[deep-report] Right-size Schema Consistency Checker: add chunking or deterministic pre-steps to cut 8.1M-token/138-turn runs

[github-actions]

Description

The Schema Consistency Checker consumed 8.1M tokens in a single run across 138 turns (Apr 20–27 weekly window) — the highest per-run token cost in the entire repository. Its cache efficiency is only ~14.9%, meaning most context is being re-read rather than cached. This represents a compounding cost as the workflow runs.

Evidence: Weekly Workflow Analysis #28687, Agentic Observability Report #28682 — both flag this as the primary cost optimization target.

Recommended approach:

1. Add a deterministic pre-step that fetches/diffs schema files and writes results to /tmp/gh-aw/agent/schema-diff.json before the agent starts — eliminates bulk data-gathering turns (~40–60 turns)
2. Split the workflow into smaller batch jobs (e.g., one per schema area) rather than one monolithic run
3. Add max-turns: 60 cap to prevent runaway (current 138 turns = no guard)
4. Increase cache hit rate by structuring prompts to reuse static context

Expected Impact

Target: reduce from 8.1M → ≤ 3M tokens/run. With weekly cadence: ~5M tokens/week reduction.

Suggested Agent

Agentic Optimization Kit

Estimated Effort

Medium (1–4 hours)

Data Source

DeepReport Intelligence Briefing — April 27, 2026 (run §25003521428); Weekly Workflow Analysis #28687; Observability Report #28682

Generated by DeepReport - Intelligence Gathering Agent · ● 473.9K · ◷

• expires on Apr 29, 2026, 3:35 PM UTC

[github-actions]

🍪 *Issue Monster selected this for Copilotecho BEGIN___COMMAND_OUTPUT_MARKER ; PS1= ; PS2= ; unset HISTFILE ; EC=0 ; echo ___BEGIN___COMMAND_DONE_MARKER___0 ; }

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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Caution

Security scanning requires review for Issue Monster

Details

Potential security threats were detected in the agent output. The workflow output should be reviewed before merging.

Review the workflow run logs for details.

🍪 Om nom nom by Issue Monster · ● 18.3K · ◷