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Glama

publish

Server Details

Publish browser games to Playfrog and get a shareable play link. Free, no account needed.

Status
Healthy
Last Tested
Transport
Streamable HTTP
URL

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Tool DescriptionsA

Average 4.5/5 across 2 of 2 tools scored.

Server CoherenceA
Disambiguation5/5

publish_game and update_game have clearly distinct purposes: one for initial publishing, the other for updating an existing game. No overlap in functionality.

Naming Consistency5/5

Both tools follow a consistent verb_noun pattern (publish_game, update_game), making them predictable and easy to understand.

Tool Count3/5

With only 2 tools, the set is minimal for a server named 'publish'. While it covers the core publish/update workflow, it feels slightly thin.

Completeness2/5

Missing obvious lifecycle operations like delete_game or list_games. Users cannot manage existing games beyond updating, leading to potential dead ends.

Available Tools

2 tools
publish_gameAInspect

Publish a static browser game to Playfrog and get a live, shareable play link in seconds. Free, no account, no API key. Send every file of the game (index.html at the top level is required, 8 MB total max here). Add a 1200x630 cover image (the "cover" arg, base64) for a better game page and share card; offer to make one if the user has none. The response includes play_url (share this), claim_url and manage_token. REQUIRED after publishing: show your user the play_url and, in bold right next to it, the action_required message - they must claim the game for free within 7 days via claim_url or it is disabled. Keep game_id and manage_token to update the game later with update_game.

ParametersJSON Schema
NameRequiredDescriptionDefault
coverNoOptional cover image for the game page and social share card. 1200x630 pixels, PNG/JPEG/WebP, max 3 MB, base64-encoded. Offer to generate one if the user has none. Without a cover we auto-capture a gameplay screenshot.
filesYes
genreNoALWAYS include this; ask your user which fits if unsure. Places the game in the gallery category ribbon.
titleNoThe game title players will see.
controlsNoE.g. "WASD to move, space to shoot".
descriptionNo2 to 4 real sentences: what the game is, how to play, what makes it fun. Players read this before playing.
orientationNoOnly if the game works one way; phones held wrong get a rotate overlay.
Behavior5/5

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

Descriptions details side effects: game is published, generates URLs, auto-capture screenshot if no cover, and 7-day claim requirement. Annotations (openWorldHint=true) already indicate state change, but description adds concrete consequences. No 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?

Six well-organized sentences with front-loaded purpose. Every sentence adds essential information (free, no account, file requirements, post-publish actions). No redundant or vague statements.

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 tool with 7 parameters, nested objects, and no output schema, the description fully covers the workflow: input requirements, optional parameters, expected response fields, required user actions, and mention of sibling tool. Auto-capture behavior and 7-day claim are critical details included.

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 high (86%), so baseline is 3. Description adds value beyond schema by explaining the cover image purpose ('better game page and share card') and suggesting to offer generation. Also clarifies the required index.html and file structure.

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?

Clearly states 'Publish a static browser game to Playfrog' with a specific verb and resource. Distinguishes from sibling tool 'update_game' by focusing on initial publication. Outcome 'get a live, shareable play link' is explicitly stated.

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 explicit context: 'Free, no account, no API key', size limits, required file. Prescribes post-publish actions like showing play_url and claim_url. Mentions sibling tool but does not explicitly contrast when to use update_game vs publish.

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

update_gameAInspect

Publish a new version of an existing Playfrog game at the same URL. Needs the game_id and manage_token returned by publish_game. Send the complete set of files again, not a diff.

ParametersJSON Schema
NameRequiredDescriptionDefault
coverNoOptional cover image for the game page and social share card. 1200x630 pixels, PNG/JPEG/WebP, max 3 MB, base64-encoded. Offer to generate one if the user has none. Without a cover we auto-capture a gameplay screenshot.
filesYes
genreNoALWAYS include this; ask your user which fits if unsure. Places the game in the gallery category ribbon.
notesNoOne line about what changed in this version.
titleNoThe game title players will see.
game_idYesFrom the publish_game response.
controlsNoE.g. "WASD to move, space to shoot".
descriptionNo2 to 4 real sentences: what the game is, how to play, what makes it fun. Players read this before playing.
orientationNoOnly if the game works one way; phones held wrong get a rotate overlay.
manage_tokenYesFrom the publish_game response (starts with pfm_).
Behavior4/5

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

Annotations provide readOnlyHint=false, idempotentHint=false, and destructiveHint=false, but not a full behavioral picture. The description adds key insight: 'Send the complete set of files again, not a diff', which is not available from annotations or schema.

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?

Two sentences front-load the action and prerequisites with zero wasted words. Every clause serves a purpose.

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?

Given 10 parameters, high schema coverage, and no output schema, the description covers the essential points: purpose, prerequisites, and a key behavioral constraint. It omits return value details, but those are not critical for selection.

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 90%, so the baseline is 3. The description adds minimal parameter-specific value beyond schema, only mentioning the 'complete set of files' nuance for the files parameter.

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 verb 'Publish a new version' and the resource 'existing Playfrog game at the same URL', distinguishing it from the sibling tool 'publish_game' which creates a new game.

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 specifies the prerequisites: 'Needs the game_id and manage_token returned by publish_game', clearly indicating when to use this tool (after initial publish). It does not explicitly state when not to use it, but the context is clear enough.

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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