[naffis]

What this PR does

Adds Wavemaker, Adwave's creative studio, so Grok Build can generate and edit images, video, music, voice, sound effects, ads and HTML5 banners and check them against platform specs.

• Plugin name: wavemaker
• Type: remote source
• Source URL + pinned SHA: https://github.com/AdwaveInc/wavemaker-plugins.git @ dc81e642f17dfe6d3222819fa8a937e920c2c110
• Homepage: https://wavemaker.io

The plugin is a remote MCP server (https://api.wavemaker.io/mcp, Streamable HTTP, OAuth with PKCE and dynamic client registration; no key in the package) plus one Agent Skill (skills/wavemaker/SKILL.md). Nothing runs locally.

Ownership

• I own this plugin or have the right to distribute it.
• The source repo is published under our official org (AdwaveInc, the publisher of Wavemaker), and this PR comes from the org's fork.

Checklist

• Added exactly one entry in .grok-plugin/marketplace.json (valid JSON, kebab-case name).
• Remote source pins a full 40-char lowercase commit sha, and that commit is public + reachable.
• Regenerated .grok-plugin/plugin-index.json (python3 scripts/generate-plugin-index.py).
• python3 scripts/validate-catalog.py passes locally.
• python3 scripts/generate-plugin-index.py --check passes locally.
• homepage + clear description set; keywords and domains are brand-scoped (wavemaker…, wavemaker.io).
• License is stated (MIT).

Security

• No curl | bash, remote-code download/exec, or postinstall RCE.
• No reading/exfiltration of secrets, tokens, .env, or env vars.
• No hooks, scripts or local binaries; the only component that reaches the network is the remote MCP server above.