Cerevisor Harness (Alpha)

Six things the Cerevisor harness gives you

Visual skill allocation

Drag any skill from your library onto any agent on the canvas. No config files, no glue code. Skills attach where you point, and the orchestrator validates them against your provider before the run.

Multi-model orchestration

Run each agent on the model that fits the job. Anthropic for the architect, Ollama for the local extractor, an OpenAI-compatible endpoint for the writer, Codex CLI for the coder, all in one workflow, in one run.

Full context control

See exactly what every agent receives before it runs. Inject upstream outputs, drop .md files into input zones, scope folder context per agent, and pre-flight skills. The context window is yours, not the model's guess.

Per-run auditability

Every tool call, every approval, every model decision lands in an NDJSON audit trail on your machine. Replay any run, diff it against last week's, and answer 'why did the agent do that?' from data, not memory.

Iterate workflows without rewrites

Loop and Enhance refines a node against its own output. The checkpointed session store lets you resume from where a run failed. In-app retros surface what to change next. Tune the version that works without starting over.

Strategic command center

Your worlds, your scheduled runs, and your active agents laid out on one canvas as a single strategic view. See what is running, what is queued, what just shipped, and what needs your attention.

Bring your own model

• Anthropic: Claude API. Bring your sk-ant- key.
• Ollama: Local, free, offline. No key required.
• OpenAI-compatible: Together, Groq, Fireworks, OpenRouter, vLLM, LM Studio, and any /v1/chat/completions endpoint.
• Codex CLI: OpenAI's official codex binary as a sidecar. ChatGPT subscription auth or API-key auth.
• Cursor agent: Local on every tier. Cloud Cursor on Pro.

System requirements

• Windows: Windows 10 or later, 64-bit. 8 GB RAM recommended. Code-signed installer.
• macOS: Coming next.
• Linux: AppImage in internal QA.

What stays on your machine

• Your prompts, agent runs, MCP traffic, generated outputs, and provider API keys never reach Cerevisor.
• Calls to Anthropic, Ollama, or any OpenAI-compatible endpoint go directly from your machine to the provider you configured.
• Workflows live as plain files (.cerevisor and .cerevisor-world) you can version, share, and audit.
• Local-only analytics about skill suggestions stay in a SQLite store on your disk.
• License validation pings the Lemon Squeezy licensing API with your account email and a one-way device hash to enforce the per-seat device limit. That is the only outbound call Cerevisor itself makes.

Pricing during the alpha

7-day full Pro trial on every install, no card required. Founding-user pricing locks in for as long as your subscription stays active when you subscribe during the alpha.

Free: $0 (free tier subject to terms; we may change features with 30 days notice) for the canvas, manual editing, all providers shared globally, up to 2 workflows and 2 saved worlds.

Pro: $19/mo or $190/yr unlocks unlimited workflows, MCP, the Scheduler, Loop and Enhance, the Chat Builder, the Workshop editor, web search, the ability to trigger Cursor's cloud agents from Cerevisor (your Cursor account, your billing), and per-agent providers. 3 devices per license. 14-day money-back request window on first purchase, processed by Lemon Squeezy.

What founding-user alpha means

Real software, shipped today

The harness runs on Windows now. Mac and Linux builds are next. Every feature on this page is in the build you download today, not on a roadmap.

Founding-user pricing, locked for life

Subscribe during the alpha and your founding price stays for as long as your subscription is active.

Real money-back request window

7-day full Pro trial with no card required. First paid purchase eligible for a full refund within 14 days, processed by Lemon Squeezy.

Direct line to the team

Alpha members get a direct path to the team for bug reports and feature requests.

Expect rough edges

It is an alpha. Some animations stutter. Your workflows and provider keys stay safe regardless.