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Glama

A2A Artifact Handoff

Server Details

Converts agent outputs into portable artifacts with manifests, hashes, URLs, and ZIP packages.

Status
Healthy
Last Tested
Transport
Streamable HTTP
URL

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Tool DescriptionsA

Average 4/5 across 1 of 1 tools scored.

Server CoherenceA
Disambiguation5/5

There is only one tool, so there is no possibility of confusion between tools. The tool's purpose is clearly distinct simply by being the only option.

Naming Consistency5/5

With a single tool, the naming is trivially consistent. 'prepare_artifact' follows a clear verb_noun convention, which is a fine pattern.

Tool Count2/5

Having only one tool feels too thin for a server that promises artifact handoff. The scope seems narrow but still would benefit from at least a few related operations (e.g., retrieve or list artifacts) to be a useful standalone server.

Completeness2/5

The server only supports preparing artifacts for transfer, with no tools to retrieve, manage, or delete them. This creates significant gaps in the lifecycle, as an agent cannot perform any follow-up actions.

Available Tools

1 tool
prepare_artifactAInspect

Prepare content for transfer to another agent or a human reviewer.

`target_modes` accepts either a JSON list or an actual list of MIME types.
The result includes expiring artifact URLs, SHA-256 hashes, a manifest,
and a downloadable ZIP package.
ParametersJSON Schema
NameRequiredDescriptionDefault
contentYes
filenameNoartifact.md
ttl_hoursNo
media_typeNotext/markdown
target_modesNo

Output Schema

ParametersJSON Schema
NameRequiredDescription

No output parameters

Behavior3/5

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

With no annotations, the description carries the full burden of disclosing behavior. It mentions that target_modes accepts a JSON list or an actual list, and that the result includes expiring URLs, SHA-256 hashes, a manifest, and a ZIP package. This is useful but does not cover potential side effects, permission requirements, or data retention implications. It is adequate but not rich.

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 concise, with two short sentences plus a line break. It front-loads the primary purpose and adds key details without filler. Every sentence serves a purpose, making it highly efficient.

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 tool with 5 parameters and an output schema, the description provides sufficient context: what it does, what it returns, and the main parameter nuance. It does not explain every parameter, but the defaults and names cover the rest. Overall, it is complete enough for effective tool selection and invocation.

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 0%, so the description must compensate. It explains the non-obvious target_modes parameter in detail, but does not elaborate on content, filename, ttl_hours, or media_type. Those are largely self-explanatory from their names and defaults, so the description partially compensates but not fully.

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 clearly states the tool's purpose: 'Prepare content for transfer to another agent or a human reviewer.' It uses a specific verb and resource, and while there are no sibling tools to differentiate from, the purpose is unambiguous and directly aligned with the tool name.

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 provides clear context on when to use the tool: for transferring content to another agent or a human reviewer. It does not explicitly state when not to use it or mention alternative tools, but the given context is sufficient for most cases, placing it at a 4 rather than a 5.

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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