# Handover — Session 1 (2026-07-01)

## Current state

Plan created for OpenCode v1.17.12 SDK migration. No code changes made yet.

## What was done

1. Verified SDK v1.17.9 types against v1.17.12 release notes
2. Identified 3 actually-new methods: `session.interrupt()`, `session.events()`, `session.permission`
3. Identified 2 existing-but-unused: `Session3.messages()` with cursor, `Session3.message()`
4. Created 4-phase plan with implementation details
5. Created 4 GitHub issues (#1968, #1969, #1971, #1972)
6. Created 4 draft PRs (#1973, #1974, #1976, #1977)
7. Answered bot questions on all issues

## Key findings

- `session.interrupt()` is the highest-impact change — fixes abort propagation to upstream provider
- `session.events()` and `session.permission` must be verified in SDK types before implementation
- `Session3` API has different parameter shape than `Session2` — `directory` is client-scoped, `before` replaced by `cursor`
- `global.event()` is already used correctly — no changes needed
- Custom WebSocket/SSE in `event-pipeline.ts` is OpenChamber-specific (coalescing, routing, backpressure) — not a replacement for SDK

## Next safe action

1. Bump `@opencode-ai/sdk` to `^1.17.12` and run `bun install`
2. Verify new SDK types exist (`session.interrupt`, `session.events`, `session.permission`)
3. Start Phase 1: replace `session.abort()` → `session.interrupt()` in 3 call sites

## Blockers

- SDK v1.17.12 must be published and installable
- `session.events()` and `session.permission` existence unconfirmed