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Release notes

Pi 0.58.0

New version of pi. Download from npm or view release on GitHub.

New Features

  • Claude Opus 4.6, Sonnet 4.6, and related Bedrock models now use a 1M token context window (up from 200K) (#2135 by @mitsuhiko).
  • Extension tool calls now execute in parallel by default, with sequential tool_call preflight preserved for extension interception.
  • GOOGLE_CLOUD_API_KEY environment variable support for the google-vertex provider as an alternative to Application Default Credentials (#1976 by @gordonhwc).
  • Extensions can supply deterministic session IDs via newSession() (#2130 by @zhahaoyu).

Added

  • Added GOOGLE_CLOUD_API_KEY environment variable support for the google-vertex provider as an alternative to Application Default Credentials (#1976 by @gordonhwc)
  • Added custom session ID support in newSession() for extensions that need deterministic session paths (#2130 by @zhahaoyu)

Changed

  • Changed extension tool interception to use agent-core beforeToolCall and afterToolCall hooks instead of wrapper-based interception. Tool calls now execute in parallel by default, extension tool_call preflight still runs sequentially, and final tool results are emitted in assistant source order.
  • Raised Claude Opus 4.6, Sonnet 4.6, and related Bedrock model context windows from 200K to 1M tokens (#2135 by @mitsuhiko)

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Release notes

Pi 0.57.1

New version of pi. Download from npm or view release on GitHub.

New Features

  • Tree branch folding and segment-jump navigation in /tree, with Ctrl+←/Ctrl+→ and Alt+←/Alt+→ shortcuts while ←/→ and Page Up/Page Down remain available for paging. See docs/tree.md and docs/keybindings.md.
  • session_directory extension event for customizing session directory paths before session manager creation. See docs/extensions.md.
  • Digit keybindings (0-9) in the TUI keybinding system, including modified combos like ctrl+1. See docs/keybindings.md.

Added

  • Added /tree branch folding and segment-jump navigation with Ctrl+←/Ctrl+→ and Alt+←/Alt+→, while keeping ←/→ and Page Up/Page Down for paging (#1724 by @Perlence)
  • Added session_directory extension event that fires before session manager creation, allowing extensions to customize the session directory path based on cwd and other factors. CLI --session-dir flag takes precedence over extension-provided paths (#1730 by @hjanuschka).
  • Added digit keys (0-9) to the keybinding system, including Kitty CSI-u and xterm modifyOtherKeys support for bindings like ctrl+1 (#1905)

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Release notes

Pi 0.57.0

New version of pi. Download from npm or view release on GitHub.

New Features

  • Extensions can intercept and modify provider request payloads via before_provider_request. See docs/extensions.md#before_provider_request.
  • Extension UIs can use non-capturing overlays with explicit focus control via OverlayOptions.nonCapturing and OverlayHandle.focus() / unfocus() / isFocused(). See docs/extensions.md and ../tui/README.md.
  • RPC mode now uses strict LF-only JSONL framing for robust payload handling. See docs/rpc.md.

Breaking Changes

  • RPC mode now uses strict LF-delimited JSONL framing. Clients must split records on \n only instead of using generic line readers such as Node readline, which also split on Unicode separators inside JSON payloads (#1911)

Added

  • Added before_provider_request extension hook so extensions can inspect or replace provider payloads before requests are sent, with an example in examples/extensions/provider-payload.ts
  • Added non-capturing overlay focus control for extension UIs via OverlayOptions.nonCapturing and OverlayHandle.focus() / unfocus() / isFocused() (#1916 by @nicobailon)

Changed

  • Overlay compositing in extension UIs now uses focus order so focused overlays render on top while preserving stack semantics for show/hide behavior (#1916 by @nicobailon)

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Release notes

Pi 0.56.3

New version of pi. Download from npm or view release on GitHub.

New Features

  • claude-sonnet-4-6 model available via the google-antigravity provider (#1859)
  • Custom editors can now define their own onEscape/onCtrlD handlers without being overwritten by app defaults, enabling vim-mode extensions (#1838)
  • Shift+Enter and Ctrl+Enter now work inside tmux via xterm modifyOtherKeys fallback (docs/tmux.md, #1872)
  • Auto-compaction is now resilient to persistent API errors (e.g. 529 overloaded) and no longer retriggers spuriously after compaction (#1834, #1860)

Added

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Release notes

Pi 0.56.2

New version of pi. Download from npm or view release on GitHub.

