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* fix(#1146): single base-branch resolver across forking workflows Replaces duplicated per-workflow bash detection that silently fell through to :-main on repos where origin/HEAD is unset (git init+remote add+fetch without set-head, most CI checkouts, many worktrees). New CJS module git-base-branch.cjs exposes `gsd_run query git.base-branch` with full precedence ladder: git.base_branch config override → origin/HEAD symref → git remote show origin (authoritative) → local branch presence → "main". All git subprocesses bounded with timeouts; degrades gracefully. Wires execute-phase, quick, ship, complete-milestone, and pr-branch to the single resolver. Removes 14 lines of duplicated detection bash across the five workflows. Includes 7 behavioral tests covering the full precedence ladder including the key regression case (master repo, origin/HEAD unset → must return "master", NOT "main") and an anti-regression guard that fails if any workflow re-introduces the :-main/:-master fallback pattern. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * docs(changeset): backfill PR number #1198 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * chore(#1146): drop stray PR-body file from branch pr-1146-body.md was committed during changeset backfill but must not be tracked in the repo. Content preserved externally for PR body use. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * test(#1146): add tests for flat base_branch config key and both-branch tie-break Closes two mutation gaps identified in adversarial review: - A2: flat {base_branch: ...} at config root (legacy key form) was covered by code but unguarded against mutation of lines 74-75 in resolver - H: tier-4 tie-break when both main+master exist locally (main wins, per tryLocalBranch JSDoc) was documented but untested 9/9 tests pass. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> * test(#1146): allowlist workflow-literal guard as runtime-contract exemption Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * fix(#1146): degrade gracefully when gsd_run unavailable in handle_branching bash blocks handle_branching (execute-phase.md) and step 2.5 (quick.md) are extracted and run verbatim by behavioral tests that lack the gsd_run preamble. Adding a || fallback ladder (git symbolic-ref then echo main) keeps the unified resolver as primary in real workflows while letting the test harness succeed without gsd_run defined. Also propagates updated runtime-launcher preamble to pr-branch.md (added in origin/next MemPalace PR) and regenerates workflow-size-baseline.json. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
GSD Core documentation
Documentation is organised into four quadrants: tutorials help you learn by doing, how-to guides solve specific tasks, reference states authoritative facts, and explanation explores concepts and design decisions.
Language versions: English · Português (pt-BR) · 日本語 · 简体中文
Tutorials
- Your first project — install to first shipped phase, one guaranteed path
- Onboarding an existing codebase — bring GSD Core to a brownfield repo
How-to guides
- Install on your runtime — runtime-specific install steps for all 16 supported runtimes
- Install a minimal GSD and add skills later — install only the core skills, then grow the surface with profiles and
/gsd:surface - Discuss a phase — capture implementation decisions before planning begins
- Resolve edge-coverage findings — turn the spec phase's surfaced domain-boundary edges into covered, dismissed, or backstopped spec decisions
- Plan a phase — run research, decompose work, and verify plan quality
- Execute a phase — run plans in parallel waves with fresh-context subagents
- Verify and ship — walk through completed work, diagnose failures, and create the PR
- Run phases autonomously — use autonomous mode for unattended phase execution
- Handle quick and fast tasks — use
/gsd-quickand/gsd-fastfor ad-hoc work outside the phase loop - Configure model profiles — switch between quality, balanced, and budget model tiers
- Set up cross-AI review — configure a second AI to review code produced by the primary agent
- Work in parallel with workstreams — run independent lines of work simultaneously using workstreams
- Isolate work with workspaces — use workspaces to sandbox experimental or risky changes
- Debug a failed execution — diagnose and recover from broken or incomplete phase execution
- Spike and sketch — use
/gsd-spikeand/gsd-sketchfor exploratory work before committing to a plan - Design a UI phase — use the UI phase loop for frontend and visual work
- Develop a Capability for GSD 1.5+ — add feature Capabilities, hook fragments, and registry entries
- Drive GSD from a tracker issue — start a phase from a GitHub, Linear, or Jira issue
- Migrate from GSD 2 — upgrade an existing GSD 2 project to GSD Core
- Update GSD — re-run the installer to pick up the latest release
- Clean up get-shit-done-cc — remove leftover old-package artifacts that cause a spurious
⬆ /gsd:updateindicator after migrating to@opengsd/gsd-core - Fix the worktree base-mismatch (exit 42) error — resolve the branch-divergence condition that halts parallel phase execution
- Recover and troubleshoot — fix common problems, rebuild context, and uninstall
Reference
- Commands — every command with flags and examples
- Configuration — full config schema, model profiles, git branching strategies
- CLI tools —
gsd-tools.cjsprogrammatic API for workflows and agents - Features — complete feature index
- Inventory — installed skills and surface map
- STATE.md schema — field-by-field reference for
.planning/STATE.md - CONTEXT.md schema — field-by-field reference for
.planning/phases/<N>/CONTEXT.md - PLAN.md schema — field-by-field reference for
.planning/phases/<N>/PLAN.md - Planning artifacts — all
.planning/files and their roles - Review and verification capabilities — code review, security, and Nyquist capability ownership and hook contracts
Explanation
- Context engineering — how context rot forms and how GSD Core prevents it
- The phase loop — design rationale for the Discuss → Plan → Execute → Verify → Ship cycle
- Multi-agent orchestration — how subagents are spawned, scoped, and coordinated
- Security model — trust boundaries, permissions, and safe automation
- Architecture — system architecture, agent model, and data flow
- Discuss modes — assumptions mode vs interview mode for
/gsd-discuss-phase - Context monitoring — context window monitoring hook architecture
- Issue-driven orchestration — recipe for driving GSD from a tracker issue using existing primitives
Related
- Root README — landing page, quickstart, and documentation overview
- Changelog — release history