* fix(acp): flush straggler chunks promptly after session/prompt returns
After session/prompt returns, HAPI drains buffered agentMessageChunk text
and marks the turn complete, but leaves the message handler alive. Models
with long streaming tails (DeepSeek, GPT-5.5) continue to push chunks
after that drain, causing text to accumulate in the buffer and only appear
when the next user prompt triggers the pre-prompt drain — showing up in
the wrong turn with broken markdown.
Start a 50ms interval timer after the post-prompt drain that keeps calling
drainBuffers() on the live handler for up to 6 seconds, so straggler
chunks are emitted within one poll tick instead of waiting for the next
prompt. The timer is cancelled when the next prompt starts (pre-prompt
drain replaces the handler) or on disconnect.
Fixes#609. Also applies to Gemini and Kimi which share the same
AcpSdkBackend code path.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(acp): gate next turn's handler swap on previous turn's late drain
Addresses the github-actions review on #730: the fire-and-forget late-flush
timer let `prompt()` resolve while stragglers were still possibly arriving,
so a rapid follow-up prompt could either drop those chunks (during the
old null-handler gap) or leak them into the new turn's onUpdate.
Pre-prompt phase now keeps the previous turn's handler alive across the
quiet wait (bounded by LATE_FLUSH_WINDOW_MS) and swaps in a single phase
immediately before sending the new session/prompt. The post-prompt late
flush timer is unchanged — it still emits idle-window stragglers promptly
without delaying the ready signal or `setModel` / `setConfigOption`.
Adds three regression tests: late-chunk flushing within the window,
pre-prompt straggler attribution to the previous turn's onUpdate, and
disconnect cancelling the timer. Removes now-unused
PRE_PROMPT_UPDATE_DRAIN_TIMEOUT_MS.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(acp): await late drain so ready never fires before stragglers emit
Follow-up to bot's repeated MAJOR on #730: even with the pre-prompt gate,
the fire-and-forget late-flush timer let `prompt()` resolve before slow
tails finished, so the launcher's `ready` signal (and any user follow-up
queued against it) raced with text still being emitted to the current
turn's onUpdate.
Replace the setInterval timer with a synchronous `drainLateBuffers()`
awaited in `prompt()`'s finally before turn_complete is sent. It polls
drainBuffers every LATE_FLUSH_INTERVAL_MS so the UI keeps streaming
smoothly during the wait, and exits early once the model has been quiet
for LATE_FLUSH_QUIET_PERIOD_MS (250 ms — adds negligible latency to fast
models like Claude whose tail is typically <100 ms) or the
LATE_FLUSH_WINDOW_MS upper bound (6 s) elapses.
Side effects:
- Restore PRE_PROMPT_UPDATE_DRAIN_TIMEOUT_MS (1200 ms): the pre-prompt
drain is now just a safety net since the post-prompt wait guarantees
the previous turn is quiet by the time the next prompt starts.
- Drop the `lateFlushTimer` field, `startLateFlushTimer`,
`stopLateFlushTimer`, and their disconnect/pre-prompt cleanup calls.
- Update the "emits straggler chunks" test to assert ordering before
turn_complete, and add a fast-path test confirming the drain exits
promptly when the model is quiet.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(acp): anchor late-flush quiet window to entry, not stale lastSessionUpdateAt
Bot's third MAJOR on #730: drainLateBuffers() compared elapsed time
against lastSessionUpdateAt, which can already be older than
LATE_FLUSH_QUIET_PERIOD_MS by the time the method starts — e.g. when the
model emits chunks early in the turn, pauses, then sends stopReason. In
that case the first loop iteration sees a stale "quiet" reading and
returns immediately, missing any straggler that arrives just after
session/prompt resolves; the chunk then sits in the buffer until the
next prompt's pre-prompt drain.
