Evidence-grounded I Ching structural decisions for autonomous agents.
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Deterministically cast a YOWAYOW Mind-Key hexagram from six evidence-grounded root/body/outcome positions. Use after an autonomous agent has researched a concrete action choice, structural diagnosis, experiment, or macro-structure question. Submit current facts and their manifestation verdicts; never submit yin/yang lines or a desired hexagram. The tool returns cast_ready, needs_evidence, or out_of_scope. It uses no LLM, no random/time casting, and never falls back to traditional liuyao. Do not use for fortune, luck, hidden facts, random outcomes, or as a substitute for high-stakes professional judgment.
Why the agent needs the cast. This MCP does not support fortune-telling or traditional liuyao.
Lower trigram: the controllable, acting, or focal side.
A concrete structural or action question. Not a fortune, luck, hidden-fact, or pure prophecy question.
Upper trigram: the dominant external constraint or interaction environment.
Deterministically cast a YOWAYOW Mind-Key hexagram from six evidence-grounded root/body/outcome positions. Use after an autonomous agent has researched a concrete action choice, structural diagnosis, experiment, or macro-structure question. Submit current facts and their manifestation verdicts; never submit yin/yang lines or a desired hexagram. The tool returns cast_ready, needs_evidence, or out_of_scope. It uses no LLM, no random/time casting, and never falls back to traditional liuyao. Do not use for fortune, luck, hidden facts, random outcomes, or as a substitute for high-stakes professional judgment.
| Argument | Type | Description |
|---|---|---|
| locale | string | |
| purpose* | string | Why the agent needs the cast. This MCP does not support fortune-telling or traditional liuyao. |
| subject* | object | Lower trigram: the controllable, acting, or focal side. |
| question* | string | A concrete structural or action question. Not a fortune, luck, hidden-fact, or pure prophecy question. |
| environment* | object | Upper trigram: the dominant external constraint or interaction environment. |
| decision_context* | object |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"question",
"purpose",
"decision_context",
"subject",
"environment"
],
"properties": {
"locale": {
"enum": [
"zh",
"en"
],
"type": "string",
"default": "zh"
},
"purpose": {
"enum": [
"choose_action",
"diagnose_structure",
"plan_experiment",
"analyze_macro_structure"
],
"type": "string",
"description": "Why the agent needs the cast. This MCP does not support fortune-telling or traditional liuyao."
},
"subject": {
"type": "object",
"required": [
"label"
],
"properties": {
"body": {
"type": "object",
"required": [
"focus"
],
"properties": {
"focus": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "What this causal position represents in this case."
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"required": [
"claim",
"verdict",
"source_type",
"confidence"
],
"properties": {
"claim": {
"type": "string",
"maxLength": 800,
"minLength": 4,
"description": "A concrete current fact. Do not put a forecast, recommendation, or hexagram judgment here."
},
"verdict": {
"enum": [
"manifested",
"not_manifested",
"uncertain"
],
"type": "string",
"description": "manifested = currently active or observable; not_manifested = verified not yet active or observable; uncertain = not established."
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Confidence in this evidence item. At least 0.65 is required to settle a line."
},
"source_ref": {
"type": "string",
"maxLength": 1000,
"description": "Public URL or an authorized internal record identifier. Required for public_source and internal_record."
},
"observed_at": {
"type": "string",
"maxLength": 80,
"description": "ISO-8601 date/time or a precise observation period when freshness matters."
},
"source_type": {
"enum": [
"public_source",
"internal_record",
"direct_observation",
"principal_statement",
"analysis_assumption"
],
"type": "string",
"description": "Where the fact came from. analysis_assumption is allowed for transparency but can never settle a line."
}
},
"additionalProperties": false
},
"default": [],
"maxItems": 8,
"description": "Evidence for whether this position is currently manifested. Do not submit yin/yang or a desired hexagram."
}
},
"description": "Body: current mechanism, coordination, resource flow, or control point.",
"additionalProperties": false
},
"root": {
"type": "object",
"required": [
"focus"
],
"properties": {
"focus": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "What this causal position represents in this case."
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"required": [
"claim",
"verdict",
"source_type",
"confidence"
],
"properties": {
"claim": {
"type": "string",
"maxLength": 800,
"minLength": 4,
"description": "A concrete current fact. Do not put a forecast, recommendation, or hexagram judgment here."
},
"verdict": {
"enum": [
"manifested",
"not_manifested",
"uncertain"
],
"type": "string",
"description": "manifested = currently active or observable; not_manifested = verified not yet active or observable; uncertain = not established."
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Confidence in this evidence item. At least 0.65 is required to settle a line."
},
"source_ref": {
"type": "string",
"maxLength": 1000,
"description": "Public URL or an authorized internal record identifier. Required for public_source and internal_record."
