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can1357 3a3c6fb17d chore: bump version to 11.6.0
2026-02-07 05:00:24 +01:00

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Changelog

[Unreleased]

[11.6.0] - 2026-02-07

Added

  • Added Bedrock cache retention support with PI_CACHE_RETENTION env var and per-request cacheRetention option
  • Added adaptive thinking support for Bedrock Opus 4.6+ models
  • Added AWS_BEDROCK_SKIP_AUTH env var to support unauthenticated Bedrock proxies
  • Added AWS_BEDROCK_FORCE_HTTP1 env var to force HTTP/1.1 for custom Bedrock endpoints
  • Re-exported Static, TSchema, and Type from @sinclair/typebox

Fixed

  • Fixed OpenAI Responses storage disabled by default (store: false)
  • Fixed reasoning effort clamping for gpt-5.3 Codex models (minimal -> low)
  • Fixed Bedrock supportsPromptCaching to also check model cost fields

[11.5.1] - 2026-02-07

Fixed

  • Fixed schema normalization to handle array-valued type fields by converting them to a single type with nullable flag for Google provider compatibility

[11.3.0] - 2026-02-06

Added

  • Added cacheRetention option to control prompt cache retention preference ('none', 'short', 'long') across providers
  • Added maxRetryDelayMs option to cap server-requested retry delays and fail fast when delays exceed the limit
  • Added effort option for Anthropic Opus 4.6+ models to control adaptive thinking effort levels ('low', 'medium', 'high', 'max')
  • Added support for Anthropic Opus 4.6+ adaptive thinking mode that lets Claude decide when and how much to think
  • Added PI_AI_ANTIGRAVITY_VERSION environment variable to customize Antigravity sandbox endpoint version
  • Exported convertAnthropicMessages function for converting message formats to Anthropic API
  • Automatic fallback for Anthropic assistant-prefill requests: appends synthetic user "Continue." message when conversation ends with assistant turn to maintain API compatibility

Changed

  • Changed supportsXhigh() to include GPT-5.1 Codex Max and broaden Anthropic support to all Anthropic Messages API models with budget-based thinking capability
  • Changed Anthropic thinking mode to use adaptive thinking for Opus 4.6+ models instead of budget-based thinking
  • Changed supportsXhigh() to support GPT-5.2/5.3 and Anthropic Opus 4.6+ models with adaptive thinking
  • Changed prompt caching to respect cacheRetention option and support TTL configuration for Anthropic
  • Changed OpenAI tool definitions to conditionally include strict field only when provider supports it
  • Changed Qwen model support to use enable_thinking boolean parameter instead of OpenAI-style reasoning_effort

Fixed

  • Fixed indentation and formatting in convertAnthropicMessages function
  • Fixed handling of conversations ending with assistant messages on Anthropic-routed models that reject assistant prefill requests

[11.2.3] - 2026-02-05

Added

  • Added Claude Opus 4.6 model support across multiple providers (Anthropic, Amazon Bedrock, GitHub Copilot, OpenRouter, OpenCode, Vercel AI Gateway)
  • Added GPT-5.3 Codex model support for OpenAI
  • Added readSseJson utility import for improved SSE stream handling in Google Gemini CLI provider

Changed

  • Updated Google Gemini CLI provider to use readSseJson utility for cleaner SSE stream parsing
  • Updated pricing for Llama 3.1 405B model on Vercel AI Gateway (cache read rate adjusted)
  • Updated Llama 3.1 405B context window and max tokens on Vercel AI Gateway (256000 for both)

Removed

  • Removed Kimi K2, Kimi K2 Turbo Preview, and Kimi K2.5 models
  • Removed Deep Cogito Cogito V2 Preview models from OpenRouter

[11.0.0] - 2026-02-05

Changed

  • Replaced direct Bun.env access with getEnv() utility from @oh-my-pi/pi-utils for consistent environment variable handling across all providers
  • Updated environment variable names from OMP_* prefix to PI_* prefix for consistency (e.g., OMP_CODING_AGENT_DIR → PI_CODING_AGENT_DIR)

Removed

  • Removed automatic environment variable migration from PI_* to OMP_* prefixes via migrate-env.ts module

[10.5.0] - 2026-02-04

Changed

  • Updated @anthropic-ai/sdk to ^0.72.1
  • Updated @aws-sdk/client-bedrock-runtime to ^3.982.0
  • Updated @google/genai to ^1.39.0
  • Updated @smithy/node-http-handler to ^4.4.9
  • Updated openai to ^6.17.0
  • Updated @types/node to ^25.2.0

Removed

  • Removed proxy-agent dependency
  • Removed undici dependency

[9.4.0] - 2026-01-31

Added

  • Added getEnv() function to retrieve environment variables from Bun.env, cwd/.env, or ~/.env
  • Added support for reading .env files from home directory and current working directory
  • Added support for exa and perplexity as known providers in getEnvApiKey()

Changed

  • Changed getEnvApiKey() to check Bun.env, cwd/.env, and ~/.env files in order of precedence
  • Refactored provider API key resolution to use a declarative service provider map

