Pixir — an OTP-native, terminal-first coding agent.

Pixir is a local-first runtime built around a small spine: Pixir.Session -> Pixir.Turn -> Pixir.Provider -> Pixir.Tools. The append-only Pixir.Log is the source of truth, and front-ends observe canonical and ephemeral facts through Pixir.Events.

The public architecture is intentionally split across focused modules:

• Pixir.Conversation is the UI-agnostic multi-turn driver.
• Pixir.ACP modules present the same runtime over ACP/JSON-RPC stdio.
• Pixir.Skills loads progressive-disclosure instruction packages.
• Pixir.Subagents supervises delegated child Sessions.
• Pixir.Workflows runs deterministic dependency graphs over Subagents.
• Pixir.SessionTree projects read-only Session/Subagent trees from Logs.
• Pixir.Compaction records durable History checkpoints for bounded replay.

See CONTEXT.md for vocabulary and docs/adr/ for accepted architecture decisions.