The AI Toolchain — issue -268, November 22, 2025

The open source coding agent.

OpenCode v1.0.100 adds timestamp toggle and smarter time display in the TUI

$ git clone --branch v1.0.100 https://github.com/sst/opencode.git
# already have the repo? check out this version:
$ git checkout v1.0.100

• ›Adds a toggle to show or hide message timestamps in the TUI
• ›Timestamps now include the date when messages are from a previous day
• ›Displays end time for completed agent loops in the model footer
• ›Model footer now shows session duration timing

$ git clone --branch v1.0.91 https://github.com/sst/opencode.git
# already have the repo? check out this version:
$ git checkout v1.0.91

An open-source AI agent that brings the power of Gemini directly into your terminal.

gemini-cli v0.19.0-nightly adds an interactive session browser, model health tracking, custom model aliases, and custom shell loading phrases.

$ git clone --branch v0.19.0-nightly.20251122.42c2e1b21 https://github.com/google-gemini/gemini-cli.git
# already have the repo? check out this version:
$ git checkout v0.19.0-nightly.20251122.42c2e1b21

• ›Adds interactive session browser component for navigating past sessions within the UI.
• ›Adds modelAvailabilityService for managing and tracking model health, enabling automatic model fallback awareness.
• ›Supports custom aliases for model configs, letting users define shorthand names for frequently used model configurations.
• ›Displays a custom loading phrase when the interactive shell is waiting for input from an external process.

PydanticAI v1.22.0 adds OpenRouterModel, broadens FallbackModel error handling, and extends Anthropic caching support.

$ git clone --branch v1.22.0 https://github.com/pydantic/pydantic-ai.git
# already have the repo? check out this version:
$ git checkout v1.22.0

from pydantic_ai import Agent
from pydantic_ai.models.fallback import FallbackModel
from pydantic_ai.models.openai import OpenAIModel
from pydantic_ai.models.anthropic import AnthropicModel

model = FallbackModel(OpenAIModel('gpt-4o'), AnthropicModel('claude-3-5-sonnet-latest'))
agent = Agent(model)
result = agent.run_sync('Analyze this log file for anomalies.')
print(result.output)

• ›Adds OpenRouterModel as an OpenAIChatModel subclass with additional feature support for the OpenRouter API.
• ›Expands FallbackModel to fall back on all model API errors, not only HTTP 4xx+ status responses.
• ›Adds document to the allowed cacheable_types for Anthropic, enabling document caching.

Composio v0.9.3 adds LlamaIndex provider for the TS SDK, toolkit versioning support, and query-param/x-api-key auth in MCP URLs.

$ git clone --branch v0.9.3 https://github.com/ComposioHQ/composio.git
# already have the repo? check out this version:
$ git checkout v0.9.3

• ›Adds LlamaIndex provider for the TypeScript SDK, enabling LlamaIndex-based agents to call Composio tools natively.
• ›Adds toolkit versions support and deprecation flags to the TypeScript SDK, allowing pinning of specific toolkit versions for reproducible agent workflows.
• ›Adds x-api-key header support in MCP URLs for authenticating MCP connections.
• ›Adds query parameter support in MCP URLs for passing configuration inline.
• ›Adds trigger signature verification, enabling consumers to validate the authenticity of incoming trigger payloads.