# Evidence index — compressed Codex rollout import

Issue [#21755](https://git.cafe/pingdotgg/t3code/issues/21755). Final head [6053165ce2](https://git.cafe/pingdotgg/t3code/commit/6053165ce2bb536cf9bd957809c398bd12b41ad7), merged origin/main [b5a226e49c](https://git.cafe/pingdotgg/t3code/commit/b5a226e49c52ecab4ddc2d678a7012d97e651a6a). No PR open at evidence capture.

## Required proof

Red at [23ab0127fd](https://git.cafe/pingdotgg/t3code/commit/23ab0127fdfb3497bd06037b5e5a59c41760c078): 2 failed / 53 passed, exit 1. This revision is base [70e5e384da](https://git.cafe/pingdotgg/t3code/commit/70e5e384dab96a1d1e4a253ee5a9415ed5d8ce30) plus regression tests only; scanner blob matches base. Both compressed discovery and history import return an empty array instead of the expected data.

Green at final head: 55/55 passed, exit 0. Exact command for both: `vp test run apps/server/src/project/AgentSessionScanner.test.ts`. Only the focused scanner suite ran; no broad typecheck. Red used installed modules in a detached throwaway worktree; that worktree was removed. Active checkout was not edited.

Primary's integrated app run: baseline plain project visible/imported, compressed-only project absent; plain decompression workaround made compressed project discoverable. Workaround removed before after verification. After at [1b9d71afe4](https://git.cafe/pingdotgg/t3code/commit/1b9d71afe4eddd753566974945b61a0dab1bbb2e), compressed project count 1 is visible and importing it shows expected user and assistant history; plain project remains count 1. Scanner implementation and tests are byte-identical between that app-verified revision and final head. Changes pulled from main concern unrelated assets/media/path handling and merge messages; they were not independently app-verified here.

## Downloadable evidence

- [red-23ab0127fd.stdout.txt](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/2ce59b13fb7e3bd5/red-23ab0127fd.stdout.txt)
- [green-6053165ce2.stdout.txt](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/e0243ac0437c519c/green-6053165ce2.stdout.txt)
- [runtime-before-after.md](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/f9eef7b789638d7b/runtime-before-after.md)
- [reproduce-tests.md](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/1717e959028cb52e/reproduce-tests.md)
- [revision-manifest.json](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/d384564842782332/revision-manifest.json)

## Proof scope and limitations

[Proof audit](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/f77b5259776f9966/issue-21755-proof-audit-pass-1.md) grants server-only exception: visual matrix empty (0 rows), viewport/theme matrix empty, recordings not required. No rendering code changed in the fix. Existing lists receive newly discovered data; counts/history are behavioral outcomes. Other seeded threads, settled counts and clock drift in screenshots are supplemental context, not pixel proof.

Runtime: Linux x86_64, Chrome 154, local Node web dev app. Desktop/Electron on macOS unverified; no claims for Windows, mobile, other browsers, remote/relay/tunnel or multi-environment operation. Fixtures are synthetic Codex-format zstd frames, not a real long-lived account. Import requires no provider account: the warning concerns starting future turns; no turn was submitted. Dedicated compressed corruption/truncation, expanded-size limits and fallback-ID tests remain coverage gaps described in the audit.

The runtime transcript links all existing screenshots. Selected supplemental captures:

Before — compressed project absent, plain control visible:

![Before: plain project discovered while compressed project is absent](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/4b04fda66ea4ddc7/browser-screenshot-localhost-mvip4ls5-9e87d3b7.png)

After — compressed project and plain control each discovered with count 1:

![After: compressed project and plain control discovered](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/e38f9b3abac32d6d/browser-screenshot-localhost-mvirb1wy-8fb3b870.png)

After — imported compressed conversation:

![After: imported compressed user and assistant history](https://gh-file-drop-api-prod-mi5fy3sowv63ufte.pinglabs.workers.dev/f/b0f1665a602e4195/browser-screenshot-localhost-mvirbj6z-1d5b0d38.png)

Uploaded using the [ghdrop skill](https://github.com/juliusmarminge/gh-file-drop). Packaging agent launched no server/browser, changed no implementation, pushed nothing and made no forge mutation.

FRICTION tool | Web fetch could not open the supplied audit attachment; curl retrieved it successfully. | Use a direct attachment download when web extraction rejects a file URL.