79:T103f,## The site `pi` reports `packages/ai/src/utils/provider-env.ts:26:17 - error SC1090: library functions as values (call 'readFileSync' directly)` in every round of its build (round 1 has 193 diagnostics, round 2 76, round 3 67; only the last round's list is printed). It is not a round-3 artifact. ## Root cause `islandModuleFile`'s bare-specifier branch resolved with the runtime-JS pass only. For a workspace package whose `exports` map points a subpath at TypeScript source (`"./utils/*": { "types": "./src/utils/*.ts", "import": "./src/utils/*.ts" }`), that pass answers nothing — pi's `packages/ai` has no runnable JS entry. An import of an island module over such a bare subpath (`cache-warmer.ts:10`) therefore never bound to the island, and the island module's body was compiled natively, where `readFileSync`'s cast-typed callee hits the library-function-as-value fence. Relative specifiers take `relativeIslandFile` and work, which is why the earlier isolated probes and corpus program did not reproduce it. ## Fix `lower-node-island.ts`, `islandModuleFile`, bare branch: when the runtime-JS pass answers nothing, fall back to `resolveBareModule(..., "runtime-source", ...)` and accept the answer only if `islandOwnerOfFile` names an island, so an unrelated resolution can never become an island import. An early return when the island set owns no packages keeps programs without islands on exactly the old path. The fallback answers import edges only (7adc37cc4, from review): it resolves with Node's import conditions, and a package may map `"require"` to another file, so a `require()` keeps the answer it had before, which binds nothing. ## Evidence - New differential corpus program `tests/corpus/8998-node-island-workspace-reader/`: a workspace package `@probe/ai` mapping `./utils/*` to TS source, an island reader module that reads through a patched `fs.readFileSync`, and a native module importing it by bare subpath. It fails to compile before the change and matches Node after (`differential.test.ts -t 8998-node-island-workspace-reader` → 1 passed). - `node-islands` unit tests: 161 passed. Node island harness: 34 passed, 1 failed (`Node ignores NODE_OPTIONS from the program's environment`), which fails identically on the unmodified compiler. - `pnpm test:ts7 --baselines-only` complete; `order-parity.test.ts` 121/121 passed. - New unit test `packages/compiler/src/frontend/lowering/lower-node-island.test.ts`: a workspace package whose `exports` map names one source file for `"import"` and another for `"require"`. The import edge answers the island file; the require edge answers nothing. Without the import-only guard the require case returns the import's file (1 failed, 2 passed); with it 3 passed. `node-islands` unit tests with it: 164 passed. - On 7adc37cc4 in a sandbox: `differential.test.ts -t 8998-node-island-workspace-reader` passes plain and under `SCRIPTC_SAN=1`; `differential.test.ts -t node-island` is 78 passed, 1 failed. The failure is `6863-node-island-native-arrays` (V8 `Check failed: isolate_->IsOnCentralStack()` inside the sandbox's libnode pack); it fails the same way with the guard removed, and CI passes it. `pnpm lint` and `pnpm format:check` are clean. - Zero-cost gate (`bin/validate --skip=lanes,bench,t262,san-bootstrap --gate-corpus=all`) on 7adc37cc4: PASS in 14.1 min — 5175 identical, 95 both-fail over 8 shards, no differing program, no `runtime-only` row; bench geomean −0.04 %, fixtures geomean +0.38 %, self +1.75 % (reported