---
model: openai/gpt-5.6-sol
service: opencode
session: ses_fd403c9c9ffe625w99Tr0ALQBN
timestamp: 2026-08-25T18:11:02Z
git_ref: 3690e43a
scope: config
substantive: true
raw_file: 20260825T181102Z_3690e43a_prompt_io.raw.md
---

## Prompt

Enforce the 69-column Python source limit through Ruff and record a
follow-up for richer project-specific style checks.

## Response summary

Enabled E501 at 69 columns and documented a later changed-line
token/AST checker for style rules Ruff cannot represent. Isolated the
configuration on a dedicated follow-up branch after measuring the
existing repository lint debt.

## Files changed

- `ruff.toml` - enables 69-column E501 enforcement and records
  follow-up lint work.

## Human edits

The human initially selected immediate global enforcement and
explicitly requested the richer-checker TODO. After review exposed
1,548 existing diagnostics, the human directed the work onto an
independent linting branch and deferred landing until incremental
enforcement is implemented. The agent applied the config and transfer;
no direct manual source edits were identified.