Commit Graph

2 Commits

Author SHA1 Message Date
Tom Boucher
5fd5c81042 test(#3055): add the process seam so a subprocess timeout is expressible as data (#3066)
* test(#3055): add the process seam and route runGsdTools through it

Adds tests/helpers/process-seam.cjs — runNode/runGit/runHook over spawnSync,
each returning a typed discriminated union
{ outcome, exitCode, stdout, stderr, timedOut, signal, killed, code }.
Every call is timeout-bounded; there is no unbounded path.

runGsdTools becomes an adapter over the seam. Its legacy
{ success, output, error, exitCode } shape and retry-once-on-kill behaviour
are preserved byte-identically, so none of its 136 caller files change.

Outcome discrimination was corrected against probed runtime behaviour rather
than assumption: a timeout and a maxBuffer overflow are identical on both
status (null) and signal (SIGTERM), and differ only by code (ETIMEDOUT vs
ENOBUFS). Overflow is therefore classified before timeout. This fixes a live
defect — the previous isKilled() treated an overflow as a kill, retried it for
a second full 60s run, and then reported "host OOM or scheduler contention"
for a child that had merely printed too much.

Also widens the ESLint tests glob from tests/**/*.test.cjs to tests/**/*.cjs,
which brought 31 previously unlinted shared helpers under the same rules their
sibling test files already obey, and fixes the 5 violations that surfaced —
including a bare npm invocation without shell:true in
tests/helpers/emitted-runtime.cjs (DEFECT.WINDOWS-TEST-PORTABILITY), now
routed through the existing portable runNpm helper.

Refs #3051

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#3055): migrate every local spawn wrapper onto the process seam

Replaces the spawn body of all 25 local runHook/runGuard/runGate definitions
with a call to tests/helpers/process-seam.cjs. Each wrapper keeps its name,
parameter list, return shape and post-processing (JSON parse, ANSI strip, env
sanitising, field extraction) — only the spawn mechanism changes, so no test
assertion moves.

The 4 bash-driven wrappers use the seam's explicit `interpreter` option rather
than a fourth primitive; it is explicit rather than inferred from the file
extension, because guessing an interpreter from a path fails silently when a
script's name does not match its shebang.

Seven wrappers were previously unbounded and now carry an explicit timeout
sized to what each actually runs, not the seam default. Two of those seven
(gsd-write-guard, lint-docs-command-form) were absent from the issue's
inventory entirely and were found by scanning after the migration.

Adds the CONTEXT.md `### Process seam` glossary entry and a CONTRIBUTING.md
reference section covering the three primitives, the discriminated union, and
the two rules the seam enforces.

Scope disclosure recorded in the phase design notes: the issue scoped three
identifier names. A scan for local helpers that spawn AND return the spawn
result finds 113 across 82 names, 71 of them unbounded, plus 122 unbounded
direct git call sites. This change bounds 25 of those. The remaining surface
is the same defect class and is NOT closed by this PR.

Refs #3051

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#3055): classify an externally-killed child as KILLED, not EXITED

Blocker found in this branch's own diff, independently confirmed by an
isolated reviewer.

A child killed by an external signal — a genuine bench OOM kill — makes
spawnSync return { status: null, signal: 'SIGKILL' } with NO .error field.
The seam's "no error implies EXITED" rule therefore classified it as a clean
exit, and runGsdTools returned { success: false, exitCode: 1 } without
retrying. That silently defeated the #969 kill-discrimination for precisely
the case it was built for: the old isKilled() fired on `signal != null`,
retried once, then threw a labelled resource-starvation error. A real OOM
would have been reported as an ordinary assertion failure.

Adds a fifth outcome, KILLED, for "no error but a signal is set", and makes
the adapter retry on TIMED_OUT or KILLED — reproducing the old
`killed || signal != null || code === 'ETIMEDOUT'` condition exactly.
SPAWN_FAILED still does not retry (matching the old behaviour, where signal
was null). BUFFER_OVERFLOW still does not retry, which remains a deliberate
divergence: the old code retried it because signal was SIGTERM, burning a
second 60s run on a child that had merely printed too much.

