource ('Returns the binding policy') and adds a secondary output ('also reports source-integrity status'), which lets an agent distinguish this from drawing-oriented siblings. It does not differentiate itself from sprite_verify_integrity, which appears to cover overlapping integrity-status ground.

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?

Provides an explicit temporal directive — 'Read this before doing anything else' — which tells the agent exactly when to call it relative to every other tool. It gives no exclusions or alternatives, and does not clarify its relationship to sprite_verify_integrity for the integrity portion.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.