ypi: A recursive coding agent inpired by RLMs

by rawwerks · Codex Skill · ★ 391

Last updated: · Indexed by AgentSkillsHub · Auto-synced every 8h

How to install ypi

npm install -g ypi
npx ypi "What does this repo do?"

Taken from the project's README on GitHub.

Security audit verdict: SAFE · quality 68/100

None of the 42 rules matched — no credential harvesting, no data exfiltration, no curl-pipe-shell installer. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours.

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

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Quick Facts

Stars391
Forks36
LanguageShell
CategoryCodex Skill
LicenseMIT
Quality Score68/100
Open Issues11
Last Updated2026-06-22
Created2026-02-09
Platformscli
Est. Tokens~13k

About ypi

ypi ypi — a recursive coding agent built on Pi. Named after the Y combinator from lambda calculus — the fixed-point combinator that enables recursion. is Pi that can call itself. ( already has another connotation.) Inspired by Recursive Language Models (RLM), which showed that an LLM with a code REPL and a function can recursively decompose problems, analyze massive contexts, and write code — all...

Compatible Skills

These tools work well together with ypi for enhanced workflows:

  • rlm-rs — semantic(0.30)+complementary+rare_topics+similar_pop+shared_platform (50%)
  • aleph — semantic(0.38)+complementary+rare_topics+similar_pop (48%)
  • pi-mcp-adapter — semantic(0.32)+complementary+rare_topics+similar_pop (46%)

ypi alternative? Top 6 similar tools

Looking for a ypi alternative? If you're comparing ypi with other codex skill tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

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  • pi-fabric by fabric-runtime · ⭐ 323

    A programmable tool and agent runtime for Pi

  • pi-fabric by monotykamary · ⭐ 277

    A programmable tool and agent runtime for Pi

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  • NagaAgent by RTGS2017 · ⭐ 1.5k

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  • Mysti by DeepMyst · ⭐ 1.2k

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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