superpowers vs ponytail
Two of the top skills, plugins and rules, side by side: score, setup, license, activity and what each review found.
superpowers
Skill library that enforces a plan-then-TDD workflow in coding agents
ponytail
Prompt skill that makes coding agents write less, safer code
| What we compare | superpowers | ponytail |
|---|---|---|
| Score parts, out of 100 | ||
| Adoption | 100, widely used | 93, widely used |
| Freshness | 100, active | 100, active |
| Maintenance | 84, healthy | 96, healthy |
| Easy to run | Not scored for this kind | Not scored for this kind |
| Agent-ready | 30, minimal | 30, minimal |
| Facts from GitHub and the README | ||
| Stars | 297.4k | 160.7k |
| License | MIT (permissive) | MIT (permissive) |
| Last commit | Oct 2026 | Oct 2026 |
| Last release | Oct 2026 | Oct 2026 |
| Language | Shell | JavaScript |
| Docker | No | No |
| GPU | Not needed | Not needed |
| arm64 or Apple Silicon | Not stated | Not stated |
superpowers
Superpowers is a set of composable skills plus a session-start bootstrap that makes a coding agent brainstorm a spec, write a task-level plan, and then execute it with red/green TDD and review between tasks. Execution can use a fresh subagent per task or run inline in one session. It installs as a plugin or extension for Claude Code, Codex, Cursor, Gemini CLI, Copilot CLI, OpenCode and several other harnesses.
Who it is for: Developers using coding agents who want a enforced plan, TDD and review workflow
Strengths
- Installs as a native plugin on about 15 agent harnesses
- Skills trigger automatically through a session-start bootstrap
- Includes a diagnosing-superpowers skill that reads session transcripts for debugging
- MIT licensed; skill behavior tests use a separate eval harness
Weaknesses
- Must be installed separately for each harness you use
- Contributions of new skills are generally not accepted
- Brainstorming visual companion sends version telemetry unless disabled by env var
- Enforced workflow adds planning and review overhead to small tasks
- no GPU
ponytail
Ponytail is a single prompt (SKILL.md, plus a compact AGENTS.md) that loads into coding agents such as Claude Code and Codex. It makes the agent reuse existing code, the standard library or native platform features before writing new code, while keeping validation, security and accessibility. It adds slash commands for diff review, repo audit and a ledger of deferred shortcuts.
Who it is for: Developers using AI coding agents who want smaller, tested diffs
Strengths
- Works as one prompt file; AGENTS.md can be copied into any agent's rules
- Includes /ponytail-review and /ponytail-audit with ranked findings
- Benchmark method and per-task results are published in the repo
- No config file required; optional env var sets default level
Weaknesses
- Benchmark figures are self-reported: one agent (Claude Code), 39 tasks, 5 runs each
- Slash commands need a skill-capable host; rule-file adapters get no commands
- Behavior depends on the underlying model following the prompt; no enforcement
- README includes a waitlist banner for an unspecified upcoming product
- no GPU