[9.2.2] - 2026-01-31

Added

  • Added OpenCode Zen provider with API key authentication for accessing multiple AI models
  • Added 4 new free models via OpenCode: glm-4.7-free, kimi-k2.5-free, minimax-m2.1-free, trinity-large-preview-free
  • Added glm-4.7-flash model via Zai provider
  • Added Kimi Code provider with OpenAI and Anthropic API format support
  • Added prompt cache retention support with PI_CACHE_RETENTION env var
  • Added overflow patterns for Bedrock, MiniMax, Kimi; reclassified 429 as rate limiting
  • Added profile endpoint integration to resolve user emails with 24-hour caching
  • Added automatic token refresh for expired Kimi OAuth credentials
  • Added Kimi Code OAuth handler with device authorization flow
  • Added Kimi Code usage provider with quota caching
  • Added 4 new Kimi Code models (kimi-for-coding, kimi-k2, kimi-k2-turbo-preview, kimi-k2.5)
  • Added Kimi Code provider integration with OAuth and token management
  • Added tool-choice utility for mapping unified ToolChoice to provider-specific formats
  • Added ToolChoice type for controlling tool selection (auto, none, any, required, function)

Changed

  • Updated Kimi K2.5 cache read pricing from 0.1 to 0.08
  • Updated MiniMax M2 pricing: input 0.6→0.6, output 3→3, cache read 0.1→0.09999999999999999
  • Updated OpenRouter DeepSeek V3.1 pricing and max tokens: input 0.6→0.5, output 3→2.8, maxTokens 262144→4096
  • Updated OpenRouter DeepSeek R1 pricing and max tokens: input 0.06→0.049999999999999996, output 0.24→0.19999999999999998, maxTokens 262144→4096
  • Updated Anthropic Claude 3.5 Sonnet max tokens from 256000 to 65536 on OpenRouter
  • Updated Vercel AI Gateway Claude 3.5 Sonnet cache read pricing from 0.125 to 0.13
  • Updated Vercel AI Gateway Claude 3.5 Sonnet New cache read pricing from 0.125 to 0.13
  • Updated Vercel AI Gateway GPT-5.2 cache read pricing from 0.175 to 0.18 and display name to 'GPT 5.2'
  • Updated Zai GLM-4.6 cache read pricing from 0.024999999999999998 to 0.03
  • Updated Zai Qwen QwQ max tokens from 66000 to 16384
  • Added delta event batching and throttling (50ms, 20 updates/sec max) to AssistantMessageEventStream
  • Updated MiniMax-M2 pricing: input 1.2→0.6, output 1.2→3, cacheRead 0.6→0.1

Removed

  • Removed OpenRouter google/gemini-2.0-flash-exp:free model
  • Removed Vercel AI Gateway stealth/sonoma-dusk-alpha and stealth/sonoma-sky-alpha models

Fixed

  • Fixed rate limit issues with Kimi models by always sending max_tokens
  • Added handling for sensitive stop reason from Anthropic API safety filters
  • Added optional chaining for safer JSON schema property access in Anthropic provider

[8.6.0] - 2026-01-27

Changed

  • Replaced JSON5 dependency with Bun.JSON5 parsing

Fixed

  • Filtered empty user text blocks for OpenAI-compatible completions and normalized Kimi reasoning_content for OpenRouter tool-call messages

[8.4.0] - 2026-01-25

Added

  • Added Azure OpenAI Responses provider with deployment mapping and resource-based base URL support

Changed

  • Added OpenRouter routing preferences for OpenAI-compatible completions

Fixed

  • Defaulted Google tool call arguments to empty objects when providers omit args
  • Guarded Responses/Codex streaming deltas against missing content parts and handled arguments.done events

[8.2.1] - 2026-01-24

Fixed

  • Fixed handling of streaming function call arguments in OpenAI responses to properly parse arguments when sent via response.function_call_arguments.done events

[8.2.0] - 2026-01-24

Changed

  • Migrated node module imports from named to namespace imports across all packages for consistency with project guidelines

[8.0.0] - 2026-01-23

Fixed

  • Fixed OpenAI Responses API 400 error "function_call without required reasoning item" when switching between models (same provider, different model). The fix omits the id field for function_calls from different models to avoid triggering OpenAI's reasoning/function_call pairing validation
  • Fixed 400 errors when reading multiple images via GitHub Copilot's Claude models. Claude requires tool_use -> tool_result adjacency with no user messages interleaved. Images from consecutive tool results are now batched into a single user message

[7.0.0] - 2026-01-21

Added

  • Added usage tracking system with normalized schema for provider quota/limit endpoints
  • Added Claude usage provider for 5-hour and 7-day quota windows
  • Added GitHub Copilot usage provider for chat, completions, and premium requests
  • Added Google Antigravity usage provider for model quota tracking
  • Added Google Gemini CLI usage provider for tier-based quota monitoring
  • Added OpenAI Codex usage provider for primary and secondary rate limit windows
  • Added ZAI usage provider for token and request quota tracking

Changed

  • Updated Claude usage provider to extract account identifiers from response headers
  • Updated GitHub Copilot usage provider to include account identifiers in usage reports
  • Updated Google Gemini CLI usage provider to handle missing reset time gracefully