},
"observed_at": {
"type": "string",
"maxLength": 80,
"description": "ISO-8601 date/time or a precise observation period when freshness matters."
},
"source_type": {
"enum": [
"public_source",
"internal_record",
"direct_observation",
"principal_statement",
"analysis_assumption"
],
"type": "string",
"description": "Where the fact came from. analysis_assumption is allowed for transparency but can never settle a line."
}
},
"additionalProperties": false
},
"default": [],
"maxItems": 8,
"description": "Evidence for whether this position is currently manifested. Do not submit yin/yang or a desired hexagram."
}
},
"description": "Root: underlying drive, foundation, long-term pressure, or prerequisite.",
"additionalProperties": false
},
"label": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "Concrete identity of this side. Subject is the controllable/action side; environment is the dominant external constraint."
},
"outcome": {
"type": "object",
"required": [
"focus"
],
"properties": {
"focus": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "What this causal position represents in this case."
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"required": [
"claim",
"verdict",
"source_type",
"confidence"
],
"properties": {
"claim": {
"type": "string",
"maxLength": 800,
"minLength": 4,
"description": "A concrete current fact. Do not put a forecast, recommendation, or hexagram judgment here."
},
"verdict": {
"enum": [
"manifested",
"not_manifested",
"uncertain"
],
"type": "string",
"description": "manifested = currently active or observable; not_manifested = verified not yet active or observable; uncertain = not established."
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Confidence in this evidence item. At least 0.65 is required to settle a line."
},
"source_ref": {
"type": "string",
"maxLength": 1000,
"description": "Public URL or an authorized internal record identifier. Required for public_source and internal_record."
},
"observed_at": {
"type": "string",
"maxLength": 80,
"description": "ISO-8601 date/time or a precise observation period when freshness matters."
},
"source_type": {
"enum": [
"public_source",
"internal_record",
"direct_observation",
"principal_statement",
"analysis_assumption"
],
"type": "string",
"description": "Where the fact came from. analysis_assumption is allowed for transparency but can never settle a line."
}
},
"additionalProperties": false
},
"default": [],
"maxItems": 8,
"description": "Evidence for whether this position is currently manifested. Do not submit yin/yang or a desired hexagram."
}
},
"description": "Outcome: current observable action, result, metric, or already-manifested consequence.",
"additionalProperties": false
}
},
"description": "Lower trigram: the controllable, acting, or focal side.",
"additionalProperties": false
},
"question": {
"type": "string",
"maxLength": 1200,
"minLength": 8,
"description": "A concrete structural or action question. Not a fortune, luck, hidden-fact, or pure prophecy question."
},
"environment": {
"type": "object",
"required": [
"label"
],
"properties": {
"body": {
"type": "object",
"required": [
"focus"
],
"properties": {
"focus": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "What this causal position represents in this case."
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"required": [
"claim",
"verdict",
"source_type",
"confidence"
],
"properties": {
"claim": {
"type": "string",
"maxLength": 800,
"minLength": 4,
"description": "A concrete current fact. Do not put a forecast, recommendation, or hexagram judgment here."
},
"verdict": {
"enum": [
"manifested",
"not_manifested",
"uncertain"
],
"type": "string",
"description": "manifested = currently active or observable; not_manifested = verified not yet active or observable; uncertain = not established."
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Confidence in this evidence item. At least 0.65 is required to settle a line."
},
"source_ref": {
"type": "string",
"maxLength": 1000,
"description": "Public URL or an authorized internal record identifier. Required for public_source and internal_record."
},
"observed_at": {
"type": "string",
"maxLength": 80,
"description": "ISO-8601 date/time or a precise observation period when freshness matters."
},
"source_type": {
"enum": [
"public_source",
"internal_record",
"direct_observation",
"principal_statement",
"analysis_assumption"
],
"type": "string",
"description": "Where the fact came from. analysis_assumption is allowed for transparency but can never settle a line."
}
},
"additionalProperties": false
},
"default": [],
"maxItems": 8,
"description": "Evidence for whether this position is currently manifested. Do not submit yin/yang or a desired hexagram."
}
},
"description": "Body: current mechanism, coordination, resource flow, or control point.",
"additionalProperties": false
},
"root": {
"type": "object",
"required": [
"focus"
],
"properties": {
"focus": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "What this causal position represents in this case."
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"required": [
"claim",
"verdict",
"source_type",
"confidence"
],
"properties": {
"claim": {
"type": "string",
"maxLength": 800,
"minLength": 4,
"description": "A concrete current fact. Do not put a forecast, recommendation, or hexagram judgment here."
},
"verdict": {
"enum": [
"manifested",
"not_manifested",
"uncertain"
],
"type": "string",
"description": "manifested = currently active or observable; not_manifested = verified not yet active or observable; uncertain = not established."
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Confidence in this evidence item. At least 0.65 is required to settle a line."
