SINT Protocol

sint__store_memory

Store data entries with custom tags and persistence options in a security-enforced memory bank for AI agents.

Instructions

Store an entry in the memory bank with optional tags and persistence

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": {
      "key": "<key>",
      "value": "<value>"
    },
    "name": "sint__store_memory"
  }
}

Input Schema

Name	Required	Description
`key`	Yes	Unique key for the memory entry
`value`	Yes	Value to store (any JSON value)
`tags`	No	Optional tags for categorisation and search
`persist`	No	Whether to persist beyond this session (default: false)

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.1.0Apr 16, 2026

TDQS

C2.9/5.0

Behavior2/5

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

With no annotations provided, the description carries full burden for behavioral disclosure. While it mentions 'persistence beyond this session' which hints at session-bound behavior, it doesn't address critical aspects like whether this operation overwrites existing entries, what happens on duplicate keys, error conditions, or performance characteristics. The description is insufficient for a mutation tool with zero annotation coverage.

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 a single, efficient sentence that communicates the core functionality without unnecessary words. It's appropriately sized for a straightforward storage operation and front-loads the essential action.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a mutation tool with no annotations and no output schema, the description is inadequate. It doesn't explain what happens on success/failure, what gets returned, how errors manifest, or the implications of the persistence setting. The agent lacks sufficient context to use this tool effectively in production scenarios.

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?

With 100% schema description coverage, the schema already documents all 4 parameters thoroughly. The description adds minimal value by mentioning 'optional tags and persistence' but provides no additional semantic context beyond what's in the schema descriptions. This meets the baseline for high schema coverage.

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 states the action ('Store an entry') and resource ('in the memory bank'), making the purpose immediately understandable. However, it doesn't differentiate this tool from its sibling 'sint__recall_memory' beyond the basic verb difference, missing an opportunity to clarify their complementary relationship.

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

Usage Guidelines2/5

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

The description provides no guidance on when to use this tool versus alternatives. With sibling tools like 'sint__recall_memory' and 'sint__pending' that might relate to memory operations, there's no indication of appropriate contexts, prerequisites, or exclusions for this storage function.

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