All five outcomes verified against the live runtime rather than assumed:
SIGKILL -> killed, exit 0/7 -> exited, timeout -> timed_out (ETIMEDOUT),
>1MB stdout -> buffer_overflow (ENOBUFS).

Refs #3051

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#3055): address standards-review findings on this branch

Three findings from the standards axis of the review, all in this branch's
own diff.

The CONTEXT.md glossary entry this branch introduced was already stale on the
branch's own last commit: it enumerated a 4-member OUTCOME while the code had
5, because the KILLED fix did not update it. That is precisely the drift the
"module changes update Domain-terms" gate exists to catch, so the entry now
lists all five and explains KILLED.

api-coverage-gate-e2e compared an outcome against the raw string 'exited'
rather than OUTCOME.EXITED, the only such outlier; the enum is now imported
and used. A sweep for the other four outcome literals found no further
comparison sites.

Three call sites hand the literal bash flag '-c' to the seam's first
parameter, which the JSDoc described as an absolute script path. Rather than
add a fourth primitive, the contract is corrected to match reality: the
parameter is renamed `target` and documented as the first argv element handed
to the interpreter — normally a script path, but for an interpreter invoked
with an inline program it may be that interpreter's own flag. No behaviour
change.

Refs #3051

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* test(#3055): assert the cross-platform timeout contract, not the macOS one

The remote runner failed on both Linux lanes (node 22 and node 24, identical)
while the same tests passed locally on macOS. Two assertions encoded a
platform-specific behaviour as a cross-platform guarantee.

When spawnSync times out, macOS preserves the child's partial stdout/stderr;
Linux discards it and returns empty strings. Verified on node v26.5.1 both
ways. The seam passes through whatever spawnSync hands it and cannot
manufacture output that was discarded, so the production code was correct —
the tests were wrong.

Both tests now assert the guarantee the seam actually makes on every
platform: outcome TIMED_OUT, timedOut true, and stdout/stderr always being
strings rather than undefined or a Buffer. The partial-content assertions are
retained behind an explicit process.platform === 'darwin' guard so the macOS
coverage is not lost, and the first test is renamed to say what it now
guarantees.

This is the failure mode the remote matrix exists to catch: local macOS
verification would have shipped it.

Refs #3051

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

* fix(#3055): classify a failed spawn as SPAWN_FAILED, not a timeout

Windows CI caught two defects the Linux matrix could not.

tests/context-predicates-query.test.cjs passes a 32K-char argv value. On
Windows that exceeds the argv limit and spawnSync fails with code
ENAMETOOLONG, signal null, status null. The seam's fallback rule — "otherwise,
status === null implies TIMED_OUT" — swallowed it, so the adapter retried a
spawn that can never succeed and then threw the resource-starvation error. The
old isKilled() returned false for that shape and returned an ordinary failure
result.

TIMED_OUT is now identified positively: code === 'ETIMEDOUT' OR signal is set.
Anything else carrying an error is SPAWN_FAILED, which covers ENAMETOOLONG,
E2BIG, EACCES and ENOENT alike. The signal clause is what keeps a platform
whose timeout errno differs classified correctly, so the greedy catch-all is no
longer needed.

The second defect is a contract regression I introduced and had claimed
otherwise. That same test asserts `typeof r.exitCode === 'number'`, and
toLegacyShape was returning null for BUFFER_OVERFLOW and SPAWN_FAILED, so the
assertion failed on type. The old code returned `err.status ?? 1` on every
non-retried failure path. The adapter now returns 1 again for both, and the
comment claiming "never coerced to exitCode:1, unlike the pre-seam helper" is
retracted: the seam keeps the richer truth (exitCode null plus a distinct
outcome), the legacy adapter keeps the old numeric contract its callers
actually depend on.

Verified on this host: a 4MB argv yields E2BIG -> SPAWN_FAILED; ENOENT ->
SPAWN_FAILED; timeout -> TIMED_OUT; >1MB stdout -> BUFFER_OVERFLOW; SIGKILL ->
KILLED; clean exit -> EXITED.

