Add idle-state classifier and Solo-parity timer tools

Classifies every running child as idle/working/thinking/permission/error
using one of three pluggable strategies (output_activity,
osc_title_stability, osc_title_status) plus optional regex promoters
applied to the tail of recent output. State and last-match reason are
exposed via MCP on ProcessInfo and get_process_status. Per-preset
configuration lives on a new preset.IdleDetection block with bundled
defaults for the first-party claude/codex/opencode presets.

OSC title plumbing is exposed as Emulator.Title(), polled from the
session pump after each emulator write so title-change activity feeds
into the classifier without an extra cgo callback.

The MCP timer surface expands to match Solo: timer_set,
timer_fire_when_idle_any/all, timer_cancel, timer_pause, timer_resume,
timer_list. timer_wait is now a thin wrapper that shares the same
manager so it shows up in timer_list while pending. Timer bodies are
delivered to the owner process through the existing
InjectAsOrchestrator path. Top-level (non-agent) callers can attach
timers to a specific process via owner_process_id; omitting it grants
universal cancel/pause/resume/list privileges.

The sidebar gains a state glyph per process row and appends a
nearest-timer indicator when one is pending or paused.

Tests: idle_test.go covers the classify() pure function across the
three strategies and regex promotion; timers_test.go covers the
manager. Harness scenarios cover output_activity, osc_title_stability,
osc_title_status, and regex promotion, plus timer_set delivery,
cancel, pause/resume, idle_any-on-transition, idle_all-pending, and
idle_all-already-satisfied. A new wait_until_mcp harness step type
polls an MCP method until an assertion holds.
This commit is contained in:
2026-05-15 09:49:59 +01:00
parent 1af032472b
commit 2b9e1ed77c
31 changed files with 2318 additions and 38 deletions

View File

@@ -61,12 +61,11 @@ type toolHost struct {
prompter trustPrompter
scratch scratchpadSink
timersMu sync.Mutex
nextTimer int
timers *timerManager
}
func newToolHost(sess *Session, pads *scratchpad.Store, launcher *Launcher, presets preset.Set, tr *trust.Store, cols, rows uint16) *toolHost {
return &toolHost{
h := &toolHost{
sess: sess,
pads: pads,
launcher: launcher,
@@ -76,6 +75,28 @@ func newToolHost(sess *Session, pads *scratchpad.Store, launcher *Launcher, pres
defaultRow: rows,
startedAt: make(map[string]time.Time),
}
h.timers = newTimerManager(sess)
// Plug the timer manager into the session's state-change fan-out so
// idle-aware timers fire when watched children transition into idle.
// Tests can construct a host with a nil session for sizing checks —
// those never run timers, so the subscribe is skipped.
if sess != nil {
sess.Subscribe(timerListenerAdapter{m: h.timers})
}
return h
}
// timerListenerAdapter forwards OnChildStateChanged into the timer
// manager and ignores the other ChildEventListener methods. The
// session's listener API is by-interface, so we wrap the manager
// rather than make it implement the full surface.
type timerListenerAdapter struct{ m *timerManager }
func (a timerListenerAdapter) OnChildSpawned(*Child) {}
func (a timerListenerAdapter) OnChildExited(*Child) {}
func (a timerListenerAdapter) OnPTYOut(string, []byte) {}
func (a timerListenerAdapter) OnChildStateChanged(id string, st IdleState) {
a.m.onChildStateChanged(id, st)
}
func (h *toolHost) SetSize(cols, rows uint16) {
@@ -531,6 +552,7 @@ func (n *chunkNotifier) OnPTYOut(id string, chunk []byte) {
default:
}
}
func (n *chunkNotifier) OnChildStateChanged(string, IdleState) {}
func (h *toolHost) GetProcessPorts(callerID, processID string) ([]mcp.PortSighting, error) {
c := h.sess.FindChild(processID)
@@ -725,27 +747,59 @@ func (h *toolHost) RequestHumanAttention(callerID, processID, reason string) err
return nil
}
// TimerWait is the legacy fire-and-forget delay timer. It now wraps
// TimerSet with an empty body — defaultFireFn substitutes the
// "[system] Your timer […] has completed." line so behaviour matches
// the original API. New callers should use timer_set with an explicit
// body.
func (h *toolHost) TimerWait(callerID string, seconds float64, label string) (string, error) {
caller := h.sess.FindChild(callerID)
if caller == nil {
return "", mcp.Errorf(mcp.ErrorKindNotFound, "caller %q not known to patterm", callerID)
return h.timers.TimerSet(callerID, "", label, seconds)
}
func (h *toolHost) TimerSet(callerID string, args mcp.TimerSetArgs) (mcp.TimerHandle, error) {
owner := resolveTimerOwner(callerID, args.OwnerProcessID)
id, err := h.timers.TimerSet(owner, args.Body, args.Label, args.Seconds)
if err != nil {
return mcp.TimerHandle{}, err
}
h.timersMu.Lock()
h.nextTimer++
id := fmt.Sprintf("t%d", h.nextTimer)
h.timersMu.Unlock()
if label == "" {
label = id
return mcp.TimerHandle{ID: id}, nil
}
func (h *toolHost) TimerFireWhenIdleAny(callerID string, args mcp.TimerFireWhenIdleArgs) (mcp.TimerFireWhenIdleResponse, error) {
owner := resolveTimerOwner(callerID, args.OwnerProcessID)
return h.timers.TimerFireWhenIdleAny(owner, args.Body, args.Label, args.Watched, args.MaxWaitSeconds)
}
func (h *toolHost) TimerFireWhenIdleAll(callerID string, args mcp.TimerFireWhenIdleArgs) (mcp.TimerFireWhenIdleResponse, error) {
owner := resolveTimerOwner(callerID, args.OwnerProcessID)
return h.timers.TimerFireWhenIdleAll(owner, args.Body, args.Label, args.Watched, args.MaxWaitSeconds)
}
// resolveTimerOwner picks the owner process for a timer. Explicit
// owner_process_id wins; otherwise the caller's own id is used.
// Top-level MCP clients (no callerID) must provide owner_process_id
// explicitly.
func resolveTimerOwner(callerID, explicit string) string {
if explicit != "" {
return explicit
}
go func() {
time.Sleep(time.Duration(seconds * float64(time.Second)))
if !caller.IsLive() {
return
}
line := fmt.Sprintf("[system] Your timer [%s] has completed.\r", label)
_ = caller.InjectAsOrchestrator([]byte(line))
}()
return id, nil
return callerID
}
func (h *toolHost) TimerCancel(callerID, id string) error {
return h.timers.TimerCancel(callerID, id)
}
func (h *toolHost) TimerPause(callerID, id string) error {
return h.timers.TimerPause(callerID, id)
}
func (h *toolHost) TimerResume(callerID, id string) error {
return h.timers.TimerResume(callerID, id)
}
func (h *toolHost) TimerList(callerID string) ([]mcp.TimerInfo, error) {
return h.timers.TimerList(callerID), nil
}
// ───────────────────────────────────────────────────────────────────
@@ -816,6 +870,10 @@ func (h *toolHost) processInfoOf(c *Child) mcp.ProcessInfo {
t := h.trust.IsTrusted(c.PresetRef)
info.Trusted = &t
}
if s := c.IdleState(); s != StateUnknown {
info.IdleState = string(s)
info.IdleReason = c.IdleReason()
}
return info
}