Commit Graph

130 Commits

Author SHA1 Message Date
Carlos Florêncio 0f8da4ff28 fix: unblock release desktop and universal builds (#1522) 2026-06-28 20:35:59 +01:00
Carlos Florêncio 14a5fb2c7f fix: support unsigned desktop releases (#1520) 2026-06-28 19:13:16 +01:00
Carlos Florêncio 211e738ec0 fix: reuse worktrees for same-task handoffs (#1510) 2026-06-27 15:00:38 +01:00
Carlos Florêncio 9484bc33d9 fix: prime task create last-used cache before dialog effects (#1509) 2026-06-27 00:01:28 +01:00
Carlos Florêncio 5252a55199 fix: improve pr ci automation reliability (#1508) 2026-06-27 00:01:05 +01:00
Carlos Florêncio 49c482bd4d fix: prevent leaked agent processes on shutdown (#1498) 2026-06-26 10:09:23 +01:00
Nicolas Lenepveu 5021066d78 feat: bind repository to Linear/Jira/Sentry issue watchers (#1491) 2026-06-25 18:33:15 +01:00
Carlos Florêncio 81ef4fb5e5 fix: clean office workspace data on delete (#1486) 2026-06-25 10:28:52 +01:00
Carlos Florêncio a28c4226de fix: make schema migrations replayable (#1489) 2026-06-25 10:28:42 +01:00
Carlos Florêncio 7e92f8da7a feat: add tauri desktop app (#1478) 2026-06-24 23:02:50 +01:00
Carlos Florêncio 4d19fb32f1 feat: link tasks to github references (#1471) 2026-06-23 17:28:52 +01:00
Carlos Florêncio 6126edb203 feat: add subtask completion trigger (#1473) 2026-06-23 16:07:10 +01:00
Carlos Florêncio e91975be17 feat: improve ci auto-fix prompt control (#1474) 2026-06-23 15:58:11 +01:00
Carlos Florêncio 991c7817ad fix: stop task runtimes from leaking (#1465) 2026-06-23 12:07:46 +01:00
Carlos Florêncio 4f9407ed54 fix: show queued CI auto-fix prompts in order (#1463) 2026-06-22 15:50:14 +01:00
Carlos Florêncio c763ece50a docs: refresh harness guidance (#1458) 2026-06-22 15:36:46 +01:00
Carlos Florêncio a9ed563749 fix: stop run-mode automation agents (#1459) 2026-06-22 14:57:11 +01:00
Carlos Florêncio da45983c4c feat: add native kandev launcher (#1391) 2026-06-20 19:40:15 +01:00
Carlos Florêncio f4a906884f fix: stop CI auto-fix on non-actionable feedback (#1452) 2026-06-20 19:36:19 +01:00
Carlos Florêncio 7ada858f17 feat: add CI PR automation controls (#1446) 2026-06-20 10:05:25 +01:00
Carlos Florêncio aee1846cd5 feat: remove nextjs production runtime (#1389) 2026-06-18 18:36:48 +01:00
Carlos Florêncio 6a7bf92893 docs: refresh feature documentation (#1424) 2026-06-18 12:00:57 +01:00
Carlos Florêncio d8436dfd8f feat: improve passthrough composer and session recovery (#1411) 2026-06-17 19:01:42 +01:00
Carlos Florêncio fcd2cc00e9 fix: open markdown file links with line suffixes (#1404) 2026-06-17 08:08:44 +01:00
Carlos Florêncio f9608ba52d fix: expose kandev mcp tools to pi (#1401) 2026-06-16 23:30:25 +01:00
Carlos Florêncio e4b39238fa docs: update spec-driven planning workflow (#1390) 2026-06-16 13:57:03 +01:00
Carlos Florêncio fd421848fb feat: add feature toggles settings (#1372) 2026-06-15 13:33:45 +01:00
Carlos Florêncio 3a3fca7f0e feat: add resource metrics topbar (#1373) 2026-06-14 22:33:34 +01:00
Carlos Florêncio d6cf4a1acc chore: add provider-agnostic bootstrap (#1377) 2026-06-14 22:05:49 +01:00
Carlos Florêncio 010948767a feat: add file-backed prompt attachments (#1367) 2026-06-14 21:40:02 +01:00
Carlos Florêncio cf3469b4d1 feat: allow read-only absolute file paths (#1371) 2026-06-14 19:32:36 +01:00
Carlos Florêncio 326297c3e7 fix(agent): avoid oversized env spawn failures (#1344) 2026-06-11 22:25:58 +01:00
Carlos Florêncio fc4bf8a40c feat: add checkout service make targets (#1311) 2026-06-08 19:30:21 +01:00
Carlos Florêncio 637123f84f feat: allow remote external mcp access (#1307) 2026-06-08 17:41:29 +01:00
Carlos Florêncio 1484ae7d28 fix: expose user agent bins to system service (#1292) 2026-06-07 21:13:28 +01:00
João Salavisa 97c1f689e4 feat(workflow): explicit step-completion signal for auto-advance (#1276)
* feat(workflow): explicit step-completion signal for auto-advance

Adds `step_complete_kandev` MCP tool + `WorkflowStep.auto_advance_requires_signal`
column so workflow steps can gate their `on_turn_complete` transitions on an
agent-emitted completion signal instead of inferring "done" from any turn-end.
See docs/decisions/0015-explicit-completion-signal-for-auto-advance.md for the
motivation, alternatives considered, and trade-offs.

* fix(workflow): address PR review feedback for explicit completion signal

- Dedup `LoadPendingStepSignal` into `internal/task/models` so the MCP
  handler (write site) and the orchestrator (read site) share one decoder.
- Gate the out-of-band subscriber on `WorkflowStep.AutoAdvanceRequiresSignal`
  so `step_complete_kandev` is not an unintended manual-advance path for
  signalless steps.
- Fail closed on step-load errors in `processOnTurnCompleteViaEngine`: a
  loader hiccup must block the transition rather than silently bypass the
  gate.
- Reject `step_complete_kandev` for terminal sessions
  (Completed / Failed / Cancelled) so the agent gets a clear error instead
  of `accepted: true` followed by a no-op.
- Surface bus-publish failures back to the agent instead of swallowing
  them — the idempotency guard makes the retry safe and prevents the
  session from getting stuck.
- New `TestOnStepCompletionSignaled` covers the subscriber paths
  (RUNNING / WAITING+match / stale step / not signal-gated).
- ADR doc fixes: payload field list now matches the wire shape, writer
  ownership is documented, the unsubstantiated 250ms-debounce claim is
  removed, and the late-signal re-close race is recorded as a deferred
  open question.
- Drop the new toggle's HelpTip in favour of an inline description — the
  shadcn tooltip portal was intercepting clicks on the agent-profile
  dropdown options in the workflow settings E2E.

* fix(workflow): round-2 review fixes for explicit completion signal

- Split `handleStepComplete` into `resolveStepCompleteTarget` +
  `publishStepCompletionEvent` helpers so the entrypoint clears funlen
  (88 → under 80 lines) and the two halves are independently testable.
- Classify session/task load errors instead of returning `NotFound` for
  every failure: use the exported `taskrepo.ErrTaskNotFound` sentinel for
  task lookups, substring-match for the session repo (no sentinel today),
  and surface anything else as `InternalError` with the raw error logged
  but not leaked to the agent — so a transient DB hiccup triggers a retry
  rather than session abandonment.
- Pin `step_complete_kandev` explicitly in the mode-specific tool-count
  tests: `Contains` in `ModeTask`, `NotContains` in `ModeConfig` and
  `ModeOffice`, so accidental dereg or cross-mode registration is caught
  by the diff instead of by a still-equal count.

* fix(workflow): round-3 review fixes + defer pipeline-editor toggle

- Defer the "Wait for agent completion signal" sub-toggle to a follow-up
  PR. Adding it to the step config card shifts the layout enough that the
  agent profile select's Radix popper opens into a sibling tooltip's hover
  path, breaking workflow-agent-profile.spec.ts on shard 7. The backend
  column ships in this PR — workflows can opt in via the YAML import or
  the MCP `update_workflow_step_kandev` tool — and the UI affordance gets
  its own iteration where the test interference can be investigated
  without blocking the rest of the change.
- Re-publish the bus event on the `already_signaled` short-circuit when
  the session is WAITING_FOR_INPUT. Without this, an agent's retry after
  the first call's publish failed would short-circuit on the persisted
  bag, never fire the subscriber, and leave the session stuck.
- handleStepComplete docstring: drop the non-existent feature-flag claim
  and the "audit entry" wording — gating is purely
  `WorkflowStep.AutoAdvanceRequiresSignal` and the bag is cleared on the
  next turn start with no separate audit trail.
- `step_complete_kandev` tool description: same fix — clarify that the
  call succeeds for non-gated steps but the signal is discarded on the
  next turn start (no audit history to query later).

* test(workflow): cover handleStepComplete + reword defer-comment

- Add `TestHandleStepComplete_*` (6 subtests, all passing) covering the
  uncovered handler paths flagged by Claude/cubic on round 3:
  missing-fields validation, session-does-not-belong-to-task ownership
  guard, terminal-session rejection (Completed/Failed/Cancelled),
  first-call happy path (bag persisted + bus payload shape pinned), dedup
  while RUNNING (no re-publish), and dedup while WAITING_FOR_INPUT (the
  retry-after-publish-failure path — must re-publish so the subscriber
  fires).
- Reword the deferred-toggle comment to drop the YAML-export claim:
  the workflow export model doesn't yet serialize
  `auto_advance_requires_signal`, so MCP `update_workflow_step_kandev`
  is the only configuration path that round-trips today. Note the
  follow-up needs to extend the export schema alongside the UI toggle.

* test(workflow): pin signaled_at + drop redundant GetTaskSession on bag-clear

- Assert `signaled_at` is present and parses as RFC3339Nano in
  `TestHandleStepComplete_FirstCallAccepted`. The field is part of the
  handler's documented response contract; pinning it catches accidental
  drop/rename regressions.
- Add `clearPendingStepSignalByID(ctx, sessionID)` as a thin DB-only
  variant of `clearPendingStepSignal` and use it from
  `executeStepTransition`, where the session struct isn't read after the
  clear. Avoids an extra `GetTaskSession` round-trip per transition.
  `clearPendingStepSignal(session)` still exists for the
  in-memory-mutation case (subscriber's stale-step path).

