Borrowing it
Nothing to install: this file belongs to adeze/raindrop-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/adeze/raindrop-mcp/master/.github/skills/dxt-packaging/SKILL.mdgit clone --depth 1 https://github.com/adeze/raindrop-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/skills/adeze/raindrop-mcp/dxt-packaging)<a href="https://agentmods.dev/skills/adeze/raindrop-mcp/dxt-packaging"><img src="https://agentmods.dev/badge/skills/adeze/raindrop-mcp/dxt-packaging/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/adeze/raindrop-mcp/dxt-packaging"><img src="https://agentmods.dev/badge/skills/adeze/raindrop-mcp/dxt-packaging.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 | $0.00017 | $0.00481 |
| Opus 5.5 | $0.00007 | $0.00192 |
| Sonnet 5.5 | $0.00003 | $0.00096 |
| Haiku 4.5 | $0.00002 | $0.00048 |
Grade A, and why
dxt-packaging 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.
How it starts
The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MCPB Packaging Skill (DXT legacy)
Guidelines for building and packaging MCP servers as MCP Bundles (MCPB). DXT references are legacy.
Overview
MCP Bundles (MCPB) allow AI assistants to discover and use MCP servers from a package archive. This skill covers the complete MCPB development workflow.
Getting Started
Read the Specifications
- Architecture & Overview: https://github.com/anthropics/mcpb
- MCPB Repository: https://github.com/anthropics/mcpb
README.md- Architecture overview, capabilities, and integration patternsMANIFEST.md- Complete bundle manifest structure and field definitionsexamples/- Reference implementations including a "Hello World" example
Create Proper Bundle Structure
- Generate a valid
manifest.jsonfollowing the MANIFEST.md spec - Implement an MCP server using
@modelcontextprotocol/sdkwith proper tool definitions - Include proper error handling and timeout management
Development Best Practices
MCP Protocol Communication
- Implement proper MCP protocol communication via stdio transport
- Structure tools with clear schemas, validation, and consistent JSON responses
- Make use of the fact that this bundle will be running locally
Logging & Debugging
- Add appropriate logging and debugging capabilities
- Use structured logging for error tracking
- Include proper documentation and setup instructions
Testing Considerations
- Validate that all tool calls return properly structured responses
- Verify manifest loads correctly and host integration works
- Generate complete, production-ready code that can be immediately tested
- Focus on defensive programming and clear error messages
- Follow the exact MCPB specifications to ensure ecosystem compatibility
Key Files
- manifest.json - Bundle metadata and configuration
- src/index.ts - Main entry point for the MCP server
- build/ - Compiled output for distribution
References
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 · 64 lines · 17 tokens per session scan A 2f92270331b8
dxt-packaging is a skill published in the GitHub repository adeze/raindrop-mcp (189 stars, last pushed 10d ago), licensed MIT. It adds 17 tokens to every session and 481 once invoked, about $0.0001 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 2026-08-30.
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