feat: add togetherai plugin

[saoudrizwan]

Together AI

Adds a Cline plugin for Together AI workflows across inference, retrieval, evaluation, fine-tuning, media generation, remote execution, and infrastructure.

The plugin bundles 12 skills:

• together-chat-completions
• together-batch-inference
• together-embeddings
• together-evaluations
• together-fine-tuning
• together-images
• together-video
• together-audio
• together-sandboxes
• together-dedicated-endpoints
• together-dedicated-containers
• together-gpu-clusters

Each skill includes local references and example Python or TypeScript scripts for the relevant Together AI workflow. The plugin intentionally does not register MCP servers and does not make network calls during install.

Cline Primitives

• Skills: route Cline toward the right Together AI workflow and provide detailed reference/script material for implementation.
• Rule: adds a Together AI safety rule covering paid API calls, generated media, remote code execution, fine-tuning jobs, endpoints, containers, clusters, storage, API keys, datasets, prompts, and model outputs.

Requirements

• TOGETHER_API_KEY is required before running Together AI API examples.
• Python examples generally expect together>=2.0.0.
• TypeScript examples generally expect together-ai.
• Some workflows require additional tools or permissions, such as external provider keys for evaluations, Jig/Sprocket for dedicated containers, or Kubernetes/Slurm/Together Cloud permissions for GPU clusters.

Trust Boundaries

Together AI workflows can spend credits, upload datasets and models, generate media, execute remote code, and provision billable infrastructure. The bundled examples stay inert at install time, and the higher-risk examples now require explicit cost acknowledgement before starting fine-tuning or GPU cluster creation.

External evaluation provider tokens are passed by environment variable name rather than raw CLI token values, reducing shell history and process-list leakage.

[saoudrizwan]

Closing this plugin PR for now because this cleanup pass is limiting plugin marketplace PRs to plugins that only bundle MCP servers and/or skills. This PR includes additional plugin primitive(s): rules.

Those primitives may still be useful, but we are keeping this batch scoped to MCP and skill distribution.