# astroway_bazi_hidden_stems

The one to three stems each branch shelters, with role and weight. This is where most of a chart's elements live: a chart with no visible Water can still be soaked in it. On the four storage branches the middle role belongs to the stored element, not to the second in the list. [Group: BaZi (Four Pillars)] [Endpoint: POST /v1/bazi/hidden-stems] [Required: date] [Cost: 10 credits (Tier 1)]

Agent View of the PolicyLayer registry record for `astroway_bazi_hidden_stems`. HTML page: https://policylayer.com/tools/info-astroway-astrology/astroway-bazi-hidden-stems

## Facts

- Tool: `astroway_bazi_hidden_stems`
- Server: AstroWay Astrology API (full catalogue) (`https://mcp.astroway.info/mcp`) — https://policylayer.com/tools/info-astroway-astrology.md
- Homepage: https://github.com/https://mcp.astroway.info/mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: no
- Parameters: 12 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `date` | string | yes |  |
| `time` | string | no |  |
| `fields` | string | 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. |
| `gender` | string | no |  |
| `language` | string | no |  |
| `timezone` | string | no | IANA zone name such as Europe/Kyiv, or auto to look the zone up from latitude and longitude. The server takes the offset that zone kept at this local date and t |
| `longitude` | number | no |  |
| `precision` | integer | no | Compact mode: round fractional numbers to this many decimals. Longitudes carry 14 by default; 2 is finer than any chart is drawn. |
| `dayBoundary` | string | no |  |
| `includeLuck` | boolean | no |  |
| `stageSchool` | string | no |  |
| `trueSolarTime` | boolean | no |  |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "astroway_bazi_hidden_stems",
    "arguments": {
      "date": "<date>"
    }
  }
}
```

## Why astroway_bazi_hidden_stems is rated Low

Even though astroway_bazi_hidden_stems only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Risk signals: High parameter count (14 properties)

## Use case

AI agents call astroway_bazi_hidden_stems to retrieve information from AstroWay Astrology API (full catalogue) without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches AstroWay Astrology API (full catalogue):

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "astroway_bazi_hidden_stems": {}
  }
}
```

## Other tools on AstroWay Astrology API (full catalogue) (798)

- `astroway_esoteric_djamaspa` — Destructive — https://policylayer.com/tools/info-astroway-astrology/astroway-esoteric-djamaspa.md
- `astroway_vedic_compatibility_dashakoota` — Destructive — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-compatibility-dashakoota.md
- `astroway_calendar_planetary_cycles` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-calendar-planetary-cycles.md
- `astroway_hd_rave_new_years` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-hd-rave-new-years.md
- `astroway_horary_diagnostics` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-horary-diagnostics.md
- `astroway_mcp_multi_agent_coordinate` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-mcp-multi-agent-coordinate.md
- `astroway_vedic_dashas_chara_prana` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-dashas-chara-prana.md
- `astroway_vedic_dashas_kalachakra_prana` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-dashas-kalachakra-prana.md
- `astroway_vedic_dashas_tribhagi_maha` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-dashas-tribhagi-maha.md
- `astroway_vedic_doshas_kp_manglik` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-doshas-kp-manglik.md
- `astroway_vedic_kp_sub_sub_lord` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-kp-sub-sub-lord.md
- `astroway_vedic_lal_kitab_debts` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-lal-kitab-debts.md
- `astroway_vedic_muhurat_business_start` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-muhurat-business-start.md
- `astroway_vedic_muhurat_education_start` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-muhurat-education-start.md
- `astroway_vedic_panchang_choghadia` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-panchang-choghadia.md
- `astroway_vedic_panchang_full` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-vedic-panchang-full.md
- `astroway_webhooks_retrograde_start` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-webhooks-retrograde-start.md
- `astroway_webhooks_transit_trigger` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-webhooks-transit-trigger.md
- `astroway_webhooks_void_of_course_start` — Execute — https://policylayer.com/tools/info-astroway-astrology/astroway-webhooks-void-of-course-start.md
- `astroway_account_status` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-account-status.md
- `astroway_agent_tools` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-agent-tools.md
- `astroway_ai_interpret_element` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-ai-interpret-element.md
- `astroway_ai_interpret_natal` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-ai-interpret-natal.md
- `astroway_ai_interpret_placement` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-ai-interpret-placement.md
- `astroway_ai_interpret_synastry` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-ai-interpret-synastry.md
- `astroway_ai_interpret_tarot` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-ai-interpret-tarot.md
- `astroway_ai_interpret_transits` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-ai-interpret-transits.md
- `astroway_aspects_antiscia` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-aspects-antiscia.md
- `astroway_aspects_arabic_parts` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-aspects-arabic-parts.md
- `astroway_aspects_aspect_bar` — Read — https://policylayer.com/tools/info-astroway-astrology/astroway-aspects-aspect-bar.md
- …and 768 more: https://policylayer.com/tools/info-astroway-astrology.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=info-astroway-astrology · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/info-astroway-astrology