session-deck

Claude Mod Garage

A shelf of small, independent mods for Claude Code. Install only the ones you want. Each has its own README with install steps and a sample of what it looks like.

Browse the demo site for a visual walkthrough of every mod, with copy-paste install commands.

15 mods in five groups: watch what is happening, stay safe, quality and flow, multi-session, and fun. They are independent: each is its own plugin, installs on its own, and removes cleanly.

Quick start

1. Add the marketplace once: `` /plugin marketplace add cloudcruncher/claude-mod-garage ``
2. Install any mod by name: `` /plugin install agent-radar@mod-garage ``
3. Run /reload-plugins (or restart). Then use the mod's command (see tables) or just let it work.

Try one without installing: git clone https://github.com/cloudcruncher/claude-mod-garage, then claude --plugin-dir ./claude-mod-garage/dev-mods/agent-radar.

Requirements

• A Claude Code build that supports plugin hook modules (hooks/hooks.json with a "modules" list). If /plugin install succeeds but nothing happens, your build is probably too old.
• The mods are TypeScript hook modules that Claude Code loads itself. There is nothing to compile and no runtime to install.
• Built and tested on macOS. Side panes dock beside the conversation from about 110 terminal columns; on narrower terminals they may not be shown.
• verify-gate and git-band shell out to your own tools (npm, uv, make, git). Those need to be on your PATH.

Pick a mod

Watch what's happening

See your agents, git state and spend without leaving the terminal.

Stay safe

Guardrails that stop mistakes before they cost you.

Quality & flow

Faster prompts, automatic checks, and a record of what happened.

Multi-session

Run several Claude sessions and keep them aware of each other.

Wellbeing & fun

For the long runs.

Mod details

Every mod in full. Click one to expand.

Opens a pane beside the conversation that updates in real time. It shows what each loop is doing right now (thinking, writing its next message, starting a tool call) and the tool running (with a ticking timer) and what the model last said in its visible messages, every subagent with its recent calls and latest message, an activity log with a one-line result under each call, the files edited this session, and in the header a working/idle state, turn time, a context bar with the window split by category (system prompt, tools, skills, messages) and a ranked list of what is filling the conversation (which tools' results, your prompts, the model's replies, and the biggest single results; token figures there are estimates), and 5h usage. Ideal when you fan out several subagents and want to see who is doing what.

Install

/plugin install agent-radar@mod-garage

Use it

• /radar opens the pane (Esc closes it).
• Set option autoOpen to open it at every session start.

What you'll see (illustrative)

/radar pane

● working (2 tools running)  ·  turn 1m12s  ·  14 calls  ·  5h 8%
ctx ███░░░░░░░ 34%  (+6% this turn)
  System prompt 3.9k  ·  System tools 9.2k  ·  Skills 7.5k  ·  Messages 29k

Now
● main writing: “Running the suite before I touch the parser…”  3s
▶ Bash npm test -- --watch=false  8s
▶ [a3f1] Grep validateToken  2s
  “Running the suite before I touch the parser, then I'll fix whatever fails.”

Agents  (3 spawned)
▶ Explore · map auth flow
    ✓ Read src/auth.ts  0s
    ✓ Grep validateToken  1s
    “Token checks live in src/auth.ts and middleware/session.ts.”
· Plan · outline migration

Building up in context  (estimate)
  ████████ Read ×6  11k
  ███░░░░░ Bash ×3  4.1k
  █░░░░░░░ Replies  1.2k
  biggest:
    7.0k  Read src/auth.ts
    2.5k  Bash npm test

Activity
✓ Bash npm test  14s
    → 12 passed
✗ Bash npx tsc --noEmit  6s
    → src/auth.ts(41,5): error TS2322: Type 'string' is not assignable…
✓ Read src/auth.ts  0s

Files touched
  auth/token.test.ts ×2
  src/auth.ts

Options

Set options when installing, or later in /plugin → the mod → configure. Notes

• Panes dock beside the transcript from about 110 terminal columns; narrower terminals show it above the prompt.
• [a3f1] is the first 4 characters of a subagent id; calls with no tag are the main session's.
• Shows the model's visible messages only. Its private reasoning is never read or displayed.
• Redraws once a second while the pane is open.

Adds one dim line above the prompt with the current git branch, how many files changed, and commits ahead or behind upstream. It refreshes after every turn and every 15 seconds, so you notice at a glance when Claude has modified files or you are on the wrong branch.

Install

/plugin install git-band@mod-garage

Use it

• Automatic once installed. Nothing to run.

What you'll see (illustrative)

Above the prompt

⎇ feature/login ● 3 changed ↑1
> _

After committing

⎇ feature/login ✓ clean ↑2
> _

Notes

• Shows nothing outside a git repository.

