ytstack

Plugin ytstack from marketplace yesterday-public-plugins in Yesterday-AI/skills. Commands read from the repo's manifest — 1 month ago.

Skills (22)

• check-consistency

  Audit ytstack internal consistency. Compares README (source of truth) against docs/concept.md, .ytstack/DECISIONS.md, and actual plugin content (skills/, hooks/, agents/, artifacts). Reports drift: missing or extra skills, workflow mentions that do not resolve to real skills, trigger-map gaps, hook-

• atomic-design

  Atomic Design methodology for structuring React/Next.js component libraries. Defines five levels (atoms, molecules, organisms, templates, pages) with hard import rules, classification tests, and anti-patterns. Use when creating, reviewing, or restructuring frontend components. - Read - Glob - Grep

• deutschland-stack-api

  Use when picking technologies for German public-sector projects (Bund/Länder/Kommunen), EU digital sovereignty contexts, or when user mentions Deutschland-Stack / DS-konform / Verwaltungs-IT. Biases tech choices toward the 128 graduated open-source standards catalogued by the German government. Fetc

• european-alternatives-api

  Use when picking software for EU customers, GDPR-driven replacements, digital-sovereignty contexts, or when user asks for the European / open-source version of a US product (Google Drive, Dropbox, Slack, …). Biases tech choices toward the 289 community-curated alternatives at european-alternatives.c

• handoff-session

  User-triggered session handoff. Writes a detailed HANDOFF.md with current state, open items, pending decisions, and recommended resume prompt. Use before switching machines, before long breaks, or when you need to clear context intentionally. Parallel to the automatic pre-compact hook.

• init-project

  Scaffold a ytstack project's `.ytstack/` directory with the 6 core artifacts (PROJECT.md, DECISIONS.md, KNOWLEDGE.md, RUNTIME.md, STATE.md, PREFERENCES.md). Use AFTER a pitch has been validated via office-hours (and optionally plan-ceo-review / plan-eng-review in concept-mode) -- init-project reads

• office-hours

  Use as the first step when a new project, feature, or initiative has not yet been validated, or whenever the premise needs a forcing-question test. Six forcing questions expose demand reality, status quo, desperate specificity, narrowest wedge, observation, and future-fit. Produces OFFICE-HOURS.md p

• oss-project

  Scaffold, polish, and publish open-source projects with AI-first documentation, governance, and CI. Use when: Starting a new OSS package, polishing/publishing an existing repo, setting up AGENTS.md / CONTEXT.md / DECISIONS.md / ROADMAP.md, onboarding AI agents to a codebase, or creating standard com

• plan-ceo-review

  Challenge premise, scope, and ambition via four modes: SCOPE EXPANSION, SELECTIVE EXPANSION, HOLD SCOPE, SCOPE REDUCTION. Auto-detects mode: concept-mode reviews a pitch (OFFICE-HOURS.md) before any scaffolding exists; milestone-mode reviews a committed milestone (M###-CONTEXT.md + M###-ROADMAP.md)

• plan-eng-review

  Review execution approach for feasibility, architecture, data flow, edge cases, test coverage, performance, and security risks. Auto-detects mode: concept-mode reviews a pitch (OFFICE-HOURS.md) for technical feasibility before any scaffolding; milestone-mode reviews slice-plans (M###-S##-PLAN.md) be

• plan-milestone

  Plan the next milestone: goal, exit criteria, rough size. Creates M###-CONTEXT.md and M###-ROADMAP.md. Run after init-project has scaffolded `.ytstack/`, before slice-milestone. Draws the goal from a validated pitch when available (OFFICE-HOURS.md or prior milestones); if no pitch exists yet in gree

• plan-task

  Flesh out a single task within the current slice. Reads M###-S##-PLAN.md, picks the next unplanned task, writes M###-S##-T##-PLAN.md with exact file paths + verification steps. Enforces fits-one-context-window rule. Run after slice-milestone, before executing the task.

• reassess-roadmap

  After a slice completes, review whether the milestone roadmap still fits reality. Reads recent summaries, surfaces deviations, prompts for roadmap changes (add/split/reorder/remove slices). Run at slice boundaries, not mid-slice.

• resume-session

  Reconstruct working context at the start of a new session. Reads STATE.md + HANDOFF.md (if present) + latest 3 T##-SUMMARY.md files and synthesizes a 'where we are' briefing. Run at session start before doing anything else.

• slice-milestone

  Break the current milestone into slices. Reads M###-ROADMAP.md, asks for slice content until all slices are filled. Creates M###-S##-PLAN.md per slice. Enforces 1-7 tasks per slice (iron rule). Run after plan-milestone, before plan-task.

• software-craftsmanship

  Clean code, robust architecture, no test slop. Foundational skill for high-quality software engineering, code structure, and reviews.

• spawn-milestone-team

  Dispatch the current milestone's slices to a Claude Code Agent Team. Each teammate works on a slice in parallel with its own 200k context (replaces GSD's fresh-subprocess-per-task pattern). Requires CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1 and v2.1.32+. Run after slice-milestone + plan-eng-review.

• summarize-task

  After executing a task, write its outcome summary. Reads M###-S##-T##-PLAN.md, prompts for what happened, writes M###-S##-T##-SUMMARY.md, flips checkbox in slice-plan, updates STATE.md. Optionally stages git. Run once per task completion.

• systematic-debugging

  Root-cause debugging in four phases: investigate, analyze, hypothesize, implement. Iron Law -- no fixes without root cause. Thin ytstack wrapper around the vendored superpowers systematic-debugging procedure, routing findings into KNOWLEDGE.md / DECISIONS.md. Use when hitting a bug, test failure, or

• test-driven-development

  RED-GREEN-REFACTOR: write a failing test, watch it fail, write minimal code, watch it pass, commit. Thin ytstack wrapper around the vendored superpowers test-driven-development procedure, injecting the current task's plan as context. Use during task execution.

• using-ytstack

  Establishes how agents find and invoke ytstack skills. Requires Skill-tool invocation before any response when a ytstack skill applies. Auto-injected by the SessionStart hook. Not meant for direct user invocation.

• verification-before-completion

  Run verification commands and confirm output before claiming work is complete. Evidence before assertions. Thin ytstack wrapper around the vendored superpowers verification-before-completion procedure, injecting the current task's verification command. Use before commit, before PR, before summarize-

Subagents (3)

• architect

  Plan-before-implement reviewer. Use when a ytstack milestone has been sliced and needs architectural sign-off before tasks start executing. Also useful during plan-ceo-review / plan-eng-review delegation -- the architect agent reviews the proposed plan against the project's existing code, DECISIONS.

• implementer

  Execute one slice of a ytstack milestone. Use when a slice-plan is approved and the lead dispatches you with a specific `M###-S##-PLAN.md` to work through. You own one slice at a time. You claim each task from the shared task list, execute via `ytstack:plan-task` → `test-driven-development` → `verif

• verifier

  Evidence-before-assertions gatekeeper. Use when an implementer claims a task or slice is done, before the lead accepts closure. The verifier runs the plan's verification commands from a cold context, captures output, decides pass / pass-with-caveats / fail. Blocks premature "done" claims. Examples:

Hooks (8)

• SessionStart

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/session-start"

• PreCompact

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/pre-compact"

• SessionEnd

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/session-end"

• TeammateIdle

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/teammate-idle"

• TaskCreated

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/task-created"

• TaskCompleted

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/task-completed"

• PreToolUse

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/pre-tool-use-edit"

• PostToolUse

  bash "${CLAUDE_PLUGIN_ROOT}/hooks/post-tool-use-bash"

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