Refs #3051

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

---------

Co-authored-by: sim <sim@local>
Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
2026-08-05 01:06:39 -04:00
Tom Boucher
c7c2fe3c2b fix(#2587): resolve cursor hook workspace from workspace_roots, not cwd (#2680)
* fix(#2587): resolve cursor hook workspace from workspace_roots, not cwd

gsd-cursor-session-start.js and gsd-cursor-stop.js both resolved the project as
path.join(process.cwd(), '.planning', 'STATE.md'). Under the cursor-agent CLI,
hooks are invoked with cwd set to the Cursor config dir (~/.cursor), not the
workspace — so the lookup always missed. sessionStart could only ever emit the
"no .planning/ workflow found" nudge and stop's verify-work reminder could never
fire, even with .planning/STATE.md sitting in the workspace. Slash commands were
unaffected, which is why only the hook layer looked blind.

Both hooks already buffered stdin into `raw` and never parsed it; the payload's
workspace_roots carries the real path.

Multi-root was left open in the report ("first root vs any root"). Resolved
forward: prefer the first root that actually carries .planning/STATE.md, so a
workspace whose GSD project is not the first root still resolves — strictly
better than first-root-only and identical to it in the single-root CLI case.
Falls back to roots[0], then to cwd, keeping IDE behavior unchanged if the IDE
ever invokes hooks from the workspace.

The resolver is duplicated verbatim across the two scripts rather than shared via
hooks/lib/: these hooks ship standalone, and a new hooks/lib/ file must be
registered in the GENERATED installer's GSD_HOOK_LIB_FILES allowlist — the
installer-omits-shipped-file class that yields MODULE_NOT_FOUND at runtime. Per
CLAUDE.md "Generative Fix Divergence", the duplication carries a parity assertion
so the copies cannot drift.

Failing-first, demonstrated by direct invocation with cwd != workspace:
  pre-fix  sessionStart -> "no .planning/ workflow found"   stop -> {}
  post-fix sessionStart -> ".planning/STATE.md is present"  stop -> reminder

tests/fix-2587-cursor-hook-workspace-roots.test.cjs spawns the real scripts as
child processes with a cwd lacking .planning/ and workspace_roots pointing at it.
Boundary coverage on the roots array (0 / 1 / 2 entries), plus malformed-JSON
fail-open, junk-entry filtering, the parity assertion, and a guard that neither
script resolves .planning from cwd again.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015TCwhbMuY37DzRMCfzTABJ

* fix(#2587): extend workspace_roots fix to subagentStart; keep cwd a candidate

Three findings from the isolated review, all fixed.

1. MISSED SITE (high). gsd-cursor-subagent-start.js carried the identical
   defect at line 43 — its own header documents workspace_roots in the input
   schema, but it resolved .planning/ from process.cwd() anyway. Under the
   cursor-agent CLI that meant every Cursor subagent (planner, executor,
   verifier) started with "no .planning/ workflow found" and no phase context.
   The report named only sessionStart and stop; the defect class was wider.
   Verified pre-fix vs post-fix by direct invocation with cwd != workspace.

2. SEMANTIC NARROWING (medium). The first cut searched only workspace_roots and
   fell back to cwd solely when the array was EMPTY. So when roots were supplied
   but none carried .planning/ while cwd did, the hook reported absent — where
   the pre-fix code, which always used cwd, reported present. That contradicted
   the fallback's own stated intent of preserving IDE behavior. cwd is now a
   CANDIDATE in the search (`[...roots, process.cwd()]`), so the fix is a strict
   superset of both the old behavior and the CLI fix, never a narrowing.

3. STALE GOLDEN FIXTURES (high, would have failed CI). The golden-install-parity
   fixtures store a content hash per installed file; these three hooks appear in
   13 of the 19 runtime fixtures. Regenerated via `npm run gen:golden` — the
   diff is exactly the three hook hashes in exactly those 13 runtimes.

