# add_ee_working_days

Use this when you need a deterministic Estonia 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 estonia 2026 statutory rest facts over an explicitly selected Monday-Friday planning baseline. Sixteen national-importance dates do not add rest. Four dates carry a conditional three-hour shortening rule but still count as one planning working date, not a half-day or full-day holiday. No substitute or bridge is invented. Individual shifts, actual working hours, opening hours, employer/local/sector/school/bank schedules, replacement weekly rest, payroll, legal deadlines and future years are not computed. What it computes: Adds or subtracts Estonia authority-scope working days in exact coverage. Requires explicit mon_fri_planning; national-importance dates and three-hour shortening never add full-day rest. Example user requests: Add or subtract Estonia working days around Independence Day is statutory rest. | Add or subtract Estonia working days around Shortened working date is not full-day rest. | Add or subtract Estonia working days around National importance does not imply rest. 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_statutory_non_working_day, is_day_of_national_importance, is_shortened_workday, statutory_shortening_hours, shortening_scope, working_hours_scope, personal_roster_scope, payroll_scope. Formula: planning_workday = weekday AND no statutory_full_day_rest_event; shortened working dates count once Direct REST fallback: POST https://tttkmbb.com/api/v1/calculate/estonia-public-add-working-days with the same JSON input fields. Do not guess another /api/* path. Docs: https://tttkmbb.com/everyday/estonia-public-add-working-days.md

Agent View of the PolicyLayer registry record for `add_ee_working_days`. HTML page: https://policylayer.com/tools/com-tttkmbb-calcgrid/add-ee-working-days

## Facts

- Tool: `add_ee_working_days`
- Server: Calcgrid (`https://tttkmbb.com/mcp`) — https://policylayer.com/tools/com-tttkmbb-calcgrid.md
- Homepage: https://github.com/https://tttkmbb.com/mcp
- Risk category: Write (Medium risk)
- Registry record: grade D, identity unverified
- Server auth posture: open
- Server CORS policy: *
- Server rate-limited: no
- Parameters: 3 (3 required)
- Recommended policy verdict: Rate-limited

## Parameters

| 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 an individual legal roster. |

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": "add_ee_working_days",
    "arguments": {
      "start_date": "<start_date>",
      "working_days": 0,
      "work_schedule": "<work_schedule>"
    }
  }
}
```

## Why add_ee_working_days is rated Medium

An AI agent can call add_ee_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.

## Use case

AI agents use add_ee_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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Calcgrid:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_ee_working_days": {
      "limits": [
        {
          "counter": "add_ee_working_days_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

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- …and 222 more: https://policylayer.com/tools/com-tttkmbb-calcgrid.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`

---

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