3 Commits

Include renames

Author	SHA1	Message	Date
OrcaWinandOrca Worker	b6ca8dad99	fix(hooks): register the Claude hook script directly on Windows (#18875) (#18905) ... * fix(hooks): register the Claude hook script directly on Windows (#18875) The Windows Claude Code lifecycle hook was registered as `powershell.exe -NoProfile -EncodedCommand <...>` whose entire decoded payload was a `Test-Path` and a call to `~/.orca/agent-hooks/claude-hook.cmd`. Every hook event paid a full PowerShell start-up to reach a script that exits at its first `ORCA_PANE_KEY` guard, so sessions outside Orca paid it to do nothing. Register the script path itself instead, with `|| echo {}` for the neutral-JSON-when-missing contract (#14818). Measured on Windows 11, invoked as Claude Code invokes it (`printf payload | bash -c -l "<command>"`): idle (n=12) baseline 177ms | before 471ms | after 213ms 10-way conc (n=40) -- | before 656ms | after 296ms p95 under load -- | before 696ms | after 337ms It also drops an interpreter from the chain the hook's timeout kill must tear down. Killing the hook does not kill its PowerShell grandchild, which still holds the stdout handle the agent reads to EOF -- measured, EOF arrived 352ms AFTER the kill, when the orphan exited by itself. msys2 creates children suspended and resumes them after, so a kill landing in that window strands one that never exits and EOF never comes; that is the reported frozen session. The encoded launcher stays as the fallback for profile paths the shells cannot carry bare (space, `%`, `^`, `&`, non-ASCII) and for hosts where Git Bash is not resolvable, because PowerShell 5.1 rejects `||`. Every other agent's hook is untouched, as is the remote/SSH path. Not adopted from the report: `cmd.exe /d /c <path>` (MSYS rewrites the `/c` under Git Bash -- measured, the invocation fails), and raising the 10s timeout (the orphan survives the kill regardless; the fast path puts the hook 30x under the budget so the kill effectively stops firing). * fix(build): list the new hook launcher modules in the CLI tsconfig project config/tsconfig.cli.json enumerates its files explicitly, so the two new imports reached by src/main/claude/hook-settings.ts failed tc:cli with TS6307. src/main/git-bash.ts pulls in only node:fs, node:path and a shared constant, so it adds nothing heavy to the CLI project. * fix(hooks): address review of the direct Windows Claude hook launcher - Make the Windows hook suites host-independent. A box with a cmd.exe AutoRun (HKCU\...\Command Processor\AutoRun) failed them at HEAD too: the tests redirect USERPROFILE, the AutoRun target vanishes, and MSYS spawns a .cmd without /d so AutoRun runs and lands on the hook's stderr. Seed an empty target, including under the deliberately-absent profile. - Note in managed-hook-stdin-lifecycle why the "missing managed script" case no longer exercises the fallback for the direct shape (it carries an absolute path, so a redirected profile changes nothing); that path is covered live in windows-direct-cmd-hook-command.test.ts. - Keep the direct shape off UNC profiles: WINDOWS_CMD_SAFE_PATH admits them, but //server/share/... is not a command cmd.exe reliably starts. - Correct the comments: `|| echo {}` also fires when cmd.exe itself exits non-zero (failing AutoRun), printing {} twice. The encoded launcher exited 1 on that same box, so neither shape is clean there. - Test the contract that replaced runtime %USERPROFILE% resolution (STA-3348): a stale absolute path reports not_installed and is rewritten on install. - Record the standing unmeasured assumption in windows-edr-posture.md: `||` does not parse in Windows PowerShell 5.1, so a compat consumer that hosts hook strings there would fail closed. Measure before widening to another agent. - Trim the launcher comments per AGENTS.md; the numbers live in the doc. * test(win32): register the new Windows-gated hook test in the CI lane win32-test-lane-registration guards against exactly this: a Windows-gated file that self-skips on ubuntu and reports success, so it runs on no machine. The new windows-direct-cmd-hook-command.test.ts needs both entries — WINDOWS_PACKAGE_TESTS decides whether package_windows runs for a diff, and the workflow argv decides whether the file runs once that job started. * test(win32): remove the hook temp tree through the retrying helper windows-lane-tree-removal-boundary scans exactly the specs in the Windows CI lane, so registering windows-direct-cmd-hook-command.test.ts subjected it to the rule: cmd.exe and bash have just exited in that tree, and a raw recursive rm throws EPERM on Windows while their handles drain, turning a green spec into a lane failure. Use removeTreeSync, which carries the repo's maxRetries policy. --------- Co-authored-by: Orca Worker <orca-worker@localhost>	2026-09-05 17:50:33 -07:00
