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schedules

Destructive

Tasks that run by themselves. op=list: id, name, task, phones, at, days, tz, enabled and the runs it started last time. op=add: run task on devices at at on days, or every hour (every=hour), or only on demand (trigger=api); each firing starts runs like the run tool. op=run: start it now. op=toggle: pause or resume. op=delete: remove it.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "schedules"
  }
}

Input Schema

NameRequiredDescriptionDefault
atNoadd: time HH:MM (every=hour: only the minutes count)
opNolist (default) | add | run | toggle | deletelist
tzNoadd: IANA time zone of `at`, e.g. Europe/Berlin (ask the user; default UTC)UTC
daysNoadd: days 1-7 (1 = Monday), comma-separated; empty = every day
nameNoadd: a short name
taskNoadd: the task in plain words, like for run
everyNoadd: day (default) | hourday
devicesNoadd: devices, comma-separated or a JSON list
triggerNoadd: empty = by time | api = only when started with op=run
scheduleNorun / toggle / delete: schedule id from op=list
credentialsNoadd: saved logins "package/name", comma-separated

Output Schema

NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

A4.1/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already flag destructiveHint=true and openWorldHint=true, and the description is consistent with them ("op=delete: remove it"). Beyond the annotations it adds real behavioural context: that each firing spawns runs like the run tool, that toggle means pause/resume rather than delete, and that trigger=api makes a schedule manual-only. It does not say whether delete also wipes past run history or what permissions adding a schedule requires.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded purpose followed by a compact op-by-op breakdown, with no filler sentences. The telegraphic style is efficient for an 11-parameter multiplexed tool, though the semicolon-chained add clause takes a careful read.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For an 11-parameter multiplexed tool with an output schema, the description covers what each op needs and returns for list. Minor gaps: the list field enumeration mentions "phones" while the schema calls the parameter `devices`, and `credentials` is never mentioned in the description despite being an add-mode input.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so the schema already documents all 11 parameters, and the description mostly mirrors that per-op grouping. The one genuine addition is the relational synthesis in op=add — coupling `task`, `devices`, `at`, `days`, and the every=hour / trigger=api alternatives — which tells the agent how the fields combine. Baseline 3 is appropriate given the schema does the heavy lifting.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

Opens with a plain-language purpose ("Tasks that run by themselves") and then defines each of the five operations with a specific verb+object: list, add, run, toggle, delete. It also distinguishes itself from the sibling `run` tool by noting that "each firing starts runs like the run tool", so an agent can tell recurring schedules apart from one-off execution.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Guidance is given for each operation ("op=run: start it now", "op=toggle: pause or resume", "op=delete: remove it") and the add-mode options are enumerated with the selector in parentheses (every=hour, trigger=api). It stops short of explicit guidance on when to prefer a schedule over the sibling `run` tool, or of stating prerequisites such as needing credentials saved first.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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