Batch 27 — Skill marketplaces overflow + harness reference shelves
Roster (10)
| slug | stars | distribution | cli_binary | local_ui | orchestration | multi_model | tier |
|---|---|---|---|---|---|---|---|
| ozzeron-prompt-pack | 6 | skill-pack | no | no | sequential | no | A |
| cc-marketplace-setouchi | 16 | claude-plugin | no | terminal-tui (statusline) | none | no | A |
| knowhub | 40 | npm-package | yes (knowhub) | no | none | no | A |
| awesome-slash-commands | 823 | npm-package | yes (agentsys) | no | hierarchical | yes | A |
| ccct | 15 | command-pack | no | no | sequential | no | A |
| awesome-harness-engineering-walkinglabs | 2,734 | methodology-doc | no | no | none | no | A |
| learn-harness-engineering-walkinglabs | 6,558 | methodology-doc | no | web (VitePress) | none | no | A |
| nexu-harness-guide | 134 | methodology-doc | no | web (VitePress) | none | no | A |
| kevinten-harness-guide | 0 | methodology-doc | no | no | none | no | A |
| danielrosehill-ai-harnesses | 3 | methodology-doc | no | no | none | no | A |
Intra-batch patterns
The batch splits cleanly into two archetypes: active skill/command packs (ozzeron-prompt-pack, cc-marketplace-setouchi, awesome-slash-commands, ccct) and harness engineering documentation (the four walkinglabs/nexu/kevinten/danielrosehill repos). The documentation cluster forms a recognizable three-tier curriculum: reference catalog (awesome-harness-engineering) → structured course (learn-harness-engineering) → practitioner technical guide (nexu-harness-guide) → taxonomy snapshot (danielrosehill). knowhub is an outlier — a file-distribution tool that operates below the prompt layer, syncing rule files to destinations, with no workflow methodology of its own. The skill/command packs share a common anti-catalogue stance: all four explicitly position against breadth-first collections in favor of focused, opinionated primitives. Among the command packs, awesome-slash-commands (AgentSys) is the most architecturally complex — 26 independent plugin repos, a companion LSP linter (agnix), multi-model routing, and multi-agent orchestration — while the others are lighter single-author packs.
Most interesting finds
awesome-slash-commands (AgentSys): The
agnixcompanion (423 validation rules, LSP, 12+ platforms) is unique in the entire Phase B corpus — the only framework that ships a config linter for its own format. The/banthisnegative-memory command (persist "never do X" instructions) is a novel behavioral control pattern absent from all seeds.learn-harness-engineering-walkinglabs: At 6,558 stars, this is the highest-starred entry in this batch and one of the highest in Phase B overall. The five-subsystem harness model (Instructions/State/Verification/Scope/Lifecycle) + the
harness-creatorscaffolding skill with structural validation scoring is the most actionable "harness as code" artifact in the batch.
Items written as Tier C
None — all 10 frameworks had sufficient material for full 11-file reports. danielrosehill-ai-harnesses has only a single README but that README contains unique terminological and temporal data that justifies full treatment.
Cross-references discovered
- awesome-harness-engineering-walkinglabs is listed in its own Courses section pointing to
learn-harness-engineering-walkinglabs— explicit sibling relationship - learn-harness-engineering-walkinglabs cites awesome-harness-engineering as a primary reference in its README
- kevinten-harness-guide cites awesome-harness-engineering-walkinglabs as a reference source
- nexu-harness-guide cites awesome-harness-engineering-walkinglabs (via its references section)
- danielrosehill-ai-harnesses lists awesome-harness-engineering-walkinglabs in its Resource Lists table at its April 2026 star count (1,264 vs current 2,734)
- ccct acknowledges claude-task-master and ai-dev-tasks as direct inspirations
- The SKILL.md format (with YAML frontmatter) used by ozzeron-prompt-pack, learn-harness-engineering, and nexu-harness-guide appears to be converging toward a de-facto standard — none cites the others as the origin, suggesting independent convergence or a shared upstream (possibly skills.sh marketplace)
- awesome-slash-commands (AgentSys) version 5.14.0 names the repo
avifenesh/awesome-slashbut the actual package isagent-sh/agentsys— the GitHub repo is the marketplace/installer while the package orgagent-shholds the 26 independent plugin repos