Adds the fourth session adapter (after dmux-tmux, claude-history,
codex-worktree), normalizing OpenCode sessions into ecc.session.v1.
Reads ~/.local/share/opencode/storage: session/<project>/ses_*.json
for metadata (id, directory, title, version, projectID, time) and
message/<session>/msg_*.json to extract the model (modelID/providerID
from the first assistant message). Derives objective from the session
title, treating the auto-generated "New session - <date>" title as no
objective. Recency-based active/recorded state.
Schema: relax intent.objective from non-empty to allow empty string
(ensureStringAllowEmpty). Sessions legitimately have no objective yet
(fresh/auto-titled), and claude-history already emitted "" via
metadata.title fallback. This fixes a latent over-strict validation.
- scripts/lib/session-adapters/opencode.js: adapter + storage parser
- canonical-session.js: normalizeOpencodeSession + ensureStringAllowEmpty
- registry.js: register adapter + opencode target type
- tests/lib/session-adapters-opencode.test.js: 5 tests
Tests: opencode 5/0, codex 4/0, session-adapters 14/0,
control-pane-state 10/0, session-inspect 8/0, control-pane 12/0.
Smoke-tested on a real OpenCode session (140 messages, gpt-5.3-codex).
Affaan Mustafa