get_day_master

Return a short personality sketch for one Heavenly Stem (天干) Hanja — the day stem (일간) from a Saju chart.

Part of the SAJU (Korean Fortune Teller) MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

saju-from-seoul/saju Read

// WHEN AI AGENTS USE THIS TOOL

AI agents call get_day_master to retrieve information from SAJU (Korean Fortune Teller) without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.

// WHY ENFORCE A POLICY ON GET_DAY_MASTER

Even though get_day_master only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.

// RECOMMENDED POLICY

Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.

saju-from-seoul-saju.yaml

tools:
  get_day_master:
    rules:
      - action: allow

See the full SAJU (Korean Fortune Teller) policy for all 4 tools.

// DETAILS

Tool Name get_day_master

Category Read

MCP Server SAJU (Korean Fortune Teller) MCP Server

Risk Level Low

// MORE SAJU (KOREAN FORTUNE TELLER) TOOLS

Read calculate_saju Read check_compatibility Read list_stems_and_branches

// WHAT CAN GO WRONG

Agents calling read-class tools like get_day_master have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER READ TOOLS ACROSS MCP SERVERS

Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.

Open Library MCP Server get_author_info Open Library MCP Server get_author_photo Open Library MCP Server get_authors_by_name Open Library MCP Server get_book_by_id Open Library MCP Server get_book_by_title Open Library MCP Server get_book_cover

// RELATED READING

// FAQ

What does the get_day_master tool do? +

Return a short personality sketch for one Heavenly Stem (天干) Hanja — the day stem (일간) from a Saju chart.. It is categorised as a Read tool in the SAJU (Korean Fortune Teller) MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_day_master? +

Add a rule in your Intercept YAML policy under the tools section for get_day_master. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the SAJU (Korean Fortune Teller) MCP server.

What risk level is get_day_master? +

get_day_master is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_day_master? +

Yes. Add a rate_limit block to the get_day_master rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block get_day_master completely? +

Set action: deny in the Intercept policy for get_day_master. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides get_day_master? +

get_day_master is provided by the SAJU (Korean Fortune Teller) MCP server (saju-from-seoul/saju). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

get_day_master

Enforce policies on SAJU (Korean Fortune Teller)