- Improved model resolution to accept pre-serialized settings for better performance.
- Enhanced system prompt guidance for position-addressed vs content-addressed file edits.
- Added comprehensive edit tool documentation with bash alternatives comparison.
- Refactored model resolver to accept optional settings parameters for role resolution.
- Added Vercel AI Gateway model fetching with 100+ model configurations.
- Updated Amazon Bedrock models with new Claude 4.5 EU variants.
- Added GPT-5.2-codex model across OpenAI, GitHub Copilot, and OpenCode providers.
- Changed MiniMax models to use anthropic-messages API format.
- Added thinkingFormat support to ZAI provider models.
- Improved LSP diagnostic output by stripping clippy URLs and noise.
- Replaced detailed Codex system instructions with simplified pi assistant instructions that reference internal documentation via pi-internal:// protocol.
- Reduced Codex instructions from 321 lines to 11 lines by moving detailed guidance to referenced documentation.
- Changed assistant identity from 'coding agent running in opencode' to 'pi, an expert coding assistant'.
- Added documentation references for creating custom models, providers, extensions, themes, skills, and TUI components.
- Expanded bash tool guidance to explicitly list appropriate use cases including file operations, build commands, and process management.
- Reframed bash guidance from negative-only to showing both appropriate and inappropriate uses.
- Fixed stale diagnostic results by tracking diagnostic versions before file sync operations.
- Fixed race condition where LSP diagnostics could return outdated results after file modifications.
Provider additions:
- Added Amazon Bedrock provider with bedrock-converse-stream API
- Added MiniMax provider with OpenAI-compatible API
- Added EU cross-region inference model variants for Bedrock
Provider fixes:
- Fixed Gemini CLI retries with header parsing and empty stream retry logic
- Fixed Bedrock tool call transforms via transformMessages
- Fixed z.ai thinking/reasoning params
- Fixed OpenRouter+Anthropic cache control
- Fixed OpenAI responses timeout and service tier options
- Fixed tool call ID normalization for cross-provider switches
- Fixed thought signature validation for Google providers
- Fixed prompt cache key using session ID
TUI improvements:
- Added OverlayOptions API with CSS-like positioning (SizeValue, percentages)
- Added OverlayHandle for programmatic visibility control
- Added visible callback for responsive overlays
- Added pad parameter to truncateToWidth
- Added pageUp/pageDown key support
- Fixed numbered list items showing 1. when code blocks break continuity
- Fixed overlay width overflow crash with complex ANSI sequences
- Fixed light theme colors for WCAG AA compliance
Coding agent fixes:
- Fixed /new command to create new session file
- Fixed session selector to stay open when folder has no sessions
- Added session header emission in JSON print mode
- Added queued message hint with theme.tree.hook
- Exported highlightCode and getLanguageFromPath for extensions
Also renamed transorm-messages.ts to transform-messages.ts (typo fix)
- Migrated image processing library from wasm-vips to Photon (Rust/WASM) for improved performance and reliability.
- Added graceful fallback for failed image resizing operations, allowing the system to use original images when WASM processing fails.
- Added error handling for image conversion failures in interactive mode to prevent crashes during WASM processing.
- Implemented lazy initialization pattern for Photon WASM module with proper resource cleanup using try-finally blocks.
- Added NULL_PROMPT environment variable support for debugging and testing system prompt generation.
- Added multi-part questions support to ask tool via questions array parameter for asking multiple related questions in sequence.
- Updated multi-select cursor behavior in ask tool to stay on toggled option instead of jumping to top.
- Added initialIndex parameter to ExtensionUIDialogOptions interface for controlling initial cursor position in select dialogs.
- Extracted question selection logic into askSingleQuestion helper function with UIContext interface.
- Added formatQuestionResult helper function and QuestionResult interface for multi-part question results.
- Updated ask tool prompt documentation with multi-part questions examples and Other option guidance.
The sanitizeSchemaForGoogle function was incorrectly stripping property
names like "pattern" and "format" from tool schemas because they matched
JSON Schema keywords in UNSUPPORTED_SCHEMA_FIELDS. This caused errors
like "required fields ['pattern'] are not defined in the schema properties"
when using tools like grep/find with Google's Cloud Code Assist API.
Modified the sanitization to track when processing inside a "properties"
object, only stripping schema keywords at the schema level, not when
they appear as property names.
- Added 12 new unsupported JSON Schema fields to Google provider sanitization including patternProperties, additionalProperties, min/max constraints, pattern, and format.
- Removed unsupported JSON Schema constraints from tool schemas to ensure Google AI compatibility.
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