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Glama

Quiver

by io.github.pipeworx-io

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Idempotent

Save data the agent will need to reuse later — across this conversation or across sessions. Use when you discover something worth carrying forward (a resolved ticker, a target address, a user preference, a research subject) so you don't have to look it up again. Stored as a key-value pair scoped by your identifier. Authenticated users get persistent memory; anonymous sessions retain memory for 24 hours. Pair with recall to retrieve later, forget to delete.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
keyYesMemory key (e.g., "subject_property", "target_ticker", "user_preference")
valueYesValue to store (any text — findings, addresses, preferences, notes)

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. First observed

TDQS

A4.7/5.0
Behavior4/5

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

Description complements annotations by adding behavioral details: scoped by identifier, persistent for authenticated users, 24-hour retention for anonymous sessions. Annotations already indicate idempotency and non-destructiveness, so description adds useful context without contradiction.

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 sentences efficiently convey purpose, usage, and persistence details. Information is front-loaded: 'Save data the agent will need to reuse later.' No redundant words.

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

Completeness5/5

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

For a simple key-value store with 2 parameters and no output schema, the description covers purpose, usage scenarios, persistence behavior, and companion tools (recall, forget). No gaps remain for correct agent invocation.

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?

Schema coverage is 100%, baseline 3. Description enhances parameter understanding by giving concrete key examples (subject_property, target_ticker) and value types (findings, addresses), adding meaning beyond the schema's generic descriptions.

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 explicitly states the tool saves data for reuse across conversations, with concrete examples (resolved ticker, target address, etc.). It distinguishes from siblings (recall, forget) and uses specific verbs (save, store, reuse).

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

Usage Guidelines5/5

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

The description explains when to use ('when you discover something worth carrying forward') and provides examples of what to store. It also instructs pairing with recall and forget, offering clear guidance on alternatives.

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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TDQS

A4.2/5.0
Disambiguation5/5

Each tool has a clearly distinct purpose with detailed descriptions. Overlapping areas like polymarket tools are well-differentiated by function (research, arbitrage, edge tracking, fill risk, cross-venue spread). The meta-tools (discover_tools, suggest_questions) further reduce ambiguity.

Naming Consistency5/5

All tool names use a consistent snake_case pattern (e.g., ask_pipeworx, bet_research, polymarket_edges). The naming is descriptive and predictable, aiding agent selection.

Tool Count3/5

34 tools is on the high side for typical MCP servers. While many are justified by the platform's breadth, the count slightly exceeds the ideal range, potentially overwhelming agents.

Completeness4/5

The tool set covers a wide array of domains (company data, drugs, prediction markets, economics, news, etc.) with CRUD-like operations for subscriptions and memory. Minor gaps exist (e.g., no direct social media or custom API tool), but overall the surface is well-matched to the server's data platform purpose.

Resources