[{"data":1,"prerenderedAt":45},["ShallowReactive",2],{"$fvP_zZ0TXtbmP08zZGVO7WEHzR6utdQmG5slDVhv3l5Q":3},{"date":4,"generated_at":5,"picks":6,"candidates_scanned":43,"candidates_scored":44},"2026-04-08","2026-04-08T06:00:00.000000+00:00",[7,21,33],{"rank":8,"title":9,"source":10,"url":11,"category":12,"tldr":13,"score":14,"scores":15,"why":20},1,"claude-mythos-preview appears simultaneously in all Anthropic SDKs","GitHub anthropics/anthropic-sdk-python","https://github.com/anthropics/anthropic-sdk-python/releases/tag/v0.90.0","Release","- All five major Anthropic SDKs (Python, TypeScript, Go, Java, C#) shipped a new release on the same day, and they all have exactly one thing in common: `claude-mythos-preview` is now a supported model ID\n- You can start passing `model=\"claude-mythos-preview\"` in your API calls right now — the SDK handles it, though actual access depends on Anthropic granting your account\n- This is the standard pattern Anthropic uses just before a model becomes broadly available: SDK support lands first, public announcement follows\n- The synchronized multi-language rollout suggests this isn't a leak — it's a coordinated release prep\n- Related context: a Thomas Friedman NYT piece and Anthropic's \"Glasswing\" page are already circulating with details about Mythos' capabilities, including finding vulnerabilities in major software systems",85,{"direct_claude_relevance":16,"practical_utility":17,"novelty":18,"source_credibility":19},33,20,18,14,"When every Anthropic SDK drops a new model ID on the same day — Python v0.90.0, TypeScript v0.84.0, Go v1.31.0, Java v2.21.0, C# v12.12.0 — that's not coincidence, it's a release train. claude-mythos-preview is now a real, valid model string across the entire Anthropic SDK surface. Developers who want early access should be watching their inboxes. The simultaneous nature of the rollout is the signal: this is imminent.",{"rank":22,"title":23,"source":24,"url":25,"category":12,"tldr":26,"score":27,"scores":28,"why":32},2,"Claude Code v2.1.94 — effort defaults back to high for API users, 20+ fixes","Claude Code Releases","https://github.com/anthropics/claude-code/releases/tag/v2.1.94","- Default effort level is now `high` again for API-key, Bedrock/Vertex/Foundry, Team, and Enterprise users — it was silently changed to `medium` a while back, this reverses that; control it with `/effort`\n- Bedrock Mantle is now supported via `CLAUDE_CODE_USE_MANTLE=1`\n- Fixed: agents stuck silently after 429 rate-limit (error now surfaces immediately)\n- Fixed: Console login on macOS silently failing with \"Not logged in\" when keychain is locked — `claude doctor` now diagnoses it\n- Fixed: CJK and multibyte text corruption when chunk boundaries split a UTF-8 sequence in stream-json mode\n- `--resume` now works across worktrees of the same repo directly, no more `cd` command required",79,{"direct_claude_relevance":29,"practical_utility":30,"novelty":31,"source_credibility":19},29,24,12,"The effort-level change is the headline here: API-key and enterprise users were quietly running at medium effort and may not have noticed. Flipping back to high as the default is a meaningful quality change for anyone who hasn't set `/effort` explicitly. The silent 429 fix and macOS keychain fix are the kind of paper-cut issues that burned real hours; the multibyte text fix matters for any CJK-language codebase. This is a genuinely substantial release hidden behind an incremental version number.",{"rank":34,"title":35,"source":10,"url":36,"category":12,"tldr":37,"score":38,"scores":39,"why":42},3,"Amazon Bedrock Mantle client lands across all Anthropic SDKs","https://github.com/anthropics/anthropic-sdk-python/releases/tag/v0.91.0","- A new `AnthropicBedrockMantle` client is now available in Python (v0.91.0), TypeScript (v0.85.0), Go (v1.32.0), and C# Bedrock (v0.2.0) — also in Claude Code itself via `CLAUDE_CODE_USE_MANTLE=1`\n- Mantle is Amazon's unified inference layer for Bedrock — this client lets you talk to Claude through Mantle's routing without managing region-specific endpoint strings manually",58,{"direct_claude_relevance":18,"practical_utility":40,"novelty":41,"source_credibility":19},16,10,"Bedrock Mantle is a new AWS inference routing layer, and Anthropic shipped native client support across Python, TypeScript, Go, and C# SDKs in a single coordinated release. For enterprise teams running Claude on AWS infrastructure, this removes manual endpoint configuration and unlocks Mantle's cross-region routing. Niche but immediately useful if you're in the AWS/enterprise Claude camp.",50,21,1776402243078]