* fix(workflow): subscriber stale-clear guard + ADR/comment drift fixes

- onStepCompletionSignaled's stale-step path now reads the bag and only
  clears it when its current StepID matches the (stale) event's stepID.
  Previously the unconditional clear could destroy a valid signal that
  the new step's agent had just written when sessions are reused across
  steps without auto_start_agent. (Greptile P1.)
- Drop the "feature flag" phrase from WorkflowStep.AutoAdvanceRequiresSignal
  docstring — leftover from an earlier draft. The gating is purely the
  boolean field; the global flag was removed two rounds ago.
- Merge the two adjacent `if triggerOnEnter` blocks in
  executeStepTransition so the full triggerOnEnter=true path reads top-
  to-bottom in one place. (CodeRabbit + cubic.)
- ADR 0015 Mechanism section: re-label the SessionStepHistory.Metadata
  audit annotation, the `step_complete_signaled` system message, and the
  expvar telemetry counters as deferred. They're planned shapes, not
  current behaviour — calling them "Audit" / "Chat visibility" /
  "Telemetry" in present tense was misleading for future readers.

* fix(workflow): drop subscriber complexity + reload session on stale-clear

- Extract `parseStepCompletionEvent` and `stepIsSignalGated` helpers from
  `onStepCompletionSignaled`. Cyclomatic complexity goes 17 → under 15
  (cyclop on new code, CI lint regression after the round-6
  stale-clear guard).
- The stale-step branch now re-loads the session from the DB before
  deciding whether to clear the bag. The previous round-6 fix checked
  the local `session.Metadata` snapshot, which can be older than a
  concurrent write from the new step's agent — that check could see a
  stale signal that had since been overwritten with a valid one and
  erase the new bag entry. The narrower load-on-clear is cheap and
  closes the cubic P1 hole. (The broader race in
  `processOnTurnCompleteViaEngine` reading session.Metadata is the
  monotonic-marker open question in ADR 0015; out of scope here.)

* test(workflow): pin stale-event guard's preserve-current-bag side + dedup StringFromAny

- Add `TestOnStepCompletionSignaled` subtest "stale event → valid bag
  for CURRENT step is preserved" — fires a stale step-A event while
  the bag holds a valid step-B signal, asserts the bag still contains
  StepID=step_b after the subscriber runs. Pins the negative side of
  the round-6 `existing.StepID == stepID` guard, so a regression that
  drops or inverts the guard (and would silently leave signal-gated
  steps stuck) fails the test instead of slipping through.
- Promote `pendingSignalString` to exported `models.StringFromAny`
  and reuse it from the orchestrator subscriber's
  `parseStepCompletionEvent`. Eliminates the byte-for-byte duplicate
  helper across the two packages; the bag-shape decoder and the bus-
  event decoder now share one source of truth for "missing string".

---------

Co-authored-by: Kandev Agent <agent@kandev.dev>
2026-06-05 18:32:27 +01:00
Carlos Florêncio 7917c95496 feat(backend): inject MCP servers in CLI passthrough mode per agent (#1158) 2026-06-03 00:09:05 +01:00
João Salavisa fd79d6170f feat(tasks): multi-branch tasks — N (repo, branch) pairs per task (#1226)
* feat(tasks): multi-branch tasks — N (repo, branch) pairs per task

Extends multi-repo into multi-branch so a single task can hold multiple
worktrees on the same repo (one per branch). Sibling worktrees layout at
<task>/<repo>/ + <task>/<repo>-<slug>/, dedicated PRWatch per branch,
live agentctl tracker rescan + frontend store updates so the UI splits
PRs / files / commits per branch without a session restart. MCP
add_branch_to_task_kandev tool is shielded to the worktree executor.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(web): unify multi-branch repo label as <repo> · <branch> across panels

PR Changes and Commits panels rendered repo labels differently for multi-branch
tasks — Commits showed "kandev · feature/x" while PR Changes leaked the raw
"kandev-feature-x" agentctl tracker tag. Reformat tracker-tagged repo names via
formatRepoLabel using the longest known-repo prefix so kandev-cli-* doesn't
collapse to kandev · cli-*.

* fix(tasks): address multi-branch PR review — data races, slug collisions, MCP error codes

Backend
- agentctl process.Manager: add repoTrackersMu RWMutex guarding repoTrackers
  + workspaceTracker. Reads snapshot under RLock; RescanRepositories builds
  trackers first, takes Lock for swap/append. Validates newWorkDir via
  os.Stat before publishing cfg.WorkDir.
- worktree.Manager: reject invalid explicit BranchSlug up-front; cache key
  uses sanitized wt.BranchSlug so read/write paths are symmetric.
- worktree.store: narrow isDuplicateColumnError to "duplicate column name".
- task service AddBranchToTask: slug-collision guard rejects feat/a vs feat-a.
- orchestrator resolvePushRepo: two-pass exact-name match before subdir
  prefix fallback so "backend" doesn't swallow pushes for "backend-admin".
- executor buildRepoSpecs: duplicate repos always get a non-empty BranchSlug
  (falls back to branch-N when both branch fields sanitize to empty).
- MCP handler: classifyAddBranchError maps service errors to NOT_FOUND /
  CONFLICT / VALIDATION_ERROR; add ErrorCodeConflict constant.
- MCP server: extract registerAddBranchToTaskTool, register in task mode
  only (external mode contract: config tools + create_task_kandev).
- workspace_rescan handler: reject malformed JSON with 400 instead of
  silently rescanning the current root.
- branch_materializer: split MaterializeBranch into prepare + finalize
  helpers to satisfy the 80-line cap.

Frontend
- existingPrUrl returns undefined when a task has >1 PR so per-repo View PR
  buttons take over (no silent linking to a sibling).
- formatRepoLabel checks exact known-repo match before prefix splitting so
  "kandev-cli" isn't mislabeled as "kandev · cli".
- Repo chip key now includes base_branch so siblings differing only on
  base render as distinct chips.

Docs
- multi-branch spec uniqueness wording aligned with the canonical 4-column
  key (task_id, repository_id, base_branch, checkout_branch).
- worktree.CreateRequest.BranchSlug doc describes the sibling layout
  (<repo>-<slug>) instead of the obsolete nested form.

* fix(tasks): scope slug-collision check to repo only + use errors.Is for ErrTaskNotFound

- service_branches: drop base_branch from the slug-collision check. Worktree
  path is (repo, slug); two rows on the same repo cut from different bases
  still collide on disk.
- service_branches: prepareBranchAdd wraps taskrepo.ErrTaskNotFound via
  fmt.Errorf with %w so classifiers don't have to substring-match the
  formatted task UUID.
- mcp handlers: classifyAddBranchError uses errors.Is(err, ErrTaskNotFound).

* fix(agentctl): sanitize rescan work_dir before os.Stat to clear CodeQL path-injection

CodeQL flagged the rescan endpoint as a path-injection sink (the
HTTP-supplied work_dir flowed straight into os.Stat and downstream
scanRepositorySubdirs). Add validateRescanPath which:
- requires the input to be a clean absolute path with no ".." segments
- rejects anything that isn't equal to or an ancestor of the current
  cfg.WorkDir — the only legitimate use case is the branch materializer
  promoting <task>/<repo>/ to <task>/

Defense in depth: agentctl binds to localhost, but any colocated process
could otherwise direct it at /etc or the user's home by POSTing
/api/v1/workspace/rescan.

* fix(agentctl): tighten validateRescanPath, close TOCTOU on existingTrackers, add tests

- Drop the strings.Contains(clean, "..") guard. filepath.Clean already
  resolves traversal; the substring check rejects legitimate names like
  /home/u/..hidden without adding defense (the ancestor check via
  filepath.Rel is the real boundary).
- Drop the rel == "." branch in the ancestor check — early return for
  clean == currentClean already covers identity.
- Read existingTrackers inside the write-lock section (not under RLock
  then re-Lock) so two concurrent rescans can't both see 0 trackers and
  double-bootstrap the multi-repo set.
- Add table-driven TestValidateRescanPath covering rejection paths
  (relative, descendant, sibling, traversal-cleaned, empty input),
  legitimate ancestor promotion, exact match, no-anchor first-launch,
  and a /home/u/..hidden dotted-segment case.

* fix(agentctl): break taint flow into os.Stat — derive rescan path from cfg, not HTTP body

CodeQL's go/path-injection trace still flagged manager_rescan.go after the
prior sanitizer because the user-supplied newWorkDir flowed (after
validation) into os.Stat and then into cfg.WorkDir → tracker paths →
workspace_monitor os.Stat sinks.

Replace validateRescanPath with resolveRescanPath: it returns a path
DERIVED from currentWorkDir (no-op = currentClean, promotion =
filepath.Dir(currentClean)) and uses newPath only for comparison, never
as a source for the returned string. os.Stat now receives a path whose
provenance is trusted manager config.

Functionally the legitimate caller (branch materializer promoting
<task>/<repo>/ to <task>/) is unchanged.

* test(agentctl): make TestResolveRescanPath windows-portable

The Linux Backend Tests job passed but the Backend (windows) job rejected
every "absolute" case because filepath.IsAbs("/task/repo") is false on
Windows (no volume letter).

Build inputs via filepath.Join against absRoot() (filepath.Abs of "/" /
"\\") so the same table covers POSIX (`/...`) and Windows (`C:\...`)
without per-OS branches. Keep the traversal-after-Clean case POSIX-only
since filepath.Clean is the shared primitive and that input form needs a
volume to be considered absolute on Windows anyway.

* fix(agentctl): serialize RescanRepositories + re-check trackers under write lock

Two concurrent RescanRepositories calls could both observe an empty
tracker set (between the snapshot read and the bootstrap branch) and both
enter transitionToMultiRepoMode, leaking a duplicate bare-root tracker
and duplicate per-repo trackers. Same race in appendNewRepoTrackers would
double-append the same new child across both callers.

Fix:
- Add rescanMu sync.Mutex on Manager. Acquired for the full body of
  RescanRepositories so the snapshot → branch → mutate sequence is
  serialized. repoTrackersMu still guards individual field reads from
  unrelated goroutines (subscribe/unsubscribe/poll-mode).
- appendNewRepoTrackers re-checks membership inside the write-lock
  before appending and drops already-present trackers (Stop + detach
  outside the lock). Defense in depth.
- Test: add `dotted segment is legal as promotion` case so the
  ..hidden-segment promotion path stays exercised.

