cc-thingz

Things to make Claude Code even better — hooks, skills, and commands, organized as a marketplace of independent plugins.

This is an unapologetically opinionated set. Every skill here is something I actually use — some multiple times a day (brainstorm, plan, review), others less often but worth having in the toolbox. There are plenty of plugin collections out there, from random grab-bags to well-organized catalogs. This one is mine, and it reflects how I work. Even if you don't need my particular toolbox, it might give you ideas for building your own and making Claude Code do what you want it to do.

Install

Add the marketplace, then install the plugins you want:

/plugin marketplace add umputun/cc-thingz

/plugin install brainstorm@umputun-cc-thingz
/plugin install review@umputun-cc-thingz
/plugin install planning@umputun-cc-thingz
/plugin install release-tools@umputun-cc-thingz
/plugin install thinking-tools@umputun-cc-thingz
/plugin install skill-eval@umputun-cc-thingz
/plugin install workflow@umputun-cc-thingz

Test a plugin locally:

claude --plugin-dir plugins/brainstorm

Copy the files you want to your Claude Code config directory manually.

brainstorm — skill:

cp -r plugins/brainstorm/skills/brainstorm ~/.claude/skills/
cp -r plugins/brainstorm/scripts/ ~/.claude/skills/brainstorm/scripts
cp -r plugins/brainstorm/references/ ~/.claude/skills/brainstorm/references

Note: when installed manually, update ${CLAUDE_PLUGIN_ROOT} references inside brainstorm/SKILL.md to use ~/.claude/skills/brainstorm instead.

review — skills (review-pr + git-review + writing-style):

cp -r plugins/review/skills/pr ~/.claude/skills/
cp -r plugins/review/skills/git-review ~/.claude/skills/
cp -r plugins/review/skills/writing-style ~/.claude/skills/
chmod +x ~/.claude/skills/git-review/scripts/git-review.py

Note: update the /review:writing-style reference inside pr/SKILL.md to /writing-style when installed manually.

planning — command + exec skill + hook:

cp plugins/planning/commands/make.md ~/.claude/commands/
cp -r plugins/planning/skills/exec ~/.claude/skills/
cp -r plugins/planning/scripts/ ~/.claude/commands/scripts
cp -r plugins/planning/references/ ~/.claude/commands/references
cp plugins/planning/scripts/plan-annotate.py ~/.claude/scripts/
chmod +x ~/.claude/scripts/plan-annotate.py
chmod +x ~/.claude/skills/exec/scripts/*.sh

Note: when installed manually, update ${CLAUDE_PLUGIN_ROOT} references inside exec/SKILL.md, make.md, and prompt files to use the appropriate local paths instead.

Add the plan-annotate hook to ~/.claude/settings.json:

{
  "hooks": {
    "PreToolUse": [{
      "matcher": "ExitPlanMode",
      "hooks": [{
        "type": "command",
        "command": "~/.claude/scripts/plan-annotate.py",
        "timeout": 345600
      }]
    }]
  }
}

release-tools — skills + scripts:

cp -r plugins/release-tools/skills/new ~/.claude/skills/
cp -r plugins/release-tools/skills/last-tag ~/.claude/skills/
chmod +x ~/.claude/skills/release/scripts/*.sh

thinking-tools — skills:

cp -r plugins/thinking-tools/skills/ask-codex ~/.claude/skills/
cp -r plugins/thinking-tools/skills/dialectic ~/.claude/skills/
cp -r plugins/thinking-tools/skills/root-cause-investigator ~/.claude/skills/

skill-eval — hook:

cp plugins/skill-eval/hooks/skill-forced-eval-hook.sh ~/.claude/scripts/
chmod +x ~/.claude/scripts/skill-forced-eval-hook.sh

Add the skill-eval hook to ~/.claude/settings.json:

{
  "hooks": {
    "UserPromptSubmit": [{
      "hooks": [{
        "type": "command",
        "command": "~/.claude/scripts/skill-forced-eval-hook.sh"
      }]
    }]
  }
}

workflow — skills:

cp -r plugins/workflow/skills/learn ~/.claude/skills/
cp -r plugins/workflow/skills/clarify ~/.claude/skills/
cp -r plugins/workflow/skills/wrong ~/.claude/skills/
cp -r plugins/workflow/skills/md-copy ~/.claude/skills/
cp -r plugins/workflow/skills/txt-copy ~/.claude/skills/

Restart Claude Code for changes to take effect.

