* feat(#1682): OpenCode session.idle + opencode-subset dialect + Claude parity — Slice 1b/c - Plugin (.opencode/plugins/gsd-core.js): handle session.idle (↔ Claude Stop lifecycle point; no-op sentinel — state already persisted to .planning/). Completes the compaction/idle pair (#1914 shipped compaction). - Declare hookEvents: 'opencode-subset' in the OpenCode descriptor — the reserved dialect now has a real consumer (no longer zero-consumer). - host-integration.cts: add HOOK_EVENT_SURFACES + hookEventSurfaceFor() — the pure consumer that resolves a dialect to its host-fireable event surface. opencode-subset = session/tool/file subset with NO workflow-phase events (engine owns phase sequencing; ADR-1239 §OpenCode binding). - Tests: hookEventSurfaceFor unit tests (claude/gemini/opencode-subset/null); plugin session.idle no-throw; compaction breadcrumb; opencode-subset surface parity vs the plugin's handlers (Claude parity). * fix(#1682): don't declare hookEvents on opencode (hooksSurface:none invariant) The repo invariant couples runtime.hookEvents to the managed settings.json hook surface: hooksSurface:'none' runtimes (opencode — plugin owns hooks) must NOT declare hookEvents. Declaring 'opencode-subset' there violated 3 capability- registry invariants + 2 install-plan golden masters + opencode golden parity. The opencode-subset dialect is still IMPLEMENTED — just not via the legacy descriptor field: hookEventSurfaceFor() (host-integration.cts) is its consumer, and the OpenCode plugin consumes the subset events at runtime (session.idle added here; compaction shipped in #1914). Declaring it on the descriptor would require weakening the hooksSurface:none ⇔ no-hookEvents invariant (flagged for decision). * fix(#1682): refresh opencode golden parity for plugins/gsd-core.js (session.idle) * docs(changeset): OpenCode session.idle + opencode-subset dialect (#1682) * docs(changeset): backfill PR #1930
Changeset Fragments
This directory holds per-PR CHANGELOG fragments. Every PR with user-facing changes drops one (or more) <random-name>.md files here describing its CHANGELOG entry. Fragments are consolidated into the top-level CHANGELOG.md at release time.
Why
Two PRs that both edit the ### Fixed block of CHANGELOG.md always conflict on merge — git can't pick a serialization order without human input. Two PRs that each add a fresh .changeset/<unique-name>.md never conflict because they don't share lines.
See #2975 for the full rationale.
Adding a fragment
node scripts/changeset/new.cjs \
--type Fixed \
--pr 1234 \
--body "fix the thing — explain the user-visible change in one sentence"
This writes .changeset/<adjective>-<noun>-<noun>.md with frontmatter and a body. Three random words → concurrent PRs don't collide.
Format
---
type: Fixed
pr: 1234
---
**`/gsd-foo` no longer drops trailing slashes** — explain the user-visible change.
Allowed type: values follow Keep a Changelog: Added, Changed, Deprecated, Removed, Fixed, Security.
Opting out
PRs that legitimately have no user-facing impact can add the no-changelog label. CI honors it. When unsure, add the fragment.
At release time
Promotion is automatic. The release workflow's finalize job runs:
node scripts/changeset/cli.cjs render --version vX.Y.Z --date YYYY-MM-DD --allow-empty
This reads every fragment, groups bullets by type:, replaces ## [Unreleased] with a new ## [vX.Y.Z] - YYYY-MM-DD block, opens a fresh ## [Unreleased] above, and deletes consumed fragments. The --allow-empty flag ensures a no-change release still gets a dated heading (with a _No notable changes._ placeholder). A subsequent verify step confirms the promotion landed correctly. Maintainers do not run this by hand.
Archived fragments
.changeset/archived/ holds fragments for already-shipped releases (≤ 1.3.1), retained for provenance. Their content was hand-curated into the dated ## [1.x.y] sections of CHANGELOG.md during the #690 backfill — they were never consumed by render. All changeset tooling enumerates .changeset/ non-recursively, so archived fragments are never picked up or rendered. Do not move them back to the top level.