Bug: Background Bash Job Status Never Updates in System Reminders

Issue Summary

When background bash jobs are created using the Bash tool with run_in_background: true, the system reminder generator continues to report these jobs as (status: running) indefinitely, even after the jobs have completed, been killed, or terminated naturally.

Technical Details

Observed Behavior:

1. Background bash jobs are created via the Bash tool with run_in_background: true
2. Jobs execute and eventually complete or are terminated via the KillShell tool
3. The BashOutput tool correctly reports job status as <status>completed</status> or <status>killed</status>
4. However, system reminders continue to report the same jobs as (status: running) perpetually

Expected Behavior:

• System reminders should reflect the actual current status of background jobs
• Once a job completes or is killed, reminders should either:
• Stop being generated, OR
• Update to show (status: completed) or (status: killed)

Evidence from Current Session

In the current session, 45+ background bash jobs were created for workflow monitoring purposes. Despite these jobs having completed hours ago, the system continues generating reminders for all 45+ jobs at every tool invocation.

Example demonstrating the discrepancy:

Background Job ID: 77c6c3

• BashOutput result: <status>killed</status> ✓ (Correct)
• System reminder: (status: running) ✗ (Incorrect)

Impact

Severity: Medium-High

This issue causes:

1. Token waste: Each reminder consumes tokens, with 45+ reminders appearing repeatedly throughout sessions
2. Context pollution: Outdated information clutters the AI's working context
3. User confusion: Users observe 'zombie processes' that appear unkillable
4. Session degradation: Long sessions become increasingly burdened with stale reminders
5. Inability to clean up: No available tool or method can clear these outdated reminders

Reproduction Steps

1. Use the Bash tool with run_in_background: true to create multiple background jobs with long-running loops
2. Allow jobs to execute for several minutes
3. Terminate jobs using KillShell tool or allow them to complete naturally
4. Observe using BashOutput that jobs report <status>completed</status> or <status>killed</status>
5. Note that system reminders continue reporting (status: running) for the same job IDs

Proposed Solutions

Option 1 (Preferred):

• Update system reminder generator to query actual job status before generating reminders
• Only generate reminders for jobs with status: running or pending
• Suppress reminders for jobs with status: completed, killed, or failed

Option 2:

• Implement time-based cleanup: Stop generating reminders for jobs older than X minutes/hours
• Assume jobs that haven't been queried recently are no longer relevant

Option 3:

• Provide a tool or command to manually clear completed background job reminders
• Allow the AI to request reminder cleanup when appropriate

Environment

• Model: Claude Sonnet 4.5 (claude-sonnet-4-5-20250929)
• Platform: Claude Code (VSCode Extension)
• Session Duration: ~4+ hours
• Background Jobs Created: 45+
• All jobs monitoring GitHub Actions workflows

Additional Notes

• The AI has no direct control over system reminder generation
• Standard OS-level tools (sudo, kill, pkill) cannot address this issue as these are not OS processes
• The KillShell tool successfully terminates jobs but does not update the reminder system's internal state

Thank you for investigating this issue.