Anchor the quiet check to max(lastSessionUpdateAt, entry time) so we
always observe at least one quiet period from method entry regardless of
when the last chunk was. Adds a regression test that fires a chunk
early, awaits a 200ms pause, schedules a post-resolution straggler, and
asserts it lands before turn_complete.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* docs(acp): correct LATE_FLUSH_QUIET_PERIOD_MS comment after entry-anchor fix
The previous note claimed the 250ms quiet check "exits early for fast
models, adding negligible latency". That was true before commit 512d6a4
when the check compared against lastSessionUpdateAt; with the entry-time
anchor, drainLateBuffers always observes at least one full quiet period.
Document that this minimum wait is the price of catching post-resolution
stragglers from paused-mid-turn models.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
---------
Co-authored-by: HAPI <noreply@hapi.run>
Remote cursor launcher now mirrors local launcher by writing cursorSessionId
to hub metadata as soon as --resume is known, before the agent init event.
POST /sessions/:id/resume maps resume_unavailable to 409 with clearer guidance.
Fixestiann/hapi#744
Co-authored-by: Cursor <cursoragent@cursor.com>
The Claude effort selector (New Session config + in-session composer) only
offered auto/medium/high/max, missing `low` and `xhigh` — yet `claude --effort`
actually accepts low/medium/high/xhigh/max. Add the two missing levels in both
places so the selector faithfully mirrors the CLI.
Extract the level list + labels into one shared constant
(@hapi/protocol: shared/src/effort.ts, mirroring CLAUDE_MODEL_PRESETS) so the
two UIs derive from a single source and can't drift again. No backend change:
the effort string is free-form end-to-end through to the --effort flag.
ultracode is intentionally excluded — it is a TUI-only /effort session setting,
not an --effort value (the CLI rejects `--effort ultracode`).
The "Default" model in NewSession sends no --model flag, so Claude CLI
picks its own default (e.g. Opus 4.7 [1m] on Pro accounts). The web
status bar then falls back to 200K - 10K headroom = 190K because the
Claude SDK path never plumbs the real per-model contextWindow through
to the wire-level `modelContextWindow`, unlike the ACP/Codex backends.
Fix the gap in three places:
- cli/src/claude/sdk/types.ts: declare optional `modelUsage` on
SDKResultMessage to surface what Claude CLI already emits
(`modelUsage[<model>].contextWindow`).
- cli/src/claude/utils/sdkToLogConverter.ts: on system.init, capture
the resolved model name (full form with `[1m]` suffix) and derive
an initial contextWindow from the suffix. On every assistant
message, inject the cached contextWindow into `usage.context_window`
when absent. On result, refine the cache with the authoritative
value from `modelUsage`.
- web/src/chat/normalizeAgent.ts: forward `context_window` through
the assistant usage normalization, so the existing reducer path
(reducer.ts:175 → StatusBar.tsx:175) can render the real window.
Closes#719.
* feat(opencode): support plan mode
* feat(opencode): support reasoning effort
* feat(opencode): surface context usage in web
Bridge OpenCode ACP usage updates into the existing token-count pipeline so the web status bar can show live context and cache information without a separate UI path.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(opencode): restrict plan mode to remote, rollback reasoning effort on failure
- Block local OpenCode plan startup (tools not enforced in local path)
- Allow remote OpenCode plan only (ACP permission handler denies tools)
- Guard web /permission-mode endpoint for local OpenCode plan sessions
- Rollback session reasoning effort when OpenCode rejects set_config_option
- Wire rollback callback through opencodeLoop to runOpencode closure
- Add tests: local plan rejected, remote plan allowed, web guard, effort rollback
* fix(web): auto-retry OpenCode models query to populate model selector without refresh
- Retry early failures (RPC may still be registering on new sessions)
- Poll briefly until availableModels is non-empty
- Stop polling once model options are discovered
- Add tests for retry/poll/stop policy
* fix(opencode): cap model discovery polling
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
* Add Kimi agent support via ACP protocol
Add full integration for the Kimi Code CLI agent using the standard
Agent Client Protocol (ACP). Includes:
- kimi command and CLI registry wiring
- Local launcher spawning kimi directly
- Remote launcher with ACP stdio transport via AcpSdkBackend
- Session management with resume support
- Permission handler supporting all Kimi permission modes
- Terminal UI display component
- Runtime config resolving model from env and ~/.kimi/config.toml
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* Fix Kimi ACP tool call input decoding on web
Kimi streams tool arguments as JSON text inside the content array
(e.g. {\"command\": \"df -h\"}) instead of rawInput/kind. The handler
now extracts input from three sources in priority order:
1. rawInput (Claude/Codex path)
2. kind + title fallback (Gemini path)
3. content JSON text (Kimi path)
Also handles:
- rawInput: null no longer blocks the kind+title fallback
- Title prefixes like \"Shell: free -h\" are stripped to extract args
- Stale placeholder inputs are re-derived when the title updates
- Normalized kind aliases (shell, run, read_file, write, etc.)
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* Add kimi support to web UI
* Fix some bugs
* fix(kimi): dedupe repeated tool_call display in terminal UI
* fix(web): keep tool block immutable so React detects input/state changes
* fix(web): recognise Kimi subagent titles like 'Agent: ...' as subagent tools
* fix(web): allow-for-session for ACP agents (kimi, cursor)
PermissionFooter treated all non-codex sessions as Claude, sending
Claude-specific acceptEdits/allowTools to ACP agents that don't
support them. Hub rejected acceptEdits for kimi, and the ACP
PermissionAdapter ignored allowTools.
- Only show 'allow all edits' for Claude sessions
- Send decision: approved_for_session for non-Claude ACP agents
- Update status display to check decision field
* fix(web): lookup subagent sidechains by tool-call id instead of msg id
* fix(web): don't trim newest messages when loading older history
fetchOlderMessages was using trimVisible(merged, 'prepend') which kept
the oldest 400 messages and dropped the newest ones. This caused:
1. Latest messages to disappear when user loaded older history
2. User to see no visible change when new old messages were drowned
in the 400-message window.
Remove the incorrect trim so all fetched older messages are retained
alongside the current window. Subsequent ingestIncomingMessages
(append mode) will naturally keep the window bounded when new agent
messages arrive.
* fix(cli): route Kimi session resume to runKimi instead of runCursor
Kimi was present in AGENT_FLAVORS but dispatchLocalResume had no branch
for it, so resuming a Kimi session fell through to the Cursor launcher.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(cli): pass selected model to Kimi ACP backend via KIMI_MODEL env
createKimiBackend was ignoring opts.model and only setting KIMI_PROJECT_DIR.
Use buildKimiEnv so the selected model reaches the subprocess as KIMI_MODEL.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(web): bound message window on older loads with dedicated larger cap
fetchOlderMessages was keeping all messages unbounded, causing
sessionStorage bloat on repeated pagination. Reintroduce trimming
with OLDER_LOAD_WINDOW_SIZE (800) so growth is capped while the
newest messages are still preserved for far longer than before.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(web): revert sidechain lookup to message id, matching tracer/grouping pipeline
tracer.ts sets sidechainId to the parent message id, and reducer.ts groups
by sidechainId. A prior commit changed reducerTimeline.ts to look up by
tool-call id (c.id), which broke sidechain attachment. Revert to msg.id
so the lookup matches the actual grouping key end-to-end.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(cli): gate ACP title prefix stripping to known tool-kind labels
extractTitleArgument stripped at the first colon unconditionally,
corrupting commands/paths like curl http://localhost:3000 or
Windows paths. Now it only strips when the prefix normalizes to
the same tool kind as the event, verified via regex.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
* fix(shared): include kimi in isCodexFamilyFlavor for ACP permission UI
Kimi is an ACP-style agent that supports the abort decision, but
isCodexFamilyFlavor excluded it, so PermissionFooter rendered the
non-Codex Allow/Deny UI without the Abort button.
via [HAPI](https://hapi.run)
Co-Authored-By: HAPI <noreply@hapi.run>
---------
Co-authored-by: HAPI <noreply@hapi.run>
Emit throttled ACP reasoning snapshots with stable stream ids so OpenCode reasoning updates render live without one row per token.
Collapse matching reasoning snapshots in the web timeline and avoid stale session 404 redirects during refetch.
Tests: targeted Vitest suite and bun typecheck.
Co-authored-by: twshe <twshe@outlook.com>
