Write Agent Guidance

Build one evidence-backed instruction chain. Treat AGENTS.md as the canonical cross-agent source and CLAUDE.md as a thin Claude Code adapter. Optimize for instruction adherence, not documentation completeness.

Read the authoring rubric before evaluating or changing guidance. It contains the current provider semantics, placement rules, bridge patterns, and acceptance checks. For the wording of each line (pointers, completion criteria, negation, pruning), apply the writing-for-agents skill; this skill owns scope, placement, provider semantics, and bridges.

1. Fix the scope

Classify the request as:

• Author or migrate: inspect, write the requested files, and validate them.
• Audit or explain: inspect and report; leave files unchanged.