PR #33898 real dev verification

Baseline: github/main 8df455c09b, /home/user/main; installed with vp i.
Candidate: 7078ae28d248f6c7b7ec64cee152d3aef534ed1a, /home/user/t3code; installed with vp i.
Linux x64, Node v24.22.1, /usr/bin/google-chrome, repo Playwright.
One dev server at a time; baseline stopped by captured process group. Candidate uses explicit --home-dir /home/user/t3code/.t3, no seeded data.

1. Import boundary reproduction (runtime module-resolution trace, not a timing benchmark)
Command: node --experimental-loader /tmp/import-boundary-loader.mjs /tmp/terminal-import.mjs file:///<checkout>/apps/server/src/terminal/Manager.ts
Loader logs resolved modules; entry imports Manager.ts and lets loader messages flush.
Main loaded:
apps/server/src/provider/ProviderInstanceRegistryHydration.ts
apps/server/src/provider/Drivers/ClaudeDriver.ts
apps/server/src/provider/Drivers/CodexDriver.ts
packages/provider-cursor/src/server/driver.ts
packages/provider-fx/src/server/driver.ts
packages/provider-grok/src/server/driver.ts
packages/provider-opencode/src/server/driver.ts
packages/provider-muse/src/server/driver.ts
packages/provider-pi/src/server/driver.ts
packages/provider-kiro/src/server/driver.ts
Candidate loaded these same heavy paths: 0
Both imports completed. Lightweight home/environment helpers and an ACP registry import remain; no claim that every provider-related module disappears.

2. Running server protocol, actual PTYs
Project and thread created in web UI, project rooted at /home/user/t3code, a real repository.
The browser called server.updateSettings, terminal.open, terminal.write, terminal.attach and terminal.close over authenticated /ws, using the app's RPC protocol.
Configured a Codex instance with real local config, changed its sensitive environment variable and homePath between terminal opens. Values below are task-created settings, not credentials.
Baseline output:
[
  {
    "stage": "original",
    "secretRedacted": true
  },
  {
    "stage": "original",
    "status": "running",
    "output": "BOUNDARY_RESULT secret=boundary-original override=provider terminal=terminal home=/home/user/.codex"
  },
  {
    "stage": "refreshed",
    "secretRedacted": true
  },
  {
    "stage": "refreshed",
    "status": "running",
    "output": "BOUNDARY_RESULT secret=boundary-refreshed override=provider terminal=terminal home=/home/user/boundary-codex-home"
  },
  {
    "missingProvider": "TerminalProviderInstanceNotFoundError"
  }
]

Candidate output:
[
  {
    "stage": "original",
    "secretRedacted": true
  },
  {
    "stage": "original",
    "status": "running",
    "output": "BOUNDARY_RESULT secret=boundary-original override=provider terminal=terminal home=/home/user/.codex"
  },
  {
    "stage": "refreshed",
    "secretRedacted": true
  },
  {
    "stage": "refreshed",
    "status": "running",
    "output": "BOUNDARY_RESULT secret=boundary-refreshed override=provider terminal=terminal home=/home/user/boundary-codex-home"
  },
  {
    "missingProvider": "TerminalProviderInstanceNotFoundError"
  }
]

Disabled configured instances resolve for terminals as on main; missing IDs return TerminalProviderInstanceNotFoundError.

3. Real client/provider path
On both versions: selected GPT-6.1-Sol in web composer and sent 'Reply with exactly: provider boundary verified. Do not edit files or run commands.'
Both streamed and completed: provider boundary verified.
On candidate: enabled Boundary Codex, selected its GPT-6.1-Sol entry, and completed a provider handoff and additional real turns through the local proxy. A real shell tool checked the configured home and environment without printing the sensitive value.
Observed: provider_env home=/home/user/boundary-codex-home override=provider secret_refreshed=yes
Ordinary web terminal: PR_PTY_OK cwd=/home/user/t3code

4. Focused checks through Blacksmith
vp test run apps/server/src/terminal/Manager.test.ts apps/server/src/serverSettings.test.ts apps/server/src/provider/ProviderInstanceRegistryHydration.test.ts
3 files passed, 159 tests passed.
vp test run apps/server/src/peer/RemoteDelegation.test.ts apps/server/src/peer/PeerForwarding.test.ts apps/server/src/mcp/toolkits/orchestrator/tools.test.ts
3 files passed, 36 tests passed.
GitCafe status at head 7078ae2: 33 successful checks, 0 failing, 0 pending.

No source edits, commits or pushes.
Not verified: Windows/macOS, native desktop/mobile clients, other real providers, remote/relay/tunnel connections, packaged or large-data startup, end-to-end performance or memory improvements.