Add resemble-detect skill to all-skills plugin

[devshahofficial]

Summary

Adds the resemble-detect skill to the all-skills plugin — a deepfake detection and media safety skill that lets agents detect AI-generated audio, images, video, and text using the Resemble AI platform.

What the skill does

• Deepfake detection across all 4 modalities (audio, image, video, text)
• Source tracing — identify which AI platform likely generated a given audio sample
• Watermarking — apply and detect invisible watermarks for provenance
• Speaker identity — voice profile matching and verification
• Media intelligence — emotion, language, abnormality, and voice metadata analysis

Core principle ("Iron Law")

The skill instructs agents to never declare media as real or fake without a completed detection job — every authenticity claim must be backed by a returned label, score, and status: "completed" from the Resemble API. No guessing, no speculation.

Changes

• New: plugins/all-skills/skills/resemble-detect/SKILL.md — full skill definition with decision tree, API reference, workflow templates, red flags, and error handling
• New: plugins/all-skills/skills/resemble-detect/LICENSE — Apache-2.0
• Updated: plugins/all-skills/.claude-plugin/plugin.json
  • Description bumped from 30 to 31 skills; added "media safety" to the topic list
  • Added resemble-detect to keywords

Test plan

• npm run validate — all validations passed (subagents & hooks)
• SKILL.md frontmatter includes name, category: analytics, description, license
• Skill folder follows the documented pattern: plugins/all-skills/skills/<skill-name>/SKILL.md
• plugin.json keywords array updated

Links

• Upstream skill repo: https://github.com/resemble-ai/detect-skill
• Platform: https://resemble.ai