- Reject multi-line prompts end-to-end: schema refines on promptText/
launchCommand, runtime check in resolvePrompt (prompt-file content;
trailing newlines tolerated), matching cron-ui form validation — delivery
is single-line only, so multi-line was silently corrupted (typed mode
fused lines, paste mode submitted partials)
- Close the workingDir confinement bypass (arbitrary server-side file read,
e.g. workingDir=/proc + /proc/self/environ): realpath-resolve workingDir
before the containment check, reject '/' and blocked/pseudo-fs trees
(/proc, /sys, /dev + the attachment-guard blocklist) at fire time AND at
job create/update (workingDir must exist and be a directory)
- Session lifecycle: new per-job autoClosePreviousSession (default true,
recurring schedules only; ignored for 'once') — the previous run's
still-open session is closed via the normal cleanupSession path when the
next run fires; UI switch added; 50-session cap math documented in
docs/cron-guide.md §8
- skip_if_same_agent_running: count only live sessions (exclude
stopped/error dead tabs), exclude sessions created by this job's own runs
(fixes the fire-once-then-skip-forever self-deadlock), and a skipped
'once' job stays armed and retries next tick instead of being consumed;
liveness filter mirrored in cron-ui _countActiveAgents
- Wire launchCommand (was accepted+documented but dead): shell mode sends
it via writeViaMux as the first input line after startShell readiness
(single-line, schema-enforced); form field shown for shell agent type
- Record delivery failures: a false writeViaMux result now fails the run
instead of recording a false 'prompt_sent'
- Cap saved jobs at MAX_CRON_JOBS (100) to bound state.json growth
- Surface field-specific schema messages (drop parseBody custom
errorMessage on cron create/update)
- Tests: workingDir create/update validation, /proc bypass regression,
single-line enforcement (schema+runtime+trailing-newline tolerance),
live/own-session skip filtering, once-skip re-arm, auto-close on/off/once,
job-count cap
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- docs/cron-guide.md: comprehensive user/operator guide for the Cron
feature (fields, schedule types, prompt security, execution flow, API,
SSE, limits, troubleshooting), sourced from the implementation.
- SPEEDRUN.md: fast-execution protocol for Claude grounded in this repo's
real commands and CLAUDE.md guardrails.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SSVnYek4nq4Ztmbb3SrCA5
Codeman maintainer