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voice-preflight SKILL.md skillA

voice-preflight from calle-ai/awesome-phone-call-agents is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add calle-ai/awesome-phone-call-agents/voice-preflight@git:20260807.9edd2aa

Pins git:20260807.9edd2aa in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: calle-ai/awesome-phone-call-agents
Path: skills/voice-preflight/SKILL.md
Versions recorded: 1
Latest version: git:20260807.9edd2aa, committed Aug 7, 2026
Size: 3,528 bytes
Repository stars: 112
License: MIT

Hear a CALL-E phone call task spoken by your own text-to-speech provider before a real person does, then refuse a script whose critical line would not survive being spoken.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Voice Preflight

CALL-E speaks your `task` text to a person on the phone. You cannot hear it
first. The platform exposes no voice or provider field, so the only way to
know how a script sounds is to render the same text yourself.

This skill covers doing that with a provider you already pay for, then gating the
call on what the audio and the text actually show.

## When to use it

Before any call whose success depends on a specific string reaching the callee.
That includes a one-time code a person has to read back, a callback number, a
disclosure a rule requires you to speak, an amount, plus a reference somebody will
repeat to you. Also use it whenever a `task` has been edited, because the failure
this catches is a line disappearing during a tidy-up.

Skip it for a call whose script carries no such string. A general enquiry has
nothing to survive verbatim.

## The procedure

1. **Declare what must survive.** Write the script file with a `locked` entry per
   critical line, each with the exact `text` and a `reason`. The reason is quoted
   back in the refusal, so it travels with the failure instead of living in
   somebody's head.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add calle-ai/awesome-phone-call-agents/voice-preflight@sha256:39400c5baa7fcd8f

The line at the top of this page pins the label git:20260807.9edd2aa, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_yda4c4jyanhyfs4n.svg)](https://markdownregistry.com/a/art_yda4c4jyanhyfs4n)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Aug 7, 2026.

version	committed	commit	size	audit
git:20260807.9edd2aa latest	2026-08-07	9edd2aa	3,528 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (3528 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

calle-ai/awesome-phone-call-agents · 112 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_yda4c4jyanhyfs4n
GET https://markdownregistry.com/api/v1/resolve?ref=calle-ai/awesome-phone-call-agents/voice-preflight
GET https://markdownregistry.com/api/v1/blob/39400c5baa7fcd8fa3566b975c8db1c5ab9bc8dfcdc25fee718398301ae49b85

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.