inconclusive; the compiler's own build has no island set, so it never reaches the changed branch). The same gate passed on 8567c8677 (18.1 min) and d7c9d1fcf (20.4 min). - The native bootstraps were not run for this PR. An earlier version of this description said the second gate run included them; it did not (`--skip=lanes` leaves them out). The change is reached only with a non-empty island set, which the compiler's own build does not have. - pi: 67 → 66 diagnostics, and `diff` of the two lists is exactly the `provider-env.ts:26:17` line. No other diagnostic changed. 🤖 Generated with [Claude Code](https://claude.com/claude-code) 7a:Tef3,The latest updates on your projects. Learn more about [Vercel for GitHub](https://vercel.link/github-learn-more). | Project | Deployment | Actions | Updated | |:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |:------------------------------------------------------------------------------------------ | | [scriptc](https://vercel.com/vercel-labs/scriptc) | ![Ready](https://cdn.trylle.com/media/images/c6f97f6a2d9a50bb079b9c2120bcabc5?key=Aag9OPWPryCkgfLUMIUiriowtODh4hqHlmlzdftFmfU8NF62NmcRWEZYaAzSgjXFV7CRHFmtwIUXQzGW%2FMiYFGynEBRM2ZcoaM4U6O0OS8PmNZa7IXMfoNTDcz9NEzKc17c%2BcAPOWyxWJVBjzZRRTanNPzdCPpYzbuN8NGKPs87X) [Ready](https://vercel.com/vercel-labs/scriptc/Go9ZEyBgqFJvLAWFirpGCjy7hQQn) | [Preview](https://scriptc-git-fix-penv-round3.labs.vercel.dev), [v0](https://v0.app/chat/api/open?vercelProjectId=prj_goqnlogfpmS51K3HvPpk2j0dfOsf&gitBranch=fix%2Fpenv-round3&vercelTeamId=team_nO2mCG4W8IxPIeKoSsqwAxxB&utm_source=pr-comment-table) | Nov 7, 2026 12:08am UTC | 7b:T483,Resolve a bare subpath to its island file when Node names no runtime entry islandModuleFile resolved bare specifiers with the runtime-JS pass only. A workspace package that exports TypeScript source (its exports map "import" to "./src/utils/*.ts") has no runnable entry under Node's conditions, so the pass answered nothing and an import of its island module resolved to no island file at all: the importing module bound the export like an ordinary native function and lowering compiled the island module's body, hitting the builtin value fence (pi's cache-warmer.ts -> @earendil-works/pi-ai/utils/ provider-env -> fs.readFileSync "library functions as values"). Fall back to the source resolution, accepted only when the answer names a file an island owns, and skip the second resolution when the island set is empty so a program without islands resolves exactly as before. Corpus: 8998-node-island-workspace-reader reaches an island reader module over a bare workspace subpath from a native module and prints the shared patch; it fails to compile before this change and matches Node after it. Co-Authored-By: Claude Opus 5.5 63:["$","$L76",null,{"entries":[{"key":["platform",{"userId":"anon"},"pulls","page",{"owner":"vercel-labs","repo":"scriptc","pullNumber":3095}],"data":{"repositoryId":"4711","detail":{"author":{"avatarUrl":"https://cdn.trylle.com/media/images/36df2a6340c10c1a29667215cbcb4a8b?key=Ab1fa8eGn4DcinfyZcw8aGmo2p0rlOx%2FkiWK%2FpSm%2B2LgBf79wDgXit0vlEaVOtw%2F7uD7PxZBTnZMTLF2298IK09%2B0CBH07l8a8rQnHNtBuaAc5bP%2FSznzsK6rjN7aTQsuhV6Cdyx6XvT0b%2FmLMQ9ZxqEfrDvmXKylxZMeInMjpfuW9hLcIOybA%3D%3D","externalProvider":"github","login":"cramforce","type":"User","url":"https://github.com/cramforce"},"authorId":"89679","baseRefName":"main","closedAt":null,"comments":5,"createdAt":"2026-11-06T21:11:54Z","headRefName":"fix/penv-round3","id":"4974043","isDraft":false,"labels":[],"number":3095,"repository":{"name":"scriptc","owner":"vercel-labs","provider":"forgejo"},"state":"open","title":"Resolve