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3 posts
ai

15 Walls for Building Your Own Auto-Dev Agent: Concrete Lessons from Stripe Minions

Stripe Minions says 'The walls matter more than the model,' but the case studies from four Silicon Valley companies never explained how to actually build those walls. This post breaks down the 15 walls we implemented in the daodao auto-dev agent: what each wall prevents, where the files live, and what the tradeoffs are. Tier 1 is mandatory, Tier 2 strengthens governance, Tier 3 is serious governance.

ai guide

RAG Cost Optimization: Minimizing the Cost of Every Query

RAG system costs come from LLM tokens, Embedding APIs, and vector search. Every stage has room for cost reduction, but you need to verify that optimizations don't sacrifice too much quality.

ai guide

RAG Quota System: Controlling LLM Costs with Dual Limits

Limiting request count alone is not enough — a single long query can consume ten times the tokens of a normal one. Dual quotas (request count + token count) are what truly control costs.