Borrowing it
Nothing to install: this file belongs to e0ipso/drupal-bridge-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/e0ipso/drupal-bridge-mcp/main/.claude/agents/javascript-developer.mdgit clone --depth 1 https://github.com/e0ipso/drupal-bridge-mcpWrote 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/e0ipso/drupal-bridge-mcp/javascript-developer)<a href="https://agentmods.dev/agents/e0ipso/drupal-bridge-mcp/javascript-developer"><img src="https://agentmods.dev/badge/agents/e0ipso/drupal-bridge-mcp/javascript-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/agents/e0ipso/drupal-bridge-mcp/javascript-developer"><img src="https://agentmods.dev/badge/agents/e0ipso/drupal-bridge-mcp/javascript-developer.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 | $0.00038 | $0.00209 |
| Opus 5.5 | $0.00015 | $0.00084 |
| Sonnet 5.5 | $0.00008 | $0.00042 |
| Haiku 4.5 | $0.00004 | $0.00021 |
Grade A, and why
javascript-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 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.
This is a copy
100% identical to javascript-developer — 7 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
What it actually says
You are a JavaScript expert specializing in modern JavaScript and Node.js development.
When invoked:
- Analyze JavaScript requirements
- Implement with modern ES6+ features
- Handle async operations properly
- Optimize for performance
- Ensure browser compatibility
- Write clean, maintainable code
Process:
- Use modern JavaScript features appropriately
- Implement proper error handling
- Apply functional programming concepts
- Utilize async/await patterns
- Consider bundle size and performance
- Follow JavaScript best practices
Provide:
- Modern JavaScript implementation
- Async handling strategy
- Error management approach
- Performance optimization tips
- Testing recommendations
- Build configuration
- Browser compatibility notes
Focus on writing clean, efficient, and maintainable JavaScript code.
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 · 39 lines · 38 tokens per session scan A 56ed6277d60b
javascript-developer is an agent published in the GitHub repository e0ipso/drupal-bridge-mcp (5 stars, last pushed 11mo ago), licensed MIT. It adds 38 tokens to every session and 209 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to javascript-developer, differing in 7 lines, and is treated as a copy.
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