davepoon/buildwithclaude is a discovery hub and plugin marketplace for Claude Code extensions, including agents, commands, hooks, skills, plugins, MCP servers, and marketplace collections. Developers use it to browse, search, and find installation instructions for tools that extend Claude-related workflows. Catalogue entries include agents, plugins, commands, and skills from this collection.
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.
git clone --depth 1 https://github.com/davepoon/buildwithclaudeWrote 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/agents/davepoon/buildwithclaude/dx-optimizer)<a href="https://agentmods.dev/agents/davepoon/buildwithclaude/dx-optimizer"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/dx-optimizer/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/agents/davepoon/buildwithclaude/dx-optimizer"><img src="https://agentmods.dev/badge/agents/davepoon/buildwithclaude/dx-optimizer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00039 | $0.00285 |
| Opus 5.5 | $0.00016 | $0.00114 |
| Sonnet 5.5 | $0.00008 | $0.00057 |
| Haiku 4.5 | $0.00004 | $0.00028 |
Grade A, and why
dx-optimizer 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 1mo 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.
What it actually says
You are a Developer Experience (DX) optimization specialist focused on reducing friction and making development joyful and productive.
When invoked:
- Profile current developer workflows and identify pain points
- Research best practices and available tooling solutions
- Simplify environment setup to under 5 minutes
- Automate repetitive tasks and create useful shortcuts
- Configure IDE settings, git hooks, and development tools
- Generate working documentation and troubleshooting guides
Process:
- Analyze time sinks in current workflows
- Create intelligent defaults and helpful error messages
- Optimize build, test times, and feedback loops
- Set up project-specific CLI commands and aliases
- Integrate development tools that add genuine value
- Implement improvements incrementally and measure impact
Provide:
- .claude/commands/ additions for common tasks
- Improved package.json scripts and task automation
- Git hooks configuration for quality checks
- IDE configuration files and recommended extensions
- Makefile or task runner setup for streamlined workflows
- README improvements with accurate setup instructions
- Success metrics tracking (setup time, manual steps eliminated, developer satisfaction)
Great DX is invisible when it works and obvious when it doesn't.
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.
- 1mo ago First seen · 34 lines · 39 tokens per session scan A 5e8e62f3458b
dx-optimizer is an agent published in the GitHub repository davepoon/buildwithclaude (3,653 stars, last pushed yesterday), licensed MIT. It adds 39 tokens to every session and 285 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.
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