---------

Co-authored-by: Kandev Agent <agent@kandev.dev>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-06-01 19:36:20 +01:00
José Almeida 041a19f060 feat: service-managed UI self-update (#1210)
* feat: add service-managed self-update

* chore: add temporary self-update test scripts

* chore: simplify temporary script markdown fences

* chore: run frontend in temporary self-update scripts

* fix: show self-update job progress after apply

* chore: add real npm self-update test script

* fix: isolate npm self-update prefix

* fix: detect npm service installs from bin shim

* chore: reset service before real npm update test

* chore: expand real npm status diagnostics

* fix: preserve service home during self-update

* fix(cli): tee self-update helper output to a log file

* fix(cli): avoid launchd bootstrap race when reloading the macOS service

* fix(backend): run macOS self-update helper once via transient launchd plist

* fix(web): show self-update progress and lock the apply button until the update lands

* fix(cli): reinstall via the kandev wrapper on Homebrew self-update

* chore: remove temp self-update test scripts

* fix(web): drop unused apply path from useUpdates hook

* fix(backend): snapshot install state once in apply preflight

* docs: align self-update docs with transient LaunchAgent flow

* chore(release): run cli bundle from apps workspace root

* fix(backend): guard against concurrent self-update applies

* fix(backend): check scheme and helper paths in self-update apply

* fix(backend): drop duplicate binary name from npx manual command

* fix(cli): allow --help for service self-update without --intent

* fix(cli): harden self-update dir perms and darwin uid resolution

* fix(web): set required POST fields last in applyUpdate

* docs: use JSON body notation for the apply endpoint

* fix(backend): expire self-update guard so a stuck helper cannot wedge apply

* refactor(cli): collapse redundant writeSync branch in self-update log
2026-06-01 17:49:15 +01:00
Carlos Florêncio 86f756e280 feat(workflow): add set_session_mode action and preserve mode across reset (#1188) 2026-05-31 14:36:12 +01:00
Carlos Florêncio dcde3da74c feat: surface an inline notice when an agent turn produces no output (#1179) 2026-05-31 11:14:23 +01:00
Carlos Florêncio e708a76701 docs: document portable workflow import/export YAML format (#1176) 2026-05-30 22:53:57 +01:00
Carlos Florêncio ec289c799b feat: retry transient provider 529 errors with visible backoff (#1173) 2026-05-30 19:16:49 +01:00
João Salavisa 2cb3f4a384 chore: remove dead non-ACP provider client packages (#1083)
* chore: remove dead non-ACP provider client packages

Delete five Go packages under apps/backend/pkg/ that were unreachable
from any binary: amp, codex, claudecode, copilot, opencode. These were
the client libraries for legacy non-ACP agent implementations removed in
a5b54b53 — that commit deleted the callers but missed the client libraries.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* chore: drop orphaned copilot-sdk dep and stale architecture doc

go mod tidy removes github.com/github/copilot-sdk/go v0.1.18 and its
transitive dep github.com/google/jsonschema-go v0.4.2; both were only
imported by the deleted pkg/copilot/client.go.

Delete docs/agents/claude_code.md: it describes the pre-ACP streamjson
transport and pkg/claudecode/ package. Every source file it references
has been removed (pkg/claudecode/ in this PR; streamjson/ and
agents/claude_code.go in a5b54b53).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Kandev Agent <agent@kandev.dev>
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-05-26 15:31:14 +01:00
José Almeida 823117ba48 fix: wire MCP config into CLI passthrough (#1078)
* fix: wire MCP config into CLI passthrough

* fix: address passthrough MCP review feedback

* fix: fail fast when passthrough MCP port is missing

* fix: track passthrough MCP config with nil metadata
2026-05-26 11:38:30 +01:00
Carlos Florêncio f1dbad1dbd feat(cli-mode): auto-inject task prompt + dynamic submit sequence + passthrough UX fixes (#923) 2026-05-25 19:14:36 +01:00
Carlos Florêncio 8a7b7a0b60 feat(agentctl): azure Repos PR follow-ups after #1066 (#1071) 2026-05-25 18:15:52 +01:00
José Almeida 777dfdb15b feat(ssh): add SSH executor (#927)
* feat(backend): add SSH executor runtime

Run agents on any Linux box reachable over SSH: own VPS, homelab, EC2,
shared dev box. One SSH connection per (host, user, identity) shared
across all sessions on that host; each session gets its own remote
agentctl process, remote port, and SSH-tunneled local port. Mirrors the
local ~/.kandev/tasks/<task-dir>/<repo>/ layout on the remote so
multi-session tasks share a worktree and per-session runtime state lives
under the task dir.

Implements ExecutorBackend + RemoteSessionResumer + RemoteStatusProvider
+ Closeable. Host-key trust is explicit: the test endpoint observes a
fingerprint without pinning; the user trusts it in settings; subsequent
connects reject any mismatch. Auth via ssh-agent or IdentityFile only
(passphrase-protected keys must be loaded into ssh-agent). Parses
~/.ssh/config for HostName/Port/User/IdentityFile/ProxyJump inheritance.
agentctl is content-hash-cached on the remote (~/.kandev/bin/agentctl
plus a .sha256 sidecar) and uploaded only when local and remote differ.
Linux/amd64 only in v1, matching Docker's current state; arm64 is
called out as a cross-cutting follow-up.

See docs/specs/ssh-executor/spec.md.

* feat(backend): add SSH test + sessions HTTP/WS endpoints

POST /api/v1/ssh/test runs the connection probe used by the settings UI:
dials the host with a permissive host-key callback that records (but
does not pin) the fingerprint, probes uname/arch/git, and reports
whether agentctl is already cached on the remote. The UI gates the
"Trust this host" checkbox on success + fingerprint, and Save persists
the trusted fingerprint into the executor config.

GET /api/v1/ssh/executors/:id/sessions returns the active SSH-runtime
sessions backing the "Active sessions" card on the executor settings
page, mirroring the SpritesInstancesCard / DockerContainersCard shape
(task, session, user@host, remote port, local forward port, uptime).

Both routes also exposed over WS via ssh.test / ssh.sessions.list.

* feat(web): add SSH executor settings UI

SSHConnectionCard: connection form (name, host_alias / host / port /
user, identity source = ssh-agent | file with optional file path,
optional ProxyJump) with a Test Connection button that runs the backend
probe, surfaces the observed host fingerprint, and only enables Save
when the user explicitly ticks "Trust this host". Editing the host /
port / user / identity fields resets both the test result and the trust
checkbox. On save, if the executor already has running sessions, a
confirm modal warns that those keep going on the old host and only new
sessions will use the new config.

SSHSessionsCard: 90s-polled table of active sessions for the executor,
mirroring SpritesInstancesCard / DockerContainersCard. Columns: task,
session, user@host, remote agentctl port, local forward port, uptime,
status badge. Backed by GET /api/v1/ssh/executors/:id/sessions.

Also registers the ssh entry in executor-icons.ts (label "SSH",
IconTerminal2) so it surfaces consistently in the rest of the settings
chrome.

* docs: add SSH executor v1 spec

Captures the design behind the new SSH executor: why ("run on a Linux
box I already own" between local and Sprites), the remote layout that
mirrors local ~/.kandev/tasks/, per-session agentctl + forward over a
shared per-host SSH connection, explicit-trust host-key flow, ~/.ssh/config
inheritance, amd64 + agentctl content-hash cache, recovery via persisted
ExecutorRunning metadata, settings UI (Connection + Sessions cards), and
the edit-with-live-sessions warning UX. Out-of-scope items (arm64,
macOS, password auth, chained ProxyJump, working-tree push, etc.) are
called out explicitly with the follow-ups they unblock.

* chore(e2e): rename docker project to containers + add e2e README

The Docker e2e Playwright project was the natural home for any test
that needs a real Docker daemon on the host — but its name implied it
was only about the Docker executor. SSH e2e tests (incoming in
follow-up commits) belong here too, since they use a Dockerised sshd
container as the SSH executor's remote target.

- Rename project: docker -> containers, widen testMatch to also include
  tests/ssh/*.spec.ts.
- Rename env flag: KANDEV_E2E_DOCKER -> KANDEV_E2E_CONTAINERS, with the
  old name kept as a deprecated alias for one release so local scripts
  and CI configs don't break overnight.
- Rename CI job: e2e-docker -> e2e-containers, switch its blob report
  name and the merge-job dependency.
- Add apps/web/e2e/README.md explaining the project layout, what the
  containers project covers (Docker executor + SSH executor), why it
  was renamed, and how to run it locally.
- Add docs/specs/ssh-executor/e2e-plan.md tracking the SSH e2e
  coverage we'll implement on top of this rename (real sshd container,
  no mocks, 17 spec files covering ~75 cases). Includes a "Deferred"
  section that flags arm64 as something to revisit when
  agentctl-linux-arm64 lands in the build pipeline.

* feat(web): add data-testid attributes to SSH settings UI

Sweep stable test ids across the SSH connection and sessions cards so
the incoming Playwright suite can hold steady against refactors. Splits
the formerly monolithic ssh-settings.tsx into three files to stay
within the per-file/per-function size limits:

- ssh-connection-card.tsx (form + test-then-trust flow)
- ssh-sessions-card.tsx (active-sessions table)
- ssh-settings.tsx (barrel re-export so existing imports keep working)

Test ids cover: card roots, every input, identity-source select +
options, test/save buttons, connection badge (with data-status), error
text, test-result panel (with data-success), per-step rows (with
data-success), observed/pinned fingerprint, fingerprint-change
warning, trust checkbox, sessions table + per-row cells, empty state,
refresh button, session status badge.

* feat(e2e): scaffold the SSH executor test harness

Lands the building blocks the SSH specs will compose on top of. Every
piece talks to a real sshd container — no mocks at any layer.

- fixtures/ssh-image.ts: builds kandev-sshd:e2e once per machine (Alpine
  + openssh-server + openssh-sftp-server + git + bash + sudo +
  iproute2 + iptables, pre-bakes mock-agent at /usr/local/bin/mock-agent,
  generates a fresh host key on entrypoint, reads the worker public key
  out of a bind-mounted /authorized_keys). The agentctl binary is
  deliberately NOT pre-baked so tests exercise the SFTP upload + sha256
  cache path the production code uses.
- helpers/ssh.ts: per-worker sshd lifecycle (startSSHServer /
  stopSSHServer), keypair generation, host-key fingerprint scanning,
  fault injection (regenerateHostKey for host-key-rotation specs,
  dropTrafficToPort22 / restoreTraffic for connection-drop tests,
  killRemotePid for "agentctl died" recovery), and remote inspection
  helpers (readRemoteFile / remotePathExists / listRemoteDir /
  countSshdConnections).
- helpers/ssh-bastion.ts: two-container ProxyJump setup. Bastion is on
  a private Docker network and has a published port; target is on the
  same network with NO host port — any successful connection MUST have
  traversed the bastion, which makes the proxy-jump assertion honest.
- fixtures/ssh-test-base.ts: worker-scoped fixture mirroring
  docker-test-base. Skips when Docker isn't reachable. Spins up the
  sshd container, generates keys, scans the fingerprint, then seeds a
  workspace + workflow + bare repo + mock-agent profile + an SSH
  executor with the fingerprint already trusted. Specs that need to
  exercise the test-then-trust UI gate create their own executor on
  top of the same target.
- pages/SSHSettingsPage.ts: Page Object covering the connection form,
  test/save buttons, trust checkbox, observed/pinned fingerprint, per
  step badges, and the sessions table.
- helpers/api-client.ts: new createSSHExecutor / updateExecutor /
  getExecutor / testSSHConnection / listSSHSessions methods plus
  matching DTO types.

* test(e2e): add SSH executor Playwright suite (17 specs, ~75 cases)

Every spec drives the real sshd container set up by the ssh-test-base
fixture; no mocks. Specs are grouped by concern (file per group),
mirroring the docker/ directory style. Each one maps 1:1 to a row in
docs/specs/ssh-executor/e2e-plan.md.

UI surface:
- connection-form.spec.ts — field rendering, save/test gating,
  identity-source toggle, default port.
- test-result.spec.ts — successful + failed Test Connection paths,
  per-step badges, fingerprint surfacing, cached/will-upload copy.
- trust-gate.spec.ts — save disabled until trust ticked, edits reset
  result + trust, fingerprint-change warning when pinned != observed.
- sessions-card.spec.ts — empty state, row rendering, manual refresh,
  status badges, truncation, polling pickup.
- persistence.spec.ts — fingerprint persists across reload, new form
  starts blank, executor list label, partial state doesn't leak.

API contract:
- test-endpoint.spec.ts — POST /api/v1/ssh/test step ordering, invalid
  body, host-required, handshake short-circuit, cached/uploaded states.
- sessions-endpoint.spec.ts — GET /api/v1/ssh/executors/:id/sessions
  filters to ssh-runtime rows, populates metadata, monotonic uptime.
- executor-crud.spec.ts — type=ssh persists fingerprint, profile
  workdir round-trip, edit-with-running-sessions keeps snapshots.

Real-SSH integration:
- launch-task.spec.ts — full smoke: agentctl upload + sha256 cache hit
  on second launch, task/session dir layout, stop cleans session dir.
- recovery.spec.ts — backend restart reconnects, dead pid surfaces
  failure, persisted metadata keys present.
- auth-methods.spec.ts — key + valid, missing key, passphrase-protected
  rejection, agent without SSH_AUTH_SOCK, wrong-key auth failure.
- concurrency.spec.ts — two sessions share task dir distinct ports, two
  tasks distinct dirs, traffic drop + restore exercises eviction +
  reconnect.
- hostkey-rotation.spec.ts — regenerate host key surfaces new
  fingerprint, stale pinned fingerprint blocks launch verbatim, re-trust
  restores function.
- config-inheritance.spec.ts — ~/.ssh/config HostName / Port /
  IdentityFile / ProxyJump inheritance with form-overrides-config rules.
- workdir-per-profile.spec.ts — per-profile ssh_workdir_root routes to
  separate remote workdir trees; default falls back to ~/.kandev.
- proxy-jump.spec.ts — 2-container bastion topology asserts target is
  unreachable directly, reachable via ProxyJump, chained ProxyJump fails.
- error-surfacing.spec.ts — TCP refused, auth failed, bastion unreachable
  surface verbatim; backend 400 stays a 400 not a synthesised failure.

Also adds an AGENTS.md (CLAUDE.md symlink) line pointing at the
e2e/README.md so future agents discover the containers project +
KANDEV_E2E_CONTAINERS env var without grepping playwright.config.ts.

* fix(e2e): unlock sshd account, derive fingerprint from kandev probe

Three bugs surfaced by actually running the SSH e2e suite
(KANDEV_E2E_CONTAINERS=1 against the containers project):

1. Alpine's `adduser -D kandev` leaves the account password-locked
   (`!` in /etc/shadow). sshd then refuses every auth method for that
   user — including pubkey — with "User kandev not allowed because
   account is locked". Fix: `usermod -p '*' kandev` in the Dockerfile
   so the account is open for key-based login but still has no valid
   password. Also adds the `shadow` apk package for `usermod`.

2. ssh-keyscan reports the ed25519 host fingerprint, but Go's ssh
   client may negotiate a different host key type when sshd offers
   multiple — meaning the fingerprint the fixture pre-scanned didn't
   match the one kandev observed at handshake time. Fix: the fixture
   now hits /api/v1/ssh/test with a permissive callback right after
   the container is up and uses that fingerprint as the pinned value.
   Same code path real users hit; eliminates the negotiation skew by
   construction.

3. ssh.ts had a CPU-spin sleep helper and an nc-dependent TCP probe,
   both fragile. Replaced with a proper sleep subprocess and a bash
   /dev/tcp probe, plus retry-with-stderr on the fingerprint scan so
   failures are diagnosable.

Also tightens test-endpoint.spec.ts F4: the test was using
identity_source=agent to "fail fast", but that fails inside
buildAuthMethods before the handshake step ever runs. Switched to
identity_source=file against a refused port so the test exercises
the actual TCP+handshake failure path.

After these fixes 4/6 test-endpoint cases pass against a real sshd.

* fix(ssh): make the end-to-end launch path actually work

A pass of issues uncovered by running the SSH e2e suite locally
(KANDEV_E2E_CONTAINERS=1 against the real sshd container). After this
commit all 15 non-launch SSH e2e tests pass (UI form validation,
test-connection contract, auth-methods, error-surfacing, sessions-card
empty state) and the launch path runs through prepare -> upload ->
agentctl -> instance -> forward, with WebSocket streams sometimes
disconnecting partway through (tracked below for follow-up).

Image changes (apps/web/e2e/fixtures/ssh-image.ts):
- Install curl so the SSH executor can POST to the in-container
  agentctl control server for instance creation.
- Install gcompat + libstdc++ so the dynamically-linked glibc
  agentctl binary can exec on musl-libc Alpine. Without it the
  kernel returns ENOENT for /lib64/ld-linux-x86-64.so.2.
- Install shadow + 'usermod -p *' kandev so sshd doesn't refuse
  pubkey auth for the otherwise-locked user.
- Drop in 'AllowTcpForwarding yes' and 'MaxSessions 100' via
  /etc/ssh/sshd_config.d/. Alpine's defaults are 'no' and 10, both
  of which crater the SSH executor's port-forward path.
- chown /home/kandev/.kandev to kandev on entrypoint so a host
  bind-mount of that path (used in this commit for log persistence)
  doesn't make agentctl unable to write its log file.

Image helper (apps/web/e2e/helpers/ssh.ts):
- Bind-mount the host mock-agent-linux-amd64 into the container at
  the same absolute path. kandev's orchestrator builds the agent
  command from KANDEV_MOCK_AGENT_LINUX_BINARY (a host path), so the
  remote needs the binary at that exact path; bake-into-image isn't
  enough because the absolute host path is what kandev sends.
- Bind-mount /home/kandev/.kandev so per-session agentctl logs
  survive --rm teardown and the test runner can inspect them on
  failure.
- Replace the broken CPU-spin sleep helper with a real sleep
  subprocess and a /dev/tcp TCP-open probe so timing-dependent
  helpers stop racing the container start.
- Retry the host fingerprint scan with stderr capture; the first
  scan can race the sshd accept loop on Alpine.

Backend SSH executor (apps/backend/internal/agent/lifecycle):
- executor_ssh_operations.go startRemoteAgentctl: agentctl does not
  accept --port-file or --pid-file flags (it reads AGENTCTL_PORT
  and writes its own pid). Rewrite the launch wrapper to inject
  AGENTCTL_PORT via env, capture $! as the pid, and tail the
  on-remote agentctl.log for 'HTTP server bound successfully'
  instead of waiting on imaginary side-files.
- executor_ssh_operations.go createRemoteAgentInstance: new helper
  that POSTs /api/v1/instances on the in-container control server
  via SSH-exec'd curl, returning the per-instance port the executor
  should forward to. Mirrors what executor_sprites_operations.go
  does inside its sprite. Without this step the agent stream
  returns 'configure request failed with status 404' because the
  SSH executor was talking to the control server, not the
  per-session sub-server.
- executor_ssh.go startAndForwardAgentctl: chains the new
  create-instance step in between agentctl launch and port-forward,
  and forwards the *instance* port (not the control port).
- executor_ssh.go: drop the per-host SSH connection pool (it was
  introducing a subtle aliasing issue between
  CreateInstance/StopInstance/GetRemoteStatus that made the SSH
  client unreliable across same-host sessions). Each session now
  holds its own ssh.Client directly on sshSessionState and
  ResumeRemoteInstance dials a fresh client too.
- executor_ssh_operations.go SSHPortForwarder: serialize the
  client.Dial calls with a per-forwarder mutex. golang.org/x/crypto/
  ssh.Client.Dial is documented as concurrency-safe but in practice
  parallel opens from the kandev stream-manager occasionally
  produce io.EOF as if the channel-open response was never
  received.

Test fix (apps/web/e2e/tests/ssh/error-surfacing.spec.ts):
- Q1 ('TCP refused') was using identity_source='agent' with no
  SSH_AUTH_SOCK in the backend env, so it failed at
  buildAuthMethods before reaching the TCP-refused path. Switch to
  identity_source='file' with the seed key so the test exercises
  the failure it claims to.

Known remaining issue (to investigate next): the launch path now
reaches 'agent process started' + 'ACP initialize response
received' when run in isolation, but the WebSocket updates stream
sometimes disconnects with 1006 abnormal closure shortly after. A
standalone Go reproduction of concurrent direct-tcpip channels
against the same image works without issue, so the trigger is
something specific to the kandev backend's stream-manager + my
forwarder interaction. Tracked for the next iteration.

* fix(ssh): half-close forwarded SSH channels to avoid premature WS abnormal-close

The SSH executor's port-forwarder previously called the full Close() as soon
as either direction of the bidirectional copy finished. Under HTTP-Upgrade
WebSocket traffic this meant: when the WS server flushed its final frame and
shut down the write side, our local->remote io.Copy returned EOF, we closed
the entire SSH channel, the remote->local copy aborted mid-frame, and the
backend's WS reader observed close 1006 (unexpected EOF) instead of a clean
close frame.

Switch to a half-close pattern: each direction CloseWrite()s its destination
when its source EOFs, letting the other half drain the remaining frames. The
final Close happens after both copies return.

The "ssh forwarder dial remote failed: EOF" warning in e2e logs was a
follow-on symptom — the SSH client was being torn down by the abnormal close,
so any later channel-open returned EOF immediately.

* fix(ssh): resolve session executor_id via TaskSession join

GET /api/v1/ssh/executors/:id/sessions was filtering ExecutorRunning rows by
their ExecutorID column, but the lifecycle manager's buildRunningFromExecution
only sets that column from a prior row — for fresh sessions it's left empty.
The endpoint therefore returned [] for every just-launched SSH session.

Look up the TaskSession by session_id and compare its ExecutorID instead.
Keep the row's own ExecutorID as a fast-path for resume/recovery flows
where it's already populated.

* feat(web): register ssh entry in the new-executor type map

Without this entry, /settings/executors/new/ssh fell back to the
"unknown executor type" placeholder. Extracts the type map into its
own module so the page file stays under the 600-line lint cap.

The SSH-specific form is still TODO and will replace the standard
profile-create form for this type in a follow-up.

* test(e2e): poll listSSHSessions for SSH session row in group G

The simple-message scenario completes inside a couple hundred
milliseconds, so the previous "wait for executor_type=ssh, then
query once" pattern raced the row's removal during teardown. Poll
listSSHSessions directly with a 60s window so the row is observed
while the executor is up.

Adds dumpRemoteLogs helper for copying per-session agentctl.log
files out of the sshd container on assertion failure, easing
debugging when the row never appears.

* test(e2e): align H5 assertion with actual on-disk session-dir layout

The wrapper writes agentctl.pid and agentctl.log to <sessionDir>; the
remote agentctl port travels via AGENTCTL_PORT env + ExecutorRunning
metadata, not a separate .port file. Assert the files that actually
exist and the metadata field that carries the port.

* feat(web): mount SSH connection + sessions cards on dedicated routes

Wires the existing SSHConnectionCard and SSHSessionsCard into the
settings UI so the SSH executor flow has a home:

- /settings/executors/new/ssh renders SSHCreatePage (just the connection
  card; Save POSTs a new executor and routes to the edit page).
- /settings/executors/ssh/[executorId] loads the executor and renders
  the connection card pre-filled + the sessions card.
- Adds the SSH entry to the executors landing-page tile grid.
- Adds createExecutor / fetchExecutor / updateExecutor helpers to
  settings-api so the new pages can talk to /api/v1/executors directly.

Profile management for SSH executors still flows through the existing
profile pages; this commit only adds the executor-level chrome the
SSHSettingsPage e2e tests expect.

* fix(web): keep SSH trust checkbox visible after editing a connection field

Previously, editing any form field nulled out `result` so the entire
TestResultDisplay (including the trust checkbox) unmounted. The trust-gate
e2e specs assert that after editing host/port/user/identity_source, the
trust checkbox is still present but unchecked — which matches the
intended UX: the user can re-test against the new target and re-tick
trust without losing the prior result for reference.

Now an edit only clears `trust` when the field could route to a
different machine (host_alias, host, port, user, identity_source,
identity_file, proxy_jump); the result panel stays mounted. Editing the
display-only `name` leaves trust alone.

* test(e2e): point SSHSettingsPage at the new SSH executor routes

Updates the page object to navigate to the SSH-specific routes that now
host the connection + sessions cards:

- gotoNew(): /settings/executors/new?type=ssh → /settings/executors/new/ssh
- gotoExisting(): /settings/executors/[executorId] → /settings/executors/ssh/[executorId]

The old URLs collided with the standard profile-create / profile-edit
flow and were never going to render the SSH cards. The new paths give
the SSH UI its own surface, leaving the generic profile pages untouched.

* feat(api): add top-level DELETE /api/v1/executor-profiles/:profileId

Profile IDs are globally unique, so callers that only have the
profile id (e2e api client, CLI tooling) shouldn't have to plumb
the executor id through. Aliases the existing nested handler.

* test(e2e): probe SSH fingerprint via kandev, not ssh-keyscan, in K specs

regenerateHostKey was returning the ssh-keyscan fingerprint, but
ssh-keyscan and the Go ssh client can negotiate different host-key
types — meaning the fingerprint kandev observes during a real probe
does not always match what keyscan saw. The keyscan output was used
verbatim as the expected value, which K1 / K3 then asserted against
kandev's pinned-fingerprint result, so the specs flapped depending
on which algorithm sshd advertised.

Drop the return value from regenerateHostKey and have callers hit
/api/v1/ssh/test to learn the canonical fingerprint, matching what
the SSH fixture already does at seeding time.

K2 was polling env.error_message which doesn't exist — the launch
fails at SSH dial time before the executor is recorded on the task
environment. Point the polling at the task-session error_message
instead, where updateTaskSessionState actually persists the dial
failure.

* test(e2e): wipe agentctl before F5 to assert from a fresh-install state

F5 asserts that the agentctl_action probe reports "uploaded" before
the first launch and "cached" after. Tests share a worker-scoped
sshd container, so an earlier test in the same worker may have
already primed the cache, making the "before" assertion flap.

Wipe ~/.kandev/bin/agentctl + .sha256 from the container at the top
of F5 so the assertion sees the documented fresh-install path.
Export execInContainer so the spec can reach into the container
without copying the docker-exec boilerplate.

Add error_message to the listTaskSessions return type so the
hostkey-rotation spec can read the field (which the backend already
returns).

* fix(ssh): re-read ~/.ssh/config on every resolve, no process-wide cache

kevinburke/ssh_config's package-level Get/GetStrict use a sync.Once
to load $HOME/.ssh/config once per process and cache the result. That
breaks two things:
  * users who edit their config mid-session don't see updates until
    kandev restarts;
  * e2e tests that write a fresh ~/.ssh/config per test all see the
    state captured by whichever test triggered the first lookup.

Open and Decode $HOME/.ssh/config on demand from a local
inheritFromSSHConfig helper. The library still parses the file the
same way — we're just dropping the global cache.

Unblocks the four ssh/config-inheritance.spec.ts cases that wrote a
per-test ~/.ssh/config.

* feat(ssh): parse literal user@host:port ProxyJump bastion strings

dialViaJump fed target.ProxyJump straight into ResolveSSHTarget as a
host alias. That works for `Host prod-jump` entries in ~/.ssh/config
but turns the literal `user@host:port` form into a single hostname
that the kernel resolver chokes on (`lookup kandev@127.0.0.1:23000: no
such host`).

Detect the literal shape inline (`[user@]host[:port]`) and build the
bastion SSHTarget from its parts. Falls back to the alias path when
no @ / : separators are present.

Fixes the proxy-jump.spec.ts bastion flow. While here:
  * scanFingerprintInsideNetwork: alpine package is `openssh-client`,
    not the (nonexistent) `openssh-keyscan`. Surface install errors
    so future failures aren't silent.
  * scanFingerprintViaHost: retry on empty output — sshd accepts TCP
    before host-key negotiation completes on a cold container.
  * startBastionAndTarget: share one keypair across bastion + target
    so a single -i auths both hops (matches how OpenSSH ProxyJump
    handles per-host identities outside ~/.ssh/config).
  * proxy-jump N1: assert any SHA256 fingerprint came back, since the
    test no longer pre-discovers a value to compare against.

* test(e2e): time-bound the drop-traffic SSH probe with an AbortController race

iptables -A INPUT -p tcp --dport 22 -j DROP silently discards SYN
packets — Go's net.Dialer sits in the connect syscall through the
kernel's TCP_SYN_RETRIES (default 6 ~ 127s) before the syscall is
abandoned, even though the dialer's logical Timeout is 30s. The
spec polled the testSSHConnection API for the failure path; the
request blocked long enough that Node's keep-alive evicted the
socket and the test failed with "other side closed" instead of
seeing kandev's success=false response.

Race the probe against a 5s timeout. If the request errored or
timed out the test passes (both are valid evidence that the drop
hit the dial path); if it came back with a response, assert
success=false the same way the original spec did. The restore-probe
poll still gates on a real success after restoreTraffic.

* test(e2e): rerun ssh.test in hostkey-rotation afterEach to repin

Hostkey-rotation specs mutate the worker-scoped sshd container and
the seeded SSH executor's pinned fingerprint. Without a cleanup hook,
the next spec in the same worker that resolves seedData.sshTarget.
hostFingerprint observes a stale value and the UI's trusted-badge
check (persistence R1) flaps.

Add an afterEach that re-probes the live container via kandev, syncs
the fingerprint into both seedData and the seeded executor's pinned
config. The cleanup is a no-op when the probe fails (e.g. K2 left an
intentionally bad fingerprint that no longer matches anything — the
next test will re-establish state via its own setup).

* test(e2e): restore the seeded executor's pinned fingerprint after R5

The fingerprint-change-warning spec pinned a deliberately bogus
fingerprint on the worker's seeded SSH executor to exercise the
mismatch UI, then exited without resetting it. Later specs in the
same worker that launched real tasks against the same executor
(workdir-per-profile R1/R2 in alphabetical order) failed at SSH dial
time with host-key-changed, since the executor was still pinned to
the bad value.

Wrap the assertion in a try/finally that restores the original
fingerprint from seedData when the test ends, so the worker leaves
the executor in the same state it inherited.

* fix(ssh): quote every remote path + clean identity file path

CodeQL flagged two paths from HTTP-supplied SSH-config fields into
shell + filesystem operations:

  * runSSHCommand built "cat $remoteShaFile" / "test -x $remoteBin"
    / "mkdir -p $(dirname $remoteBin)" by direct concatenation; the
    arguments come from $HOME on the remote (not the kandev user)
    but the analyzer can't see that, and a remote $HOME containing
    shell metacharacters would still misparse. Route them through
    shellQuote for parity with every other call site in the file.

  * dialAuth opened target.IdentityFile straight from the configured
    string. Run it through filepath.Clean so any `..` segments slipped
    in by string substitution are normalised before os.ReadFile, which
    is the canonical mitigation CodeQL recognises here. Behaviour is
    unchanged for normal paths.

* refactor(ssh): drop the unused conn pool + remote curl dependency

CodeRabbit and Greptile both flagged the SSHConnPool: the executor never
took the pool path (CreateInstance always dialDirect'd a fresh client and
parked it on sshSessionState), so the pool's keepalive goroutines and
refcount logic were dead code. Get() also overwrote map entries on every
call, which would have leaked keepalive goroutines if the pool *had* been
used. Delete the entire SSHConnPool + sshConnKey + pooledConn + keepalive
plumbing. Export DialSSH so the SSH test endpoint can dial directly and
close the client when its single-shot probe is done.

While here:
  * pickRemoteAgentctlPort: switch from time.Now().UnixNano()%20000 to
    math/rand/v2.IntN. Two concurrent CreateInstance calls on a fast
    machine were getting the same port (UnixNano cycles in ~20µs through
    the 20k range); randomized picks avoid the collision.
  * createRemoteAgentInstance: POST to the remote control port over a
    direct-tcpip dial via net/http instead of shelling out to `curl`. The
    sshd container no longer needs curl, the kandev test endpoint no
    longer needs to probe for it, and the call inherits Go's standard
    timeout + error handling. Drop `curl` from the e2e Alpine image.
  * maybeUploadCredentials: was probing `printf %s "$HOME"` and
    discarding the output, then allocating an unused sshFileUploader.
    SSH v1 doesn't ship credential upload — just log a warning when a
    user sets remote_credentials so they know it won't take effect, and
    delete the dead uploader file.

* fix(ssh): verify bastion host key + tighten the trust-gate UX

Bastion host-key verification (security)
  resolveBastion built the bastion's ClientConfig with an empty
  PinnedFingerprint, which buildClientConfig translated into a
  callback that accepts any key. An attacker on the path to the
  bastion (DNS poisoning, route hijack) could pivot through it
  before the final-target check ever ran. Greptile flagged it as P1.

  Swap in a callback that consults ~/.ssh/known_hosts via
  knownhosts.New: matched key → accept; mismatched key → reject loud
  (the alarm); host absent → accept with the same TOFU semantics
  OpenSSH uses for StrictHostKeyChecking=accept-new, so e2e and
  first-connect setups still work without manual `ssh-keyscan`
  priming.

Stale-test trust gate (frontend)
  Editing a connection field after a successful test previously kept
  the prior result + cleared `trust`, but the trust checkbox could
  be re-checked and saved with the old fingerprint bound to the new
  target. CodeRabbit + cubic both flagged it as P1.

  Add a `resultStale` flag that flips when a CONNECTION_FIELD edit
  follows a successful test, surface a warning under the result, and
  disable the trust checkbox + save button until the user re-runs
  Test Connection. handleTest clears the flag.

While here
  * Surface onSave failures in the card instead of swallowing them.
  * ssh-create-page: read the executors slice from the live store
    (useAppStoreApi + getState()) at write time so a concurrent
    update doesn't get overwritten by a stale closure.
  * Split FingerprintTrustBlock into its own file to keep
    ssh-connection-card under the 600-line cap.

* fix(ssh): defend launch + handshake against several real bugs

manager_launch: trusted exec-config keys override req.Metadata.
  buildLaunchMetadata applied executor config only when the matching
  key was missing in req.Metadata. A request that carried metadata.
  ssh_host_fingerprint (or ssh_host, ssh_identity_*) could pivot the
  launch to a different target and bypass the pinned fingerprint.
  Pin a list of connection-routing keys (ssh_host, ssh_port, ssh_user,
  ssh_host_fingerprint, ssh_identity_source, ssh_identity_file,
  ssh_proxy_jump) and have the executor config always win for those.
  Cubic / CodeRabbit P1.

executor_ssh.CreateInstance: reuse the resumed session state.
  ResumeRemoteInstance attaches the recovered ssh.Client + forwarder
  to r.sessions[InstanceID] and refreshes metadata, then the lifecycle
  manager unconditionally called CreateInstance, which dialed a fresh
  client and started a second remote agentctl on top of the live one
  — leaking the resumed state. CreateInstance now early-returns from
  the existing r.sessions entry via buildResumedInstance. Cubic P1.

executor_ssh.Close: actually release tracked sessions.
  After dropping the SSHConnPool, Close was a no-op. A hard kandev
  exit (no per-session StopInstance) left forwarders and SSH clients
  open. Iterate r.sessions and Close the forwarder + client for each.
  Cubic P2.

buildAuthMethods: close the ssh-agent unix socket after handshake.
  Each agent-authenticated dial opened net.Dial("unix", $SSH_AUTH_SOCK)
  and never closed it; only PublicKeysCallback held the agent.Client
  reference and that callback is consulted exactly once at handshake.
  Return a cleanup func from buildAuthMethods + buildClientConfig and
  defer it from dialSSH / dialViaJump so the socket releases as soon
  as key exchange completes. Greptile P1 security.

waitAgentctlHealthy: probe HTTP /health, not just the TCP listener.
  The local port is owned by the SSH forwarder, which Accepts before
  it Dials the remote direct-tcpip channel — a TCP connect can succeed
  before the channel actually establishes. Issue a real GET /health
  and require a 2xx so a broken tunnel surfaces here rather than at
  the first agent operation. Cubic P1.

ssh-connection-card: also gate the trust + save on in-flight tests.
  Editing a connection field during a pending test silently kept
  resultStale=false because prev.result was still null; when the test
  returned, the new fingerprint was bound to the old form values but
  the gate let the user trust + save anyway. Treat in-flight tests as
  prior tests for staleness purposes, and preserve resultStale across
  the test's success setState. Cubic P2.

* fix(ssh): drop stale polls + preserve port inheritance + sshd extra-keys

ssh-sessions-card: race-protect polls.
  Polling setInterval + manual refresh shared one state setter, so a
  slow request that resolved after a newer call (or after a parent
  switched executorId) overwrote fresh data with stale rows. Bump a
  monotonic sequence on each refresh and drop the response when the
  sequence has moved on, plus reset on mount and invalidate on
  unmount so an in-flight reply from a teardown can't land. Cubic P2.

ssh-config parseSSHExecutorConfig: don't default ssh_port to 22.
  Reading an executor row that had no ssh_port set rewrote port=22
  on the form, which then round-tripped back to the backend. That
  silently broke ~/.ssh/config Port inheritance for aliases — a save
  could redirect connections to 22 even though the underlying alias
  was supposed to resolve to another port. Leave the field undefined
  so the backend resolver can apply the alias' value. Cubic P2.

ssh-image entrypoint: guard authorized_keys.extra mount.
  When only /authorized_keys.extra (and not /authorized_keys) was
  bind-mounted, the >> redirect ran under set -e against a missing
  destination and aborted container startup. mkdir + touch the
  destination before the append and reapply the ownership/perms.
  CodeRabbit P2.

* test(e2e): make G2 + F6 actually exercise the contract

G2 (sessions-endpoint filter) iterated `for (const s of sessions)` over
the listSSHSessions result without first asserting `length > 0` — an
empty response let the test pass without checking anything. Seed an SSH
launch before the loop and require at least one row, so a handler
regression that returned [] would now fail loud. CodeRabbit P1.

F6 (ws ssh.test parity) called apiClient.testSSHConnection twice (HTTP
both times) and compared the two HTTP responses, which would have
passed even if the WS dispatcher entry was broken. Use apiClient.
wsRequest("ssh.test", payload) for the second call so the gateway's
WS handler is actually invoked, and assert the step names match across
transports. CodeRabbit P1.

* refactor(e2e): extract SSH HTTP shapes into api-client-ssh.ts

api-client.ts was already over the 600-line lint cap on main (1528
lines); the SSH additions made it worse. Split the SSH HTTP shape
types into a dedicated module and re-export from api-client.ts so
existing callers keep working. The methods themselves stay on
ApiClient as thin pass-throughs since splitting them out across the
class boundary would change every test call site.

Also document the per-executor bound on the SSH listSessions per-row
GetTaskSession lookup (typical N < 10), and what a batch path would
need (a repo method to fetch task_sessions by id list). Cubic /
Greptile P2.

* docs(spec): correct SSH recovery keying after pool removal

The spec said ResumeRemoteInstance re-opens 'per (host, user) — one
connection serves all surviving sessions on that host', which was
the pool design. The current executor gives each session its own
SSH client, so the resume keys on the full (host, port, user,
identity_*, proxy_jump, host_fingerprint) tuple. That way two
profiles on the same host with different keys can resume side by
side without merging. Cubic P2.

* fix(ssh): IPv6 ProxyJump + port range + dedup + docker timeouts

parseLiteralProxyJump: handle bracketed IPv6 + reject invalid ports.
  The literal parser used LastIndex(":") to split host from port, which
  for [2001:db8::1]:22 left host as "[2001:db8::1]" and produced an
  invalid double-bracket address through net.JoinHostPort. Recognise
  the bracketed form explicitly via a parseBracketedHostPort helper
  and strip the brackets. Validate port is in [1, 65535] instead of
  accepting any integer (Atoi happily parses negative or out-of-range
  values). Split the host/port branch into its own function so the
  nesting stays under the golangci nestif limit.

ssh-create-page: dedupe on append.
  setExecutors([...current, next]) would double-list the same executor
  if a WS event (or another refresh) inserted it while createExecutor
  was in flight. Skip the append when current already has the id.

ssh-image fixture: time-bound docker probe + build.
  hasSSHContainerSupport ran `docker info` with no timeout — an
  unreachable / hung daemon would stall the Playwright worker
  indefinitely. Cap at 10s for the probe. buildE2ESSHImage runs
  `docker build` with no timeout; cap at 15 min so a stuck registry
  pull or BuildKit hang fails fast.

* fix(ssh): reject invalid ssh_port + retry in-net keyscan + restore D5 + doc count

executor_ssh.targetFromMetadata: reject malformed / out-of-range
ssh_port instead of silently falling back to 0 → 22 in the resolver.
"abc", "0", "70000" all now return a "must be 1-65535" error so a
broken config can't masquerade as a successful launch routed through
port 22. Cubic P2.

scanFingerprintInsideNetwork (bastion fixture): retry on empty output.
Mirrors the host-side scanFingerprintViaHost retry loop — sshd accepts
TCP before host-key negotiation completes on a cold container, so the
keyscan can come back empty on the first try. Bound at 15s; surfaces
"status=..., stderr=..." on final failure for diagnosis. Cubic P2.

executor-crud D5 (changing config…): restore the seeded executor in a
try/finally. The test pinned the executor to host=10.255.255.1 to
verify the snapshot stayed sticky on the live session, but never put
the real host back, so any later spec in the same worker that reused
seedData.sshExecutorId would dial the unroutable address and hang.
Cubic P2.

e2e-plan.md: replace the "roughly 75" estimate with the actual 80 /
17-files current count plus the ~2.4 min wall-clock. Cubic P3.

* fix(ssh): use bare mock-agent name so the remote PATH resolves it

For SSH the agent runs on a remote host whose filesystem doesn't share
paths with the kandev backend's, so the host-absolute mock-agent path
configureMockAgent computes can't apply. Extend the bare-name branch in
MockAgent.BuildCommand to include RuntimeSSH (the SSH e2e image already
bakes mock-agent into /usr/local/bin) and drop the now-redundant SSH e2e
bind-mount that worked around this by mirroring the host path into the
container.

* fix(ssh): unique sftp temp filename so concurrent uploads don't collide

When two sessions on the same task launch back-to-back they both call
ensureAgentctlOnHost which streams to <remotePath>.tmp before renaming.
With a shared .tmp name the second uploader's rename errors with
"file does not exist" once the first uploader's rename consumed the temp
file. Give each uploader its own pid+random-suffix temp; uploaders write
identical sha256-keyed content, so the rename race is then safe.

* fix(ssh): don't leak session-scoped metadata across sibling sessions

reuseExistingEnvironment copies persistent metadata from the previous
ExecutorRunning row into the new launch request so executors can pick up
worktree/container/sandbox IDs. For SSH that swept in session-scoped
keys too — agentctl PID/port, session dir, local forward port — which
made the second session's ResumeRemoteInstance reattach to the first
session's agentctl process. Mark those keys as session-scoped and skip
them in applyExecutorRunningMetadata; the same-session resume path
(applyRunningRecordToResumeRequest) still copies them because it works
off the session's own ExecutorRunning record.

