Stop Copying Linux Logs Into AI—Let the Agent Investigate on the Failing Machine

Description and use

By leveraging KeySync remote access and the on‑host AI tool DeepSeek Harness, the team quickly identified the disk‑full issue, safely removed duplicate files, and restored free space, enabling the release to complete.

Problem

A production release was blocked by a nearly full disk; manual log copying to AI was slow and risky.

Outcome

Using an on‑host AI agent (DSH) avoided multiple SSH sessions, preserved investigative context, and enabled safe, targeted cleanup, freeing 15.4 GiB and allowing the release to proceed.

Workflow

• Open KeySync device list and select server
• Click Remote Open to launch DeepSeek Harness (DSH) on host
• In DSH issue read‑only investigation command
• DSH runs df, du, docker inspection, and script analysis
• DSH identifies large upload‑staging directories and retention rule bug
• DSH recommends deleting verified duplicate directories
• Human approves deletion scope
• DSH executes cleanup
• Human verifies space recovery and CI success
• DSH continues investigation to find root cause and future prevention

Evidence

Perform a read‑only investigation only. Do not delete anything, restart services, or modify configuration.

Source

Delete only the three verified duplicate upload directories. Expected recovery: approximately 15.4 GiB.

Source