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segalz

xAI Grok MCP Bridge

by segalz

grok_ask

Ask Grok to answer questions, review code, or solve tasks via a headless CLI session. Specify model, reasoning effort, and workspace for tailored responses.

Instructions

Ask Grok a prompt in a new headless CLI session.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
modelNoOptional Grok model id passed to `--model`.grok-4.5
rulesNoOptional run-scoped rules appended to Grok's system prompt.
promptYesThe question or task for Grok.
max_turnsNoOptional limit for agent turns.
timeout_sNoMaximum seconds to wait. Default 300, capped at 600.
workspaceNoWorking directory for Grok. Defaults to this server's cwd.
raw_outputNoReturn text plus raw stdout/stderr and parsed JSON when true.
session_idNoOptional UUID for a new named headless session.
reasoning_effortNoOptional reasoning effort string passed through.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided, so description bears full responsibility. It only mentions a 'new headless CLI session' but omits behavioral traits like session handling, timeout behavior, authentication needs, or raw output characteristics.

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?

A single sentence that is concise but lacks structure. It could be expanded with a brief example or key options without losing conciseness.

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

Completeness3/5

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

Given the complexity (9 parameters) and presence of output schema, the description is minimally adequate. It doesn't highlight common use cases or important parameters, but combined with schema it is acceptable for a straightforward prompting tool.

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 100%, so baseline is 3. The description adds no extra meaning beyond the input schema; it does not explain parameters like model, rules, or raw_output.

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 'Ask', the resource 'Grok', and the context 'new headless CLI session'. It effectively distinguishes from sibling tools like grok_continue (which implies continuation) and grok_code_review.

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?

No explicit guidance on when to use this tool vs alternatives like grok_continue or grok_code_review. The phrase 'new headless CLI session' hints at one-shot usage, but lacks clear when-to-use or when-not-to-use instructions.

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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