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metaspartanmetaspartan/cybara/skills/phone/SKILL.md

phone

Skill38 starsChanged 5 months agoMITView on GitHub

Make phone calls on macOS using FaceTime

5 other projects use a version of this.

Adopted by

Most recently taken up by

The file

We split this skill into the rules it gives an agent

2 rules. 0 are common, 1 is distinctive, and 1 is very specific to this project.

  • 0

    Common

    Most of the 4 edited versions we read keep these.

  • 1

    Distinctive

    This author's own choices. Worth a look.

  • 1

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Use phone for agent-initiated calls.

    line 18
  2. Distinctive:

    Consider privacy implications when making calls through automated agents

    line 67

“Common” is measured: kept by at least 6 in 10 of the 4 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Phone

Make phone calls on macOS using FaceTime. This tool uses the native macOS tel: URL scheme to open FaceTime and initiate calls.

Requirements

  • macOS (the tool will return an error on other platforms)
  • FaceTime app installed and signed in

Tool

Use phone for agent-initiated calls.

Actions

  • call - Initiate a phone call to the specified number
  • check - Check if FaceTime is available on this Mac

Parameters

ParameterTypeRequiredDescription
actionstringYesAction to perform: "call" or "check"
phonestringFor call actionPhone number to call (E.164 format recommended, e.g., +15551234567)

Examples

{
  "action": "call",
  "phone": "+15551234567"
}
{
  "action": "check"
}

Response

The tool returns a JSON object with:

  • success: boolean indicating if the call was initiated successfully
  • callId: unique identifier for the call (if successful)
  • message: status message
  • method: method used ("facetime" for successful calls)

Notes

  • This tool only works on macOS
  • The call is initiated through FaceTime, which must be signed in with an Apple ID
  • The agent cannot control the call once initiated (no hangup, mute, etc.)
  • For tracked agent call flows, use the voice-call skill. It uses FaceTime for dialing and the macOS say voice for local spoken prompts, and also supports mode: "mock" for dry runs.
  • Cybara does not currently provide a managed carrier/VoIP backend like Twilio, Telnyx, or Plivo for this skill

Security Considerations

  • Phone calls are logged in the system
  • The tool requires user interaction to actually place the call (FaceTime must be opened)
  • Consider privacy implications when making calls through automated agents

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