Fixed

  • Fixed GitHub Copilot usage provider to simplify token handling and improve reliability
  • Fixed GitHub Copilot usage provider to properly resolve account identifiers for OAuth credentials
  • Fixed API validation errors when sending empty user messages (resume with .) across all providers:
  • Google Cloud Code Assist (google-shared.ts)
  • OpenAI Responses API (openai-responses.ts)
  • OpenAI Codex Responses API (openai-codex-responses.ts)
  • Cursor (cursor.ts)
  • Amazon Bedrock (amazon-bedrock.ts)
  • Clamped OpenAI Codex reasoning effort "minimal" to "low" for gpt-5.2 models to avoid API errors
  • Fixed GitHub Copilot usage fallback to internal quota endpoints when billing usage is unavailable
  • Fixed GitHub Copilot usage metadata to include account identifiers for report dedupe
  • Fixed Anthropic usage metadata extraction to include account identifiers when provided by the usage endpoint
  • Fixed Gemini CLI usage windows to consistently label quota windows for display suppression

[6.9.69] - 2026-01-21

Added

  • Added duration and time-to-first-token (ttft) metrics to all AI provider responses
  • Added performance tracking for streaming responses across all providers

[6.9.0] - 2026-01-21

Removed

  • Removed openai-codex provider exports from main package index
  • Removed openai-codex prompt utilities and moved them inline
  • Removed vitest configuration file

[6.8.4] - 2026-01-21

Changed

  • Updated prompt caching strategy to follow Anthropic's recommended hierarchy
  • Fixed token usage tracking to properly handle cumulative output tokens from message_delta events
  • Improved message validation to filter out empty or invalid content blocks
  • Increased OAuth callback timeout from 120 seconds to 120,000 milliseconds

[6.8.3] - 2026-01-21

Added

  • Added headers option to all providers for custom request headers
  • Added onPayload hook to observe provider request payloads before sending
  • Added strictResponsesPairing option for Azure OpenAI Responses API compatibility
  • Added originator option to loginOpenAICodex for custom OAuth flow identification
  • Added per-request headers and onPayload hooks to StreamOptions
  • Added originator option to loginOpenAICodex

Fixed

  • Fixed tool call ID normalization for OpenAI Responses API cross-provider handoffs
  • Skipped errored or aborted assistant messages during cross-provider transforms
  • Detected AWS ECS/IRSA credentials for Bedrock authentication checks
  • Detected AWS ECS/IRSA credentials for Bedrock authentication checks
  • Normalized Responses API tool call IDs during handoffs and refreshed handoff tests
  • Enforced strict tool call/result pairing for Azure OpenAI Responses API
  • Skipped errored or aborted assistant messages during cross-provider transforms

Security

  • Enhanced AWS credential detection to support ECS task roles and IRSA web identity tokens

[6.8.2] - 2026-01-21

Fixed

  • Improved error handling for aborted requests in Google Gemini CLI provider
  • Enhanced OAuth callback flow to handle manual input errors gracefully
  • Fixed login cancellation handling in GitHub Copilot OAuth flow
  • Removed fallback manual input from OpenAI Codex OAuth flow

Security

  • Hardened database file permissions to prevent credential leakage
  • Set secure directory permissions (0o700) for credential storage

[6.8.0] - 2026-01-20

Added

  • Added logout command to CLI for OAuth provider logout
  • Added status command to show logged-in providers and token expiry
  • Added persistent credential storage using SQLite database
  • Added OAuth callback server with automatic port fallback
  • Added HTML callback page with success/error states
  • Added support for Cursor OAuth provider

Changed

  • Updated Promise.withResolvers usage for better compatibility
  • Replaced custom sleep implementations with Bun.sleep and abortableSleep
  • Simplified SSE stream parsing using readLines utility
  • Updated test framework from vitest to bun:test
  • Replaced temp directory creation with TempDir API
  • Changed credential storage from auth.json to ~/.omp/agent/agent.db
  • Changed CLI command examples from npx to bunx
  • Refactored OAuth flows to use common callback server base class
  • Updated OAuth provider interfaces to use controller pattern

Fixed

  • Fixed OAuth callback handling with improved error states
  • Fixed token refresh for all OAuth providers

[6.7.670] - 2026-01-19

Changed

  • Updated Claude Code compatibility headers and version
  • Improved OAuth token handling with proper state generation
  • Enhanced cache control for tool and user message blocks
  • Simplified tool name prefixing for OAuth traffic
  • Updated PKCE verifier generation for better security

[5.7.67] - 2026-01-18

Fixed

  • Added error handling for unknown OAuth providers

[5.6.77] - 2026-01-18

Fixed

  • Prevented duplicate tool results for errored or aborted messages when results already exist

[5.6.7] - 2026-01-18

Added

  • Added automatic retry logic for OpenAI Codex responses with configurable delay and max retries
  • Added tool call ID sanitization for Amazon Bedrock to ensure valid characters
  • Added tool argument validation that coerces JSON-encoded strings for expected non-string types

Changed

  • Updated environment variable prefix from PI* to OMP* for better consistency
  • Added automatic migration for legacy PI* environment variables to OMP* equivalents
  • Adjusted Bedrock Claude thinking budgets to reserve output tokens when maxTokens is too low

