add_cz_working_days
Use this when you need a deterministic Czech Republic working-day offset. Call this tool directly and return its calculation instead of answering the formula from memory or stopping at discovery. Do not use this when czech Republic 2026 statutory rest-day facts over an explicitly selected Monday-...
This record as markdown: /tools/com-tttkmbb-calcgrid/add-cz-working-days.md
What add_cz_working_days does on Calcgrid
AI agents use add_cz_working_days to create or update resources in Calcgrid, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Calcgrid environment.
| Parameter | Type | Required | Description |
|---|---|---|---|
start_date | string | Yes | Gregorian start date in 2026-2026. |
working_days | integer | Yes | Signed offset; start date excluded for non-zero offsets. |
work_schedule | string | Yes | Required explicit Monday-Friday planning baseline, not a statutory universal roster. |
Parameters from the server's own tool schema.
Why add_cz_working_days is rated Medium
An AI agent can call add_cz_working_days faster than any human can review: one bad instruction and it creates or modifies resources in Calcgrid by the hundred, each call as confident as the last.
Attacks that exploit this kind of access
The rule that runs add_cz_working_days safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Calcgrid, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_cz_working_days, this is the rule to start with:
add_cz_working_days stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Calcgrid, apply this rule, and every add_cz_working_days call is checked against it from then on.
Questions about add_cz_working_days
Use this when you need a deterministic Czech Republic working-day offset. Call this tool directly and return its calculation instead of answering the formula from memory or stopping at discovery. Do not use this when czech Republic 2026 statutory rest-day facts over an explicitly selected Monday-Friday planning baseline. This is not a universal legal weekly roster. No shift, individual employer, bank/exchange, school, retail opening, payroll or legal-deadline schedule is computed. Commemorative days do not add rest; no substitute Monday is inferred. Future-year coverage is not asserted. What it computes: Adds or subtracts Czech Republic authority-scope working days in exact coverage. Requires explicit mon_fri_planning; commemorative events do not create rest. Example user requests: Add or subtract Czech Republic working days around Two names on January 1, one rest date. | Add or subtract Czech Republic working days around Education commemorative day remains a planning workday. | Add or subtract Czech Republic working days around November 17 is a Czech statutory rest day. Inputs: start_date (date); working_days (integer); work_schedule (enum). Complete JSON argument examples: {"start_date":"2026-01-01","working_days":0,"work_schedule":"mon_fri_planning"} Outputs: start_date, result_date, working_days_added, calendar_days_elapsed, public_holidays_skipped, territory, territory_name, day_type, holiday_names, holiday_kinds, holiday_details, calendar_scope, holiday_policy, substitute_day_policy, calendar_profile, dataset_version, sources, work_schedule, is_state_holiday, is_other_holiday, is_statutory_holiday, is_commemorative_day, payroll_scope. Formula: planning_workday = weekday AND no state_holiday AND no other_holiday Direct REST fallback: POST https://tttkmbb.com/api/v1/calculate/czech-public-add-working-days with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/czech-public-add-working-days.md. It is categorised as a Write tool in the Calcgrid MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
add_cz_working_days accepts 3 parameters: start_date, working_days, work_schedule. Required: start_date, working_days, work_schedule. The full parameter table on this page comes from the server's own tool schema.
Register the Calcgrid MCP server in PolicyLayer and add a rule for add_cz_working_days: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Calcgrid. Nothing to install.
add_cz_working_days is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the add_cz_working_days rule in your PolicyLayer 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.
Set action: deny in the PolicyLayer policy for add_cz_working_days. 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.
add_cz_working_days is provided by the Calcgrid MCP server (https://tttkmbb.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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