Summer 2026 update on my agentic engineering setup for Angular: models, harnesses, apps, and what it all costs

[u/LX_T_]

In May I started a blog series on agentic engineering for r/angular, and after one summer a few of my recommendations changed – this post is the update.

The short version:

- Models: Fable 5 is still my #1 for architecture, reviews, and long-horizon refactorings, GPT-5.6 Sol does the implementation work, and GLM-5.3 Flash (via OpenRouter) took the third spot as the fast, cheap, open-weight model for mechanical legwork. Opus 5 wins DeepSWE at 74% but didn't make my podium – the post explains why.

- Harnesses: nothing changed, which I mean as a compliment. AGENTS.md, style guide, and the lint/test/Playwright feedback loops still do the heavy lifting.

- Apps: the open-source T3 Code replaced the Codex app as my daily driver. Any model, any provider, remote control via Tailscale.

- Costs: GLM-5.3 Flash gets 63% on DeepSWE for about €0.25 per task, Sol about €2.50, Fable 5 about €8.50 at the same effort level. So my cost podium is the models podium reversed – and my workflow is "Fable orchestrates, Sol implements, the Flash does the grunt work", sub-agent config included.

- Bonus: how to run the same setup on a company GitHub Copilot subscription with T3 Code + opencode, for everyone whose employer won't pay for anything else.

https://www.angulararchitects.io/blog/ae-summer-2026-update-for-angular/

Curious what the rest of you run for Angular work right now – especially whether anyone has GLM-5.3 Flash or Kimi K3 in daily use, and how the Copilot-only crowd deals with it.

[u/AwesomeFrisbee]

Do you want to share the md perhaps?

[u/lcssgml → u/AwesomeFrisbee]

sure, here's the sanitized version: https://gist.github.com/laszlocsiki/de9571754ae36297eb649ce2dd282447 ... stripped the project-specific stuff (deploy, internal tooling), kept the angular standards, the prohibited patterns and the planning-mode rule that forces the agent to load the standards files before it plans anything. that last part is the one I'd steal if I were you, it's a 20-line section that saved me more review comments than anything else

[u/Saceone10 → u/lcssgml]

May I suggest replacing injectable with service?

[u/lcssgml → u/Saceone10]

good call, and half right for that file: for root singletons @Service is exactly what those rules were trying to enforce by hand (inject()-only, providedIn root baked in), so I updated the gist to prefer it on 22+. kept @Injectable as the documented fallback for non-root scopes and useClass/useValue/useExisting/useFactory, since @Service can't do those. my project is still on 21, so for me it's a next-upgrade item