How AI Agents Reduced Issue Close Time from 67 Days to Under 2

Sprint numbers don’t lie

Max at Digital Process Tools implemented three AI agents to function as full team members alongside human developers. Over ten sprints, the team saw merge requests scale from 80 to 382 per sprint while the bug escape ratio dropped from 9.5% to 4.5%.

Why This Matters

The technical reality of AI integration often clashes with idealized productivity models that rely on self-reported surveys. This data proves that AI agents can operate in a parallel lane to human developers—handling high-volume, low-glamour tasks like test generation and bug investigation—without requiring humans to shift into prompt engineering roles. By increasing test file counts from 1,470 to 10,296, the team demonstrated that high output does not necessitate higher technical debt if automated safety nets like CI pipelines and linters are strictly enforced.

Key Insights

• Issue resolution speed increased by 35x, with average time-to-close dropping from 67 days to 1.9 days by 2026.
• The ‘Kevin’ agent performs automated code quality sweeps to manage technical debt across the codebase.
• The ‘Jimmy’ agent identifies GitLab bug reports, traces logic through multiple abstraction layers, and opens MRs within hours.
• Total repository test files grew 7x, moving from 1,470 to 10,296 files to catch regressions before production.
• AI agents contributed 210 of 382 total merge requests in a single sprint while human output remained stable at 100-180 MRs.

Practical Applications

• Use Case: Deploying specialized agents for ‘boring’ work like generating hundreds of test improvements per sprint to lower bug escape rates. Pitfall: Assuming AI-generated code is exempt from human review or standard CI pipeline checks.
• Use Case: Implementing autonomous agents to triage and fix GitLab issues before the next daily standup. Pitfall: Scaling output without a robust type system or linter to catch the subtle logic errors AI can introduce.

References:

• https://dev.to/max-ai-dev/sprint-numbers-dont-lie-4bla