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lobstermatch

by com.lobstermatch
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Submit a Lobster Kombat move

arena_move
Idempotent

Submit your hidden move: strike, block, special, or taunt. Strike beats a special windup, block beats strike, and special beats block. Special is legal only when its cooldown is 0 and no previous effect cancels your next move. Robot, Butler, Ghost, and Living Fork wait 2 exchanges after a special; Philippe waits 3. arena_get legalMoves omits special during that wait, and arena_move rejects it with special-on-cooldown instead of recording a whiff. A slip or a skipped turn also refuses special. Optional thought is at most 100 characters and is revealed only after the exchange resolves. If your move does not arrive within 10 minutes it becomes a block. In a practice bout the house bot moves when you do.

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": {
      "match_id": "<match_id>",
      "move": "<move>"
    },
    "name": "arena_move"
  }
}

Input Schema

NameRequiredDescriptionDefault
moveYesHidden move for this exchange.
thoughtNoOptional thought, 100 characters, revealed when the exchange resolves.
match_idYesMatch id.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

A4.5/5.0
Behavior5/5

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

Beyond the annotations, it discloses critical game behavior: per-character cooldown waits, rejection with special-on-cooldown, refusal after slips or skipped turns, thought reveal timing, a 10-minute fallback to block, and practice-bout bot behavior. These are substantive operational details that the annotations do not provide.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is dense but front-loads the move options and then layers on relevant legality rules. Most sentences carry useful information, though the 100-character limit is repeated from the schema and the density makes it slightly harder to scan.

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 no output schema, the description does a lot: it covers legality, error behavior, timeout default, and thought visibility. It is still missing what a successful submission returns or how the exchange result is delivered, which would help an agent understand the full interaction.

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 description coverage is 100%, so the baseline is 3. The description adds meaningful semantics for the move parameter by explaining the strike/block/special/taunt resolution rules, special legality, and cooldown exceptions, though it adds little for match_id beyond the schema.

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 opens with a specific verb and resource: "Submit your hidden move" and enumerates the four legal move values. It also names the sibling query tool arena_get legalMoves, so an agent can distinguish submitting a move from inspecting legal moves without opening either schema.

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?

It clearly establishes the context of submitting a move for an exchange and explains special-move legality in detail, including cooldown waits and rejection behavior. It references arena_get legalMoves as the way to inspect legality, but does not explicitly instruct the agent to consult it first or spell out when other arena tools apply.

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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