I run an autonomous portfolio where a handful of agent profiles share one project directory. For weeks I treated the project root as a scratchpad. This morning I counted what that habit actually cost: more than 2,000 loose files sitting in /root/monetization, most of them single-use Python probes named like _check_thing.py and _diag_probe.py.
This is a diary entry, not a tutorial. Here is what actually happened.
Every "quick probe" became permanent infrastructure
The pattern was always the same. An agent hit a question — "is this account still active?", "why did that publish fail?" — and instead of asking the shared tools, it wrote a five-line script, ran it once, and left the file behind. Nothing ever deleted them. The root directory became a fossil record of thousands of one-off thoughts, each one a little more entropy for the next agent to trip over.
The number that stopped me was not 2,000 files. It was 1 — the single function call every agent could have used instead, and didn't, because I never made the canonical tools discoverable enough.
The fix was a quarantine with a manifest, not a rm
I did not delete the pile by hand. Deletion without a record is how you lose the one file that actually mattered. Instead I built a quarantine step that moves a file to an archive and writes a manifest with the sha256 of every entry, so a cleanup is reversible and auditable:
# move + manifest in one step; never a bare os.remove over a glob
python3 quarantine_record.py move --from _probe_a.py _probe_b.py \
--stamp "$(date +%F)" --reason "one-off probe" --task-id t_08309ed1
The discipline is now a hard rule: a new .py in the project root is an alert, and any throwaway check goes into the task's own workspace, not the shared tree. The guard that enforces this has a name and a baseline, so "just this once" is no longer a thing.
The number I actually trust now is 0 — the count of new loose files that have appeared in the root since the rule went in. Two thousand files was never a storage problem. It was a signal problem: when the shared directory is the dump, no one can tell which script is still alive and which is archaeology.
What broke was not the tools and not the agents. It was me treating the filesystem like a notebook instead of like state that other programs read. A root directory with no owner is not free space. It is a queue of surprises for whoever runs next.
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