AstroWay Tarot

RWS: Shadow Work

astroway_tarot_rider_waite_draw_shadow_work

Read-onlyIdempotent

6-card shadow integration spread.

[Group: Tarot: Rider-Waite-Smith] [Endpoint: POST /v1/tarot/rider-waite/draw/shadow-work] [Cost: 10 credits (Tier 1)]

Input Schema

Name	Required	Description
`art`	No	Card art set, e.g. rws-1909, rws-restored, rws-vector. GET /v1/tarot/decks lists the sets per deck.
`seed`	No
`fields`	No	Compact mode: comma-separated dotted paths to keep, relative to `data`, e.g. "planets.name,planets.longitude,houses.cusp". Omit for the whole response.
`question`	No
`precision`	No	Compact mode: round fractional numbers to this many decimals. Longitudes carry 14 by default; 2 is finer than any chart is drawn.
`allowReversed`	No

Output Schema

Name	Required	Description	Default
`seed`	No
`drawn`	No
`spread`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 6, 2026

addedInput schema / properties / art

Added value: +{
+  "description": "Card art set, e.g. rws-1909, rws-restored, rws-vector. GET /v1/tarot/decks lists the sets per deck.",
+  "maxLength": 40,
+  "type": "string"
+}

First observedOct 5, 2026

TDQS

B3/5.0

Behavior3/5

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

Annotations already declare readOnly/idempotent/non-destructive, so the bar is lower; the description usefully adds billing context (10 credits, Tier 1) and the endpoint. It does not explain how seeding/randomness works or whether a question is expected.

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?

Extremely terse and front-loaded: spread description first, then bracketed group/endpoint/cost metadata. Nothing is wasted, though the brevity edges toward under-specification.

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?

An output schema exists so return values need no explanation, and cost/endpoint are covered. However the undocumented parameters and absent usage guidance leave real gaps for a draw tool competing with a dozen sibling spreads.

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

Parameters2/5

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

Schema coverage is only 50%, with seed, question, and allowReversed carrying no descriptions, and the description adds no parameter meaning at all. For a 6-parameter draw tool this leaves half the surface undocumented in both places.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States the specific spread type and card count ('6-card shadow integration spread'), which distinguishes it from the many sibling draws (single, three-card, celtic cross, horseshoe). It lacks an explicit verb but the resource is unambiguous in context.

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?

Provides no when-to-use guidance and never mentions alternatives such as the sibling shadow_card or spiritual_path spreads. An agent must infer selection purely from the spread name.

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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