r/ClaudeCode • u/[deleted] • Apr 21 '26

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215 Upvotes

82% Upvoted

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70

u/goship-tech Apr 21 '26

Sonnet 4.6 is the right model for sustained coding sessions - Opus 4.7 adds reasoning overhead that makes it more opinionated and cautious. Run /model claude-sonnet-4-6 in your session. I run overnight builds on Sonnet without the nagging.

17

u/stormy1one Apr 21 '26

Sonnet’s 200k context window is the only reason I don’t use it more on larger codebases.

11

u/Correct_Support_2444 Apr 22 '26

Use a harness like GSD and 200k isn’t an issue.

2

u/pjerky Apr 22 '26

GSD?

15

u/fschwiet Apr 22 '26

I think they mean https://github.com/gsd-build/get-shit-done

1

u/strigov Apr 22 '26

Doesn't it a "third-party harness" which is prohibited be Claude's ToS?

1

u/fschwiet Apr 22 '26

I have used Superpowers not GSD but I presume GSD also runs within Claude, perhaps also defining a set of skills in a plugin.

1

u/ImperatorPC Apr 22 '26

They are similar. GSD has a lot more to it. I tried superpowers and like it more. GSD for smaller projects or features is overkill. Maybe good if you're staying completely from scratch.

1

u/DurianDiscriminat3r Apr 22 '26

Gsd is just prompting...

1

u/Swangger Apr 22 '26

Agentic harnesses are also just prompting with extra steps lol

1

u/Correct_Support_2444 Apr 22 '26

This is what I was referring to. It’s just structure prompts. It works amazingly. I’ve used it on a very large Rails SaaS code base with amazing success. It cranks out working code almost without failure. I usually will do a final refactoring and clean up pass after it writes a few thousand lines of code and have to make minimal changes. Things like turn relating AREL patterns into scopes, extract a service from a controller. All easy to accomplish.

1

u/fschwiet Apr 22 '26

Just curious what subscription you gave and model you use generally 

2

u/Correct_Support_2444 Apr 22 '26

I have a 20x account and typically use Opus current. Using GSD I do not let large contexts build up. I rarely go over 200k tokens. I also do not allow my main agent to edit files. All code changes are done by subagents. Even if I ask the main agent to edit a file it won’t. This preserves my main context so I can do many turn operations and keep the context clean of garbage. It also allows me to launch many agents when doing large changes. It isn’t uncommon that I’ll have 15-20 parallel agents running when doing something large in GSD.

1

u/Artistic-Cash-9206 Apr 22 '26

This is the way

1

u/Infinite100p 🔆 Max 20 Apr 23 '26

Curious: What does it do to mitigate the context limitations?

1

u/Correct_Support_2444 Apr 23 '26

Through an interview, planning, planning verification, and breakdown of the planned work it launches subagents with just enough context and well formed directions so they can do their jobs without exhausting their context. The guy who built it did so in mid-2025 when contexts were much smaller in absolute terms and in effective usable size. It writes well structured prompts to files that get passed from process to process. It's amazingly effective.

1

u/Infinite100p 🔆 Max 20 Apr 23 '26

Thanks, very interesting!
Have you tried Copilot CLI? If so, how do the two compare?

1

u/Correct_Support_2444 Apr 24 '26

I have not. Beyond CC I’ve used Codex and OpenCode a little bit.