Neil	53f105827b	perf(windows): stop asking the process table for memory, and share one projection per snapshot (#18151) ... Two costs on the Windows process-table hot path, plus the EDR doc that described neither of them accurately. 1. The snapshot set `ProcessDataFlag.Memory` and surfaced `memoryBytes`, which nothing read. The addon serves that flag with a second `OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ)` and a `GetProcessMemoryInfo` per process (process.cc:47-63), so the flag was one wasted handle per process per snapshot. 2. The shared TTL cache gave every pane the same native rows array, but each pane still ran `native.map(toProcessRow)` over the whole table, rebuilt a `childrenByPpid` Map from scratch, and did two linear scans. The `.map()` also handed `getProcessTableIndex` a new array each call, defeating the POSIX memo by construction. Both now cache per snapshot identity, and the POSIX resolver drops its duplicate descendant walk. `getProcessTableIndex` / `buildProcessTableIndex` are generic over the row shape so the Windows rows reuse the existing pass instead of a parallel one. No behavior change: same rows in, same rows out, same descendant ordering and same has-children answers.	2026-09-02 13:08:01 -07:00
OrcaWinandOrca Worker	2c4989ea94	docs(windows): document the EDR signal surface (#17856) ... * docs(windows): document the EDR signal surface Six Microsoft Defender for Endpoint incidents fired against Orca 1.4.192 in eight days on one enterprise Windows 11 / Intune tenant. All six were behavioural process-tree scoring, not signature hits; two escalated to multi-stage incidents mapped to ATT&CK Execution and Collection. Add a reference doc mapping each attack-technique-shaped behaviour to the code that produces it and to why it exists: the renamed daemon image (T1036), the per-process PEB read, encoded policy-bypassed PowerShell (T1049), caret-escaped cmd.exe lines, and computer-use screen capture plus runtime-compiled MSIL (T1113). Records that signing is not the gate -- reputation is signer plus hash-keyed prevalence -- and carries the two evidence gaps the report noted. Adds an engineer checklist, deployment guidance for admins (AV path exclusions do not suppress EDR behavioural alerts; an MDE alert suppression rule does), and an explicit pre-deployment warning about computer use. * docs(windows): correct the PowerShell flag inventory and admin paths Review corrections to the EDR posture doc. The "encoded, policy-bypassing PowerShell" list conflated three different shapes and was incomplete. Split it into the three tiers an EDR actually scores differently -- bypass plus encoding, encoding alone, and bypass alone -- and add the sites it missed, including windows-mobile-firewall.ts, which encodes a script and launches it elevated through Start-Process -Verb RunAs. system-fonts.ts (-Command) and desktop-script-provider-bridge.ts (-File) were listed as encoded and are not. Notes that a raw grep under-reports, because the hook sites reach -EncodedCommand through wrapWindowsPowerShellEncodedCommand. Attribute the in-payload Set-ExecutionPolicy move to #16576 rather than to #16003's measurement, which keyed on -WindowStyle Hidden + -EncodedCommand, and record that the launcher's own tradeoff is unverified on a real box. Admin guidance was missing two ways a suppression rule pinned to one full path misses real activity: the .staging-<hex> sibling that exists mid-update, which is when the update-cluster incidents fire, and the userData fallback when LOCALAPPDATA is unset. Also: state the measurement conditions on the process-table timings, note that Hermes has surface even though we have no telemetry for it, note that the uninstaller names are electron-builder-generated and in no repo file, drop a volatile line count, and mark the per-operation computer-use shape as being addressed by an unmerged change. Drops the duplicated AGENTS.md section, keeping the indexed bullet. * docs(windows): reconcile the EDR posture doc with the shipped remediation Three claims in this doc became false once the rest of the Windows EDR set landed, and two told engineers the opposite of what the release does. The process-table section still described one shared snapshot taken with `Memory | CommandLine | CreationTime`, argued that splitting the cache per field set "would restore exactly the fan-out it exists to prevent", and concluded the shape was unfixable because "the information is only in the PEB". The split shipped (identity opens no handle at all), `Memory` is retired, and the command line now comes from the kernel through `ProcessCommandLineInformation` -- `ReadProcessMemory` is absent from the compiled addon and a ratchet asserts it against the import table. An engineer reading the old text would have concluded both fixes were dead ends. The PowerShell site inventories were stale in three of four lists: the port scan went native, every `-ExecutionPolicy Bypass` + `-EncodedCommand` pair was dropped as a measured no-op, and of the unencoded-bypass list only `wsl-cli-scripts.ts` survives. Regenerated against the merged tree, including the sites that reach the flag through `wrapWindowsPowerShellEncodedCommand` and never spell it, which a raw `rg` misses. Incident-evidence sections are left alone: they record what the tenant observed on 1.4.192, not what the code does now. --------- Co-authored-by: Orca Worker <orca-worker@localhost>	2026-09-01 23:21:09 -07:00