Agent skill

SSML Script Generation

Generate production-ready SSML scripts for Google Cloud TTS

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Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/ssml-generation

SKILL.md

SSML Generation Skill

The Script Is the Blueprint

This skill handles the technical generation of SSML scripts that will be converted to voice audio.


Purpose

Transform journey concepts into properly-formatted SSML that produces natural, hypnotic voice output.


Critical Rules

Voice Rate: ALWAYS 1.0

xml
<!-- CORRECT: Always use rate="1.0" -->
<prosody rate="1.0" pitch="-2st">
  Text content here... <break time="2s"/>
</prosody>

<!-- WRONG: Never slow the rate -->
<prosody rate="0.85" pitch="-2st">
  This sounds robotic with Neural2 voices
</prosody>

Why: Google TTS Neural2 voices sound unnatural at reduced rates. Achieve pacing through <break> tags instead.


Speech Profiles by Section

Section Pitch Break Range Purpose
pre_talk 0st 700ms-1.0s Normal, grounded
induction -2st 1.0s-1.7s Calming, deeper
deepening -2st 1.7s-2.5s Very calm
journey -1st 1.0s-2.0s Immersive
helm_deep_trance -2st 2.0s-3.0s Deepest state
integration -1st 1.5s-2.0s Returning
emergence 0st 700ms-1.0s Alert, grounded

Break Duration Guidelines

Context Duration
Between phrases 700ms-1.0s
After sentences 1.0s-1.7s
Breathing cues 2.0s-3.0s
Visualization moments 3.0s-4.0s
Major transitions 4.0s-5.5s

Section Header Template

xml
<!-- ═══════════════════════════════════════════════════════════════ -->
<!-- SECTION: [SECTION_NAME] -->
<!-- Duration: [X] minutes | Pitch: [X]st | Purpose: [PURPOSE] -->
<!-- ═══════════════════════════════════════════════════════════════ -->

<prosody rate="1.0" pitch="[X]st">
    [Content...]
</prosody>
<break time="[X]s"/>

Sound Effect Markers

Place SFX cues on their own lines in script_production.ssml:

[SFX: Deep ceremonial bell tone, resonant, 4 seconds with natural decay]

<prosody rate="1.0" pitch="-2st">
  The sound fades into silence...
</prosody>

Important: SFX markers are stripped out for script_voice_clean.ssml before TTS generation.


Two-File System

File Purpose Contains SFX?
script_production.ssml Full production script Yes
script_voice_clean.ssml TTS-ready script No

Workflow:

  1. Write script_production.ssml with all SFX markers
  2. Generate script_voice_clean.ssml by stripping [SFX:...] lines
  3. Feed script_voice_clean.ssml to TTS

Section Duration Targets

Section Target Duration Word Count (~150 WPM)
Pre-Talk 2-3 min 300-450 words
Induction 4-5 min 600-750 words
Deepening 3-4 min 450-600 words
Journey 10-14 min 1500-2100 words
Helm (Deepest) 2-3 min 300-450 words
Integration 2-3 min 300-450 words
Emergence 2-3 min 300-450 words
Total (25 min) ~3,750 words

SSML Validation

Before TTS generation, always validate:

bash
python3 scripts/utilities/validate_ssml.py sessions/{session}/working_files/script.ssml

Common Validation Errors

Error Cause Fix
"Unclosed tag" Missing </prosody> Add closing tag
"Invalid break time" time="2" (missing unit) Use time="2s"
"Rate outside range" rate="2.5" Keep 0.5-2.0
"Unknown SSML tag" Using <emphasis> wrong Check supported tags

Integration with Tier 1

All SSML content must follow Tier 1 rules:

Tier 1 Skill SSML Requirement
hypnotic-language/validation/forbidden-patterns.md No forbidden phrases
hypnotic-language/emergence/reorientation.md Complete emergence sequence
symbolic-mapping/theological-filters/ Christian-safe imagery only

Command Reference

Generate Script

bash
/generate-script {session}

Strip SFX for TTS

bash
grep -v "^\[SFX:" script_production.ssml > script_voice_clean.ssml

Validate

bash
python3 scripts/utilities/validate_ssml.py sessions/{session}/working_files/script.ssml

Output Files

File Location
Production script sessions/{session}/working_files/script_production.ssml
Voice-clean script sessions/{session}/working_files/script_voice_clean.ssml

Related Resources

  • Skill: tier1-neural-core/hypnotic-language/ (language patterns)
  • Serena Memory: script_production_workflow
  • Serena Memory: voice_pacing_guidelines
  • Doc: prompts/hypnotic_dreamweaving_instructions.md

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