v1.3.0 OpenAI Responses Compaction v2

1.3.0 (2026-08-13)

Features

• Replaces /responses/compact calls with streamed /responses requests that append a final compaction_trigger input item.
• Builds compaction requests with tool_choice: "auto", store: false, stream: true, and encrypted reasoning content enabled.
• Stores retained user messages followed by the encrypted compaction item returned through Responses SSE events.
• Restores structured OpenCode history before compaction, preserving reasoning items, tool calls, attachments, provider metadata, and stable instructions.

Fixes

• Rejects malformed, failed, incomplete, or ambiguous compaction streams instead of storing invalid checkpoints.
• Refuses to send the OpenAI OAuth dummy API key when OAuth credentials are unavailable.
• Reuses the authenticated OpenAI fetch wrapper when provider configuration is reapplied.
• Shares refreshed OAuth credentials across concurrent OpenAI requests.
• Keeps existing configuration files valid while deprecating responses.compactEndpointPath; compaction now uses responses.endpointPath.

Maintenance

• Adds regression coverage for compaction v2 request construction, SSE validation, structured input restoration, OAuth routing, credential refresh, and unavailable credentials.
• Updates pnpm to 11.21.0, @opencode-ai/plugin to 1.18.16, and @types/node to 26.2.0.
• Updates CI and release Actions to Node.js 24-based versions.
• Splits pnpm and Node.js setup in the release workflow and verifies GitHub OIDC availability before publishing.

Full Changelog: v1.2.1...v1.3.0