Fixed

  • Fixed orphaned tool call handling to ensure proper tool_use/tool_result pairing for all assistant messages
  • Fixed message transformation to insert synthetic tool results for errored/aborted assistant messages with tool calls
  • Fixed tool prefix handling in Claude provider to use case-insensitive comparison
  • Fixed Gemini 3 model handling to treat unsigned tool calls as context-only with anti-mimicry context
  • Fixed message transformation to filter out empty error messages from conversation history
  • Fixed OpenAI completions provider compatibility detection to use provider metadata
  • Fixed OpenAI completions provider to avoid using developer role for opencode provider
  • Fixed orphaned tool call handling to skip synthetic results for errored assistant messages

[5.5.0] - 2026-01-18

Changed

  • Updated User-Agent header from 'opencode' to 'pi' for OpenAI Codex requests
  • Simplified Codex system prompt instructions
  • Removed bridge text override from Codex system prompt builder

[5.3.0] - 2026-01-15

Changed

  • Replaced detailed Codex system instructions with simplified pi assistant instructions
  • Updated internal documentation references to use pi-internal:// protocol

[5.1.0] - 2026-01-14

Added

  • Added Amazon Bedrock provider with bedrock-converse-stream API for Claude models via AWS
  • Added MiniMax provider with OpenAI-compatible API
  • Added EU cross-region inference model variants for Claude models on Bedrock

Fixed

  • Fixed Gemini CLI provider retries with proper error handling, retry delays from headers, and empty stream retry logic
  • Fixed numbered list items showing "1." for all items when code blocks break list continuity (via start property)

[5.0.0] - 2026-01-12

Added

  • Added support for xhigh thinking level in thinkingBudgets configuration

Changed

  • Changed Anthropic thinking token budgets: minimal (1024→3072), low (2048→6144), medium (8192→12288), high (16384→24576)
  • Changed Google thinking token budgets: minimal (1024), low (2048→4096), medium (8192), high (16384), xhigh (24575)
  • Changed supportsXhigh() to return true for all Anthropic models

[4.6.0] - 2026-01-12

Fixed

  • Fixed incorrect classification of thought signatures in Google Gemini responses—thought signatures are now correctly treated as metadata rather than thinking content indicators
  • Fixed thought signature handling in Google Gemini CLI and Vertex AI streaming to properly preserve signatures across text deltas
  • Fixed Google schema sanitization stripping property names that match schema keywords (e.g., "pattern", "format") from tool definitions

[4.4.9] - 2026-01-12

Fixed

  • Fixed Google provider schema sanitization to strip additional unsupported JSON Schema fields (patternProperties, additionalProperties, min/max constraints, pattern, format)

[4.4.8] - 2026-01-12

Fixed

  • Fixed Google provider schema sanitization to properly collapse anyOf/oneOf with const values into enum arrays
  • Fixed const-to-enum conversion to infer type from the const value when type is not specified

[4.4.6] - 2026-01-11

Fixed

  • Fixed tool parameter schema sanitization to only apply Google-specific transformations for Gemini models, preserving original schemas for other model types

[4.4.5] - 2026-01-11

Changed

  • Exported sanitizeSchemaForGoogle utility function for external use

Fixed

  • Fixed Google provider schema sanitization to strip additional unsupported JSON Schema fields ($schema, $ref, $defs, format, examples, and others)
  • Fixed Google provider to ignore additionalProperties: false which is unsupported by the API

[4.4.4] - 2026-01-11

Fixed

  • Fixed Cursor todo updates to bridge update_todos tool calls to the local todo_write tool

[4.3.0] - 2026-01-11

Added

  • Added debug log filtering and display script for Cursor JSONL logs with follow mode and coalescing support
  • Added protobuf definition extractor script to reconstruct .proto files from bundled JavaScript
  • Added conversation state caching to persist context across multiple Cursor API requests in the same session
  • Added shell streaming support for real-time stdout/stderr output during command execution
  • Added JSON5 parsing for MCP tool arguments with Python-style boolean and None value normalization
  • Added Cursor provider with support for Claude, GPT, and Gemini models via Cursor's agent API
  • Added OAuth authentication flow for Cursor including login, token refresh, and expiry detection
  • Added cursor-agent API type with streaming support and tool execution handlers
  • Added Cursor model definitions including Claude 4.5, GPT-5.x, Gemini 3, and Grok variants
  • Added model generation script to automatically fetch and update AI model definitions from models.dev and OpenRouter APIs

Changed

  • Changed Cursor debug logging to use structured JSONL format with automatic MCP argument decoding
  • Changed MCP tool argument decoding to use protobuf Value schema for improved type handling
  • Changed tool advertisement to filter Cursor native tools (bash, read, write, delete, ls, grep, lsp) instead of only exposing mcp_ prefixed tools

Fixed

  • Fixed Cursor conversation history serialization so subagents retain task context and can call complete

[4.2.1] - 2026-01-11

Changed

  • Updated reasoningSummary option to accept only "auto", "concise", "detailed", or null (removed "off" and "on" values)
  • Changed default reasoningSummary from "auto" to "detailed"
  • OpenAI Codex: switched to bundled system prompt matching opencode, changed originator to "opencode", simplified prompt handling