a bare subpath to its island file when Node names no runtime entry","updatedAt":"2026-11-07T00:09:11Z","url":"https://trylle.com/vercel-labs/scriptc/pulls/3095","body":"$79","additions":180,"deletions":3,"changedFiles":11,"commits":3,"reviewComments":4,"headSha":"7adc37cc4cb3f7c4662468d6acdb6348051846b0","baseSha":"0f6f1d40196c553cf55ef2f5dd12f28ce8a870f8","headRepoOwner":"vercel-labs","headRepoName":"scriptc","isMerged":false,"mergeCommitSha":null,"mergedBy":null,"mergeable":false,"mergeableState":"dirty","conflictingFiles":["packages/compiler/src/frontend/lowering/lower-node-island.test.ts"],"requestedTeams":[],"requestedReviewers":[],"graphqlId":"issue:3095"},"comments":[{"id":27106975,"graphqlId":"27106975","body":"$7a","createdAt":"2026-11-06T21:11:58Z","author":{"avatarUrl":"https://cdn.trylle.com/media/images/bd21565b4b886e5cef0db32c7f0344af?key=Ac2%2Bksi1LIlNHkTtZAwXv6tt09t6J3yi307LJjxqX4WJV7V2s6%2BI0Envy0ptnh0BgWnFPJBIWHoaJP7O2PIdz4%2FDyORhprU5SMAs88biowmDdp5P5wEqJwK9hocc32DyIwf1dkRFfPk7p4jIYoYYJT1K1dXJsF971VaTxvZB7cj8CL47nQE27ziOhg%3D%3D","externalProvider":"github","login":"vercel[bot]","type":"Bot","url":"https://github.com/apps/vercel"}}],"commits":[{"sha":"7adc37cc4cb3f7c4662468d6acdb6348051846b0","message":"Keep a require edge off the import edge's island file\n\nThe source fallback in islandModuleFile resolves with Node's import\nconditions. A require() of a source-only workspace package whose exports\nmap names another file for \"require\" fell through to it and answered the\nimport's island file, so the call would have run the wrong module. The\nfallback now answers import edges only; a require keeps the answer it had\nbefore the fallback existed.\n\nlower-node-island.test.ts builds such a package and asks for both edges.\nWithout the guard the require case answers the import's file.\n\nCo-Authored-By: Claude Code \n","createdAt":"2026-11-06T15:52:36-08:00","author":{"avatarUrl":"","login":"","name":"Malte Ubl","type":"User","url":""},"verification":{"verified":false,"reason":"gpg.error.no_gpg_keys_found"}},{"sha":"d7c9d1fcf4823d9827be15e30393fe1d880de6be","message":"Record the workspace-reader corpus program's preflight/order baseline\n\nCo-Authored-By: Claude Opus 5.5 \n","createdAt":"2026-11-06T13:01:16-08:00","author":{"avatarUrl":"","login":"","name":"Malte Ubl","type":"User","url":""},"verification":{"verified":false,"reason":"gpg.error.no_gpg_keys_found"}},{"sha":"8567c86776c2ffe9a95179552c13ccc011aaa207","message":"$7b","createdAt":"2026-11-06T12:46:37-08:00","author":{"avatarUrl":"","login":"","name":"Malte Ubl","type":"User","url":""},"verification":{"verified":false,"reason":"gpg.error.no_gpg_keys_found"}}],"events":[{"id":27107131,"event":"reviewed","createdAt":"2026-11-06T21:14:36Z","actor":{"avatarUrl":"https://cdn.trylle.com/media/images/bd21565b4b886e5cef0db32c7f0344af?key=Ac2%2Bksi1LIlNHkTtZAwXv6tt09t6J3yi307LJjxqX4WJV7V2s6%2BI0Envy0ptnh0BgWnFPJBIWHoaJP7O2PIdz4%2FDyORhprU5SMAs88biowmDdp5P5wEqJwK9hocc32DyIwf1dkRFfPk7p4jIYoYYJT1K1dXJsF971VaTxvZB7cj8CL47nQE27ziOhg%3D%3D","externalProvider":"github","login":"vercel[bot]","type":"Bot","url":"https://github.com/apps/vercel"},"reviewId":3653729,"reviewState":"COMMENT"},{"id":27107133,"event":"reviewed","createdAt":"2026-11-07T00:08:34Z","actor":{"avatarUrl":"https://cdn.trylle.com/media/images/36df2a6340c10c1a29667215cbcb4a8b?key=Ab1fa8eGn4DcinfyZcw8aGmo2