What is ranking on GitHub today: September 5, 2026

mattpocock/skills takes rank 1 on GitHub on September 5, 2026, with 251,028 stars, after sitting at 2 yesterday behind fmtlib/fmt. The public GitHub API on this run also put affaan-m/ECC at 248,835 stars and NousResearch/hermes-agent at 241,659. Versus the September 4 GitHub board, google-research/timesfm and averygan/reclip leave while magnitudedev/magnitude (2,711 stars) and bikini/exploitarium (4,575 stars) enter. The GitHub trending repos API snapshot is as of 08:01:32 UTC.

mattpocock/skills: Collection billed as Skills for Real Engineers from a .agents directory. 251,028 stars. Climbs 2 to 1.
DietrichGebert/ponytail: Agent prompt pack that tells a model to think like a lazy senior developer. 126,776 stars. Climbs 4 to 2.
fmtlib/fmt: C++ formatting library. 25,511 stars. Yesterday's #1 slips to 3 after a June 16 v12.2.0 line still in circulation.
affaan-m/ECC: Agent runtime billed around skills, instincts, and memory. 248,835 stars. Climbs 6 to 4.
anthropics/skills: Anthropic's public Agent Skills repository. 174,280 stars. Holds 5.
blader/humanizer: Skill that strips AI-writing tells from text. 42,972 stars. Climbs 8 to 6.
NousResearch/hermes-agent: Hermes agent project. 241,659 stars. Slips 3 to 7.
JuliusBrussee/caveman: Claude Code skill that claims a 65 percent token cut. 103,689 stars. Holds 8.
magnitudedev/magnitude: Open-source inference server that profiles hardware, then downloads and runs local models for agents such as Hermes and Claude Code. Apache-2.0. 2,711 stars. New at 9.
bikini/exploitarium: Archive of public exploit proof-of-concept writeups. 4,575 stars. LevelBlue's SpiderLabs described a mass PoC drop that kept growing after June. New at 10.

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What changed on GitHub since yesterday

New entrants: magnitudedev/magnitude (9), bikini/exploitarium (10).

Big movers: mattpocock/skills 2 to 1; ponytail 4 to 2; fmtlib/fmt 1 to 3; hermes-agent 3 to 7.

Drop-offs: google-research/timesfm (9), averygan/reclip (10).

What today's GitHub repos reveal

Eight of ten rows are still agent-skill or agent-runtime projects. fmt at 3 is the only classic library, and it lost the top slot despite adding stars (25,305 yesterday in the prior post, 25,511 on this pull).

timesfm leaving rank 9 after a 30,825-star showing on September 4 is a research-model exit, not a skills-README fight. reclip at 8,607 stars on that same pull is gone too. The new floor is magnitude at 2,711 and exploitarium at 4,575, which is a much thinner star base than the 100,000-plus cluster above them.

magnitude at 9 is the new local-inference pitch: one binary that picks models for the machine instead of a separate Ollama install. exploitarium at 10 is a security-archive controversy, not a skills README, which is the day's only non-agent story.

Star counts here come from the public GitHub API at write time, not from extra fields on get_top_trends.

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This list came from the Trends MCP get_top_trends tool with type GitHub and limit 10. The feed is for analysts who need a dated ranked board rather than a homepage screenshot.