New Features

  • GPT-5.4 support across openai, openai-codex, azure-openai-responses, and opencode, with gpt-5.4 now the default for openai and openai-codex (README.md, docs/providers.md).
  • treeFilterMode setting to choose the default /tree filter mode (default, no-tools, user-only, labeled-only, all) (docs/settings.md, #1852 by @lajarre).
  • Mistral native conversations integration with SDK-backed provider behavior, preserving Mistral-specific thinking and replay semantics (README.md, docs/providers.md, #1716).

Added

  • Added gpt-5.4 model availability for openai, openai-codex, azure-openai-responses, and opencode providers.
  • Added gpt-5.3-codex fallback model availability for github-copilot until upstream model catalogs include it (#1853).
  • Added treeFilterMode setting to choose the default /tree filter mode (default, no-tools, user-only, labeled-only, all) (#1852 by @lajarre).

Changed

  • Updated the default models for the openai and openai-codex providers to gpt-5.4.

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Release notes

Pi 0.56.1

New version of pi. Download from npm or view release on GitHub.

Fixed

  • Fixed extension alias fallback resolution to use ESM-aware resolution for jiti aliases in global installs (#1821 by @Perlence)
  • Fixed markdown blockquote rendering to isolate blockquote styling from default text style, preventing style leakage.

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Release notes

Pi 0.56.0

New version of pi. Download from npm or view release on GitHub.

New Features

  • Added OpenCode Go provider support with opencode-go model defaults and OPENCODE_API_KEY environment variable support (docs/providers.md, #1757).
  • Added branchSummary.skipPrompt setting to skip branch summarization prompts during tree navigation (docs/settings.md, #1792).
  • Added gemini-3.1-flash-lite-preview fallback model availability for Google provider catalogs when upstream model metadata lags (README.md, #1785).

Breaking Changes

  • Changed scoped model thinking semantics. Scoped entries without an explicit :<thinking> suffix now inherit the current session thinking level when selected, instead of applying a startup-captured default.
  • Moved Node OAuth runtime exports off the top-level @mariozechner/pi-ai entry. OAuth login and refresh must be imported from @mariozechner/pi-ai/oauth (#1814).

Added

  • Added branchSummary.skipPrompt setting to skip the summary prompt when navigating branches (#1792).
  • Added OpenCode Go provider support with opencode-go model defaults and OPENCODE_API_KEY environment variable support (#1757).
  • Added gemini-3.1-flash-lite-preview fallback model availability in provider catalogs when upstream catalogs lag (#1785).

Changed

  • Updated Antigravity Gemini 3.1 model metadata and request headers to match upstream behavior.

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Release notes

Pi 0.55.4

New version of pi. Download from npm or view release on GitHub.

New Features

  • Runtime tool registration now applies immediately in active sessions. Tools registered via pi.registerTool() after startup are available to pi.getAllTools() and the LLM without /reload (docs/extensions.md, examples/extensions/dynamic-tools.ts, #1720).
  • Tool definitions can customize the default system prompt with promptSnippet (Available tools) and promptGuidelines (Guidelines) while the tool is active (docs/extensions.md, #1720).
  • Custom tool renderers can suppress transcript output without leaving extra spacing or empty transcript footprint in interactive rendering (docs/extensions.md, #1719).

Added

  • Added optional promptSnippet to ToolDefinition for one-line entries in the default system prompt's Available tools section. Active extension tools appear there when registered and active (#1237 by @semtexzv).
  • Added optional promptGuidelines to ToolDefinition so active tools can append tool-specific bullets to the default system prompt Guidelines section (#1720).

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Release notes

Pi 0.55.2

New version of pi. Download from npm or view release on GitHub.

New Features

  • Extensions can dynamically remove custom providers via pi.unregisterProvider(name), restoring any built-in models that were overridden, without requiring /reload (docs).
  • pi.registerProvider() now takes effect immediately when called outside the initial extension load phase (e.g. from a command handler), removing the need for /reload after late registrations.

