3 slimmer AGENTS.md plans side by side

Read these two docs, then read my AGENTS.md (and CLAUDE.md, if the project has one) and the files it imports, and give me three ways to restructure them:
1. Delete instructions that do nothing: things Opus already does, and things it can tell from the code. Merge duplicates, and list any contradictions so I can choose.
2. Keep only the rules needed every time in the root AGENTS.md, under 200 lines. Move rules that only matter for one folder into that folder's own AGENTS.md, and other details into separate files. For both, say in the main file where they are and when to read them. Don't use @ imports for detail files, and keep the line in CLAUDE.md that imports AGENTS.md.
Have three subagents each write one version, each more aggressive than the last. This step is proposals only, so don't change any files. For each version, list what was deleted, where things moved, and the main file's line count and size in KiB before and after. Don't lose a single useful rule. Show me the three versions side by side first, I'll pick one, and then open a PR.

Claude Code’s docs say to keep each AGENTS.md under 200 lines, since the longer it gets, the less Claude follows it. Codex reads 32 KiB at most by default and skips anything past that.

Every time you start a session, Codex and Claude Code read your AGENTS.md into context, and it comes along on every turn after that. After slimming, only the main file gets read every time, and the rest only when the agent gets to that folder or needs it.

What the official docs add:

• Codex reads them once, when the session starts: the global one, plus every one from the project root down to the folder you launched in. It won’t automatically reread them when you move to another folder.
• Claude Code loads a subfolder’s AGENTS.md only when it reads a file in that folder. So rules that only matter for one folder belong in that folder’s own AGENTS.md.
• In Claude Code, @ imports only make the file look tidier. Imported files still load in full at launch, so they save zero tokens.
• In Claude Code, every installed skill’s name and description takes up context on every turn. Run /skill-doctor to see what each one costs and how often it gets used.
• In Claude Code, run /doctor prompt-audit (v2.1.283 or later). It finds instructions written for older models, references to files that don’t exist, and files that contradict each other, and changes nothing until you say yes.

Send this prompt to Opus 5.5 with the two docs: Claude Code memory and Codex AGENTS.md.