“Boris Cherny built custom token-counting for Bedrock, Vertex, and Azure (which lack a native API) while using Anthropic’s built-in token-counting endpoint directly.”

#4 𝕏 Boris Cherny built custom token-counting for Bedrock, Vertex, and Azure (which lack a native API) while using Anthropic’s built-in token-counting endpoint directly.

“#4 𝕏 Boris Cherny explains that a surge in Claude usage from third-party tools has outstripped the design of existing subscriptions, so capacity is being managed carefully and prioritized for product and API customers.”

GenAI PM Daily April 04, 2026 GenAI PM Daily 🎧 Listen to this brief 3 min listen Today's top 17 insights for PM Builders, ranked by relevance from X, Blogs, and LinkedIn. Claude subscriptions will no longer cover usage on third-party tools like OpenClaw. #4 𝕏 Boris Cherny explains that a surge in Claude usage from third-party tools has outstripped the design of existing subscriptions, so capacity is being managed carefully and prioritized for product and API customers. #6 𝕏 Boris Cherny argues that subscription plans are optimized for specific usage patterns rather than raw token counts. He notes that building at scale involves trade-offs that prioritize certain use cases over others.

“#23 𝕏 Boris Cherny says Claude Code Review automatically catches over 99% of bugs, leaving engineers to only perform a quick sanity check.”

#23 𝕏 Boris Cherny says Claude Code Review automatically catches over 99% of bugs, leaving engineers to only perform a quick sanity check. #24 𝕏 Anthropic introduced Claude Code auto mode, a safer middle ground that uses trained classifiers to automatically approve or reject code-generation requests instead of relying on manual permission prompts.

“#3 𝕏 Boris Cherny unshipped their RAG setup due to privacy, security, reliability, and index-staleness issues, finding agentic search delivered better results with fewer trade-offs.”

Several operational and product insights discuss search, agent skills, and agentic workflows. #3 𝕏 Boris Cherny unshipped their RAG setup due to privacy, security, reliability, and index-staleness issues, finding agentic search delivered better results with fewer trade-offs.

“#10 𝕏 Boris Cherny explains that “Ultrathink” in Claude delivers maximum effort for a single turn, while “/effort max” (or `claude --effort=max`) sustains peak effort for the entire conversation.”

Today's top 12 insights for PM Builders, ranked by relevance from X, LinkedIn, and Blogs. Ramp Ships 500+ Features Using Claude Code #10 𝕏 Boris Cherny explains that “Ultrathink” in Claude delivers maximum effort for a single turn, while “/effort max” (or `claude --effort=max`) sustains peak effort for the entire conversation.

“#7 𝕏 Boris Cherny launched Claude Code’s new Code Review feature, where AI agents deep-review every PR, boosting Anthropic engineers’ code output by 200% this year and catching bugs he’d otherwise miss.”

Boris Cherny appears in a newsletter item about PR review automation and engineering productivity. He is positioned as a voice explaining the benefits of AI agents in code review.

“𝕏 Boris Cherny reframes “effort” as a max budget for AI models and recommends Medium as the default—offering the best balance between Low (fast but less capable) and High (very smart but slow and token-heavy).”

𝕏 Boris Cherny reframes “effort” as a max budget for AI models and recommends Medium as the default—offering the best balance between Low (fast but less capable) and High (very smart but slow and token-heavy).

“#16 𝕏 Boris Cherny shares that running `/setup-terminal` in Apple Terminal enables native paste support—see code.claude.com/docs/en/terminal-config for setup details.”

#16 𝕏 Boris Cherny shares that running `/setup-terminal` in Apple Terminal enables native paste support—see code.claude.com/docs/en/terminal-config for setup details. #17 𝕏 Santiago warns that Cowork’s multi-step file workflow—granting folder access, copying files, then generating a plan—slows you down when dealing with many or changing files, and suggests native chat-based file support for a smoother experience.

“Boris Cherny highlights that they’ve been building Claude Code’s OSS infrastructure for a while, with core components like Bun and the Agent sandbox already open-source, and discusses the trade-offs around standards and openness.”

#15 𝕏 Boris Cherny highlights that they’ve been building Claude Code’s OSS infrastructure for a while, with core components like Bun and the Agent sandbox already open-source, and discusses the trade-offs around standards and openness.

“Boris Cherny uses subagents with Git worktrees to parallelize large codebase migrations by assigning each agent a few folders, greatly speeding up the process while a main agent resolves any merge conflicts.”

#2 𝕏 Boris Cherny uses subagents with Git worktrees to parallelize large codebase migrations by assigning each agent a few folders, greatly speeding up the process while a main agent resolves any merge conflicts. #9 𝕏 Boris Cherny says Opus 4.6 and Sonnet 4.6 deliver more intelligent outputs at the cost of higher token usage, and you can use `/model` to set effort to low or medium for lighter, more economical runs.