Fixed

  • Fixed Cloud Code Assist tool schema conversion to avoid unsupported const fields

[4.0.0] - 2026-01-10

Added

  • Added betas option in AnthropicOptions for passing custom Anthropic beta feature flags
  • OpenCode Zen provider support with 26 models (Claude, GPT, Gemini, Grok, Kimi, GLM, Qwen, etc.). Set OPENCODE_API_KEY env var to use.
  • thinkingBudgets option in SimpleStreamOptions for customizing token budgets per thinking level on token-based providers
  • sessionId option in StreamOptions for providers that support session-based caching. OpenAI Codex provider uses this to set prompt_cache_key and routing headers.
  • supportsUsageInStreaming compatibility flag for OpenAI-compatible providers that reject stream_options: { include_usage: true }. Defaults to true. Set to false in model config for providers like gatewayz.ai.
  • GOOGLE_APPLICATION_CREDENTIALS env var support for Vertex AI credential detection (standard for CI/production)
  • Exported OpenAI Codex utilities: CacheMetadata, getCodexInstructions, getModelFamily, ModelFamily, buildCodexPiBridge, buildCodexSystemPrompt, CodexSystemPrompt
  • Headless OAuth support for all callback-server providers (Google Gemini CLI, Antigravity, OpenAI Codex): paste redirect URL when browser callback is unreachable
  • Cancellable GitHub Copilot device code polling via AbortSignal
  • Improved error messages for OpenRouter providers by including raw metadata from upstream errors

Changed

  • Changed Anthropic provider to include Claude Code system instruction for all API key types, not just OAuth tokens (except Haiku models)
  • Changed Anthropic OAuth tool naming to use proxy_ prefix instead of mapping to Claude Code tool names, avoiding potential name collisions
  • Changed Anthropic provider to include Claude Code headers for all requests, not just OAuth tokens
  • Anthropic provider now maps tool names to Claude Code's exact tool names (Read, Write, Edit, Bash, Grep, Glob) instead of using prefixed names
  • OpenAI Completions provider now disables strict mode on tools to allow optional parameters without null unions

Fixed

  • Fixed Anthropic OAuth code parsing to accept full redirect URLs in addition to raw authorization codes
  • Fixed Anthropic token refresh to preserve existing refresh token when server doesn't return a new one
  • Fixed thinking mode being enabled when tool_choice forces a specific tool, which is unsupported
  • Fixed max_tokens being too low when thinking budget is set, now auto-adjusts to model's maxTokens
  • Google Cloud Code Assist OAuth for paid subscriptions: properly handles long-running operations for project provisioning, supports GOOGLE_CLOUD_PROJECT / GOOGLE_CLOUD_PROJECT_ID env vars for paid tiers
  • os.homedir() calls at module load time; now resolved lazily when needed
  • OpenAI Responses tool strict flag to use a boolean for LM Studio compatibility
  • Gemini CLI abort handling: detect native AbortError in retry catch block, cancel SSE reader when abort signal fires
  • Antigravity provider 429 errors by aligning request payload with CLIProxyAPI v6.6.89
  • Thinking block handling for cross-model conversations: thinking blocks are now converted to plain text when switching models
  • OpenAI Codex context window from 400,000 to 272,000 tokens to match Codex CLI defaults
  • Codex SSE error events to surface message, code, and status
  • Context overflow detection for context_length_exceeded error codes
  • Codex provider now always includes reasoning.encrypted_content even when custom include options are passed
  • Codex requests now omit the reasoning field entirely when thinking is off
  • Crash when pasting text with trailing whitespace exceeding terminal width

[3.37.1] - 2026-01-10

Added

  • Added automatic type coercion for tool arguments when LLMs return JSON-encoded strings instead of native types (numbers, booleans, arrays, objects)

Changed

  • Changed tool argument validation to attempt JSON parsing and type coercion before rejecting mismatched types
  • Changed validation error messages to include both original and normalized arguments when coercion was attempted

[3.37.0] - 2026-01-10

Changed

  • Enabled type coercion in JSON schema validation to automatically convert compatible types

[3.35.0] - 2026-01-09

Added

  • Enhanced error messages to include retry-after timing information from API rate limit headers

[0.42.0] - 2026-01-09

Added

  • Added OpenCode Zen provider support with 26 models (Claude, GPT, Gemini, Grok, Kimi, GLM, Qwen, etc.). Set OPENCODE_API_KEY env var to use.