Updating plugins

The /plugin menu has two update paths, and they behave differently:

• /plugin → Marketplaces → Update marketplace — pulls the latest plugin catalog from the repo immediately. This is the reliable way to get updates.
• /plugin → Installed → Update now — uses a local cache that can be stale for a long time and may not reflect recent changes. Use this as a fallback after updating the marketplace.

To keep plugins current automatically, enable /plugin → Marketplaces → Enable auto-update. This updates the marketplace catalog on each session start.

Plugins

brainstorm

Collaborative design skill. Invoke with /brainstorm:do or trigger phrases like "brainstorm", "let's brainstorm", "help me design", "explore options for", etc.

Guides a 4-phase dialogue to turn ideas into designs:

1. Understand — gathers project context, asks questions one at a time (multiple choice preferred)
2. Explore Approaches — proposes 2-3 options with trade-offs, leads with recommendation
3. Present Design — breaks design into sections of 200-300 words, validates each incrementally
4. Next Steps — offers to write a plan (/planning:make), enter plan mode, or start implementing

review

PR review, interactive git diff annotation review, and writing style tools. Install together — review-pr uses writing-style for drafting comments.

review-pr — analyzes code quality, architecture, test coverage, and identifies scope creep:

• Phase 0 — detects PR vs issue (issues get a simpler comment-only flow)
• Phase 1 — fetches PR metadata, discussion history, merge status, and inline suggestions
• Phase 1.5 — asks review mode: Full (worktree + tests + linter + architecture) or Quick (diff-only)
• Phase 2 — sets up worktree and launches a subagent for deep analysis
• Phase 3-4 — presents findings, resolves open design questions
• Phase 5 — drafts review comment using /review:writing-style, posts as formal review
• Post-approve — recommends merge strategy (rebase vs squash vs merge)

Uses gh CLI for all GitHub operations and git worktrees to avoid disrupting the current checkout.

git-review — interactive annotation-based code review. Generates a cleaned-up diff, opens it in $EDITOR via tmux popup, kitty overlay, or wezterm split-pane. You annotate directly in the diff, and the script returns your changes as a git diff. Claude reads annotations, fixes code, regenerates the diff, and loops until you close the editor without changes. Supports auto-detection of uncommitted changes or branch diffs.

Run tests: python3 plugins/review/skills/git-review/scripts/git-review.py --test

writing-style — enforces direct, brief writing for tickets, PRs, code reviews, and commit messages. Core principles: brevity, honest feedback, problem-solution structure, technical precision, anti-AI-speak. Does NOT apply to README.md, public docs, or blog posts.

planning

Structured implementation planning with interactive annotation review and autonomous plan execution.

plan command — creates a plan file in docs/plans/yyyymmdd-<task-name>.md through interactive context gathering:

• Step 0 — parses intent and explores codebase for relevant context
• Step 1 — asks focused questions one at a time (goal, scope, constraints, testing approach, title)
• Step 1.5 — proposes 2-3 implementation approaches with trade-offs (skipped if obvious)
• Step 2 — creates the plan file with tasks, file lists, test requirements, and progress tracking
• Step 3 — offers interactive review (opens plan in $EDITOR via plan-annotate), auto review, start implementation, or done

plan-annotate.py — interactive plan annotation tool. Opens plans in your $EDITOR via a terminal overlay (agterm overlay, tmux popup, kitty overlay, or wezterm split-pane), let