},
"source_ref": {
"type": "string",
"maxLength": 1000,
"description": "Public URL or an authorized internal record identifier. Required for public_source and internal_record."
},
"observed_at": {
"type": "string",
"maxLength": 80,
"description": "ISO-8601 date/time or a precise observation period when freshness matters."
},
"source_type": {
"enum": [
"public_source",
"internal_record",
"direct_observation",
"principal_statement",
"analysis_assumption"
],
"type": "string",
"description": "Where the fact came from. analysis_assumption is allowed for transparency but can never settle a line."
}
},
"additionalProperties": false
},
"default": [],
"maxItems": 8,
"description": "Evidence for whether this position is currently manifested. Do not submit yin/yang or a desired hexagram."
}
},
"description": "Root: underlying drive, foundation, long-term pressure, or prerequisite.",
"additionalProperties": false
},
"label": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "Concrete identity of this side. Subject is the controllable/action side; environment is the dominant external constraint."
},
"outcome": {
"type": "object",
"required": [
"focus"
],
"properties": {
"focus": {
"type": "string",
"maxLength": 300,
"minLength": 2,
"description": "What this causal position represents in this case."
},
"evidence": {
"type": "array",
"items": {
"type": "object",
"required": [
"claim",
"verdict",
"source_type",
"confidence"
],
"properties": {
"claim": {
"type": "string",
"maxLength": 800,
"minLength": 4,
"description": "A concrete current fact. Do not put a forecast, recommendation, or hexagram judgment here."
},
"verdict": {
"enum": [
"manifested",
"not_manifested",
"uncertain"
],
"type": "string",
"description": "manifested = currently active or observable; not_manifested = verified not yet active or observable; uncertain = not established."
},
"confidence": {
"type": "number",
"maximum": 1,
"minimum": 0,
"description": "Confidence in this evidence item. At least 0.65 is required to settle a line."
},
"source_ref": {
"type": "string",
"maxLength": 1000,
"description": "Public URL or an authorized internal record identifier. Required for public_source and internal_record."
},
"observed_at": {
"type": "string",
"maxLength": 80,
"description": "ISO-8601 date/time or a precise observation period when freshness matters."
},
"source_type": {
"enum": [
"public_source",
"internal_record",
"direct_observation",
"principal_statement",
"analysis_assumption"
],
"type": "string",
"description": "Where the fact came from. analysis_assumption is allowed for transparency but can never settle a line."
}
},
"additionalProperties": false
},
"default": [],
"maxItems": 8,
"description": "Evidence for whether this position is currently manifested. Do not submit yin/yang or a desired hexagram."
}
},
"description": "Outcome: current observable action, result, metric, or already-manifested consequence.",
"additionalProperties": false
}
},
"description": "Upper trigram: the dominant external constraint or interaction environment.",
"additionalProperties": false
},
"decision_context": {
"type": "object",
"required": [
"objective"
],
"properties": {
"options": {
"type": "array",
"items": {
"type": "string",
"maxLength": 300,
"minLength": 2
},
"default": [],
"maxItems": 8,
"description": "Existing options. choose_action requires at least two distinct options."
},
"objective": {
"type": "string",
"maxLength": 800,
"minLength": 4,
"description": "The concrete objective or decision to be improved."
},
"constraints": {
"type": "array",
"items": {
"type": "string",
"maxLength": 400,
"minLength": 2
},
"default": [],
"maxItems": 12,
"description": "Known boundaries such as budget, regulation, capacity, deadlines, or risk limits."
},
"time_horizon": {
"type": "string",
"maxLength": 160,
"description": "Decision horizon, not a divination time seed. Example: next 90 days."
},
"success_criteria": {
"type": "array",
"items": {
"type": "string",
"maxLength": 400,
"minLength": 2
},
"default": [],
"maxItems": 10,
"description": "Observable criteria that would show the decision worked."
}
},
"additionalProperties": false
}
},
"additionalProperties": false
}Use this zero-AI preflight before heart_cast when the original question is ambiguous or unstructured. It rejects ordinary fact lookups, pure prophecy, fortune, hidden facts, traditional liuyao, and high-stakes professional replacement. It returns research_required, needs_detail, or out_of_scope, plus the autonomous agent's next step. A needs_detail response means the agent should extract or research objective, options, constraints, success criteria, and current evidence; it does not require a human reply when authorized sources are available.
| Argument | Type | Description |
|---|---|---|
| locale | string | |
| question* | string | The user's original question before six-position evidence mapping. |
{
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"question"
],
"properties": {
"locale": {
"enum": [
"zh",
"en"
],
"type": "string",
"default": "zh"
},
"question": {
"type": "string",
"maxLength": 1200,
"minLength": 4,
"description": "The user's original question before six-position evidence mapping."
}
},
"additionalProperties": false
}