Yesterday's PUBLIC Claude Code plugin catalog. Public-tauglich plugins, no Yesterday-infra deps.
A thin marketplace catalog that lists Yesterday's PUBLIC Claude Code plugins. Generic-tauglich means: no dependency on Yesterday infrastructure -- any team can install and use these plugins.
Add the marketplace:
/plugin marketplace add Yesterday-AI/ystacksBrowse and install interactively:
/pluginOr install a plugin directly:
/plugin install yastack@ystacks
/plugin install yopstack@ystacks
/plugin install ydstack@ystacksNo auth required -- ystacks is public.
14 plugins listed here (5 stacks + 1 stack-extras tier + 8 own-plugins). Total: 5 stacks in the family.
| Plugin | Source | Purpose |
|---|---|---|
| yastack | github Yesterday-AI/yastack |
Agent core -- 14 generic skills for AI agents at Levels-of-AGI 3-4 (Collaborator / Expert). Imports creative-productivity + para-memory-files + skill-creator (cross-mp from claude-plugins-official). |
| yopstack | github Yesterday-AI/yopstack |
Ops core -- 1 skill shipped (opentofu); 3 gstack skills pending vendor (land-and-deploy, canary, setup-deploy). Imports skill-creator (cross-mp from claude-plugins-official). |
| ydstack | local subdir ./plugins/ydstack |
Daily-work core tier -- 6 skills (exa-search-api, excalidraw-diagram, slack-best-practices, using-github, web-scraper, x-reader) + 2 cross-mp imports from ystacks (creative-productivity, para-memory-files) + skill-creator (cross-mp from claude-plugins-official). No external SaaS keys required. |
| ydstack-extras | local subdir ./plugins/ydstack-extras |
Daily-work extras tier -- wrapper bundle, no own skills. 4 cross-mp imports for optional SaaS integrations (figma-console-mcp, miro-board, voxtral-tts-api, vrr-efa-api). Install alongside ydstack when you actually use these services. |
| ycstack | local subdir ./plugins/ycstack |
Consulting placeholder -- no skills yet. Yesterday-team consulting skills live in private ycstack-internal. Imports skill-creator (cross-mp from claude-plugins-official). |
| ytstack | github Yesterday-AI/ytstack |
Engineering OS for AI coding agents -- 21 skills (project-OS lifecycle + curated wrappers). Imports skill-creator (cross-mp from claude-plugins-official) + web-design + yesterday-brand. |
| Plugin | Source | Imported by |
|---|---|---|
| creative-productivity | local subdir | yastack, ydstack |
| figma-console-mcp | local subdir | ydstack-extras |
| miro-board | local subdir | ydstack-extras |
| para-memory-files | local subdir | yastack, ydstack |
| voxtral-tts-api | local subdir | ydstack-extras |
| vrr-efa-api | local subdir | ydstack-extras |
| web-design | local subdir | ytstack |
Note on
skill-creator: previously hosted here as a local subdir wrapper, dropped 2026-04-29. All 5 stacks now reference Anthropic'sskill-creator@claude-plugins-officialdirectly via cross-marketplace dependency. Reasons: Anthropic's version has eval-viewer, sub-agents, and description-optimizer (our wrapper had templates + checklist only); duplicate plugin name caused Claude Code's transitive auto-install resolver to skip the dep entirely. Users who install any stack will be prompted to addanthropics/claude-plugins-officialif they have not already.
Yesterday-team has a separate private catalog with internal-only plugins and Yesterday-bundle plugins (-internal suffix) that compose public plugins with Yesterday-infra service-clients. Org members can request access via Yesterday-AI.
External users do not need it; ystacks alone provides the public Yesterday plugin family.
Mixed-visibility marketplaces (public catalog listing private plugins) leak plugin names + descriptions while users cannot install. The 2026-04-25 architecture session split into two catalogs, one per visibility:
- ystacks (this repo, public) -- only plugins that work without Yesterday-infra.
- A private companion catalog exists for Yesterday-team-internal plugins (request access via Yesterday-AI).
Each plugin has its own repo with its own .ytstack/DECISIONS.md for per-plugin architectural choices.
A plugin earns a listing here if:
- Lives in its own
Yesterday-AI/<name>repo (or./plugins/<name>/subdir if it's a skill collection that shares ystacks's lifecycle). - Has a tagged release with a valid
.claude-plugin/plugin.json. - Has no Yesterday-infra dependencies (otherwise it belongs in the private companion catalog).
- Follows Yesterday's plugin standards (see ytstack/CONTRIBUTING.md as the reference).
See CONTRIBUTING.md for the PR workflow.
ystacks/
├── .claude-plugin/
│ └── marketplace.json the public catalog (13 plugins)
├── plugins/
│ ├── ydstack/ daily-work skill collection -- core tier (6 skills + 2 cross-mp imports + skill-creator from claude-plugins-official)
│ ├── ydstack-extras/ daily-work wrapper -- extras tier (0 skills + 4 cross-mp imports for optional SaaS)
│ ├── ycstack/ consulting placeholder
│ ├── creative-productivity/ own-plugin (deliverables orchestrator)
│ ├── figma-console-mcp/ own-plugin (Figma MCP)
│ ├── miro-board/ own-plugin (Miro MCP)
│ ├── para-memory-files/ own-plugin (PARA agent memory)
│ ├── voxtral-tts-api/ own-plugin (Mistral TTS)
│ ├── vrr-efa-api/ own-plugin (DE regional transit)
│ └── web-design/ own-plugin (frontend craft, imported by ytstack)
├── README.md this file
├── CLAUDE.md contributor guide for AI agents
├── CONTRIBUTING.md contributor guide for humans
├── LICENSE MIT
├── NOTICE attribution
└── .gitignore
Migration complete (2026-04-26). 13 plugins listed here: 5 stacks (yastack, yopstack, ydstack, ycstack, ytstack) + 1 stack-extras tier (ydstack-extras, NEW 2026-04-29) + 7 own-plugins (creative-productivity, figma-console-mcp, miro-board, para-memory-files, voxtral-tts-api, vrr-efa-api, web-design). Skills migrated from agentic-foundation per MIGRATION-TRIAGE.md v8 FROZEN. yopstack still pending the gstack vendor subtree for land-and-deploy / canary / setup-deploy. ytstack flipped public + listed here on 2026-04-29 (previously cross-listed in ystacks-internal while private). 2026-04-29: dropped local skill-creator wrapper -- all 5 stacks now reference skill-creator@claude-plugins-official directly.
MIT. See LICENSE. Plugins listed here carry their own licenses.
Maintained by Yesterday.