Tom Boucher 9a69a86f42 enhance(#2971): strict planning filter mode for /gsd-pr-branch (#3720)
* test(#2971): failing-first suite for the pr-branch planning-path filter

Binds the not-yet-built planning.pr_strict mode and the corrected filter recipe
for /gsd-pr-branch across six layers: pure classification and forbidden-path
predicates, real-git fixtures that run the cherry-pick filter loop end to end,
config-key registration through the real CLI and both manifests, the executed
worktree-materialization claim the issue's triage asked to establish, fast-check
properties over arbitrary path sets, and a drift guard over the shipped workflow.

Two live defects in today's shipped recipe are pinned as regressions, both
reproduced empirically first: `git rm -r --cached` stages a deletion of any
.planning/ path the target branch already tracks, so the generated PR removes the
base branch's planning files; and the same command leaves the cherry-picked file
untracked on disk, so a second commit touching that path aborts the pick with
"untracked working tree files would be overwritten" and every remaining commit is
silently dropped.

The test helper parses the canonical path lists out of gsd-core/workflows/pr-branch.md
rather than restating them, so the workflow stays the single source of truth and the
suite cannot drift from what ships.

Refs #2971

* feat(#2971): strict planning filter mode for /gsd-pr-branch

Adds planning.pr_strict — a boolean, default false, that selects what
/gsd-pr-branch means by "filtered". Default mode is unchanged: structural
planning state survives into the PR branch and the nine transient
subdirectories do not. Strict mode drops every .planning/ path, structural
files included, and carries a commit over only when it touches at least one
file outside .planning/.

Strict mode is what makes planning.commit_docs: true safe for a project that
versions its planning tree locally but publishes none of it. The alternative
posture, commit_docs: false, silently costs parallel executor isolation — a
worktree is checked out from a commit, so an untracked or ignored .planning/
is simply absent inside it and the executor has no PLAN.md to read. That claim
is now established by an executed fixture rather than inherited.

The two path lists are declared once and both projections derived from them,
so create_pr_branch and verify can no longer disagree about what the filter
promised. verify previously counted every .planning/ path against a documented
success criterion of zero while create_pr_branch was specified to preserve five
structural files, so a correct run reported itself as failed on every phase
that touched STATE.md — which is every phase. It now asserts against the active
mode, and names the .planning/ paths default mode deliberately keeps rather
than trading a wrong signal for silence.

Two verified defects in the same recipe are fixed alongside, because strict
mode would have amplified both. `git rm -r --cached` staged a deletion for any
.planning/ path the target branch already tracked, so the generated PR removed
the base branch's planning files — under strict mode that would have been the
entire tree. The same command left the picked file untracked on disk, so a
second commit touching that path aborted the cherry-pick with "untracked
working tree files would be overwritten" and every remaining commit was
silently dropped. Both were reproduced against real git before being fixed.
The filter now forces excluded paths back to what the PR branch's HEAD carries,
in the index and the working tree; a conflict outside the filter halts instead
of being improvised past; a commit left empty by filtering is skipped rather
than failing. A clean-working-tree precondition makes the worktree half safe.

Closes #2971

* fix(#2971): unwind the checkout on a conflict halt, and test the real recipe

Two review findings, both fixed in place.

The isolated adversarial pass found that the conflict-outside-the-filter branch
exited while leaving the user checked out on the half-built PR branch with
cherry-pick state still live — this loop runs in the user's own working
directory, so stranding them there is a real cost even though it is not a
vulnerability. The branch now aborts the pick, returns to the original branch,
removes the partial PR branch, and says so before exiting.

The standards pass found the L2 fixtures executed a hand-written mirror of the
cherry-pick filter recipe rather than the recipe itself, so a reordering in the
workflow would not have been caught — and the order is load-bearing, since
restoring a path from HEAD before removing it inverts the filter. The helper now
extracts the canonical loop from the shipped workflow and the fixtures execute
that verbatim, which also gives the conflict-halt unwind above real coverage.
The drift guard additionally pins the two commands' relative order and asserts
the workflow carries exactly one canonical loop.