p0rlOx%2FkiWK%2FpSm%2B2LgBf79wDgXit0vlEaVOtw%2F7uD7PxZBTnZMTLF2298IK09%2B0CBH07l8a8rQnHNtBuaAc5bP%2FSznzsK6rjN7aTQsuhV6Cdyx6XvT0b%2FmLMQ9ZxqEfrDvmXKylxZMeInMjpfuW9hLcIOybA%3D%3D","externalProvider":"github","login":"cramforce","type":"User","url":"https://github.com/cramforce"},"reviewId":3653730,"reviewState":"COMMENT"},{"id":27107135,"event":"reviewed","createdAt":"2026-11-07T00:08:59Z","actor":{"avatarUrl":"https://cdn.trylle.com/media/images/bd21565b4b886e5cef0db32c7f0344af?key=Ac2%2Bksi1LIlNHkTtZAwXv6tt09t6J3yi307LJjxqX4WJV7V2s6%2BI0Envy0ptnh0BgWnFPJBIWHoaJP7O2PIdz4%2FDyORhprU5SMAs88biowmDdp5P5wEqJwK9hocc32DyIwf1dkRFfPk7p4jIYoYYJT1K1dXJsF971VaTxvZB7cj8CL47nQE27ziOhg%3D%3D","externalProvider":"github","login":"vercel[bot]","type":"Bot","url":"https://github.com/apps/vercel"},"reviewId":3653731,"reviewState":"COMMENT"}],"reviews":[{"id":3653732,"state":"REQUEST_REVIEW","author":{"avatarUrl":"https://cdn.trylle.com/media/images/47af653d946a34653a828840b5173c70?key=AZwxNcGKT4fvBETrJYXDRwsAlBqx%2BK3boaY%2FF2B4LzUdySvRwHBUjMiM67ZXi7%2FenX8MGTyyjyl4UDn2H%2BwowBhMsjP2D84I9VU%2Fj6eD4zvWiTbACmp%2FNIAHNnneI6ikq9fg1ugSJbBoamwo8Wp75MLZ%2FlAYHTG%2FMBq3u4YpyL4ArRMCjc5SxMs%3D","externalProvider":"github","login":"ctate","type":"User","url":"https://github.com/ctate"},"submittedAt":"2026-11-06T21:11:54Z","official":false},{"id":3653729,"state":"COMMENT","author":{"avatarUrl":"https://cdn.trylle.com/media/images/bd21565b4b886e5cef0db32c7f0344af?key=Ac2%2Bksi1LIlNHkTtZAwXv6tt09t6J3yi307LJjxqX4WJV7V2s6%2BI0Envy0ptnh0BgWnFPJBIWHoaJP7O2PIdz4%2FDyORhprU5SMAs88biowmDdp5P5wEqJwK9hocc32DyIwf1dkRFfPk7p4jIYoYYJT1K1dXJsF971VaTxvZB7cj8CL47nQE27ziOhg%3D%3D","externalProvider":"github","login":"vercel[bot]","type":"Bot","url":"https://github.com/apps/vercel"},"submittedAt":"2026-11-06T21:14:36Z","official":false},{"id":3653730,"state":"COMMENT","author":{"avatarUrl":"https://cdn.trylle.com/media/images/36df2a6340c10c1a29667215cbcb4a8b?key=Ab1fa8eGn4DcinfyZcw8aGmo2p0rlOx%2FkiWK%2FpSm%2B2LgBf79wDgXit0vlEaVOtw%2F7uD7PxZBTnZMTLF2298IK09%2B0CBH07l8a8rQnHNtBuaAc5bP%2FSznzsK6rjN7aTQsuhV6Cdyx6XvT0b%2FmLMQ9ZxqEfrDvmXKylxZMeInMjpfuW9hLcIOybA%3D%3D","externalProvider":"github","login":"cramforce","type":"User","url":"https://github.com/cramforce"},"submittedAt":"2026-11-07T00:08:34Z","official":false},{"id":3653731,"state":"COMMENT","author":{"avatarUrl":"https://cdn.trylle.com/media/images/bd21565b4b886e5cef0db32c7f0344af?key=Ac2%2Bksi1LIlNHkTtZAwXv6tt09t6J3yi307LJjxqX4WJV7V2s6%2BI0Envy0ptnh0BgWnFPJBIWHoaJP7O2PIdz4%2FDyORhprU5SMAs88biowmDdp5P5wEqJwK9hocc32DyIwf1dkRFfPk7p4jIYoYYJT1K1dXJsF971VaTxvZB7cj8CL47nQE27ziOhg%3D%3D","externalProvider":"github","login":"vercel[bot]","type":"Bot","url":"https://github.com/apps/vercel"},"submittedAt":"2026-11-07T00:08:59Z","official":false}],"stackEvents":[],"commentPagination":{"totalCount":5,"perPage":30,"loadedPages":[1]},"eventPagination":{"loadedPages":[1],"hasMore":false},"headRefDeleted":false},"fetchedAt":1794570229257}],"children":"$L7c"}] 65:null 6c:[["$","title","0",{"children":"Commits · Resolve a bare subpath to its island file when Node names no runtime entry · vercel-labs/scriptc | Trylle"}],["$","meta","1",{"name":"description","content":"Commits on Resolve a bare subpath to its island file when Node names no runtime entry (#3095) in vercel-labs/scriptc."