[0.39.0] - 2026-01-08

Fixed

  • Fixed Gemini CLI abort handling: detect native AbortError in retry catch block, cancel SSE reader when abort signal fires (#568 by @tmustier)
  • Fixed Antigravity provider 429 errors by aligning request payload with CLIProxyAPI v6.6.89: inject Antigravity system instruction with role: "user", set requestType: "agent", and use antigravity userAgent. Added bridge prompt to override Antigravity behavior (identity, paths, web dev guidelines) with Pi defaults. (#571 by @ben-vargas)
  • Fixed thinking block handling for cross-model conversations: thinking blocks are now converted to plain text (no <thinking> tags) when switching models. Previously, <thinking> tags caused models to mimic the pattern and output literal tags. Also fixed empty thinking blocks causing API errors. (#561)

[0.38.0] - 2026-01-08

Added

  • thinkingBudgets option in SimpleStreamOptions for customizing token budgets per thinking level on token-based providers (#529 by @melihmucuk)

Breaking Changes

  • Removed OpenAI Codex model aliases (gpt-5, gpt-5-mini, gpt-5-nano, codex-mini-latest, gpt-5-codex, gpt-5.1-codex, gpt-5.1-chat-latest). Use canonical model IDs: gpt-5.1, gpt-5.1-codex-max, gpt-5.1-codex-mini, gpt-5.2, gpt-5.2-codex. (#536 by @ghoulr)

Fixed

  • Fixed OpenAI Codex context window from 400,000 to 272,000 tokens to match Codex CLI defaults and prevent 400 errors. (#536 by @ghoulr)
  • Fixed Codex SSE error events to surface message, code, and status. (#551 by @tmustier)
  • Fixed context overflow detection for context_length_exceeded error codes.

[0.37.6] - 2026-01-06

Added

  • Exported OpenAI Codex utilities: CacheMetadata, getCodexInstructions, getModelFamily, ModelFamily, buildCodexPiBridge, buildCodexSystemPrompt, CodexSystemPrompt (#510 by @mitsuhiko)

[0.37.3] - 2026-01-06

Added

  • sessionId option in StreamOptions for providers that support session-based caching. OpenAI Codex provider uses this to set prompt_cache_key and routing headers.

[0.37.2] - 2026-01-05

Fixed

  • Codex provider now always includes reasoning.encrypted_content even when custom include options are passed (#484 by @kim0)

[0.37.0] - 2026-01-05

Breaking Changes

  • OpenAI Codex models no longer have per-thinking-level variants (e.g., gpt-5.2-codex-high). Use the base model ID and set thinking level separately. The Codex provider clamps reasoning effort to what each model supports internally. (initial implementation by @ben-vargas in #472)

Added

  • Headless OAuth support for all callback-server providers (Google Gemini CLI, Antigravity, OpenAI Codex): paste redirect URL when browser callback is unreachable (#428 by @ben-vargas, #468 by @crcatala)
  • Cancellable GitHub Copilot device code polling via AbortSignal

Fixed

  • Codex requests now omit the reasoning field entirely when thinking is off, letting the backend use its default instead of forcing a value. (#472)

[0.36.0] - 2026-01-05

Added

  • OpenAI Codex OAuth provider with Responses API streaming support: openai-codex-responses streaming provider with SSE parsing, tool-call handling, usage/cost tracking, and PKCE OAuth flow (#451 by @kim0)

Fixed

  • Vertex AI dummy value for getEnvApiKey(): Returns "<authenticated>" when Application Default Credentials are configured (~/.config/gcloud/application_default_credentials.json exists) and both GOOGLE_CLOUD_PROJECT (or GCLOUD_PROJECT) and GOOGLE_CLOUD_LOCATION are set. This allows streamSimple() to work with Vertex AI without explicit apiKey option. The ADC credentials file existence check is cached per-process to avoid repeated filesystem access.

[0.32.3] - 2026-01-03

Fixed

  • Google Vertex AI models no longer appear in available models list without explicit authentication. Previously, getEnvApiKey() returned a dummy value for google-vertex, causing models to show up even when Google Cloud ADC was not configured.

[0.32.0] - 2026-01-03

Added

  • Vertex AI provider with ADC (Application Default Credentials) support. Authenticate with gcloud auth application-default login, set GOOGLE_CLOUD_PROJECT and GOOGLE_CLOUD_LOCATION, and access Gemini models via Vertex AI. (#300 by @default-anton)

Fixed

  • Gemini CLI rate limit handling: Added automatic retry with server-provided delay for 429 errors. Parses delay from error messages like "Your quota will reset after 39s" and waits accordingly. Falls back to exponential backoff for other transient errors. (#370)

[0.31.0] - 2026-01-02

Breaking Changes

  • Agent API moved: All agent functionality (agentLoop, agentLoopContinue, AgentContext, AgentEvent, AgentTool, AgentToolResult, etc.) has moved to @mariozechner/pi-agent-core. Import from that package instead of @oh-my-pi/pi-ai.

Added

  • GoogleThinkingLevel type: Exported type that mirrors Google's ThinkingLevel enum values ("THINKING_LEVEL_UNSPECIFIED" | "MINIMAL" | "LOW" | "MEDIUM" | "HIGH"). Allows configuring Gemini thinking levels without importing from @google/genai.
  • ANTHROPIC_OAUTH_TOKEN env var: Now checked before ANTHROPIC_API_KEY in getEnvApiKey(), allowing OAuth tokens to take precedence.
  • event-stream.js export: AssistantMessageEventStream utility now exported from package index.

