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* chore(#3677): checkpoint design artifacts (gitignored, dev-only) * test(#3677): add failing regression test for the crash-window duplicate-dispatch gap (RED) Independently re-traces resume-mode.md/planner-wave.md/worktree-dispatch.md/ merge-wave.md and src/quick-batch.cts's resumeBatch (lines 894-899) and confirms the prior research pass's Open Question 1: a coordinator crash between Step 6 (executor commits, SUMMARY.md written) and Step 7 (merge) leaves BATCH.json at "pending" with no STATE.md row yet (only written in Step 9), so --resume's eligibility re-derivation would dispatch a second executor into a new worktree for the same item, orphaning the first. This test asserts worktree-dispatch.md's Step 6 excludes an item whose SUMMARY.md already exists from the spawn set, mirroring planner-wave.md's existing PLAN.md-existence check one layer earlier. Fails against the current worktree-dispatch.md, which has no such guard. See .gsd/phase/feat-3677-quick-batch-hardening-acceptance/40-design.md §1 for the full trace and fix-location rationale. * fix(#3677): guard worktree-dispatch.md against re-dispatching an already-executed item (GREEN) worktree-dispatch.md's Step 6 re-derives eligibility every dispatch round via the same quick-batch resume call resume-mode.md uses, but had no check for "did this item already finish executing" the way planner-wave.md already checks "did this item already get planned" (PLAN.md existence) before re-planning. A coordinator crash between Step 6 (executor commits, SUMMARY.md written) and Step 7 (merge) left the item eligible for a second dispatch on --resume, orphaning the first worktree's real, already- committed work and silently losing it once the second executor's SUMMARY.md write clobbered the first at the same item_dir path. Adds a SUMMARY.md-existence exclusion before spawn-plan is computed, symmetric to planner-wave.md's PLAN.md check. The excluded item is not lost: merge-wave.md's own mergeable-wave criterion (status=pending, SUMMARY.md on disk, not yet merged) already picks it up independently of this eligible/spawn list. Workflow-prose-only fix — touches no already-merged/reviewed .cts module. See .gsd/phase/feat-3677-quick-batch-hardening-acceptance/40-design.md §1 for the fix-location rationale (why not resumeBatch itself). * test(#3677): add real-git coverage for worktree-ownership tampering, scope drift, and submodules Closes the three coverage gaps identified in 40-design.md §2/§3 (#3677, epic #3344 Phase 5's own AC bullets: "arbitrary-worktree ownership attempts", "scope drift", "submodules"): - Arbitrary-worktree ownership tampering: a manifest entry naming a non-agent branch is silently dropped at normalization before any git subprocess runs; a manifest entry naming a plausible agent-branch that was never actually created by this repo's own worktree.create (a genuinely foreign repo/branch) is blocked via base_mismatch. Both leave the foreign location and repoRoot's HEAD provably untouched. - Advisory scope drift: a committed path outside declared files_modified still merges successfully (advisory, never blocking) while surfacing a scope_out_of_declared warning naming the drifted path; an exact declared-scope match produces zero warnings (boundary case). - Real .gitmodules submodule integration: a repo containing a real local git submodule merges cleanly through executeWorktreeWaveCleanupPlan for an unrelated plan; a real gitlink pointer bump (declared) merges cleanly with the superproject tree reflecting the new pinned commit; an undeclared bump is advisory-only and surfaces a scope warning naming vendor/sub, same as any other undeclared modification. No src/*.cts changes — all three gaps were coverage-only; the underlying primitives already behaved correctly (independently verified against real git subprocess output before writing each assertion). * docs(#3677): document how to diagnose a preserved quick-batch worktree Extends the one-sentence "worktree is preserved (never deleted)" mention into a concrete diagnosis procedure: where the preserved directory is, how to read the executor's real commits/diff against the plan's declared files_modified, how to read the item's own SUMMARY.md independent of merge outcome, how to manually merge-and-clean-up or discard, and how to re-run --resume afterward. Also documents that a SUMMARY.md-written-but-still- pending item (the crash-window case fixed in this same PR) needs no manual intervention — --resume routes it straight to the merge step. * chore(#3677): checkpoint final acceptance-evidence mapping (gitignored, dev-only) * fix(#3677): make crash-window duplicate-dispatch guard behaviorally provable and durably recoverable Orthogonal review (Spec finding): the crash-window regression test added earlier this phase only asserted readStep('worktree-dispatch.md') + regex matches against the markdown prose — proving the DOCUMENTATION says the right thing, never that the runtime condition (pending status + on-disk SUMMARY.md + absent STATE row) is actually handled correctly. #3677's own "Alternatives considered" explicitly rejects "document recovery without fault injection" for exactly this reason. Extracts the filtering decision into a pure, independently