When a turn runs longer than a threshold and used tools, shows a one-line toast so you can tab away during long runs and come back to a summary.

Install

/plugin install turn-recap@mod-garage

Use it

• Automatic once installed.

What you'll see (illustrative)

Toast

Turn done in 1m 35s · 12 tool calls · 3 files edited

Options

Set options when installing, or later in /plugin → the mod → configure.

Shows 5h NN% | ctx NN% in the status line, toasts once when your 5-hour usage passes 70% and 85%, and picks haiku/sonnet/opus for subagents that were given no model, based on keywords in their task. Explicit models are never overridden.

Install

/plugin install cost-router@mod-garage

Use it

• Automatic once installed.

What you'll see (illustrative)

Status line

5h 62% | ctx 34%

Toast

5h usage passed 70% (now 71%)

Notes

• With no subscription rate-limit data, values show as n/a and no toasts fire.

Refuses to write .env, .pem, SSH keys and credentials files, refuses commands that contain API keys or high-entropy tokens, blocks git add/commit of staged secrets, and blocks pushes to main/master and force pushes. .env.example-style files are allowed.

Install

/plugin install secret-guard@mod-garage

Use it

• Automatic once installed.

What you'll see (illustrative)

Model tries to write .env

secret-guard: refusing to write .env. .env is an environment file that usually holds secrets. Use a .env.example with placeholder values, or ask the user to edit it.

Model tries to push

secret-guard: git push blocked: pushing to main is not allowed.

Notes

• Fails closed: if the guard itself errors, the write or git command is blocked.

If the same tool is called with identical arguments more than N times in a row, the next call is refused with a message telling the model to change approach, and you get a toast. Each subagent is judged on its own calls. If the hook errors it fails open.

Install

/plugin install loop-breaker@mod-garage

Use it

• Automatic once installed.

What you'll see (illustrative)

Fourth identical call

This exact Bash call has already run 3 times in a row with the same arguments. Repeating it will not change the result. Re-read the output, change the arguments, or try a different approach.

Toast

loop-breaker: refused a Bash call repeated 4 times

Options

Set options when installing, or later in /plugin → the mod → configure.

/readonly on refuses every file edit and every shell command that is not clearly read-only (ls, cat, grep, git status/log/diff, find without -delete...). Redirects, command substitution and unknown commands are refused. Great for onboarding to unfamiliar code or inspecting a production checkout.

Install

/plugin install read-only-mode@mod-garage

Use it

• /readonly on to enable, /readonly off to disable, /readonly status to check.

What you'll see (illustrative)

Enable

> /readonly on
Read-only mode ON: edits and mutating commands are refused.

Model tries to edit

Read-only mode is on (the user ran /readonly on). Do not edit files; describe the change instead.

Status line

🔒 read-only

Notes

• It is a guardrail on the model's tool calls, not a sandbox: it does not stop you from running commands yourself.

Snapshots files before the model edits them or runs risky shell commands. /rewind-to lists the checkpoints and restores one.

Install

/plugin install auto-checkpoint@mod-garage

Use it

• Snapshots are automatic.
• /rewind-to list shows checkpoints; /rewind-to 2 restores checkpoint 2.

What you'll see (illustrative)

/rewind-to list

1  14:02  Edit src/auth.ts
2  14:05  Edit src/auth.ts
3  14:09  Bash git checkout -- .

/rewind-to 2

Rewound to checkpoint 2:
restored src/auth.ts

Notes

• Output format shown is illustrative.

Toasts at 70% context. At 85% it also adds an instruction telling the model to wrap up the current step and run /compact, keeping the task, changed files, failing output, decisions and branch state.

Install

/plugin install context-guardian@mod-garage

Use it

• Automatic once installed.

What you'll see (illustrative)

At 70%

Context is 70% full. Consider /compact or delegating.

At 85% (sent to the model)

Context is nearly full (85% or more). Wrap up the current step, then run /compact.

Notes

• Toast wording is illustrative.

After a turn that edited code, detects your project's fast checks (npm/pnpm/yarn/bun scripts for test, lint, typecheck; pytest, ruff, mypy/pyright via uv; make test) and runs them. Failures go back to the model so it fixes them, up to 3 retries. Docs, images and config edits are ignored.

Install

/plugin install verify-gate@mod-garage

Use it

• Automatic once installed. Needs a recognisable project (package.json, pyproject.toml or Makefile).

What you'll see (illustrative)

All green

verified

Gives up

verify-gate: still failing after 3 retries, giving up this turn

Short ;name shortcuts in a prompt expand to reusable instructions before Claude sees them. Ships with ;review ;tests ;plan ;explain ;short ;fix, and you can add your own.

Install

/plugin install prompt-snippets@mod-garage

Use it

• Type ;name anywhere at the start of a word in a prompt.
• /snippets lists everything available.
• Add your own with the extraSnippets option (a JSON object).

