Hottest Repos
DeusData/codebase-memory-mcp — 718 stars today (5k total). New to digest. Highest relative momentum today. Pure C MCP server that indexes codebases into persistent knowledge graphs. Indexes the Linux kernel (28M lines) in 3 minutes. 158 languages via tree-sitter. Claims 99% token reduction vs file-by-file exploration. Single static binary, zero deps, auto-configures for 11 coding agents. MIT. This is the kind of infra that makes agents actually useful on large codebases.
Panniantong/Agent-Reach — 1,154 stars today (33k total). Eighth day tracking, crossed 33k. After yesterday's 2.1k spike it's settled at 1.1k/day — still massive. 6.4k this week. The "give agents internet eyes" toolkit is permanent infrastructure now.
NVIDIA/SkillSpector — 5.2k stars this week (7.4k total). Eighth day, crossed 7k. 70% of its total stars came in the last week. As the skills ecosystem crosses 400k+ combined stars, the security scanner becomes mandatory. Finding 26% of skills contain vulnerabilities. Apache-2.0.
addyosmani/agent-skills — 11.4k stars this week (62.2k total). Past 62k. Eighth day. Still pulling 1k+/day at altitude. The canonical agent skills framework is now the jQuery of the agent era — everyone uses it, nobody questions it.
chopratejas/headroom — 9.8k stars this week (31.3k total). Crossed 31k. From 6k four weeks ago to 31k. The context compression engine (60-95% token reduction) is the fastest-growing AI infra repo of Q2. "Context engineering" isn't a buzzword — it's a line item.
AI & ML
google-research/timesfm — 712 stars today (21.8k total). New to digest. Google's time-series foundation model (TimesFM 2.5) — 200M params, 16k-step context, quantile forecasting, covariate support. Powers BigQuery ML and Google Sheets forecasting. Apache-2.0. If you work with time series, this is the pretrained model to beat.
OpenBMB/VoxCPM — 460 stars today (30.4k total). Second day. Tokenizer-free TTS generating speech directly in continuous latent space. 2B params, 30 languages, voice cloning from text descriptions. 48kHz quality, RTF ~0.3 on 4090. Still accelerating past 30k.
rohitg00/ai-engineering-from-scratch — 398 stars today (34k total). 503 lessons across 20 phases. Multi-language (Python, TS, Rust, Julia). The "learn AI properly" curriculum has quietly become the most comprehensive open-source AI course.
calesthio/OpenMontage — 71 stars today (5.2k total). New to digest. First open-source agentic video production system — 12 pipelines, 52 tools, 400+ agent skills. Creates real motion-picture videos from stock footage (Archive.org, NASA, Wikimedia), not just Ken Burns over stills. Narration, editing, localization. AGPLv3. The "agentic everything" wave hits video production.
Developer Tools
farion1231/cc-switch — 830 stars today (103k total). Unified config manager for 7 AI coding tools (Claude Code, Codex, Gemini CLI, etc.). 50+ provider presets, one-click switching, MCP/skills sync across tools, local proxy with failover. Tauri 2 + Rust backend. The "multi-agent desktop" problem now has a proper control plane.
vercel-labs/json-render — 127 stars today (15.4k total). New to digest. Generative UI framework — AI generates JSON specs matching your component schema, you render them safely. 36 pre-built shadcn/ui components. Renderers for React, Vue, Svelte, React Native, PDF, email, terminal. The guardrailed approach to AI-generated UIs.
diegosouzapw/OmniRoute — 73 stars today (6.4k total). AI gateway routing across 226 providers with 15 routing strategies, token compression (15-95% savings), and auto-failover. Aggregates ~1.9B free tokens/month across free tiers. MIT. The plumbing layer for multi-provider AI.
n0-computer/iroh — 422 stars today (9.6k total). Second day. "Dial keys, not IP addresses." Rust P2P networking with QUIC, hole-punching, relay fallback. Just hit 1.0. Approaching 10k. The Rust networking stack for the post-IP-address world.
Hidden Gems
likec4/likec4 — 67 stars today (3.6k total). Architecture-as-code visualization tool inspired by C4 Model. Write architecture in a DSL, get live-updating diagrams. CLI, VSCode extension, web playground. MIT. Like Mermaid but purpose-built for software architecture with unlimited nesting.
music-assistant/server — 184 stars today (2.7k total). Open-source media library manager aggregating multiple streaming services with multi-speaker playback. Home Assistant integration. Docker-native. Apache-2.0. The "own your music stack" play.
alexzhang13/rlm — 37 stars today (4.9k total). General inference library for Recursive Language Models — plug-and-play across various sandboxes. An early bet on a post-transformer architecture paradigm.
Notable Trends
The Skills Industrial Complex is real. anthropics/skills (152k), mattpocock/skills (133k), agent-skills (62k), last30days-skill (44k), taste-skill (44k), pm-skills (19k), SkillSpector (7.4k). The combined ecosystem is approaching 500k stars. Skills aren't a feature — they're the app store of the agent era. And NVIDIA is already building the security scanner (SkillSpector) because 26% of skills have vulnerabilities. History repeating: first the marketplace, then the malware, then the antivirus.
Agent infrastructure is unbundling fast. Today's trending surface reads like a startup stack: codebase-memory-mcp (code understanding), cc-switch (config management), OmniRoute (provider routing), headroom (context compression), Agent-Reach (web perception). Six months ago these were features inside monolithic agent frameworks. Now each is a standalone project with thousands of stars. The agent stack is decomposing into specialized layers — exactly how web infrastructure evolved from monolithic frameworks to microservices.