superpowers

superpowers is a skill for Claude Code, Codex from oleg494/coding-kit. It costs 50 tokens per session (1,198 once invoked), scanned A, original, MIT.

A step-by-step development method that plans work, writes a failing test, implements the smallest change, verifies the result, and reports what happened. TDD, or test-driven development, means writing the test before the code.

In plain words
What is it for?
Use it for any non-trivial feature, bug fix, multi-file change, or development task that needs tests and verification.
Why use it?
It makes the intended result clear and provides evidence that changes work, especially when fixing bugs or coordinating larger tasks.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it for any non-trivial feature, bug fix, multi-file change, or development task that needs tests and verification.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/oleg494/coding-kit/superpowers
Install

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.

Any agent
npx skills add oleg494/coding-kit --skill superpowers
Clone the repo
git clone --depth 1 https://github.com/oleg494/coding-kit

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for superpowers

README.md
[![agentmods](https://agentmods.dev/badge/skills/oleg494/coding-kit/superpowers/github.svg)](https://agentmods.dev/skills/oleg494/coding-kit/superpowers)
Your own site
<a href="https://agentmods.dev/skills/oleg494/coding-kit/superpowers"><img src="https://agentmods.dev/badge/skills/oleg494/coding-kit/superpowers/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for superpowers

Your own site · 80×15
<a href="https://agentmods.dev/skills/oleg494/coding-kit/superpowers"><img src="https://agentmods.dev/badge/skills/oleg494/coding-kit/superpowers.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,198 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.01198
Opus 5.5 $0.00020 $0.00479
Sonnet 5.5 $0.00010 $0.00240
Haiku 4.5 $0.00005 $0.00120

Measured 2d ago against content hash b9edbb2896bc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

superpowers scanned grade A with 0 findings 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/superpowers/SKILL.md · 122 lines

How it starts

The opening of the file, as written. The whole thing — 122 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Superpowers — main development method

The core method lives in OPS §§2–3; load this skill when phase detail resolves an open question. Scale the cycle to the task's scope and risk.

The Cycle

PLAN ──→ TDD ──→ IMPLEMENT ──→ VERIFY ──→ REPORT
  │        │         │            │          │
  ▼        ▼         ▼            ▼          ▼
Spec    Red test  Green code   Evidence    Outcome
first   first     minimal      observed    first

Phase skills (obra accretion)

Kit v2: each phase has a granular skill helper. A phase is not replaced, but deepened:

  • PLAN → brainstorming (design questions, spec), writing-plans (execution plan)
  • IMPLEMENT → dispatching-parallel-agents (parallel slices), per-plan implementation with checkpoints
  • VERIFY → verification-before-completion (applicable evidence for the current state), requesting-code-review, fable-judge (adversarial)
  • Debug → systematic-debugging
  • Git → using-git-worktrees, finishing-a-development-branch

These are pointers, not a load order. A helper loads for an unresolved question in its domain (a real design question, a verification-honesty problem, a debugging unknown) — never merely because a phase named it, and never cascaded: loading one helper does not pull the others. The host's mandatory skill policy always wins over this thrift.

Phase 1: PLAN

Formulate what "done" means — concrete, observable.

  • What should be true when the task is done?
  • Which files do you touch? Which do you NOT touch?
  • What assumptions do you make?
  • Split by independently verifiable outcomes and shared interfaces, not file or step counts.

Scope discipline: touch only what the task requires. Not "I'll clean up along the way".

Phase 2: TDD

Red test → green code → refactoring.

  • Define an observable check before changing behavior; for a bug, reproduce the failure where reproduction is needed for diagnosis or regression defense — a user-reported failure is ground truth for the symptom, and prior failure evidence valid for the unchanged state counts.
  • Test names express consumer rules, not implementation details. Keep a permanent regression only where a plausible bug would fail it; a throwaway probe or rendered UI interaction can provide the appropriate proof.
  • A test verifies behavior, not implementation.

Read the full file on GitHub · 122 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

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.

  1. 2d ago Changed · +2 lines b9edbb2896bc
  2. 8d ago Changed · +4 tokens per session b01d90b34775
  3. 11d ago Changed · +6 lines c3f93eced706
  4. 25d ago Changed 6e356546d156
  5. 26d ago Changed a6728e03e552
  6. 1mo ago Changed de4df6db8d79
  7. 1mo ago Changed · -1 lines · -24 tokens per session 9d1295e3ccbb
  8. 1mo ago Changed 5316328e5db9
  9. 1mo ago Changed 4cbf15d5300a
  10. 1mo ago First seen · 115 lines · 70 tokens per session scan A 260a952a33cb

Subscribe to this mod's changes

superpowers is a skill published in the GitHub repository oleg494/coding-kit (3 stars, last pushed 2d ago), licensed MIT. It adds 50 tokens to every session and 1,198 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.