Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/slopus/happy/devnpx skills add slopus/happy --skill devgit clone --depth 1 https://github.com/slopus/happyWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00067 | $0.01894 |
| Opus 5 | $0.00034 | $0.00947 |
| Sonnet 5 | $0.00013 | $0.00379 |
| Haiku 4.5 | $0.00007 | $0.00189 |
Grade C, and why
dev scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
build # rm -rf dist && tsc --noEmit && pkgroll How it starts
The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/dev - Local Development
Happy is a pnpm monorepo. Everything uses pnpm workspaces — do not use npm or yarn directly.
First-time setup
pnpm install # installs deps for every package
pnpm --filter happy cli:install # builds happy-cli + links it as the global `happy` binary
cli:install replaces whatever happy is on your PATH (npm-installed or not) with a symlink to packages/happy-cli/. Daemon is restarted as part of the script. Uses ~/.happy/ — same as production.
To undo: npm unlink -g happy && npm i -g happy@latest.
Packages
packages/happy-cli # the `happy` CLI and daemon, published to npm
packages/happy-server # Node + Prisma server, deployed via TeamCity
packages/happy-app # Expo app: iOS, Android, web, Tauri desktop
packages/happy-agent # agent runtime
packages/happy-wire # shared Zod schemas + wire types
happy-cli
packages/happy-cli
scripts in package.json:
typecheck # tsc --noEmit
build # rm -rf dist && tsc --noEmit && pkgroll
test # build + vitest run
cli:install # build + stop daemon + npm link + start daemon
prepublishOnly # pnpm test (runs build inside test)
postinstall # unpacks difft + rg binaries into tools/unpacked/
Work loop:
pnpm --filter happy cli:install # rebuild + relink + restart daemon
happy daemon status # confirm your build is running
happy doctor # list all happy processes
tail -f ~/.happy/logs/$(ls -t ~/.happy/logs/ | head -1)
Run a single test file quickly:
pnpm --filter happy exec vitest run src/path/to/file.test.ts
Unit-only (fast, ~1 min):
pnpm --filter happy exec vitest run --project unit
Integration tests hit real APIs and are flaky — run on demand, never in the release gate.
Dev data sandbox (optional)
happy reads HAPPY_HOME_DIR to override ~/.happy/. To run two versions side-by-side without touching your prod auth:
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2d ago First seen · 185 lines · 67 tokens per session scan C 2a32c638df29
dev is a skill published in the GitHub repository slopus/happy (23,553 stars, last pushed 4d ago), licensed MIT. It adds 67 tokens to every session and 1,894 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
pda-reframing
Rephrase tasks and requests by avoiding Demand Avoidance triggers for someone with PDA autism spectrum disorder. It transforms demands into exploration and autonomous actions.
code-review
Deep code review of PR or materialized candidate-patch changes for correctness, safety, and MAUI conventions. Uses independence-first assessment (code before narrative) and delegates to the maui-expert-reviewer agent for per-dimension sub-agent evaluation. Triggers on: "review code for PR", "code review PR", "review…
dependency-flow
MAUI-specific dependency flow rules, channel conventions, and feed lookup workflows. Use when asked about darc, BAR, Maestro, feeds for .NET MAUI, build promotion, asset lookup, channel mappings, or dependency flow for dotnet/maui. Wraps the maestro-cli skill and maestro MCP tools with MAUI-specific guardrails.
pr-review
End-to-end PR reviewer for dotnet/maui. Orchestrates 3 phases — Pre-Flight, Try-Fix, Report. Gate runs separately before this skill. Use when asked to 'review PR #XXXXX', 'work on PR #XXXXX', or 'fix issue #XXXXX'.
run-integration-tests
Build, pack, and run .NET MAUI integration tests locally. Validates templates, samples, and end-to-end scenarios using the local workload.
run-helix-tests
Submit and monitor .NET MAUI unit tests on Helix infrastructure. Supports running XAML, Resizetizer, Core, Essentials, and other unit test projects on distributed Helix queues.