testable function, filterAlreadyExecuted(eligibleIds, executedIds) in src/quick-batch-dispatch.cts, wired to a new `quick-batch filter-executed` CLI verb (src/quick-batch-command-router.cts) — the same pure-decision- then-CLI-wired pattern computeSpawnPlan/computeMergeOrder already establish. worktree-dispatch.md now calls this verb explicitly instead of only describing the decision in prose. A genuine fixture-based test in tests/quick-batch.test.cjs constructs a REAL BATCH.json (createBatch), writes a REAL SUMMARY.md on disk at the item's real item_dir, calls the REAL resumeBatch, and proves both that resumeBatch alone still reports the item eligible AND that filterAlreadyExecuted (fed a real filesystem check) correctly excludes it. The prior prose-assertion tests are kept — they now prove the workflow markdown is correctly WIRED to the verb — but are no longer the only proof. Self-discovered defect while building that fixture (fixed inline, not deferred): tracing merge-wave.md against /gsd:quick's own prior art (QUICK_WORKTREE_MANIFEST=$(mktemp ...), quick.md:415) showed $QUICK_BATCH_WORKTREE_MANIFEST is a fresh PER-PROCESS temp file. A resumed coordinator correctly does not re-dispatch an already-executed item (this fix), but nothing durably recorded that item's worktree_path/branch/base either — Step 7 in the resumed process would have had no data to build its cleanup-wave entry from. Adds dispatched_worktree/dispatched_branch/ dispatched_base to QuickBatchItem (src/quick-batch.cts) — deliberately NOT a reuse of the pre-existing `worktree` field, whose loadBatch validation requires the path to exist on disk (verified empirically: reusing it made the batch permanently unloadable the moment a legitimately-merged worktree was removed). worktree-dispatch.md persists the triple once a worktree is created; merge-wave.md falls back to it when the ephemeral manifest lacks an entry, clears it after a successful merge, and fails closed rather than guessing if no record exists anywhere. See .gsd/phase/feat-3677-quick-batch-hardening-acceptance/40-design.md §9.1 and §9.3 for the full trace, empirical verification notes, and rejected alternatives (reusing `worktree` directly). * test(#3677): prove the arbitrary-worktree-ownership boundary against two real sibling worktrees Orthogonal review (Security finding): the two existing ownership-tampering tests didn't test ownership — one was trivially rejected by WORKTREE_AGENT_BRANCH_RE's shape check before any git call (proves branch- NAME filtering, not ownership), the other pointed at a wholly separate, never-linked foreign repo, so merge-base failed immediately because the branch didn't exist as a ref at all. Neither exercised the real scenario: a manifest entry whose worktree_path/branch are swapped to point at a DIFFERENT, GENUINELY-REGISTERED sibling worktree of the SAME repoRoot, with a branch name passing the shape check and a base in allowed_bases. Investigated executeWorktreeWaveCleanupPlan (src/worktree-safety.cts) directly: this is NOT a reachable gap. Git enforces branch-per-worktree uniqueness, so a swapped-in entry.branch can only match worktree_path's ACTUAL checked-out branch if it names that sibling's own real, uniquely- generated branch name — which manifest tampering confined to one batch's own record has no way to know (branch names are agent-<quick_id>[-<timestamp>]-shaped, and quick_id allocation is collision-checked GLOBALLY across every existing quick task and batch, not merely within one batch). Adds a stronger test that empirically proves this: two REAL, concurrently- alive sibling worktrees of the same repo (both via real `git worktree add`, both WORKTREE_AGENT_BRANCH_RE-passing, both sharing one merge-base), with worktree_path/branch swapped between them in both directions. Both attempts are blocked via branch_mismatch; both real worktrees, their branches, and one sibling's real uncommitted-to-main commit survive completely untouched. Supplements (does not replace) the original two tests, which still prove distinct, real boundaries. See .gsd/phase/feat-3677-quick-batch-hardening-acceptance/40-design.md §9.2 for the full trace, including the one explicitly-documented (not fixed) trust boundary this investigation surfaced: the primitive defends against fabricated data, not a caller bug that misattributes a real-but-wrong item's own triple to a different item. * chore(#3677): checkpoint design-doc addendum for review pass 2 findings (gitignored, dev-only) * docs(#3677): add changeset for PR 4240 Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
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383 B
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383 B
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type: Fixed
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pr: 4240
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**`quick-batch --resume` no longer duplicates work after a coordinator crash** — a crash between an item's executor finishing and its merge could previously cause resume to dispatch a second executor into a new worktree, silently orphaning the first one's completed work. Resume now recognizes an already-executed item and routes it straight to merge.
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