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/pixel-process-ug/superkit-agents/agent-developmentnpx skills add Pixel-Process-UG/superkit-agents --skill agent-developmentgit clone --depth 1 https://github.com/Pixel-Process-UG/superkit-agentsWhat 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 | $0.00071 | $0.02437 |
| Opus 5 | $0.00036 | $0.01218 |
| Sonnet 5 | $0.00014 | $0.00487 |
| Haiku 4.5 | $0.00007 | $0.00244 |
Grade A, and why
agent-development 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.
How it starts
The opening of the file, as written. The whole thing — 313 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent Development
Overview
Design and build AI agents that effectively use tools, manage memory, plan multi-step tasks, coordinate with other agents, and operate within safety guardrails. This skill covers the full agent development lifecycle from architecture through evaluation, with emphasis on observable, testable, and safe agent behavior.
Phase 1: Agent Design
- Define the agent's purpose and scope
- Identify required tools and capabilities
- Design memory architecture (short-term, long-term)
- Plan agent loop structure (observe, think, act)
- Define safety boundaries and guardrails
STOP — Present agent design to user for approval before implementation.
Agent Architecture Decision Table
| Agent Type | When to Use | Loop Pattern | Complexity |
|---|---|---|---|
| Single-turn tool user | Simple queries with tool calls | Request -> Tool -> Response | Low |
| ReAct agent | Multi-step reasoning tasks | Thought -> Action -> Observation -> loop | Medium |
| Plan-and-execute | Complex tasks with dependencies | Plan -> Execute steps -> Validate | Medium-High |
| Multi-agent orchestrator | Parallel/specialized sub-tasks | Dispatch -> Collect -> Synthesize | High |
| Autonomous loop (Ralph-style) | Long-running iterative development | Plan -> Build -> Verify -> Exit gate | High |
Phase 2: Implementation
- Build the agent loop with tool dispatch
- Implement memory management (context window, persistence)
- Add planning and decomposition logic
- Integrate error recovery and retry patterns
- Implement output validation
STOP — Run smoke tests on the agent loop before adding complexity.
Tool Use Patterns
Tool Definition Best Practices
| Principle | Rule | Example |
|---|---|---|
| Clear naming | verb-noun format | search_documents, create_file |
| Detailed descriptions | Include when to use AND when NOT to use | "Use for keyword search. Do NOT use for semantic similarity." |
| Well-typed parameters | Descriptions and examples on every param | query: string // "e.g., 'user authentication'" |
| Predictable returns | Consistent format across tools | Always return { success, data, error } |
| Self-correcting errors | Help agent recover | "Invalid date format. Expected ISO 8601: YYYY-MM-DD" |
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 · 313 lines · 71 tokens per session scan A 4a5656d6d471
agent-development is a skill published in the GitHub repository Pixel-Process-UG/superkit-agents (1 stars, last pushed 5mo ago), licensed MIT. It adds 71 tokens to every session and 2,437 once invoked, about $0.0004 per session on Opus 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.
Other skills, from other repositories
test-driven-development
Drives development with tests. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality.
ci-cd-and-automation
Automates CI/CD pipeline setup. Use when setting up or modifying build and deployment pipelines. Use when you need to automate quality gates, configure test runners in CI, or establish deployment strategies.
documentation-and-adrs
Records decisions and documentation. Use when making architectural decisions, changing public APIs, shipping features, or when you need to record context that future engineers and agents will need to understand the codebase.
idea-refine
Refines raw ideas into sharp, actionable concepts through structured divergent and convergent thinking. Use when an idea is still vague, when you need to stress-test assumptions before committing to a plan, or when you want to expand options before converging on one. Triggers on "ideate", "refine this idea", or…
source-driven-development
Grounds every implementation decision in official documentation. Use when you want authoritative, source-cited code free from outdated patterns. Use when building with any framework or library where correctness matters.
chinese-documentation
中文文档排版参考——中英文空格、全半角标点、术语保留、链接格式、中文文案排版指北约定。仅在用户显式 /chinese-documentation 时调用，不要根据上下文自动触发。.