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Chuk MCP Maritime Archives

by IBM

maritime_get_voyage_full

Get a unified view of a voyage by retrieving the core record plus all linked wreck, vessel, hull profile, and track data, with optional crew records.

Instructions

Get a unified view of a voyage with all linked records.

Returns the voyage record enriched with related wreck, vessel, hull profile, CLIWOC track, and optionally crew data. Each link includes a confidence score (0.0-1.0) indicating match quality.

Args: voyage_id: Voyage identifier (e.g. "das:0372.1", "eic:0042") include_crew: If true, also find crew records linked to this voyage output_mode: Response format - "json" (default) or "text"

Returns: JSON or text with unified voyage view including all linked records

Tips for LLMs: - Start with maritime_search_voyages to find the voyage_id - This tool replaces the need to call get_voyage, get_wreck, get_vessel, and get_hull_profile separately - The links_found field shows which related records exist - The link_confidence field shows match quality (1.0 = exact ID match, lower values indicate fuzzy name+date matching) - Use include_crew=true to find crew/muster records for a voyage - Cross-reference: a wreck's voyage_id links to the originating voyage - The cliwoc_track field shows logbook positions (requires CLIWOC 2.1 Full data for ship name matching)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
voyage_idYes
include_crewNo
output_modeNojson
Behavior4/5

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

Without annotations, the description discloses behavioral traits: returns enriched data with confidence scores, optional crew inclusion, and output format choices. It does not mention mutability or safety, but read-only nature is implied by 'get'. Sufficient transparency for tool selection.

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 well-structured with Args, Returns, and Tips sections. It is informative but could be slightly more concise; for example, the Tips section repeats some info. Still efficient and front-loaded.

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 the complexity of a unified view with multiple linked records, the description covers key aspects: what is returned, how confidence works, and optional crew. Missing exact output structure but sufficient for an agent to understand capabilities.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters5/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0%, but the description fully explains each parameter: voyage_id with examples, include_crew with effect, output_mode with options. It adds context beyond schema (e.g., confidence interpretation, link fields). This compensates for missing schema 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 clearly states the tool retrieves a unified voyage view with all linked records, distinguishing it from sibling tools like get_voyage, get_wreck, etc. It specifies what is included (wreck, vessel, hull profile, CLIWOC track, crew) and provides a specific action verb 'get unified view'.

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 gives explicit when-to-use guidance: start with maritime_search_voyages, and notes this tool replaces separate calls. It provides tips on include_crew and confidence scores, and mentions cross-referencing. This is comprehensive guidance.

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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