Need a "do it right" mode -- fast/patchy default wastes real users' time

The Problem

Claude Code defaults to fast and patchy. It takes shortcuts, hardcodes things that should be generic, patches over problems instead of fixing them properly, and optimizes for completing tasks quickly rather than completing them correctly.

For users building real, long-term projects, this means spending days or weeks debugging code that Claude built incorrectly because it defaulted to the fastest approach instead of the thorough one. The time and money wasted fixing this is real.

My Experience

I'm building a multi-genre book production pipeline. Claude Code built the entire pipeline around one specific book (a cozy mystery), hardcoding character names, mystery-specific cliffhanger examples, genre-specific defaults, and book-specific sensory details into what was supposed to be a generic, multi-genre tool. None of this crashed -- it all ran fine -- so multiple "line-by-line code reviews" by Claude never caught it. It only checked for "does it work" not "is it right."

I spent a week and a half debugging output problems that turned out to be caused by mystery-genre content baked into literary fiction prompts. Every pipeline run was biased from the start. That's wasted API credits and wasted hours of my life.

I have put instructions in CLAUDE.md, in startup skills, in session notes, in memory files, in feedback memories -- everywhere I can think of -- telling Claude to be thorough, to do it correctly and completely the first time, not to take shortcuts. It reads them all and then takes shortcuts anyway the moment it starts working.

What I Want

A mode or setting where Claude prioritizes correctness and completeness over speed. Something I can turn on that says: "This is a real project. Do not patch. Do not take shortcuts. Do not hardcode. Think about the whole system before writing a line of code. Review your own work as if someone's livelihood depends on it, because it does."

Right now it feels like Claude Code is built to impress YouTubers and influencers with speed demos, not to serve people who are actually building things and need them done right the first time. Fast is worthless if I spend 10x longer fixing what fast produced.

Suggestion

• A "thorough mode" or "production mode" that changes the default behavior from fast/minimal to complete/correct
• When in this mode: no patches, no hardcoding, always consider the full system context, review own work for architectural correctness not just functional correctness
• This should be a persistent setting, not something I have to remind Claude about every single conversation
• The current instructions system (CLAUDE.md, memory, etc.) is not sufficient -- Claude reads them and ignores them in practice. This needs to be a behavioral change at the model level, not just more written reminders that get overridden by the fast default.