}],["$","meta","2",{"name":"application-name","content":"Trylle"}],["$","link","3",{"rel":"manifest","href":"/manifest.json","crossOrigin":"$undefined"}],["$","meta","4",{"name":"keywords","content":"Commits · Resolve a bare subpath to its island file when Node names no runtime entry · vercel-labs/scriptc, vercel-labs/scriptc, vercel-labs/scriptc repository, scriptc, TypeScript repository, source code, trylle, agent-native git platform, git platform for agents and humans, git platform for ai agents, coding agent pull requests, ai code review, repository automation, stacked pull requests, two-way github sync, github-compatible actions, try cli"}],["$","meta","5",{"name":"robots","content":"index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"}],["$","meta","6",{"name":"mobile-web-app-capable","content":"yes"}],["$","meta","7",{"name":"googlebot","content":"index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1"}],["$","meta","8",{"name":"twitter:domain","content":"trylle.com"}],["$","meta","9",{"name":"twitter:url","content":"https://trylle.com/vercel-labs/scriptc/pulls/3095/commits"}],["$","link","10",{"rel":"canonical","href":"https://trylle.com/vercel-labs/scriptc/pulls/3095/commits"}],["$","meta","11",{"name":"format-detection","content":"telephone=no"}],["$","meta","12",{"name":"mobile-web-app-capable","content":"yes"}],["$","meta","13",{"name":"apple-mobile-web-app-title","content":"Trylle"}],["$","meta","14",{"name":"apple-mobile-web-app-status-bar-style","content":"black-translucent"}],["$","meta","15",{"property":"og:title","content":"Commits · Resolve a bare subpath to its island file when Node names no runtime entry · vercel-labs/scriptc | Trylle"}],["$","meta","16",{"property":"og:description","content":"Commits on Resolve a bare subpath to its island file when Node names no runtime entry (#3095) in vercel-labs/scriptc."}],["$","meta","17",{"property":"og:url","content":"https://trylle.com/vercel-labs/scriptc/pulls/3095/commits"}],["$","meta","18",{"property":"og:site_name","content":"Trylle"}],["$","meta","19",{"property":"og:locale","content":"en_US"}],["$","meta","20",{"property":"og:image","content":"https://trylle.com/api/og.png?kind=repo&owner=vercel-labs&repo=scriptc"}],["$","meta","21",{"property":"og:image:secure_url","content":"https://trylle.com/api/og.png?kind=repo&owner=vercel-labs&repo=scriptc"}],["$","meta","22",{"property":"og:image:type","content":"image/png"}],["$","meta","23",{"property":"og:image:width","content":"1200"}],["$","meta","24",{"property":"og:image:height","content":"630"}],["$","meta","25",{"property":"og:image:alt","content":"vercel-labs/scriptc repository preview on Trylle"}],["$","meta","26",{"property":"og:type","content":"website"}],["$","meta","27",{"name":"twitter:card","content":"summary_large_image"}],["$","meta","28",{"name":"twitter:site","content":"@trylle"}],["$","meta","29",{"name":"twitter:title","content":"Commits · Resolve a bare subpath to its island file when Node names no runtime entry · vercel-labs/scriptc | Trylle"}],["$","meta","30",{"name":"twitter:description","content":"Commits on Resolve a bare subpath to its island file when Node names no runtime entry (#3095) in vercel-labs/scriptc."}],["$","meta","31",{"name":"twitter:image","content":"https://trylle.com/api/og.png?kind=repo&owner=vercel-labs&repo=scriptc"}],["$","meta","32",{"name":"twitter:image:alt","content":"vercel-labs/scriptc repository preview on Trylle"}],["$","link","33",{"rel":"icon","href":"/favicon.png","type":"image/png"}],["$","link","34",{"rel":"icon","href":"/favicon-white.png","type":"image/png","media":"(prefers-color-scheme: dark)"}],"$L7d","$L7e"]

Commits on Fri, Nov 6, 2026