Blog on Polyphon

The Polyphon Ecosystem: SDK, CLI, Obsidian Plugin, and VS Code Extension

Fri, 27 Mar 2026 02:23:00 -0400

The real product was never just the window on your screen.

The interesting part was the workflow behind it: a persistent composition of voices, a shared conversation, and a way to return to that conversation from wherever your work actually happens. Sometimes that is the desktop app. Sometimes it is a shell script. Sometimes it is the note you already have open in Obsidian.

Polyphon v0.13.1 Released

Fri, 27 Mar 2026 05:59:13 +0000

Improved

Internal tooling and dependency updates

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Polyphon v0.12.0 Released

Thu, 26 Mar 2026 21:35:58 +0000

What’s New

Each voice in a composition can now have its own YOLO mode override, letting you control autonomy per-voice rather than globally
Sessions now track their source (e.g. polyphon, poly CLI, Obsidian) and the sessions page has a filter dropdown to view sessions by source
The TCP API now exposes an OpenRPC 1.3 machine-readable spec via api.getSpec, accessible without authentication — useful for IDE integrations and tooling
The TCP API now includes a settings.getUserProfile endpoint
The API Settings page shows a spec discovery info block with the api.getSpec endpoint URL

Fixed

Polyphon v0.11.0 Released

Wed, 25 Mar 2026 02:52:50 +0000

Polyphon v0.11.0 is now available.

Improved

Release workflow no longer deletes old releases — all previous versions remain available for download
Community health files (contributing guide, code of conduct, security policy) polished for the public repo
LICENSE file renamed so GitHub correctly detects the Apache 2.0 license on the repository page

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Polyphon is Now Open Source

Tue, 24 Mar 2026 21:55:00 -0400

Polyphon is the kind of software that should be open to inspection.

As of today, Polyphon is open source on GitHub under the Apache 2.0 license.

I kept the repo private while I figured out the business question: subscription, one-time purchase, freemium, or something else. I never got a clear answer. What I got instead was a growing understanding that the pricing question was the wrong frame. The real question was about trust.

Polyphon v0.9.1 Released

Wed, 25 Mar 2026 00:43:45 +0000

Polyphon v0.9.1 is now available.

What’s New

poly sessions new --composition <id> creates a session from the terminal, with optional --name, --working-dir, and --sandbox flags
poly status now shows the poly and Polyphon versions, active client count, token fingerprint, remote access status, and per-provider CLI availability alongside API key status
The API’s getStatus response now includes active connection count and CLI tool availability per provider

Improved

make dev-poly builds and globally links the poly CLI for local development; make dev-poly-unlink removes it

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Polyphon v0.9.0 Released

Tue, 24 Mar 2026 22:30:17 +0000

Polyphon v0.9.0 is now available.

What’s New

New TCP API server — enable it in Settings → API Server to control Polyphon programmatically from the terminal or over a network
New poly CLI (@polyphon-ai/poly) — manage compositions, sessions, and conversations from the terminal; broadcast prompts, stream responses, search messages, and connect to remote Polyphon instances
API Server settings tab — configure the API server, view connection details, and manage authentication from within the app

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Polyphon v0.8.0 Released

Mon, 23 Mar 2026 23:17:11 +0000

Polyphon v0.8.0 is now available.

What’s New

MCP Server: Polyphon can now run as an MCP tool server, letting AI agents (Claude, Codex, etc.) orchestrate your compositions programmatically
Five MCP tools available: list compositions, create sessions, broadcast to all voices, ask a specific voice, and retrieve session history
Run headlessly with polyphon --mcp-server --headless for use in agent workflows, or enable the in-process server from Settings → MCP Server
New Settings tab to toggle the MCP server on/off with a live Running status indicator and connect instructions

Improved

Polyphon v0.7.1 Released

Mon, 23 Mar 2026 03:20:32 +0000

Polyphon v0.7.1 is now available.

Improved

Stability and reliability improvements

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Polyphon v0.7.0 Released

Mon, 23 Mar 2026 02:38:46 +0000

Polyphon v0.7.0 is now available.

What’s New

Full text search across all your sessions — open Search in the sidebar, type at least two characters, and results appear instantly with highlighted snippets showing which session and voice each match came from
Per-session search with Cmd+F — opens an inline search bar at the top of the message feed with match navigation (Enter / Shift+Enter / ↑↓) and a live counter showing your position (e.g. “1 of 3 messages”)
Click any global search result to jump directly to the matching message in its session

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Polyphon v0.6.0 Released

Mon, 23 Mar 2026 00:11:52 +0000

Polyphon v0.6.0 is now available.

What’s New

The local database is now encrypted at the whole-database level using SQLCipher AES-256. Every byte on disk — messages, sessions, compositions, API configs, and settings — is ciphertext, not just selected fields.

Improved

Replaced the previous field-level AES-256-GCM encryption with SQLCipher whole-database encryption. Indexes, metadata, and all table data are now encrypted uniformly, removing the distinction between “encrypted” and “unencrypted” columns.

⚠️ Data Migration Notice

Polyphon v0.5.0 Released

Sun, 22 Mar 2026 20:00:52 +0000

Polyphon v0.5.0 is now available.

What’s New

API voices (Anthropic, OpenAI, OpenAI-compatible) can now use filesystem tools — read files, write files, list directories, search file contents, fetch URLs, and more
Set a working directory on a session to give voices context about which files to work with
Enable sandboxing to restrict API voices to only access files within the working directory
The UI warns you when a session uses CLI voices with sandboxing enabled, since CLI voices run outside the sandbox
Export any session transcript as Markdown, JSON, or plain text from the session header menu

Fixed

Polyphon v0.4.1 Released

Sat, 21 Mar 2026 05:29:29 +0000

Polyphon v0.4.1 is now available.

Fixed

Switching from the Preview channel back to Stable now reliably shows the update banner, even if you were on a pre-release version newer than the current stable
App icon no longer has a stray dot in the center of the wave pattern

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Polyphon v0.3.1 Released

Fri, 20 Mar 2026 21:35:38 -0400

Polyphon v0.3.1 is now available.

What’s New

Each database migration is now applied atomically — the schema version bump and the migration itself commit together, so a crash mid-migration leaves the database in a clean, re-runnable state
Fixed an edge case where duplicate-column migrations could fail after a partial-migration crash

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Polyphon v0.3.0 Released

Fri, 20 Mar 2026 21:04:59 -0400

Polyphon v0.3.0 is now available — the first stable release in the 0.3 series.

This release graduates everything from the v0.3.0 alpha cycle into a stable build, including in-app auto-updates, encryption at rest, YOLO mode, and a significantly hardened security foundation.

What’s New

In-app auto-update powered by electron-updater with channel support (stable, alpha, beta)
Update download errors are now surfaced in the UI
app-update.yml is bundled into the packaged app as an extra resource
Pre-release flag is preserved correctly for alpha and beta GitHub releases
Added RELEASE_NOTES.md as the source of truth for GitHub release bodies

Fixes

Fixed updater error surfaces and allowPrerelease handling for pre-release installs

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Polyphon: Our First Public Release

Mon, 16 Mar 2026 02:27:00 -0400

AI workflows have become a juggling act.

You ask Claude for one pass, GPT for another, maybe run a local model for privacy or speed, then start copying ideas between tabs to see where they agree or sharpen each other. The models are useful. The workflow is not.

Polyphon is our attempt to fix that.

Today we’re shipping Polyphon — the first public alpha of a desktop application for orchestrating conversations between multiple AI voices simultaneously. Not multiple windows. Not a stack of pasted transcripts. One conversation, many voices, and a conductor in the middle.