v2.0.0

miraymen/pix2surfv2.0.0Jul 16, 2026by github-actions[bot]

AI Summary

Migrates the agent runtime to a pi harness and removes support for Google Vertex AI.

Key Highlights

Agent runtime migrated from Claude Agent SDK to pi harness.
Google Vertex AI provider is no longer supported.

Breaking Changes

Removed Google Vertex AI provider and related environment variables (CLAUDE_CODE_USE_VERTEX, ANTHROPIC_VERTEX_PROJECT, etc.).
Removed `CLAUDE_CODE_MAX_OUTPUT_TOKENS` environment variable and config key.

New Features

Migrated agent runtime to pi harness

Full Release Notes

# [2.0.0](https://github.com/KeygraphHQ/shannon/compare/v1.9.0...v2.0.0) (2026-07-16)


### Features

* **worker:** migrate agent runtime from Claude Agent SDK to pi harness ([#389](https://github.com/KeygraphHQ/shannon/issues/389)) ([5ff40f8](https://github.com/KeygraphHQ/shannon/commit/5ff40f8c6f694a5b50753b5e46ba061f88d0c6d6)), closes [#356](https://github.com/KeygraphHQ/shannon/issues/356) [#377](https://github.com/KeygraphHQ/shannon/issues/377) [#383](https://github.com/KeygraphHQ/shannon/issues/383) [#388](https://github.com/KeygraphHQ/shannon/issues/388)


### BREAKING CHANGES

* **worker:** Google Vertex AI is no longer a supported provider. The
CLAUDE_CODE_USE_VERTEX, ANTHROPIC_VERTEX_PROJECT, CLOUD_ML_REGION, and
GOOGLE_APPLICATION_CREDENTIALS environment variables, along with the
use_vertex, vertex_project, and cloud_ml_region config.toml keys, are
removed. Vertex users must switch to Anthropic, AWS Bedrock, or a custom
Anthropic-compatible base URL.

The CLAUDE_CODE_MAX_OUTPUT_TOKENS environment variable and the
max_output_tokens config.toml key are also removed.