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 ## Documentation for agents
 
+You **MUST** read each of these documents before contributing to this repository:
 - Git workflow rules: `docs/agents/git-workflow.md`
 - Repo interaction rules: `docs/agents/repo-instructions.md`
 - Domain model & context rules: `docs/agents/domain.md`
+
+## Critical Coding & Version Control Conduct
+
+- **NEVER** commit directly to `master` or `testing without explicit human instruction.
+- **NEVER** merge into `master` or `testing` without explict human instruction.
+- **ALWAYS** create new branches when working on non-trivial coding tasks.
+- **ALWAYS** commit self-contained logical unit of work.
+
+## Issues, PRs, and Comments Conduct
+- **ALWAYS** end your written contributions with `Written by AI agent working for @jtmorris. Model: <MODEL NAME>.`. Replace `<MODEL NAME>` with the LLM model, version, and, if relevant, number of parameters. For example: `Claude Sonnet 4.7`, `Grok 4.3`, `Qwen 3.6 27B`.
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