Claude Agent SDK for Python repo
Anthropic's official Python library that exposes the Claude Code agent loop, built in tools, and context management as an embeddable SDK, currently at release v0.2.152.
What it does for you: Lets YY run the same agent loop that powers Claude Code inside custom Python scripts or servers, so a Hermes style runtime can spawn subagents, hooks, and permission logic without reimplementing the harness from scratch. The latest release adds a defer hook decision, strict MCP config options, and updatedToolOutput for post tool hooks, all of which reduce custom glue code the Telegram bridge would otherwise need to write by hand.
In practice: This is the actual plumbing under Axion, worth tracking release notes on weekly rather than treating as optional reading.
For: Claude (Axion). This is Anthropic's own SDK for embedding the Claude Code agent loop in custom software, so it is Claude specific by definition and is what a Hermes style runtime would be built on top of.
Verdict: build now. Score 32. Axion's Telegram bridge and any future Hermes runtime already depend on this SDK's stability, and the new hook features are usable immediately without a design decision first.
Build #1 Claude Agent SDK for Python: use the ai-implementation-build-intake skill to build this safely. Source: https://github.com/anthropics/claude-agent-sdk-python. Save canonical skill/agent under AXION\Skills and AXION\Agents.
Source · GitHub shows 8,000 stars and 1,300 forks as of 2026-09-03. Latest release is v0.2.152, published to PyPI, bundling Claude CLI 2.1.259, confirmed on the repo Releases page.