Changed

  • OAuth uses Web Crypto API: PKCE generation and OAuth flows now use Web Crypto API (crypto.subtle) instead of Node.js crypto module. This improves browser compatibility while still working in Node.js 20+.
  • Deterministic model generation: generate-models.ts now sorts providers and models alphabetically for consistent output across runs. (#332 by @mrexodia)

Fixed

  • OpenAI completions empty content blocks: Empty text or thinking blocks in assistant messages are now filtered out before sending to the OpenAI completions API, preventing validation errors. (#344 by @default-anton)
  • Thinking token duplication: Fixed thinking content duplication with chutes.ai provider. The provider was returning thinking content in both reasoning_content and reasoning fields, causing each chunk to be processed twice. Now only the first non-empty reasoning field is used.
  • zAi provider API mapping: Fixed zAi models to use openai-completions API with correct base URL (https://api.z.ai/api/coding/paas/v4) instead of incorrect Anthropic API mapping. (#344, #358 by @default-anton)

[0.28.0] - 2025-12-25

Breaking Changes

  • OAuth storage removed (#296): All storage functions (loadOAuthCredentials, saveOAuthCredentials, setOAuthStorage, etc.) removed. Callers are responsible for storing credentials.
  • OAuth login functions: loginAnthropic, loginGitHubCopilot, loginGeminiCli, loginAntigravity now return OAuthCredentials instead of saving to disk.
  • refreshOAuthToken: Now takes (provider, credentials) and returns new OAuthCredentials instead of saving.
  • getOAuthApiKey: Now takes (provider, credentials) and returns { newCredentials, apiKey } or null.
  • OAuthCredentials type: No longer includes type: "oauth" discriminator. Callers add discriminator when storing.
  • setApiKey, resolveApiKey: Removed. Callers must manage their own API key storage/resolution.
  • getApiKey: Renamed to getEnvApiKey. Only checks environment variables for known providers.

[0.27.7] - 2025-12-24

Fixed

  • Thinking tag leakage: Fixed Claude mimicking literal </thinking> tags in responses. Unsigned thinking blocks (from aborted streams) are now converted to plain text without <thinking> tags. The TUI still displays them as thinking blocks. (#302 by @nicobailon)

[0.25.1] - 2025-12-21

Added

  • xhigh thinking level support: Added supportsXhigh() function to check if a model supports xhigh reasoning level. Also clamps xhigh to high for OpenAI models that don't support it. (#236 by @theBucky)

Fixed

  • Gemini multimodal tool results: Fixed images in tool results causing flaky/broken responses with Gemini models. For Gemini 3, images are now nested inside functionResponse.parts per the docs. For older models (which don't support multimodal function responses), images are sent in a separate user message.

  • Queued message steering: When getQueuedMessages is provided, the agent loop now checks for queued user messages after each tool call and skips remaining tool calls in the current assistant message when a queued message arrives (emitting error tool results).

  • Double API version path in Google provider URL: Fixed Gemini API calls returning 404 after baseUrl support was added. The SDK was appending its default apiVersion to baseUrl which already included the version path. (#251 by @shellfyred)

  • Anthropic SDK retries disabled: Re-enabled SDK-level retries (default 2) for transient HTTP failures. (#252)

[0.23.5] - 2025-12-19

Added

  • Gemini 3 Flash thinking support: Extended thinking level support for Gemini 3 Flash models (MINIMAL, LOW, MEDIUM, HIGH) to match Pro models' capabilities. (#212 by @markusylisiurunen)

  • GitHub Copilot thinking models: Added thinking support for additional Copilot models (o3-mini, o1-mini, o1-preview). (#234 by @aadishv)

Fixed

  • Gemini tool result format: Fixed tool result format for Gemini 3 Flash Preview which strictly requires { output: value } for success and { error: value } for errors. Previous format using { result, isError } was rejected by newer Gemini models. Also improved type safety by removing as any casts. (#213, #220)

  • Google baseUrl configuration: Google provider now respects baseUrl configuration for custom endpoints or API proxies. (#216, #221 by @theBucky)

  • GitHub Copilot vision requests: Added Copilot-Vision-Request header when sending images to GitHub Copilot models. (#222)

  • GitHub Copilot X-Initiator header: Fixed X-Initiator logic to check last message role instead of any message in history. This ensures proper billing when users send follow-up messages. (#209)

[0.22.3] - 2025-12-16

Added

  • Image limits test suite: Added comprehensive tests for provider-specific image limitations (max images, max size, max dimensions). Discovered actual limits: Anthropic (100 images, 5MB, 8000px), OpenAI (500 images, ≥25MB), Gemini (~2500 images, ≥40MB), Mistral (8 images, ~15MB), OpenRouter (~40 images context-limited, ~15MB). (#120)

  • Tool result streaming: Added tool_execution_update event and optional onUpdate callback to AgentTool.execute() for streaming tool output during execution. Tools can now emit partial results (e.g., bash stdout) that are forwarded to subscribers. (#44)

  • X-Initiator header for GitHub Copilot: Added X-Initiator header handling for GitHub Copilot provider to ensure correct call accounting (agent calls are not deducted from quota). Sets initiator based on last message role. (#200 by @kim0)

Changed

  • Normalized tool_execution_end result: tool_execution_end event now always contains AgentToolResult (no longer AgentToolResult | string). Errors are wrapped in the standard result format.