Also records the publication gate in the CONTEXT.md glossary next to the commit
gate it is distinct from.

Refs #2971

* fix(#2971): make the conflict-halt unwind actually unwind, and use the colon slash form

The remote matrix caught two defects in the previous commit.

The halt path claimed to restore the original branch but did not. `git
cherry-pick --abort` does not apply to a single `--no-commit` pick with no
sequencer file, and the fallback left the unmerged index in place, which makes
`git checkout` refuse — a failure the `2>/dev/null || true` then swallowed, so
the user was told they had been restored while still sitting on the half-built
PR branch. The unwind now drops sequencer state, hard-resets the disposable PR
branch to clear the unmerged index, and only claims a restore when the checkout
actually succeeded; when it does not, it says where the user is and gives them
the two commands to finish it by hand. Verified against real git: exit 1, the
conflict named, HEAD back on the original branch, the partial branch gone, a
clean tree and no CHERRY_PICK_HEAD.

Two runtime-loaded source artifacts used the retired `/gsd-<cmd>` hyphen form,
which names a command no runtime registers. The canonical authoring token for
workflows and references is `/gsd:<cmd>`; docs keep the hyphen form, so the
documentation added in this branch is unaffected. The comment in src/config.cts
moves to the colon form too, since it propagates into the generated lib.

Refs #2971

* docs(#2971): backfill PR number into the changeset fragments (#3720)

---------

Co-authored-by: sim <sim@local>
2026-08-20 15:07:40 -04:00

GSD Core

Git. Ship. Done.

English · Português · 简体中文 · 日本語 · 한국어

A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more.

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What is GSD Core

GSD Core is a context-engineering and spec-driven development framework that drives AI coding agents (Claude Code, Codex, Antigravity CLI, Kimi CLI, Copilot, Cursor, and more) through a disciplined phase loop. It solves context rot — the quality degradation that accumulates as an AI fills its context window — by running all heavy research, planning, and execution work in fresh-context subagents while keeping your main session lean.


How it works

Each milestone repeats the same five-step loop, one phase at a time:

  1. Discuss — capture implementation decisions before anything is planned
  2. Plan — research, decompose, and verify the plan fits a fresh context window
  3. Execute — run plans in parallel waves; each executor starts with a clean 200k-token context
  4. Verify — walk through what was built; diagnose and fix before declaring done
  5. Ship — create the PR, archive the phase, repeat for the next one

Quickstart

npx @opengsd/gsd-core@latest

The installer prompts for your runtime (Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more) and whether to install globally or locally. The installer is required for cross-runtime compatibility — do not copy files from agents/ or commands/ directly.

On another runtime or without Node.js? See Install on your runtime.

Once installed, start a new project or onboard an existing repo:

/gsd-new-project   # greenfield project
/gsd-onboard       # existing codebase

New here? Follow Your first project for a guided walkthrough from install to first shipped phase, or Onboarding an existing codebase for brownfield setup.


Documentation

What's new in 1.7.0 → docs/whats-new-1.7.0.md

Tutorials — learning by doing:

How-to guides — task-focused recipes:

Reference — authoritative facts:

Explanation — concepts and design decisions:

Full index: docs/README.md. Other languages: 日本語 · 한국어 · Português · 简体中文.


Why it works

Most AI-coding setups fail at scale because context bloat silently degrades output quality, there is no shared memory between sessions, and nothing verifies that code actually works. GSD Core solves all three: heavy work runs in fresh subagents, structured artifacts like STATE.md and CONTEXT.md survive session boundaries, and the verify step walks through what was built and generates fix plans before a phase is declared done. See docs/explanation/context-engineering.md for the full reasoning.

Troubleshooting? See docs/how-to/recover-and-troubleshoot.md.


Community

Project Platform
gsd-opencode Original OpenCode port
Discord Community support

Star History

Star History Chart

License

MIT License. See LICENSE for details.


Claude Code is powerful. GSD Core makes it reliable.

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