Pi 0.84.2

ChangelogRelease notesAug 14, 2026Pi 0.84.2GitHub releasenpmNew Features

Fullscreen transcript search — Search and navigate matches in fullscreen mode. See TUI Fullscreen Viewport. Configurable default tools — Choose startup built-in tools globally or per project. See Tools. Configurable fullscreen exit output — Print the transcript or only a resume hint on exit. See Interactive Mode.

Added

Added per-block fullscreen mouse expansion for thinking sections and tool results, while preserving drag selection and link activation. Added fullscreen transcript search with Ctrl+Shift+F, incremental match highlighting, configurable search match theme colors, and next/previous navigation with Enter/Ctrl+G and Shift+Enter/Ctrl+Shift+G. Added experimental strict JSON-schema constrained sampling for the default read, bash, edit, and write tools under PI_EXPERIMENTAL=1. Added a fullscreen exit output setting to choose between printing the final transcript and only a session resume hint. Added the defaultTools setting for configuring the initial built-in tool selection globally or per project. Added --use-theme <name[/name]> to choose an initial per-run interactive theme without changing saved settings (#7722 by @rwachtler). Added expandPromptTemplates to extension pi.sendUserMessage() options for explicitly dispatching commands and expanding skills and prompt templates. See pi.sendUserMessage() (#7857 by @mrexodia). Added inherited createGatewayBindingFetch() for routing Cloudflare AI Gateway requests through a Workers AI binding without an API token (#7901 by @Maximo-Guk). Added inherited AssistantMessage.endTurn to preserve OpenAI Codex's terminal end_turn signal for diagnostics (#7766). Added inherited unbound single-line transcript scrolling actions for fullscreen mode. See TUI Fullscreen Viewport (#7903 by @midastruth).

Changed

Changed inherited Kimi Coding requests to use pi's runtime User-Agent header. Replaced the inherited Mistral SDK transport with a native Chat Completions HTTP stream, eliminating its generated client and schema runtime overhead. Documented the generic AI_AGENT=pi process marker and how it differs from PI_CODING_AGENT=true (#7747). Changed inherited OpenAI Responses deferred tool loading to prefer message-anchored additional_tools where supported while retaining tool-search and top-level fallbacks (#7709). Reduced inherited fullscreen rendering allocation churn by painting full-width layout rows directly instead of recompositing them on every frame.

Fixed

Fixed root Markdown files such as README.md and AGENTS.md in skill directories being reported as broken skills unless they declare valid skill frontmatter (#7805). Fixed single-object edit tool inputs failing validation by accepting them as one-edit arrays in both coding-agent and harness edit tools (#7835). Fixed managed-tool downloads delaying TUI startup and hiding diagnostics in fullscreen mode by mounting the TUI first and showing download progress and warnings inside it. Fixed opening a model selector immediately after startup cancelling and restarting the in-progress model catalog refresh. Fixed inherited GitHub Copilot login triggering API rate limits while enabling model policies by limiting concurrent policy updates (#6187). Fixed fullscreen transcript search snapping back to the current match during manual scrolling and fragmented mouse input leaking into the search query. Fixed inherited required LaTeX arguments starting on a new line being parsed as empty (#7760). Updated the transitive nanoid development dependency to address a denial-of-service vulnerability. Fixed fallback rendering for extension tool results to collapse long output and honor tool expansion (#7979). Fixed JSON and RPC message_update events dropping cumulative usage during streaming. See JSON Event Mode and RPC message_update (#7982 by @christianklotz). Fixed pi.sendMessage(..., { triggerTurn: false }) steering an active run instead of only recording the custom message (#8022 by @cristinaponcela). Fixed the defaultTools setting dropping extension and SDK custom tools when selecting built-in defaults. Fixed the subagent example rejecting YAML array syntax for the tools frontmatter field (#7598 by @alexsavio). Fixed the subagent example dropping parent session model, thinking, and tool configuration (#7897 by @virtuald). Fixed custom system prompts concatenating the current working directory with later appended prompt content (#7887 by @distributedlock). Fixed inherited OpenAI Responses function and custom tool calls losing namespaces during streaming, proxying, and replay (#7709). Fixed inherited upstream request buffer failures not triggering automatic assistant retries. Fixed inherited built-in and custom DeepSeek API models sending output limits through an unsupported field. Fixed inherited Amazon Bedrock replay rejecting tool arguments that contain empty object keys while preserving all valid nested values (#7882 by @muyiyr). Fixed inherited DeepSeek compatibility detection for base URLs whose hostname contains uppercase letters (#7933 by @yearth). Fixed inherited Google Generative AI and Vertex AI responses with tool calls incorrectly treating output-limit or provider-error stops as normal tool use (#8059). Fixed inherited fullscreen mouse drag selection and OSC 8 link activation in terminals that report generic SGR mouse release button codes (#7963). Fixed inherited focused fullscreen overlays not receiving mouse wheel or viewport scroll keys such as PageUp and PageDown (#7894). Fixed inherited LaTeX control spaces split across line endings causing complete expressions to fall back to raw source. Fixed split Alt+Enter input over SSH being misread as Escape, added PI_TUI_ESC_TIMEOUT for high-latency terminals, and limited that timeout to lone Escape input (#7899 by @powerfooI). Fixed inherited idle fullscreen sessions repainting and clearing text selection when the terminal loses focus (#7892 by @terrorobe). Fixed fullscreen selection copy to use the host clipboard and report failure instead of claiming success when OSC 52 is unsupported (#8110 by @Panoplos).