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Guardex already warned about fragmented loops, but it still underspecified how to collapse raw terminal chatter into compact state. This tightens the repo contract, managed template, and gx prompt task loop so operators checkpoint after milestones, keep only the latest checkpoint summaries in active context, and treat execution logs as separate from reasoning context. Constraint: Guardex does not control Codex internal prompt assembly, so the fix had to land in repo guidance and prompt surfaces rather than the launcher. Rejected: Patch templates/scripts/codex-agent.sh invocation | launcher only starts Codex and already records compact session metadata. Confidence: medium Scope-risk: narrow Directive: Keep future token-efficiency guidance anchored on checkpoint summaries and summarized tool outcomes instead of longer anti-loop prose. Tested: node --test test/prompt.test.js; openspec validate agent-codex-reduce-prompt-replay-checkpoint-guidance-2026-04-23-15-43 --type change --strict Not-tested: openspec validate --specs (repo reported no items found to validate)
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The original implementation lane merged cleanly, but its tasks.md cleanup section still showed the finish steps as incomplete. This backfills the PR URL, merge timestamp, and worktree-prune proof so the merged OpenSpec record matches what actually happened. Constraint: The evidence patch had to land after PR #375 merged because the exact mergedAt timestamp and cleanup result were only known at finish time. Rejected: Leave the stale cleanup boxes on main | cleanup evidence is part of the repo workflow contract and would misstate merged truth. Confidence: high Scope-risk: narrow Directive: When a finish flow merges a change before tasks.md records PR and MERGED proof, follow with a tiny bookkeeping lane instead of leaving stale cleanup boxes behind. Tested: git status --short; git diff --stat; gh pr view agent/codex/reduce-prompt-replay-checkpoint-guidance-2026-04-23-15-43 --json url,state,number,headRefName,baseRefName,mergedAt; git worktree list Not-tested: automated test suite (docs-only bookkeeping patch) Co-authored-by: NagyVikt <nagy.viktordp@gmail.com>
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Automated by gx branch finish (PR flow).