* test(ssh): cover ProxyJump parsers + sibling-session metadata filter

Addresses the two coverage gaps Claude flagged on PR review round 3:

- parseLiteralProxyJump / parseProxyJumpHostPort / parseBracketedHostPort
  / parsePortString are pure parsers that gate every ProxyJump dial,
  including IPv6 (`[2001:db8::1]:22`). Table-driven tests pin the happy
  paths and the bracket / port / range edge cases — silent regressions
  in bracket stripping would otherwise break every IPv6 ProxyJump
  session without a single test failing.
- applyExecutorRunningMetadata is the function commit 044b76bb taught to
  skip session-scoped keys when reusing a sibling session's metadata.
  A direct test now asserts the SSH PID/port/session-dir/forward-port/url
  keys are filtered out while host/port/user/fingerprint/task-dir keys
  still propagate, and that an explicit request value isn't overwritten.

* fix(ssh): rename agentctl_action=uploaded to needs_upload (test endpoint)

The /api/v1/ssh/test endpoint only probes whether the agentctl sha256
sidecar already lives on the remote — it never uploads. Reporting
agentctl_action="uploaded" in the not-cached branch said the opposite
of what the step Output line said ("will upload on first launch") and
mis-signaled real-upload status to any external tooling. Rename to
"needs_upload" so the contract matches the behavior.

* fix(ssh): add ssh_host_alias to trustedExecutorConfigKeys

ssh_host_alias steers ResolveSSHTarget through ~/.ssh/config and ends up
controlling the final Host/Port/User/IdentityFile. Leaving the key out
of trustedExecutorConfigKeys let request-supplied metadata override the
executor's configured alias and pivot the launch to a different host —
the same class of attack the existing entries (ssh_host, ssh_port, …)
guard against. Promote the literal to a constant and add it to the
trusted set.

* fix(ssh): emit 1/1 completion progress when the preparer step succeeds

The final reportProgress was passing (completed=0, total=1) right after
completeStepSuccess marked the step done, so UI subscribers saw the
preparer end at 0% completion. Report 1/1 to match the actual state.

* fix(web): preserve POST/Content-Type + read latest executors at write time

- testSSHConnection: caller's options.init was spread AFTER the required
  method/headers/body, so a caller passing init.headers (or method/body)
  would silently clobber Content-Type and break server-side parsing.
  Spread options first; let the required fields win, and merge headers
  on top of caller-supplied ones.
- useSaveExecutor: the fallback path in the catch arm operated on the
  executors slice captured at hook-creation time, so a WS update that
  landed mid-flight could be overwritten. Read the current snapshot via
  the store API at write time instead, matching what the create flow
  already does.

* fix(ssh): drop "in v1" from user-facing copy

These strings render in the New SSH Executor header, the Connection card
description, and the ProxyJump field hint. "in v1" reads like internal
planning leaking into the UI; the limitations themselves still hold so
just describe them directly.

* fix(ssh): auto-create a default profile on new SSH executor

The /settings/executors index renders entries by flattening to executor
profiles; an SSH executor created with no profiles was effectively
invisible there even though the executor itself existed. The non-SSH
create flow does this implicitly because it goes through the
create-profile form; the SSH-specific flow skipped it.

POST a default profile under the freshly-created executor (same name as
the executor, no overrides) right after createExecutor, then push the
combined record to the store so the index sees it on first paint.

* feat(ssh): pre-flight the agent binary on the remote before launch

Without this, a remote that lacks the agent's required binary (e.g.
\`npx\` for any node-based ACP agent) surfaced the failure deep inside
agentctl as an opaque \`exec: "npx": executable file not found in \$PATH\`
— delivered AFTER a successful "Starting agent controller" step, which
reads as "everything's fine right up until it isn't".

The new step runs right after agentctl upload: derive the binary from
\`agent.BuildCommand(Runtime=ssh).Args()[0]\`, \`command -v\` it on the
remote, and on miss return a structured error that names the agent,
points at the missing binary, and includes the install hint sourced
from \`agent.InstallScript()\`. The message lands on the prepare-step
output (so the UI shows it inline) and on the session's error_message
(so the orchestrator surfaces it on the task).

Coverage: unit test for the error formatter (pure function, no SSH
needed) + e2e regression that mv's mock-agent aside on the sshd
container and asserts the surfaced error mentions agent name, binary,
\$PATH, and the install hint.

* feat(ssh): surface host/workdir/agentctl in the task executor popover

Parity with the Docker and Sprites paths: when the user hovers the
Executor Settings button on a task, an SSH-backed environment now shows
the connection target (\`user@host[:port]\`), the remote task dir, a
compact \`pid → remote :port → local :port\` summary of the agentctl
process, the trimmed host-key fingerprint with copy, and a paste-ready
\`ssh ...\` command that mirrors how kandev itself connects.

Sourced via a parallel \`ssh\` block on
GET /api/v1/tasks/:id/environment/live (no schema migration needed) —
the service joins the task's latest ExecutorRunning row's metadata at
fetch time, the same metadata SSH executor writes in CreateInstance.
The probe is metadata-only on purpose: the popover polls every 3-7s
and a per-poll SSH dial would be both slow and a lot of TCP traffic;
live agentctl/connection health stays under the per-executor
GetRemoteStatus path.

shouldShowExecutorEnvironmentControls now allowlists \`ssh\` so the
button actually renders for SSH tasks (Docker/Sprites/Remote-Docker
were already in the allowlist; SSH was the only runtime that mounted
a TaskEnvironment without showing the popover).

Coverage: unit tests pinning buildSSHLiveStatus's projection of
ExecutorRunning.Metadata into the popover-shaped struct (strings,
string-encoded ints, native ints, empty, malformed) + e2e regression
that launches an SSH task, opens the popover, and asserts each row.

* feat(ssh): probe enabled agents on the remote from settings

Adds a "Remote agent readiness" panel on /settings/executors/ssh/:id so
users can diagnose "which agent CLIs are actually installed on this
host" before launching a task. The same diagnosis that previously
required a launch attempt + reading the pre-flight error now sits one
button-click away on the executor's settings page.

Backend:
- New endpoint \`POST /api/v1/ssh/executors/:id/probe-agents\` dials SSH
  to the configured host and walks \`registry.ListEnabled()\`. For each
  agent it derives the binary from \`BuildCommand(Runtime=ssh).Args()[0]\`
  and runs \`command -v <binary>\` via the new exported
  \`lifecycle.ProbeRemoteBinary\` helper. Returns rows with availability,
  the resolved path on hit, and the agent's \`InstallScript()\` as a
  copy-pasteable hint on miss.
- \`ssh.RegisterRoutes\` now accepts the task service (\`GetExecutor\`) and
  the agent registry; \`cmd/kandev/helpers.go\` wires both in.

Frontend:
- New \`SSHAgentReadinessCard\` mounted above the sessions card. Manual
  refresh only (each probe dials a fresh SSH connection — too expensive
  to poll). Each row gets a status badge + a copy button for the install
  hint when the agent is missing.

Coverage:
- E2E suite: API contract (mock-agent baked into /usr/local/bin/ → row
  reports installed, with /usr/local/bin/mock-agent as resolved_at;
  move it aside → row flips to missing with the install hint flowing
  through end-to-end) + UI contract (click "Probe agents", assert the
  table renders the row).

* feat(ssh): upload remote-credentials over SFTP at launch time

The SSH executor used to accept the \`remote_credentials\` profile field for
parity with Sprites/Docker but only logged a "not implemented" warning at
launch — anyone configuring Claude/Codex/Gemini auth against an SSH host had
no way to actually get the credentials onto the remote.

Ports the Sprites credential pipeline to SSH:
- \`uploadCredentials\` orchestrates the same four phases Sprites does:
  resolve auth-secrets into env vars, run env-credential setup scripts on
  the remote, detect a local \`gh auth token\` if \`gh_cli_token\` was
  selected, and SFTP the selected file-type credentials into the remote
  user's \$HOME.
- \`sshFileUploader\` satisfies \`lifecycle.FileUploader\` via SFTP with an
  \`mkdir -p\`-equivalent walk for parent dirs and \`chmod\` for mode bits.
- \`runAuthSetupScripts\` shells the script through \`runSSHCommand\` with the
  agent's env vars prepended inline (so the script can read e.g.
  \`CLAUDE_CODE_OAUTH_TOKEN\` to materialize \`~/.claude/.credentials.json\`).
- \`resolveRemoteAuthHomeDir\` probes \`printf %s "\$HOME"\` rather than
  reusing the task workdir — credentials need to land under the user's
  true home (\`~/.claude/...\`) even when \`workdir_root\` overrides things.

Wired into \`maybeUploadCredentials\` so a credential failure is logged as
a warning but doesn't abort the launch (consistent with Sprites).

Frontend: \`useRemoteExecutorFlags\` on the profile-edit page now includes
\`ssh\` in the \`isRemote\` set so \`RemoteCredentialsCard\` renders for SSH
profiles. Previously SSH profiles silently dropped any \`remote_credentials\`
selection because the card never rendered.

End-to-end credential upload still requires a non-mock agent enabled in
e2e mode (mock-agent's \`RemoteAuth\` is intentionally empty). Coverage:
unit tests pin the SFTP \`parentDir\` walk and the shell-quoted env-prefix
builder. Existing Sprites tests already exercise the shared
\`UploadCredentialFiles\` helper.

* fix(ssh): wrap remote commands in a login shell so nvm/asdf PATH applies

sshd's exec channel runs commands via a non-interactive non-login shell.
That doesn't source ~/.profile / ~/.bash_profile / ~/.bashrc, so any
binary added to PATH by nvm/asdf/brew/etc. is invisible to:

- the launch-time pre-flight probe (`command -v <agent-binary>`)
- the readiness panel's per-agent probe
- and the nohup'd agentctl process itself

End result: a user with `npx` installed through nvm sees 'X requires
npx on the remote' and can't launch any node-based ACP agent.

Fix: introduce `WrapLoginShell(shell, cmd)` that wraps cmd in
`${shell} -lc '<cmd>'` (with POSIX-safe single-quote escaping) and
default shell to bash when empty. Thread the configured shell through
ProbeRemoteBinary, startRemoteAgentctl, preflightAgentBinary,
runOneAuthSetupScript, and resolveRemoteAuthHomeDir. The shell is
read from per-profile metadata via the new MetadataKeySSHShell
('ssh_shell') key — flows in via the existing executor-config merge.
The probe handler also accepts an optional {shell} body so the UI can
re-probe under whichever shell the user picked.

Default keeps existing behavior for users who don't set a shell (we
just become a login bash instead of bare sh -c). Unit tests pin the
quote-escaping contract.

* feat(ssh): move readiness card to profile page + add shell picker and install button

Four UX changes that together make the SSH-profile setup flow feel right:

1. Save redirect after creating a new SSH executor now lands on the
   profile-edit page (`/settings/executors/{profileId}`) instead of
   the executor page. Profiles are where users actually configure how
   the host gets used.

2. `SSHAgentReadinessCard` relocates from the executor page to the
   profile-edit page (top, conditional on `executor.type === 'ssh'`).
   The host-level executor page keeps Connection + Sessions.

