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fix: raise gbrain version-probe timeout to 10s on Windows

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On Windows the gbrain CLI is a .cmd shim that runs `bun run cli.ts`.
A cold spawn takes over the 2s timeout in resolveGbrainBin (warm runs
are ~700ms), so the probe times out, localEngineStatus classifies the
engine as "no-cli", and the 60s status cache then serves that false
negative to every skill preamble and sync run. /sync-gbrain skips the
memory stage with "gbrain CLI not on PATH" even though the CLI works.

Give the shim 10s of headroom, gated on NEEDS_SHELL_ON_WINDOWS so
POSIX keeps the cheap 2s probe. Applies to both resolveGbrainBin and
readGbrainVersion.

Observed on Windows 11, bun 1.3.14, gbrain 0.42.59.0.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
vaston-viji
2026-08-16 10:59:07 -07:00
committed by Garry Tan
co-authored by Claude Fable 5
parent c4e2233832
commit af23375aa2
1 changed files with 6 additions and 2 deletions
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lib/gbrain-local-status.ts
+6 -2
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@@ -221,6 +221,10 @@ function hashPath(p: string): string {
* call share one fork-exec (~200ms saved per skill preamble).
*/
const _gbrainBinCache = new Map<string, string | null>();
// On Windows the shim is `gbrain.cmd` → `bun run cli.ts`; a cold spawn can
// exceed 2s, and a false negative here poisons the 60s status cache with
// "no-cli". Give the shim headroom; POSIX keeps the tight timeout.
const VERSION_PROBE_TIMEOUT_MS = NEEDS_SHELL_ON_WINDOWS ? 10_000 : 2_000;
export function resolveGbrainBin(env?: NodeJS.ProcessEnv): string | null {
const e = env ?? process.env;
const key = e.PATH || "";
@@ -229,7 +233,7 @@ export function resolveGbrainBin(env?: NodeJS.ProcessEnv): string | null {
try {
execFileSync("gbrain", ["--version"], {
encoding: "utf-8",
timeout: 2_000,
timeout: VERSION_PROBE_TIMEOUT_MS,
stdio: ["ignore", "ignore", "ignore"],
env: e,
shell: NEEDS_SHELL_ON_WINDOWS, // #1731: gbrain is a .cmd shim on Windows
@@ -252,7 +256,7 @@ export function readGbrainVersion(env?: NodeJS.ProcessEnv): string {
try {
const out = execFileSync("gbrain", ["--version"], {
encoding: "utf-8",
timeout: 2_000,
timeout: VERSION_PROBE_TIMEOUT_MS,
stdio: ["ignore", "pipe", "ignore"],
env: e,
shell: NEEDS_SHELL_ON_WINDOWS, // #1731: gbrain is a .cmd shim on Windows