livepilot

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An agentic production system for Ableton Live 12.
467 tools. 56 domains. Device atlas. Plan-aware Splice integration. Auto-composition. Spectral perception. Technique memory. Drum-rack pad builder. Live dead-device detection.

[!NOTE] LivePilot works with any MCP client — Claude Code, Claude Desktop, Cursor, VS Code, Windsurf. All tools execute on Ableton's main thread through the official Live Object Model API. Live-session mutations (clips, devices, mixer, arrangement) route through Ableton's undo stack. Side effects that touch state outside the Live project — Splice downloads, memory/ledger writes, installer actions, atlas scans, filesystem writes — persist beyond undo.

[!WARNING] LivePilot is actively in development. Tools, behavior, and APIs change frequently between versions. Pin to a specific version for stable work. Known gaps and in-progress features are documented in each release's CHANGELOG entry.

What's New in v1.27.3

A deep-review remediation release — ~150 fixes across two audit campaigns, no change to the tool surface (467 tools / 56 domains):

• Event-loop blocking eliminated tree-wide — every remaining blocking call in async tool paths (composer apply executors, the shared plan-step executor, preview/experiment paths, ~80 sites in 13 files) now offloads to a worker thread; a repo-wide AST regression guard keeps it that way. Long composes no longer freeze concurrent tools or the analyzer bridge.
• Atlas scans no longer truncate — library scans previously capped each category at 1,000 entries alphabetically (most drum one-shots were unreachable); the cap is now 25,000 with per-category truncation flags and rescan warnings. Run scan_full_library(force=True) once to rebuild your atlas.
• Splice self-heals — a Splice desktop restart no longer silently turns every search into fake "0 results"; the client marks itself degraded and reconnects on the next call.
• Safer state — cached preview/wonder plans carry a session fingerprint and refuse to replay against a session that changed shape; persisted taste/project stores back up before any reset.
• Stronger release gates — the MCPB bundle, .amxd freeze content, and Python 3.11 Remote Script compatibility are now all CI-enforced.
• Python 3.12 floor for the MCP server (numpy ≥2.5 / scipy ≥1.18); the Remote Script stays 3.11-compatible for Ableton's embedded Python.
• v1.27.1 fixed 35 issues from a deep audit and restored tools that had silently broken (augment_with_samples, get_composition_plan, propose_composer_branches, check_clip_key_consistency, compare_phrase_renders), plus recursive installed-plugin scanning.
• v1.27.0 added two read-only Live 12.4 capability-probe tools (probe_link_audio, probe_stem_workflow).

Full details in the CHANGELOG.

What LivePilot Does

Most MCP servers are tool collections — they execute commands. LivePilot is an agentic production system. It has eight layers that work together: