Prune old task_runs from mc.db

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OVERRIDES runtime profile: uses direct_python (plain Python, no model) because the command chain never invokes the claude CLI or any LLM API — pure-infra task; scheduler provider env injection is a no-op (MC-4942 U12 sweep).

Nightly pruning of task_runs in mc.db. Keeps only the last 7 days. Prevents unbounded growth of the operational log (MC-3073).

Schedule Daily at 04:000 4 * * *

EnabledYes

Run Asshell

Timeout60s

RetryNo

Next Runin 22h (2026-06-14 04:00)

Task Definition

tasks/mc-prune-task-runs.md

Run Asshell

Commandset

Tool-lessNo

BackgroundNo

Runtime profile

Notify destination

python3 /home/lucienne/workspace/PKA/scripts/prune_task_runs.py

Edit Schedule

Frequency

Result:

Runs (7d)

Completed

Failed

Timeout

100%

Success (7d)

Avg Duration

infrastructure mission-control cleanup

Run History (8)

Started	Finished	Status	Duration	Output	Log
2h ago	2h ago	completed	3s	Vacuuming database... Pruned task_runs: 36932 -> 31056 (deleted 5876)	View log
1d ago	1d ago	completed	4s	Vacuuming database... Pruned task_runs: 38087 -> 32766 (deleted 5321)	View log
2d ago	2d ago	completed	3s	Vacuuming database... Pruned task_runs: 39451 -> 33732 (deleted 5719)	View log
3d ago	3d ago	completed	4s	Vacuuming database... Pruned task_runs: 41129 -> 35174 (deleted 5955)	View log
4d ago	4d ago	completed	4s	Vacuuming database... Pruned task_runs: 43612 -> 36893 (deleted 6719)	View log
5d ago	5d ago	completed	4s	Vacuuming database... Pruned task_runs: 45914 -> 39519 (deleted 6395)	View log
6d ago	6d ago	completed	3s	Vacuuming database... Pruned task_runs: 47549 -> 41494 (deleted 6055)	View log
7d ago	7d ago	completed	4s	Vacuuming database... Pruned task_runs: 51622 -> 42829 (deleted 8793)	View log

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