Tests extended: subagentStart resolution via workspace_roots; the stop hook's
absent branch (previously only session-start's was covered); an explicit
regression guard that a project at cwd is still found when roots miss; parity now
asserts all THREE copies byte-identical; and the cwd guard sweeps the whole
RESOLVING_HOOKS list so a future hook in this family cannot be left on cwd.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015TCwhbMuY37DzRMCfzTABJ

* refactor(#2587): extract cursor workspace resolution to a shared hooks/lib module

The duplicate-plus-parity-test approach was the wrong call. The reported issue
named two hooks; a third (subagentStart) had the identical defect. That is the
signature of a systemic problem, and three copies of a resolver guarded by a
parity assertion is a divergence risk maintained by hand rather than a fix.

hooks/lib/cursor-workspace.js is now the single implementation. All three Cursor
hooks require it; none defines a local copy. Divergence is prevented
structurally instead of by asserting three copies stay byte-identical.

The reason duplication looked necessary was real, and is fixed properly here
rather than worked around: Cursor sets hostBehaviors.skipSharedHooksInstall
(#2089), so it never reaches the installer's bulk hooks/lib copy — it was the
ONE runtime shipping these hooks WITHOUT hooks/lib (verified against all 19
golden fixtures: cursor had the hook scripts, no lib). A naive require would
have thrown MODULE_NOT_FOUND at load, BEFORE each hook's own try/catch, wedging
every session on precisely the runtime this bug is about.

writeCursorHooksJson (src/runtime-hooks-surface.cts) now stages the hooks/lib
helpers the staged scripts actually require, discovered by scanning their
require('./lib/…') calls rather than a hardcoded name — so a future helper
cannot be silently omitted. This is narrower than flipping
skipSharedHooksInstall, which would wrongly pull in every shared hook.
cursor-workspace.js is also added to GSD_HOOK_LIB_FILES so uninstall and the
manifest manage it for the runtimes that do receive hooks/lib.

Verified against a REAL install (runMinimalInstall, cursor/global): the helper
is staged, and all three INSTALLED hooks resolve the workspace end-to-end from a
cwd that is not the project.

Also closes the review gap that the stop hook was excluded from the
cwd-candidate regression loop — it now sweeps RESOLVING_HOOKS. The byte-parity
test is replaced by a structural guard (every hook requires the shared module,
none redefines it) plus a new install test asserting the helper is staged and
the installed hook actually loads against it.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015TCwhbMuY37DzRMCfzTABJ

* fix(#2587): fail loud on a missing hook lib source; drop unsubstituted version marker

Two findings from the installer-focused review.

H1 — the staging step's `if (!fs.existsSync(libSrc)) continue;` silently defeated
the very guarantee it was added for. Reproduced: delete hooks/lib/cursor-workspace.js
from source, run the cursor install — it exits 0, prints "Done!", and ships the
three hook scripts with an EMPTY hooks/lib/. The installed hook then throws
`Cannot find module './lib/cursor-workspace.js'` at load, before its own
try/catch, wedging every session — and nothing surfaces until a user hits it.
The scan protected against a required-but-UNLISTED helper while leaving
required-but-MISSING wide open (typo, bad rebase, an accidental delete).
It now throws: a missing helper source is a packaging bug and aborts the install.

M1 — hooks/lib/cursor-workspace.js carried a `gsd-hook-version: <placeholder>`
marker that NOTHING substitutes: copyLibDir stamps .sh files only, and
writeCursorHooksJson's staging applies just the colon-to-dash rewrite. Verified
the literal was reaching disk on both the bulk (--claude) and Cursor
(--cursor) paths. hooks/lib/git-cmd.js — the only pre-existing hooks/lib/*.js —
carries no such marker, so this was newly introduced, not inherited. Marker
removed, matching that precedent, with a note on why. (The explanatory comment
deliberately does not spell the token out, or it would reintroduce the literal.)

M2 — the require-scan regex demanded the exact compact form, so
`require( "./lib/x.js" )` would silently fail to stage its helper and compound
H1. Now tolerant of interior whitespace and either quote style.

Regression test added for H1 — the reviewer confirmed the invariant had zero
coverage repo-wide: a source tree carrying the hooks but no hooks/lib/ must make
writeCursorHooksJson throw rather than produce a broken install.

Re-verified end to end: the missing-source case throws, no unsubstituted literal
ships, and the installed hook still resolves the workspace from a foreign cwd.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015TCwhbMuY37DzRMCfzTABJ

* chore(#2587): backfill changeset pr number (#2680)

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-07-26 19:57:58 -04:00