jcode (1jehuang/jcode) joins the CLI registry as the `jcode` run mode:
Run menu, phone overview, TUI, quick-start and POST /api/sessions
(`jcodeConfig: { model?, resumeSessionId? }`), local, SSH and Docker
(dedicated agent-image layer), plus codeman doctor and install.sh
through the generated catalogue. Measured on a live jcode 0.98.1 pane.
- Work detection reads jcode's braille status row and `<n>>` composer;
alt screen with mouse strip and PageUp/PageDown paging like opencode.
- Every jcode TUI is a client of one shared per-user daemon whose tools
run with the daemon's env, so no agent skill injection and no JCODE_*
envOverrides prefix.
- New `capabilities.sharedDaemon`: a session kill spares descendants
outside the pane's process group, so closing the tab that started the
daemon no longer cuts every other jcode session off (measured).
- last-response answers an honest empty for an external CLI with no
transcript reader that the pane segmenter cannot read (jcode alone).
- GET /api/jcode/status via the generic registry resolver.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
`getChildPids` ran `pgrep -P <pid>` per node and recursed with no visited set, no
depth limit and no node cap. Two further sites forked a `pgrep` per session on
every stats tick.
Across ~28 adopted tmux trees the fan-out exploded, and because each `pgrep`
blocks in the kernel while reading `/proc/<pid>/cgroup` under WSL, none returned
while the walk kept spawning more. Observed: ~13,000 `pgrep` processes stuck in
D-state out of ~39,000 total, load average above 13,000, and a machine only
recoverable by restarting WSL — which cost every running session. Every diagnostic
command timed out too, because they read /proc as well.
- ONE `ps -eo pid=,ppid=` snapshot, cached briefly and refreshed asynchronously
with a single-flight guard. Async matters: under the same procfs pathology,
`execSync`'s timeout cannot return (spawnSync waits for the unkillable child),
which would freeze the server where a hung async poll only costs staleness.
- The traversal moved to `proc-tree.ts` as a pure function — breadth-first, with a
visited set (a stale snapshot can contain a cycle), a depth cap and a node cap,
both reporting when they truncate. Pure so the regression tests can exercise the
shipped code rather than a copy of it.
- The kill path forces a fresh snapshot: the wait between SIGTERM and the survivor
re-scan (200ms) sits inside the cache TTL (2000ms), so reading the cache there
would return pre-SIGTERM state and aim SIGKILL at stale PIDs. That wait is
bounded, so a wedged `ps` cannot stop killSession from reaching its
process-group and tmux fallbacks.
- Any `ps` error keeps the previous snapshot instead of caching partial output as
fresh; a truncated table would make whole subtrees invisible to the kill path.
13 tests, including one that drives TmuxManager itself — with the caps bypassed at
the call site, 3 of them fail. The snapshot refresh is stubbed there, because
otherwise the manager runs a real `ps`, replaces the fixture, and the test
silently measures the machine's own process tree instead.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Codeman maintainer