What you'll see (illustrative)

You type

refactor the parser ;plan ;short

Claude receives

refactor the parser Before editing anything, outline a short plan: the goal, the files you will touch and how you will verify it. Then proceed. Keep the answer under 5 lines. Results first, no preamble.

/snippets

;review  Review the current changes for correctness bugs, security issues and missed…
;tests   Write focused tests for the behaviour above, run them, and report the result…
;plan    Before editing anything, outline a short plan: the goal, the files you will touc…

Options

Set options when installing, or later in /plugin → the mod → configure. Notes

• Unknown names such as ;foo are left untouched.

Quietly records your prompts, shell commands run and files edited. /journal writes them to .claude/journal/<date-time>.md, grouped under each prompt with a files-changed summary. Good for handoffs, standups and PR descriptions.

Install

/plugin install session-journal@mod-garage

Use it

• /journal any time; run it again to refresh the same file.

What you'll see (illustrative)

/journal

Journal written to .claude/journal/2026-10-14-09-30.md (23 entries).

The file

# Session 2026-10-14 09:30

## 09:30 · fix the login redirect

- ran `npm test`
- edited `src/auth.ts`
- ran `npm test`

## Files changed

- `src/auth.ts` (×1)

Notes

• Add .claude/journal/ to .gitignore if you don't want to commit journals.
• Records are kept in memory (last 1000 entries), so a restart starts a fresh journal.

Keeps a shared roster of your running sessions (project, model, one-line AI summary of what each is doing). /live opens a pane with the roster, usage bars and a small pet; /peers lists other sessions; /tell sends one a message. Also asks before risky shell commands (force-delete, force-push, publishing) and chimes after turns longer than 30s.

Install

/plugin install session-deck@mod-garage

Use it

• /live opens the pane, /peers lists sessions, /tell <id-prefix> <text> messages one.
• The risky-command prompt and the chime are automatic.

What you'll see (illustrative)

/peers

a1b2c3d4  sonnet  /work/api   fixing token refresh bug
9f8e7d6c  opus    /work/web   reviewing checkout redesign

/tell 9f8e Please rebase on main

Sent to 9f8e7d6c

Risky command prompt

DESTRUCTIVE: force/recursive delete | run it? rm -rf src
  [Run it]  [Refuse]

Notes

• Sessions only see each other on the same machine and user.
• Install name: session-deck (the repo root is itself a plugin).

Tracks active time and, after a while, toasts and opens an animated ASCII coffee-break pane with a countdown and stretch tips.

Install

/plugin install break-time@mod-garage

Use it

• Automatic reminders.
• /break starts a break now, /break-skip snoozes 15 minutes, /break-done resets the timer.

What you'll see (illustrative)

Toast

Time for a coffee break. Run /break (or /break-skip to snooze).

Options

Set options when installing, or later in /plugin → the mod → configure.

Tiny text-mode games that run inside Claude Code. /doom is a raycaster with wandering enemies and a minimap; /snake is classic snake.

Install

/plugin install arcade@mod-garage

Use it

• /doom: WASD/arrows move, space shoots, q quits.
• /snake: WASD/arrows steer, r restarts, q quits.

What you'll see (illustrative)

/snake

┌──────────────┐
│              │
│   ████►   ●  │
│              │
└──────────────┘  score 3

Notes

• Doom needs a pane of at least 40x16; 80x30 or larger looks best.
• Keys only reach a game while its pane has focus. Esc closes it.
• Key presses move in steps (terminals give no key-up), so tap rather than hold.

Managing mods

Safety notes

• secret-guard fails closed: if the guard itself errors, the write or git command is blocked. loop-breaker fails open so a bug in it never stops your work.
• read-only-mode is a guardrail on the model's tool calls, not a sandbox.
• session-journal and auto-checkpoint write inside your project (.claude/journal/, checkpoints). Add them to .gitignore if you do not want them committed.
• Nothing in this repo makes network calls of its own, and no mod sends your prompts anywhere.

Troubleshooting

• Installed but nothing shows: run /reload-plugins, then /plugin and confirm it is enabled.
• Pane does not open: the terminal may be too narrow (panes dock from about 110 columns). Widen it and retry.
• Command not found: the slash command only exists once the mod is enabled and reloaded.
• Something looks wrong: claude plugin validate <path> reports problems with a mod's manifest or hooks, and claude --debug logs hook failures.

Develop

claude plugin validate dev-mods/<name>
claude plugin test dev-mods/<name>
python3 scripts/gen_docs.py     # regenerate these docs from scripts/gen_docs.py

Each mod keeps pure logic in lib.ts with unit tests and the hook wiring in register.ts(x). Test mods one folder at a time: running claude plugin test at the repo root also loads the root plugin's hooks into every nested test.

License

MIT