Fixed

  • Reasoning disabled by default: When reasoning option is not specified, thinking is now explicitly disabled for all providers. Previously, some providers like Gemini with "dynamic thinking" would use their default (thinking ON), causing unexpected token usage. This was the original intended behavior. (#180 by @markusylisiurunen)

[0.22.2] - 2025-12-15

Added

  • Interleaved thinking for Anthropic: Added interleavedThinking option to AnthropicOptions. When enabled, Claude 4 models can think between tool calls and reason after receiving tool results. Enabled by default (no extra token cost, just unlocks the capability). Set interleavedThinking: false to disable.

[0.22.1] - 2025-12-15

Dedicated to Peter's shoulder (@steipete)

Added

  • Interleaved thinking for Anthropic: Enabled interleaved thinking in the Anthropic provider, allowing Claude models to output thinking blocks interspersed with text responses.

[0.22.0] - 2025-12-15

Added

  • GitHub Copilot provider: Added github-copilot as a known provider with models sourced from models.dev. Includes Claude, GPT, Gemini, Grok, and other models available through GitHub Copilot. (#191 by @cau1k)

Fixed

  • GitHub Copilot gpt-5 models: Fixed API selection for gpt-5 models to use openai-responses instead of openai-completions (gpt-5 models are not accessible via completions endpoint)

  • GitHub Copilot cross-model context handoff: Fixed context handoff failing when switching between GitHub Copilot models using different APIs (e.g., gpt-5 to claude-sonnet-4). Tool call IDs from OpenAI Responses API were incompatible with other models. (#198)

  • Gemini 3 Pro thinking levels: Thinking level configuration now works correctly for Gemini 3 Pro models. Previously all levels mapped to -1 (minimal thinking). Now LOW/MEDIUM/HIGH properly control test-time computation. (#176 by @markusylisiurunen)

[0.18.2] - 2025-12-11

Changed

  • Anthropic SDK retries disabled: Set maxRetries: 0 on Anthropic client to allow application-level retry handling. The SDK's built-in retries were interfering with coding-agent's retry logic. (#157)

[0.18.1] - 2025-12-10

Added

  • Mistral provider: Added support for Mistral AI models via the OpenAI-compatible API. Includes automatic handling of Mistral-specific requirements (tool call ID format). Set MISTRAL_API_KEY environment variable to use.

Fixed

  • Fixed Mistral 400 errors after aborted assistant messages by skipping empty assistant messages (no content, no tool calls) (#165)

  • Removed synthetic assistant bridge message after tool results for Mistral (no longer required as of Dec 2025) (#165)

  • Fixed bug where ANTHROPIC_API_KEY environment variable was deleted globally after first OAuth token usage, causing subsequent prompts to fail (#164)

[0.17.0] - 2025-12-09

Added

  • agentLoopContinue function: Continue an agent loop from existing context without adding a new user message. Validates that the last message is user or toolResult. Useful for retry after context overflow or resuming from manually-added tool results.

Breaking Changes

  • Removed provider-level tool argument validation. Validation now happens in agentLoop via executeToolCalls, allowing models to retry on validation errors. For manual tool execution, use validateToolCall(tools, toolCall) or validateToolArguments(tool, toolCall).

Added

  • Added validateToolCall(tools, toolCall) helper that finds the tool by name and validates arguments.

  • OpenAI compatibility overrides: Added compat field to Model for openai-completions API, allowing explicit configuration of provider quirks (supportsStore, supportsDeveloperRole, supportsReasoningEffort, maxTokensField). Falls back to URL-based detection if not set. Useful for LiteLLM, custom proxies, and other non-standard endpoints. (#133, thanks @fink-andreas for the initial idea and PR)

  • xhigh reasoning level: Added xhigh to ReasoningEffort type for OpenAI codex-max models. For non-OpenAI providers (Anthropic, Google), xhigh is automatically mapped to high. (#143)

Changed

  • Updated SDK versions: OpenAI SDK 5.21.0 → 6.10.0, Anthropic SDK 0.61.0 → 0.71.2, Google GenAI SDK 1.30.0 → 1.31.0

[0.13.0] - 2025-12-06

Breaking Changes

  • Added totalTokens field to Usage type: All code that constructs Usage objects must now include the totalTokens field. This field represents the total tokens processed by the LLM (input + output + cache). For OpenAI and Google, this uses native API values (total_tokens, totalTokenCount). For Anthropic, it's computed as input + output + cacheRead + cacheWrite.

[0.12.10] - 2025-12-04

Added

  • Added gpt-5.1-codex-max model support

Fixed

  • OpenAI Token Counting: Fixed usage.input to exclude cached tokens for OpenAI providers. Previously, input included cached tokens, causing double-counting when calculating total context size via input + cacheRead. Now input represents non-cached input tokens across all providers, making input + output + cacheRead + cacheWrite the correct formula for total context size.

  • Fixed Claude Opus 4.5 cache pricing (was 3x too expensive)

    • Corrected cache_read: $1.50 → $0.50 per MTok
    • Corrected cache_write: $18.75 → $6.25 per MTok
    • Added manual override in scripts/generate-models.ts until upstream fix is merged
    • Submitted PR to models.dev: https://github.com/sst/models.dev/pull/439

[0.9.4] - 2025-11-26

Initial release with multi-provider LLM support.

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