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 skills add travisjneuman/.claude --skill generic-feature-developergit clone --depth 1 https://github.com/travisjneuman/.claudeWrote 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.
[](https://agentmods.dev/skills/travisjneuman/.claude/generic-feature-developer)<a href="https://agentmods.dev/skills/travisjneuman/.claude/generic-feature-developer"><img src="https://agentmods.dev/badge/skills/travisjneuman/.claude/generic-feature-developer/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.
<a href="https://agentmods.dev/skills/travisjneuman/.claude/generic-feature-developer"><img src="https://agentmods.dev/badge/skills/travisjneuman/.claude/generic-feature-developer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00041 | $0.01458 |
| Opus 5.5 | $0.00016 | $0.00583 |
| Sonnet 5.5 | $0.00008 | $0.00292 |
| Haiku 4.5 | $0.00004 | $0.00146 |
Grade A, and why
generic-feature-developer 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 8d 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 — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Generic Feature Developer
Guide feature development across any tech stack.
When to Use This Skill
Use for:
- Adding new features to existing codebase
- Modifying or extending current systems
- Planning architectural changes
- Choosing between implementation approaches
- Designing data flow for new functionality
Don't use when:
- Pure UI/styling work → use
generic-design-system - UX design decisions → use
generic-ux-designer - Code review → use
generic-code-reviewer
Development Workflow
- Understand - Read CLAUDE.md, identify affected files, list constraints
- Plan - Choose patterns, design data flow, identify edge cases
- Implement - Small reviewable changes, commit frequently
- Review & Document - Review the diff against edge cases and callers, update docs, performance check
Architecture by Project Type
Static Sites
project/
├── index.html
├── css/ # variables.css, style.css
├── js/ # main.js, utils.js
└── assets/
Patterns: CSS variables, ES modules, event delegation
React/Next.js
src/
├── components/ # ui/, features/, layout/
├── hooks/
├── stores/
├── services/
└── types/
Patterns: Container/Presentational, custom hooks, Zustand/React Query
NestJS Backend
src/
├── modules/[feature]/
│ ├── feature.module.ts
│ ├── feature.controller.ts
│ ├── feature.service.ts
│ └── dto/
└── common/ # guards, decorators
Patterns: Module organization, DTOs, Guards, Prisma
Feature Decision Framework
Scope Assessment (First)
| Scope | Action |
|---|---|
| Single component | Implement directly |
| Cross-cutting concern | Design interface first |
| New subsystem | Create architecture doc, get approval |
Build vs Integrate
| Factor | Build Custom | Use Library |
|---|---|---|
| Core to product | Yes | |
| Commodity feature | Yes | |
| Tight integration needed | Yes | |
| Time-critical | Yes | |
| Long-term ownership | Yes |
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.
- 8d ago Changed 746877e2d2c3
- 1mo ago Changed fdcbbf60a967
- 2mo ago First seen · 228 lines · 41 tokens per session scan A 053d2a59207d
generic-feature-developer is a skill published in the GitHub repository travisjneuman/.claude (108 stars, last pushed yesterday), licensed MIT. It adds 41 tokens to every session and 1,458 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 2026-09-03.
generic-feature-developer compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| generic-feature-developertravisjneuman/.claude | Skill | 108 | yesterday | MIT | A | 41 | Claude Code |
| imagegenopenai/codex | Skill | 135k | today | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 100k | today | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | 4d ago | MIT | A | 200 | Claude Code, Codex |
| systematic-debuggingobra/superpowers | Skill | 316k | 7d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |