Source: ai-research/mulerun-skillshub-2026-05-28.md
URL: https://mulerun.com/skillshub Featured skill categories surfaced in extract: skill maintenance (skill-creator/updater/validator, plugin-validator, link-checker), code execution (code-runner), media (generating-memes, video-comparer), text processing (transcript-fixer, figlet-text-converter), session/history recovery, competitive analysis.
A second third-party Claude/Codex skill-discovery directory, sister to claudeskills.info but with two structural differences: it surfaces per-skill RUN counts (raw execution tallies, not stars/installs) and it foregrounds skill-maintenance utilities (skill-creator, skill-updater, skill-validator, plugin-validator, link-checker) as the lead catalog tier. Skills are authored for both .claude/skills/ and .codex/skills/ directories, with AGENTS.md awareness baked into the lead skill-creator skill.
Key Takeaways
- Dual-runtime by default. The lead
skill-creatorskill targets both Claude Code (.claude/skills/) and Codex (.codex/skills/) directory conventions in one entry — the Hub doesn’t fork the catalog by runtime. - RUN counts as engagement metric. Each card displays a numeric
RUNcount rather than stars or installs (observed values: 15, 16, 602). Interpret as raw execution counts — community signal, not a quality bar. - Skill-maintenance tier leads the catalog. First-class billing for
skill-creator / skill-updater / skill-validator / plugin-validator / link-checkerpositions the Hub as a workshop layer for skill authors, not only a discovery layer for consumers. - AGENTS.md-aware skill generation. The
skill-creatordescription explicitly mentions aligning generated skills againstAGENTS.mdrules — directly compatible with the per-topicAGENTS.mdconvention in the karpathy vault schema. - Differentiates from claudeskills.info on two axes. claudeskills.info surfaces cross-vendor publisher collections (Anthropic, OpenAI, Microsoft, Google, Vercel, GitHub Copilot, WordPress) with stars/installs; MuleRun surfaces RUN-count engagement on individual maintenance and utility skills. Use both for complementary discovery, not redundant lookup.
- Trust posture: discovery surface, not a vetting authority. ^[inferred] No publisher tiers or curator vetting surfaced in the extract — treat individual skills with the same caution as raw GitHub finds. Use Hub → underlying repo → manual review before installing.
- Extract was partial. Tavily’s
extract_depth: advancedreturned individual skill cards but truncated the category navigation, install instructions, and counts beyond the visible RUN tallies. Full taxonomy enumeration would require a second pass.
Notable cataloged skills
| Skill | Purpose | RUN |
|---|---|---|
skill-creator / skill-updater / skill-validator | Create / update / validate skills against codebase + AGENTS.md rules; tune YAML triggers; generate <available_skills> blocks | 16 |
code-runner | Execute code in 30+ languages | 16 |
generating-memes | Meme CLI with 298 templates | 16 |
plugin-validator | Validate plugin structure, manifests, silent-failure patterns | 15 |
figlet-text-converter | Replace figlet tags with ASCII art; preserves comment styles; 400+ fonts | 15 |
link-checker / portability | Validate links + absolute-vs-relative paths in skills/plugins | 15 |
session-history recovery | Recover deleted files / find work from previous .claude/projects/ sessions | — |
competitors-analysis | Evidence-based competitor tracking (code-grounded, not assumption-based) | 602 |
transcript-fixer | Correct ASR/STT errors, homophones, mixed-language transcripts; learns personalized correction dictionaries | 602 |
video-comparer | (description truncated in extract) | — |
Related
- Claude Skills Hub (claudeskills.info) — sister directory with publisher-tier framing; use both for complementary discovery
- awesome-claude-code (hesreallyhim) — community-curated awesome-list, GitHub-native
- Plugins and Marketplaces — broader ecosystem view across SkillsMP, TokRepo, awesome-claude-skills, and Claude Code plugin marketplaces
- skills — Anthropic’s first-party skill collection
- Superpowers — Jesse Vincent’s skills framework, also indexed by directory sites
- inbox-refresh — adjacent to skill discovery — wiki ingest pipeline that consumes directory sources
Try It
- Visit https://mulerun.com/skillshub to browse the live catalog.
- To compare against the wiki’s existing reference directory, cross-check with claudeskills.info — note which skills appear in one but not the other (RUN-count framing tends to surface different leaders than star-count framing).
- To install a candidate skill: follow the link from the Hub card to the underlying GitHub repo, audit the SKILL.md against your project’s needs, and install via the standard Claude Code skills path (
.claude/skills/<name>/) — the Hub does not appear to ship its own one-click installer in the extracted snapshot. - For skill authors: the lead
skill-creatortool is itself a candidate skill to install — it would automate the create/update/validate cycle of skills you write, aligned to your repo’sAGENTS.md.
Open Questions
- Full category taxonomy — extract truncated category navigation; a second pass (browser-driven scrape or page-level Tavily walk) would enumerate the full structure.
- Install/submission flow — does the Hub support PR-based submission, one-click install, or pure discovery + link-out only?
- RUN counter source — is the RUN count Hub-internal telemetry, self-reported by skill authors, or aggregated from a CLI? Affects how to interpret 602 vs 15 as quality signal.
- Overlap with claudeskills.info / SkillsMP — how much of the catalog is the same canonical set vs unique to MuleRun? A diff would inform whether to track both or pick one as canonical.