Default-off, BETA, claude-only capability adopting Claude Code's Workflow tool (/effort ultracode, Agent SDK >= v0.3.149) as an optional parallel-execution backend for the GSD loop. Restores the wave parallelism + plan-checker + verifier that #853 forces inline on Claude Code, and folds gsd-ultraplan-phase under one runtime gate. - Pure fail-closed core (src/claude-orchestration.cts): detectWorkflowBackend (gate ladder: enabled -> Claude -> backend != inline -> nested+background host -> valid Agent SDK -> SDK >= floor; every miss degrades to inline) and emitWorkflowScript (waves -> parallel() barriers, plans -> gsd-executor + worktree, files_modified overlap -> separate stages, resumeFromRunId, budget). All interpolated identifiers validated script-safe; briefs JSON-quoted. - claude-orchestration command family (gsd-tools claude-orchestration detect-backend|emit-workflow) for orchestrator invocation. - Two gated loop contributions at wired points (execute:wave:post, plan:post); federated config keys (enabled/execution_backend/min_agent_sdk_version). - ADR-1143 implementation amendment; CONTEXT.md glossary entry; explanation doc. On any runtime lacking the Workflow tool, behaviour is byte-identical to today. closes #1143
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.