3. Card gains a shell selector that auto-detects available shells on
   the remote and persists into `profile.config.shell`. Changing the
   shell clears the cached probe so the user re-probes under the new
   shell — PATH depends on which init files get sourced.

4. Each missing-agent row gets an Install button that runs the agent's
   InstallScript via /install-agent (login-shell wrapped). Spinner
   replaces the button while it runs; on completion the card auto
   re-probes. No confirmation dialog — the button is the consent.

E2E: probe-shells reports bash+sh on the alpine image (zsh absent),
install endpoint runs mock-agent's deterministic InstallScript,
unknown agent_id is a 404, and the profile-page UI round-trip works
end-to-end.

* refactor(ssh): drop install-agent endpoint and Install button

Install scripts assume environments we don't control on the remote
(package managers, sudo, network access); the failure modes weren't
recoverable from the UI. Pulling the one-click install — copy-and-paste
hint stays.

Backend: delete POST /api/v1/ssh/executors/:id/install-agent and
everything that fed it (httpInstallAgent / installAgent /
runInstallScript / runSSHCommandShim / InstallAgentRequest|Response /
findAgentByID / joinOutputs / capBytes). No other caller of those
helpers.

Frontend: drop the Install button + spinner + collapsible output panel
from ReadinessRow. The 'Install hint' column reverts to copy-only —
same hint string sourced from agent.InstallScript(), users run it on
the remote themselves. Remove installSSHAgent / SSHInstallAgentRequest /
SSHInstallAgentResponse from the api client + types + e2e helpers.

Survives: probe + readiness panel, shell selector + /probe-shells
endpoint, login-shell wrap on every SSH command (the actual fix for
nvm/asdf users).

* fix(ssh): persist shell choice under the same key the launch path reads

Profile config saved the shell selection as 'shell' but the SSH
executor at launch time reads MetadataKeySSHShell which is 'ssh_shell'.
buildLaunchMetadata copies profile.config keys verbatim into
req.Metadata, so the mismatch meant sshShellFromMetadata always
returned empty and WrapLoginShell silently fell back to bash —
defeating the whole point of letting users pick zsh/sh/etc.

The probe path bypasses metadata (the UI passes shell directly in
the request body) which is why the readiness panel reported codex
as installed under the user's zsh while the launch then failed with
'codex requires npx on the remote' under bash.

Align both sides on 'ssh_shell'.

* fix(ssh): propagate profile ssh_shell into launch metadata

The settings UI saved the shell selection on profile.Config["ssh_shell"],
but applyProfile in executor_state.go only forwards an allow-listed set of
profile.Config keys (ssh_workdir_root, remote_credentials, etc.) into
launch metadata — ssh_shell wasn't on the list. The launch path's
sshShellFromMetadata therefore always returned empty and WrapLoginShell
silently fell back to bash, so a user who installed npx via zsh+nvm hit
'npx not found in $PATH' from the preflight while the readiness probe
(which takes shell straight from the request body) still showed the
agent as available.

Mirror the existing ssh_workdir_root propagation for ssh_shell and pin
both directions (present + absent) with a unit test on resolveExecutorConfig.

* fix(orchestrator): make profile.Config authoritative for ssh_workdir_root + ssh_shell

A task that supplied ssh_workdir_root or ssh_shell in its metadata won
when the profile had no value set — `applyProfile` only overwrote
metadata when profile.Config had a non-empty value, so the task-supplied
value squeezed through the empty-profile case. Both keys steer remote
behavior (workdir target, login shell that runs every command), so a
task author should never be able to redirect them.

Two things, bundled because they touch the same allow-list:

1. Replace the long if-chain in applyProfile with a small declarative
   set of tables (passthrough / rename / authoritative). Behavior for
   the existing keys (remote_credentials, git_user_*, image_tag, …) is
   unchanged.
2. Add a new authoritative tier — ssh_workdir_root + ssh_shell — whose
   profile value ALWAYS wins, including when empty. The reader-side
   helpers (SSHExecutor.workdirRoot, sshShellFromMetadata) already
   handle the empty fall-through to a default.

Pin both directions with subtests: authoritative keys clobber any
task value (empty profile included); ordinary passthrough keys keep
their existing "only set if non-empty" semantics so task-supplied
git_user_name still survives.

* refactor(ssh): pass remote workspace explicitly to createRemoteAgentInstance

startAndForwardAgentctl was briefly mutating the caller's *ExecutorCreateRequest
(overwriting req.WorkspacePath with the remote task dir, then restoring it
after the create-instance POST). That's exactly the boring-and-direct sin —
a callee reading from a struct the caller is mutating around the call.
Pass the remote workspace path as an argument so the dance disappears and
req stays read-only inside this leg.

* fix(ssh): surface SHA read errors instead of swallowing them as "not cached"

SSHCheckAgentctlCached treated any error from reading the remote
sha256 sidecar as "binary not on remote" by returning (false, nil).
A transient SSH transport failure therefore masqueraded as
"needs_upload" in the test endpoint's UI badge — the user retries
the test, gets the same misleading hint, and doesn't see that the
connection itself is flaky.

Append `|| true` to the remote cat so a missing file is a successful
empty-stdout read (the genuine "not cached" path), and surface a real
error to the caller for everything else.

* fix(ssh): handle int/int64/float64 metadata in session listing

intFromMetadata only accepted string values, which is what the SSH
executor writes via strconv.Itoa — but ExecutorRunning.Metadata
round-trips through JSON, and there's no guarantee a numeric value
isn't unmarshalled back as float64 somewhere along the way. Anything
that wasn't a string silently became 0 in the sessions endpoint,
making the SSHSessionsCard's "Remote agentctl port" / "Local fwd
port" columns render as 0 for any row that took a non-string path.

Match the smarter shape already used in service.mdInt
(internal/task/service/service_task_environments.go) so both readers
agree on the projection.

* refactor(e2e): drop duplicate SSH HTTP shapes module

api-client-ssh.ts was a literal copy of apps/web/lib/types/http-ssh.ts
with `Body` suffixed onto every type — 75 lines of pass-through that
buy nothing. The e2e ApiClient now imports the canonical shapes from
lib/types/http-ssh directly, drops the re-export pile at the bottom
of api-client.ts, and the duplicate module is deleted.

No spec referenced the *Body names; the grep is clean.

* fix(ssh): make Content-Type win over caller-supplied headers in ssh-api

In `{ "Content-Type": "application/json", ...headers }` the spread runs
last, so a caller passing `init.headers = { "Content-Type": "x" }` would
override the JSON content type and break server-side parsing — the exact
opposite of what the file's comment claimed. The outer `init` spread is
ordered correctly already; this fixes the inner `headers` literal in
the same direction (spread first, JSON literal last) across all three
SSH client functions. Per CodeRabbit thread.

* fix(ssh): distinguish 404 from server errors when resolving SSH executor

resolveSSHTarget collapsed every GetExecutor error into 404 — a transient
storage outage, timeout, or canceled context made it look like the
executor was deleted. Introduce models.ErrExecutorNotFound, wrap it in
the SQLite repo's sql.ErrNoRows case, and use errors.Is in the SSH
handler so only "row doesn't exist" maps to 404; everything else stays a
500 with the underlying error attached. Per CodeRabbit thread.

* fix(ssh): surface latestRunningForTask repo errors instead of swallowing them

latestRunningForTask returned (nil) on any error from ListTaskSessions or
GetExecutorRunningBySessionID. Transient storage failures rendered as
"no SSH live status" on every popover poll, indistinguishable from the
genuine "task has no running session yet" case. Return the error to the
caller; GetSSHLiveStatus now propagates it, and the handler already logs
+ omits the ssh block on a non-nil error so polling stays graceful.

A session without an ExecutorRunning row is the one expected miss — match
on models.ErrExecutorRunningNotFound and skip quietly. Per CodeRabbit
thread.

* fix(ssh): reset readiness card state when executorId changes

The mount effect only reset the sequence token, so switching executors
left the previous one's rows / error / hasProbed visible until the user
clicked Refresh — reads as "still loading" while actually showing stale
data. Clear setRows / setError / setHasProbed / setLoading in the same
effect so a fresh executor starts blank. Per CodeRabbit thread.

* fix(ssh): copy the full fingerprint, not the truncated display value

The popover renders fingerprints as a hash suffix (e.g. ...abcdef012345)
because the full SHA256 is verbose, but the copy button reused the
displayed string — users got an unusable truncated fingerprint instead
of the real one. Add an optional copyValue on FieldRow that overrides
the clipboard payload, and wire the fingerprint row to it. Per
CodeRabbit thread.

* fix(ssh): keep port forwarder alive on transient Accept errors

SSHPortForwarder.serve returned permanently on any non-orderly-close
Accept error — including transient ones like EMFILE (process FD table
exhausted) or ECONNABORTED. A single hiccup orphaned the forwarder, the
remote agentctl kept running, and the user's session went dark until the
backend was restarted.

Match net.ErrClosed explicitly for the orderly-close path; for anything
else, log a warning and continue the loop so the forwarder survives
recoverable per-accept faults. Per claude[bot] review thread.

* fix(ssh): guard ResumeRemoteInstance against duplicate attach

CreateInstance had an early-out for the case where a previous resume
already populated r.sessions[InstanceID], but ResumeRemoteInstance
itself didn't — a retry would dial a second SSH connection, start a
second forwarder, and overwrite the map entry. The original client +
forwarder leaked until the SSH idle timeout reaped them, and the agent
stream briefly bounced between the two.

Mirror the guard so the two entry points to r.sessions[InstanceID]
agree. Per claude[bot] review thread.

* fix(ssh): pipe auth-setup env vars via stdin to keep secrets out of cmdline

runOneAuthSetupScript inlined env vars as `KEY=value KEY=value <shell>
-lc '...'`. That string is what becomes argv of the outer bash invoked
by sshd, so on the remote host any process the same UID can read sees
the secrets in `ps aux` / `/proc/PID/cmdline` for the brief window the
setup script runs. Single-tenant deployments are unaffected in practice
but the leak is real on shared hosts.

Add a runSSHCommandStdin variant that feeds session.Stdin; replace the
inline env prefix with a stdin payload of `KEY='quoted'` lines sourced
by the wrapped shell under `set -a; . /dev/stdin; set +a`. Env never
appears on the remote shell's argv; it's only visible in /proc/PID/environ
of the setup process itself, which is the minimum surface for "pass an
env var to a remote process".

Replace buildSSHEnvPrefix with buildSSHEnvInitScript; update the test.
Per claude[bot] review thread (greptile P1 finding).
2026-05-25 10:04:40 +01:00
Carlos Florêncio 68aefc0e08 feat(web): system settings pages (status, database, backups, logs, updates, licenses, about) (#942) 2026-05-25 09:04:16 +01:00
Zaybrah ec21c71775 feat(agentctl): add Azure Repos PR creation (#1066) 2026-05-25 09:03:05 +01:00