Added

  • pi.unregisterProvider(name) removes a dynamically registered provider and its models from the registry without requiring /reload. Built-in models that were overridden by the provider are restored (#1669 by @aliou).

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Release notes

Pi 0.55.1

New version of pi. Download from npm or view release on GitHub.

New Features

  • Added offline startup mode via --offline (or PI_OFFLINE) to disable startup network operations, with startup network timeouts to avoid hangs in restricted or offline environments.
  • Added gemini-3.1-pro-preview model support to the google-gemini-cli provider (#1599 by @audichuang).

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Release notes

Pi 0.55.0

New version of pi. Download from npm or view release on GitHub.

Breaking Changes

  • Resource precedence for extensions, skills, prompts, themes, and slash-command name collisions is now project-first (cwd/.pi) before user-global (~/.pi/agent). If you relied on global resources overriding project resources with the same names, rename or reorder your resources.
  • Extension registration conflicts no longer unload the entire later extension. All extensions stay loaded, and conflicting command/tool/flag names are resolved by first registration in load order.

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Release notes

Pi 0.54.2

New version of pi. Download from npm or view release on GitHub.

Fixed

  • Fixed .pi folder being created unnecessarily when only reading settings. The folder is now only created when writing project-specific settings.
  • Fixed extension-driven runtime theme changes to persist in settings so /settings reflects the active currentTheme after ctx.ui.setTheme(...) (#1483 by @ferologics)
  • Fixed interactive mode freezes during large streaming write tool calls by using incremental syntax highlighting while partial arguments stream, with a final full re-highlight after tool-call arguments complete.

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Release notes

Pi 0.54.1

New version of pi. Download from npm or view release on GitHub.

Fixed

  • Externalized koffi from bun binary builds, reducing archive sizes by ~15MB per platform (e.g. darwin-arm64: 43MB -> 28MB). Koffi's Windows-only .node file is now shipped alongside the Windows binary only.

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Release notes

Pi 0.54.0

New version of pi. Download from npm or view release on GitHub.

Added

  • Added default skill auto-discovery for .agents/skills locations. Pi now discovers project skills from .agents/skills in cwd and ancestor directories (up to git repo root, or filesystem root when not in a repo), and global skills from ~/.agents/skills, in addition to existing .pi skill paths.

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Release notes

Pi 0.53.1

New version of pi. Download from npm or view release on GitHub.

Changed

  • Added Gemini 3.1 model catalog entries for all built-in providers that currently expose it: google, google-vertex, opencode, openrouter, and vercel-ai-gateway.
  • Added Claude Opus 4.6 Thinking to the google-antigravity model catalog.

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Release notes

Pi 0.53.0

New version of pi. Download from npm or view release on GitHub.

Breaking Changes

  • SettingsManager persistence semantics changed for SDK consumers. Setters now update in-memory state immediately and queue disk writes. Code that requires durable on-disk settings must call await settingsManager.flush().
  • AuthStorage constructor is no longer public. Use static factories (AuthStorage.create(...), AuthStorage.fromStorage(...), AuthStorage.inMemory(...)). This breaks code that used new AuthStorage(...) directly.

Added

  • Added SettingsManager.drainErrors() for caller-controlled settings I/O error handling without manager-side console output.
  • Added auth storage backends (FileAuthStorageBackend, InMemoryAuthStorageBackend) and AuthStorage.fromStorage(...) for storage-first auth persistence wiring.
  • Added Anthropic claude-sonnet-4-6 model fallback entry to generated model definitions.

Changed

  • SettingsManager now uses scoped storage abstraction with per-scope locked read/merge/write persistence for global and project settings.

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Release notes

Pi 0.52.12

New version of pi. Download from npm or view release on GitHub.

Added

  • Added transport setting ("sse", "websocket", "auto") to /settings and settings.json for providers that support multiple transports (currently openai-codex via OpenAI Codex Responses).

Changed

  • Interactive mode now applies transport changes immediately to the active agent session.
  • Settings migration now maps legacy websockets: boolean to the new transport setting.

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Release notes

Pi 0.52.11

New version of pi. Download from npm or view release on GitHub.

Added

  • Added MiniMax M2.5 model entries for minimax, minimax-cn, openrouter, and vercel-ai-gateway providers, plus minimax-m2.5-free for opencode.

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