PR 30879 real dev verification Head: e8167e1703adaffb8b4c089180f2fbc1c88fd33b Baseline github/main: 9e85538535c8553901351112ab02dd1dd62db5ee Linux Boat VM. Typecheck/check commands executed on task-owned Blacksmith Linux workers through blacksmith-check. Dev app and Playwright/Google Chrome ran locally with isolated .t3 state. No product performance speedup is claimed from these checks. BASELINE: from apps/server, vp run typecheck twice ~/apps/server$ tsc --noEmit ⊘ cache disabled real 8.89 user 25.78 sys 0.80 ~/apps/server$ tsc --noEmit ⊘ cache disabled NO_INCREMENTAL_STATE real 7.56 user 22.80 sys 0.50 PR: same entry point, twice ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ◉ cache hit, replaying --- vp run: cache hit, 11.15s saved. File: node_modules/.cache/tsc/typecheck.tsbuildinfo Size: 1544880 Blocks: 3024 IO Block: 4096 regular file Device: 253,0 Inode: 7093375 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 1001/ runner) Gid: ( 1001/ runner) Access: 2026-11-04 17:03:02.262270738 +0000 Modify: 2026-11-04 17:03:02.266270747 +0000 Change: 2026-11-04 17:03:02.266270747 +0000 Birth: 2026-11-04 17:03:02.262270738 +0000 CORRECTNESS: temporary source edits on worker, restored after checks ### leaf body edit $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ◉ cache hit, replaying --- vp run: cache hit, 19.43s saved. exit=0 ### same leaf edit cached $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ◉ cache hit, replaying --- vp run: cache hit, 19.43s saved. exit=0 ### leaf type error incremental $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ○ cache miss: 'apps/server/src/cli/doctor.ts' modified, executing src/cli/doctor.ts:149:14 - error TS2322: Type 'number' is not assignable to type 'string'. 149 export const typecheckVerification30879: string = 30879; ~~~~~~~~~~~~~~~~~~~~~~~~~~ Found 1 error in src/cli/doctor.ts:149 exit=2 ### leaf type error clean $ vp exec tsc --noEmit --pretty false src/cli/doctor.ts(149,14): error TS2322: Type 'number' is not assignable to type 'string'. exit=2 MATCH: 1 diagnostics ### failed task repeats $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ○ cache miss: 'apps/server/src/cli/doctor.ts' modified, executing src/cli/doctor.ts:149:14 - error TS2322: Type 'number' is not assignable to type 'string'. 149 export const typecheckVerification30879: string = 30879; ~~~~~~~~~~~~~~~~~~~~~~~~~~ Found 1 error in src/cli/doctor.ts:149 exit=2 ### fix leaf error $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ○ cache miss: 'apps/server/src/cli/doctor.ts' modified, executing exit=0 ### shared contract type error incremental $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ○ cache miss: 'packages/contracts/src/project.ts' modified, executing ../../packages/contracts/src/project.ts:574:14 - error TS2322: Type 'number' is not assignable to type 'string'. 574 export const typecheckContractVerification30879: string = 30879; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Found 1 error in ../../packages/contracts/src/project.ts:574 exit=2 ### shared contract type error clean $ vp exec tsc --noEmit --pretty false ../../packages/contracts/src/project.ts(574,14): error TS2322: Type 'number' is not assignable to type 'string'. exit=2 MATCH: 1 diagnostics ### fix shared contract error $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ◉ cache hit, replaying --- vp run: cache hit, 3s saved. exit=0 ### corrupt state and new leaf error incremental $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ○ cache miss: 'apps/server/src/cli/doctor.ts' modified, executing src/cli/doctor.ts:149:14 - error TS2322: Type 'number' is not assignable to type 'string'. 149 export const typecheckVerification30879: string = 30880; ~~~~~~~~~~~~~~~~~~~~~~~~~~ Found 1 error in src/cli/doctor.ts:149 exit=2 ### corrupt state and new leaf error clean $ vp exec tsc --noEmit --pretty false src/cli/doctor.ts(149,14): error TS2322: Type 'number' is not assignable to type 'string'. exit=2 MATCH: 1 diagnostics ### missing compiler state actual recompute $ vp run --no-cache typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ⊘ cache disabled exit=0 ### cache hit without compiler state $ vp run typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ◉ cache hit, replaying --- vp run: cache hit, 3s saved. exit=0 PASS: task cache did not restore excluded compiler state ### root filtered entry point $ vp run --cache --filter t3 typecheck ~/apps/server$ tsc --noEmit --incremental --tsBuildInfoFile node_modules/.cache/tsc/typecheck.tsbuildinfo ◉ cache hit, replaying --- vp run: cache hit, 3s saved. exit=0 ALL BEHAVIOR CHECKS PASSED SCOPED CHECKS $ vp run check:changed github/main check:changed summary pass unused patches 37.9s pass format 0.2s pass lint 0.5s pass knip 1/2 5.5s pass knip 2/2 15.0s pass graphql (apps/server) 0.5s pass typecheck (40 packages) 25.8s pass test (1 files) 16.7s CI also runs: full test suites, build, rust, release smoke pass not cached: files changed during the run RUNTIME main: vp i; background vp run dev --no-seed, server 16733 / web 8693, then stopped captured process group 21377 before PR startup. PR: exact head; vp i; background vp run dev --no-seed --home-dir /home/user/t3code/.t3, server 13773 / web 5733. Playwright from repo dependencies with /usr/bin/google-chrome: paired client, Add project > Local folder > /home/user/verification-repo, selected Codex GPT-6.1-Sol, submitted real file-creation turn. Provider read README.md, created verification.txt, ran cat to confirm. Client displayed completed turn and +1 checkpoint diff. After client reload, conversation persisted; opened checkpoint diff and inspected expected line. Follow-up provider turn read the file and replied RESUME_OK_30879. $ cat /home/user/verification-repo/verification.txt incremental typecheck verification 30879 UNVERIFIED Windows/macOS, Electron shell, native iOS/Android, relay/tunnel connections, remote task-cache upload/download, and statistically controlled performance comparisons.