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Tom Boucher 1e091d2bcb refactor(shell-projection): remove deprecated wrappers + finalize ADRs (Phase 4, #3468) (#3484)
* refactor(shell-projection): remove deprecated wrappers + finalize ADRs (Phase 4, #3468)

Final phase of the shell-command-projection expansion. Removes the legacy
core.cjs wrappers (`atomicWriteFileSync`, `safeReadFile`, `normalizeMd`)
now that every call site lives behind the seam, plus three Phase-3
stragglers (`graphify.cjs`, `template.cjs`, dead import in
`profile-pipeline.cjs`).

Documentation:
- ADR-0009: addendum noting Phase 1–4 scope expansion (subprocess +
  file I/O ownership), supersession of "does not execute" constraint,
  and resolution of open Q4.
- ADR-0010: status changed to Superseded by ADR-0009 with explanation.
- CONTEXT.md "Shell Command Projection Module" entry already current
  from Phase 1 — no edit needed.

Tests:
- `tests/atomic-write.test.cjs` deleted — wrapper it tested is gone;
  `atomic-write-coverage.test.cjs` (Phase 3) covers platformWriteSync.
- `tests/core.test.cjs::safeReadFile` + `::normalizeMd` describes
  deleted — wrappers are gone.
- `tests/concurrency-safety.test.cjs` normalizeMd suite (behavioral /
  perf / snapshot) repointed via 2-line shim at the seam's
  `normalizeContent` — full regression coverage preserved.

Test result: 9059/9041/18 — exact pre-Phase-4 baseline. All 18
failures are pre-existing path-with-spaces local-env issues.

Closes #3468

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* refactor(shell-projection): migrate remaining raw fs.writeFileSync sites (Phase 4, #3468)

Sweeps the 7 raw fs.writeFileSync call sites that bypassed the seam through Phase 3,
folding them into platformWriteSync. Net -14 lines: deletes the local writeFileAtomicSync
helper in installer-migrations.cjs and collapses surface.cjs's manual tmp+rename into a
single seam call.

Sites migrated:
- drift.cjs (1) — frontmatter write
- learnings.cjs (1) — learning record JSON write
- install-profiles.cjs (1) — profile marker write (collapsed redundant mkdir)
- gsd2-import.cjs (1) — imported file write (collapsed redundant mkdir)
- surface.cjs (1) — surface state write (replaced manual tmp+rename block)
- installer-migrations.cjs (3) — journal init/finalize + rewrite-json action;
  deleted private writeFileAtomicSync helper and its three call sites

Two sites intentionally retained outside the seam:
- planning-workspace.cjs:241 — workspace lock (wx-flag atomic-create; previously excluded by Phase 3)
- installer-migrations.cjs:220 — install migration lock (fd write into wx-opened handle)
- writeInstallState (installer-migrations.cjs) — strict atomic contract for install state;
  the seam's fallback-to-direct-write on rename failure would silently violate the
  invariant that install state must never be left half-written. Inline tmp+rename with
  rethrow keeps the original guarantee.

Tests: 9059 / 9041 / 18 — exactly the pre-Phase-4 baseline; 18 failures are the
pre-existing path-with-spaces local-env issues, identical files as before.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(installer-migrations): use strict atomic write for rollback install-state restore

The rollback path was restoring INSTALL_STATE via platformWriteSync, which falls
back to a direct write on rename failure and would silently violate the
half-written invariant that the install-state contract guarantees elsewhere.

Extracts the strict tmp+rename logic from writeInstallState into a shared
atomicWriteInstallState(configDir, content) helper and routes both
writeInstallState and rollbackAppliedMigrationResult through it. Preserves the
existing null-handling (rmSync when previousInstallStateBytes === null) and
existing failure-collection (failures.push on caught errors).

Byte-faithful restore: previousInstallStateBytes is written as-is (no JSON
parse round-trip), preserving the exact prior file contents on restore.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-13 20:46:02 -04:00
..

Architecture Decision Records

This directory contains Architecture Decision Records (ADRs) for GSD.

Each ADR documents one architectural decision: what was decided, why, and what consequences follow. ADRs are append-only. Amendments extend existing ADRs with a dated section rather than replacing them.

Index

ADR Title Status
0001-dispatch-policy-module.md Dispatch policy module as single seam for query execution outcomes Accepted
0002-command-contract-validation-module.md Command Contract Validation Module Accepted
0003-model-catalog-module.md Model Catalog Module as single source of truth for agent profiles and runtime tier defaults Accepted
0004-worktree-workstream-seam-module.md Planning Workspace Module as single seam for worktree and workstream state Accepted
0005-sdk-architecture-seam-map.md SDK Architecture seam map for query/runtime surfaces Accepted
0006-planning-path-projection-module.md Planning Path Projection Module for SDK query handlers Accepted
0007-sdk-package-seam-module.md SDK Package Seam Module owns SDK-to-get-shit-done-cc compatibility Accepted
0008-installer-migration-module.md Installer Migration Module owns install-time upgrade safety Accepted
0009-shell-command-projection-module.md Shell Command Projection Module owns runtime-aware OS command rendering Accepted
0010-file-operation-engine-module.md File Operation Engine Module owns safe runtime/config file mutations Proposed
0010-skill-surface-budget-module.md Skill Surface Budget Module — earlier draft superseded by ADR-0011 Superseded by 0011
0011-skill-surface-budget-module.md Skill Surface Budget Module owns install-time profile staging and runtime surface control Accepted
0011-review-default-reviewers.md Review default-reviewers selection policy for /gsd:review Accepted
0011-review-default-reviewers-prd.md PRD for review.default_reviewers feature (#3464) Reference

Seam map

ADR 0005 is the top-level SDK seam index. It references per-seam ADRs and states the narrow-waist principle each seam follows. Use it as the entry point for understanding SDK module ownership.

ADR 0006 documents how SDK query handlers project planning paths (cwd → effectiveRoot → .planning/<project>/...). Cross-reference with the Planning Workspace Module (ADR 0004) for workstream pointer policy.

ADR 0008 documents the Installer Migration Module for safe install-time moves, removals, config rewrites, and user-data preservation.

ADR 0009 documents the Shell Command Projection Module seam for runtime-aware projection of installer-owned command text and projection IR.

ADR 0010 documents the File Operation Engine Module seam for converging installer/migration/planning file mutation safety policy, and its relationship to ADR 0009 hook-command ownership policy.

ADR 0011 documents the Skill Surface Budget Module for install-time skill/agent profile staging (--profile=<name>, .gsd-profile marker, requires: closure) and the Phase 2 runtime /gsd:surface command for cluster-level enable/disable without reinstall.