[deep-report] [quick-win] Downgrade read-only maintenance workflows off frontier models

[github-actions]

Description

The PR Description Updater is a read-only, repo-maintenance workflow (permissions: contents/pull-requests/issues: read, no write-capable safe outputs) yet runs on a frontier model. The Weekly Workflow Analysis flagged it as not needing a frontier model — claude-haiku-4-5 / gpt-4.1-mini would cut per-run cost with no quality loss for diff-summarization work. The same audit shows 3 skills reviewers + updaters dominate action-minutes.

Fix

Set a cheaper model in the frontmatter of read-only maintenance workflows (start with PR Description Updater), then sweep other read-only repo-maintenance / moderate-profile audit workflows for the same downgrade.

Expected Impact

Lower per-run AI cost across the highest-frequency read-only workflows with no functional change.

Suggested Agent

Agentic Token Optimizer / Copilot SWE Agent.

Estimated Effort

Medium (1-4 hours)

Data Source

DeepReport 2026-06-29; Weekly Workflow Analysis #42229.

Generated by 🔬 DeepReport - Intelligence Gathering Agent · 212.1 AIC · ⌖ 11.9 AIC · ⊞ 9.8K · ◷

• expires on Jul 1, 2026, 8:05 AM UTC-08:00

[github-actions]

🍪 Issue Monster selected this for Copilot

I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.

If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.

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🍪 Om nom nom by Issue Monster · 3.27 AIC · ⌖ 21 AIC · ⊞ 6.3K · ◷

[github-actions]

🍪 Issue Monster selected this for Copilot

I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.

If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.

Om nom nom! 🍪

🍪 Om nom nom by Issue Monster · 1.98 AIC · ⌖ 15.1 AIC · ⊞ 3.6K · ◷