The AI Toolchain — issue -127, April 14, 2026

Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.

Claude Code v2.1.108 adds 1-hour prompt cache TTL opt-in, session recap, and slash-command discovery via Skill tool.

$ git clone --branch v2.1.108 https://github.com/anthropics/claude-code.git
# already have the repo? check out this version:
$ git checkout v2.1.108

$ ENABLE_PROMPT_CACHING_1H=1 claude

$ /recap

$ /resume   # Ctrl+A to expand to all projects

• ›Adds ENABLE_PROMPT_CACHING_1H env var to opt into 1-hour prompt cache TTL across API key, Bedrock, Vertex, and Foundry backends; FORCE_PROMPT_CACHING_5M forces the 5-minute TTL.
• ›Adds /recap command (and CLAUDE_CODE_ENABLE_AWAY_SUMMARY env var) to generate a context summary when returning to a session; also configurable via /config.
• ›Enables the model to discover and invoke built-in slash commands (/init, /review, /security-review) via the Skill tool.
• ›Adds /undo as an alias for /rewind.
• ›Adds a warning at startup when prompt caching is disabled via DISABLE_PROMPT_CACHING* environment variables.

Copilot CLI v1.0.26 adds plugin root env vars, localhost-only ACP binding, and remote control renaming across flag and command help.

$ git clone --branch v1.0.26 https://github.com/github/copilot-cli.git
# already have the repo? check out this version:
$ git checkout v1.0.26

$ echo "Plugin installed at: $COPILOT_PLUGIN_ROOT"

• ›Plugin hooks now receive PLUGIN_ROOT, COPILOT_PLUGIN_ROOT, and CLAUDE_PLUGIN_ROOT environment variables pointing to the plugin's installation directory.
• ›ACP server now binds to localhost only, preventing unintended network exposure.
• ›Renames 'steering' to 'remote control' in --remote flag and /remote command help text.
• ›Remote tab now shows Copilot coding agent tasks and supports remote control without requiring a pull request.
• ›Enterprise login now accepts hostnames without a URL scheme (e.g. github.example.com).

AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI

Pi v0.67.2 adds multi-flag system prompt appending, Kitty super-key bindings, and inline extension factories for custom entrypoints.

$ git clone --branch v0.67.2 https://github.com/earendil-works/pi.git
# already have the repo? check out this version:
$ git checkout v0.67.2

$ pi --append-system-prompt "You are a security analyst. Follow OWASP guidelines." --append-system-prompt "Scope: only assess endpoints under /api/v2."

• ›Supports multiple --append-system-prompt flags in a single invocation, with each value appended to the system prompt separated by double newlines.
• ›Adds interactive keybinding support for Kitty super-modified shortcuts such as super+k, super+enter, and ctrl+super+k.
• ›Supports passing inline extension factories to main() for embedded integrations and custom entrypoints.

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

gemini-cli v0.38.0 adds background memory, context compression, persistent policy approvals, process monitoring, and richer UI controls.

$ git clone --branch v0.38.0 https://github.com/google-gemini/gemini-cli.git
# already have the repo? check out this version:
$ git checkout v0.38.0

# In settings.json or gemini config:
{
  "experimental": {
    "adk": {
      "agentSessionNoninteractiveEnabled": true
    }
  }
}

$ /stats

$ /about

• ›Adds experimental.adk.agentSessionNoninteractiveEnabled config setting for non-interactive ADK agent sessions.
• ›Introduces a background memory service for automatic skill extraction from sessions.
• ›Adds a ContextCompressionService to automatically manage and compress long context windows.
• ›Implements context-aware persistent policy approvals so users don't repeatedly confirm the same tool actions.
• ›Implements background process monitoring and inspection tools for tracking long-running agent processes.

Your own personal AI assistant. Any OS.

OpenClaw v2026.4.14 adds forward-compat support for GPT-5.4-pro and surfaces human Telegram forum topic names in agent context.

$ git clone --branch v2026.4.14 https://github.com/openclaw/openclaw.git
# already have the repo? check out this version:
$ git checkout v2026.4.14

• ›Adds forward-compat support for gpt-5.4-pro (OpenAI Codex family), including Codex pricing/limits and list/status visibility before the upstream catalog catches up.
• ›Surfaces human Telegram forum topic names in agent context, prompt metadata, and plugin hook metadata by learning names from Telegram forum service messages.

llama.cpp b8794 adds mtmd_image_tokens_get_decoder_pos() API for multimodal token position queries.

$ git clone --branch b8794 https://github.com/ggml-org/llama.cpp.git
# already have the repo? check out this version:
$ git checkout b8794

• ›Adds mtmd_image_tokens_get_decoder_pos() to the mtmd API for retrieving the decoder position of image tokens in multimodal inference pipelines.

$ git clone --branch b8785 https://github.com/ggml-org/llama.cpp.git
# already have the repo? check out this version:
$ git checkout b8785

$ git clone --branch b8784 https://github.com/ggml-org/llama.cpp.git
# already have the repo? check out this version:
$ git checkout b8784

$ curl http://localhost:8080/v1/audio/transcriptions -F [email protected] -F model=whisper

Phoenix 14.5.0 adds span/trace annotation CLI commands, chat metadata on assistant messages, and agent feedback actions.

$ git clone --branch arize-phoenix-v14.5.0 https://github.com/Arize-ai/phoenix.git
# already have the repo? check out this version:
$ git checkout arize-phoenix-v14.5.0

• ›Adds span and trace annotation commands to the Phoenix CLI.
• ›Attaches chat metadata to assistant messages in the agent interface.
• ›Adds feedback actions to assistant messages in the agent interface.
• ›Enables toggling the assistant agent on or off from Settings.

$ git clone --branch arize-phoenix-v14.4.0 https://github.com/Arize-ai/phoenix.git
# already have the repo? check out this version:
$ git checkout arize-phoenix-v14.4.0

$ git clone --branch arize-phoenix-v14.3.0 https://github.com/Arize-ai/phoenix.git
# already have the repo? check out this version:
$ git checkout arize-phoenix-v14.3.0