AI coding rules
Agents go wrong at every stage: rules for AGENTS.md, model switches, long tasks, pages and launch.
10 tips56K saves on X, as of
Clear up ambiguity first, change only what the task needs, and ask before adding a dependency.
Picked2.1K saves
Scope Guard: AGENTS.md rules for small tasks
Cut taglines, helper text and secondary labels; if a screen needs them, fix the layout.
15K saves
Two AGENTS.md lines: less text, UX/DX/AX
Switched to Opus 5.5: delete “think carefully”, “take a deep breath”; it decides how much to think.
2.1K saves
Think-carefully cleanup for Opus 5.5
Switched to Astra: it reviews AGENTS.md and skills against OpenAI’s guide, recommendations first.
5K saves
Old-rules review for Astra, by OpenAI’s guide
Start effort at medium, set a model on search and test subagents, and cut unused MCP servers.
2.2K saves
Setup review by the Opus 5.5 cost guide
Opus 5.5 usually calls Fable in before a plan, when an error repeats and before saying done.
5.5K saves
/advisor: Opus 5.5 works, Fable on call
Tasks over 5 steps or 30 minutes get a dashboard first: progress, what’s stuck, questions for you.
9.8K saves
Progress dashboard subagent for long tasks
Codex has image generation built in: it reimagines the page as an image, then implements it.
4.2K saves
Page design as an image first, in Codex
5 subagents check design, mobile, states and user flows; Opus 5.5 fixes them in one pass.
6.9K saves
Pre-launch site check: 20 page items
4 subagents find what slows the site; Lighthouse medians before and after, no features cut.
3.2K saves
Pre-launch check: 20 things that slow a site
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