MCP Server Builder
anthropics/skills
Guides the design and implementation of Model Context Protocol servers in TypeScript or Python, from tool naming and error messages to evaluation.
Design SDKs that developers love to use—APIs that feel native, error messages that guide, and experiences that reduce friction.
MITAuto-check passed
Install SDK Dx
$ npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install sickn33/agentic-awesome-skills sdk-dx --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/sdk-dx .claude/skills/sdk-dx && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "sdk-dx" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/sdk-dx into .claude/skills/sdk-dx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sdk-dx", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/sdk-dxType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install sickn33/agentic-awesome-skills sdk-dx --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/sdk-dx .agents/skills/sdk-dx && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "sdk-dx" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/sdk-dx into .agents/skills/sdk-dx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sdk-dx", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install sickn33/agentic-awesome-skills sdk-dx --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/sdk-dx .cursor/skills/sdk-dx && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "sdk-dx" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/sdk-dx into .cursor/skills/sdk-dx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sdk-dx", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/sickn33/agentic-awesome-skills.git --path skills/sdk-dx--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install sickn33/agentic-awesome-skills sdk-dx --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/sdk-dx .gemini/skills/sdk-dx && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "sdk-dx" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/sdk-dx into .gemini/skills/sdk-dx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sdk-dx", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install sickn33/agentic-awesome-skills sdk-dxInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/sdk-dx .github/skills/sdk-dx && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "sdk-dx" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/sdk-dx into .github/skills/sdk-dx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sdk-dx", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install sickn33/agentic-awesome-skills sdk-dx --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/sdk-dx .opencode/skills/sdk-dx && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "sdk-dx" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/sdk-dx into .opencode/skills/sdk-dx/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "sdk-dx", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
sdk-dx- GitHub stars
- 47k
- Used in
- 1 other repo
- Token cost
- ~472 tokens
- SKILL.md length
- 181 words
- Files
- 3 (incl. references)
- Skills in repo
- 1,493
- Repo updated
- First seen
- Licence
- MIT
At a glance
Design SDKs that developers love to use—APIs that feel native, error messages that guide, and experiences that reduce friction.
- SKILL.md covers Detailed Guide, When to Use and Limitations
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
SDK Dx is an agent skill from sickn33/agentic-awesome-skills. Design SDKs that developers love to use—APIs that feel native, error messages that guide, and experiences that reduce friction. This skill covers creating SDKs that drive adoption through exceptional developer experience rather than aggressive marketing.
Its SKILL.md is about 470 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including reference files (for example `README.md` and `references/detailed-guide.md`).
The repository describes itself as: AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes… The licence is MIT.
Example prompts
- “/sdk-dx”
What it can do on your machine
Read from SKILL.md and the folder at commit 680176d. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
SDK Dx loads about 472 tokens when it runs, and up to ~3.7k if it reads all its reference files. Until then it costs about 65 tokens; SKILL.md has 181 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from sickn33/agentic-awesome-skills at commit 680176d, republished under its MIT licence (© sickn33). 181 words, ~472 tokens.
Download SKILL.mdSave it as
.claude/skills/sdk-dx/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- sdk-dx
- description
- Design SDKs that developers love to use—APIs that feel native, error messages that guide, and experiences that reduce friction. This skill covers creating SDKs that drive adoption through exceptional developer experience rather than aggressive marketing.
- risk
- critical
- source
- https://github.com/jonathimer/devmarketing-skills/tree/main/skills/sdk-dx
- source_repo
- jonathimer/devmarketing-skills
- source_type
- community
- date_added
- 2026-07-01
- license
- MIT
- license_source
- https://github.com/jonathimer/devmarketing-skills/blob/main/LICENSE
SDK Design and Developer Experience
Detailed Guide
Read the detailed guide before executing this skill. It retains the complete procedure and reference material. Treat its safety, prerequisites, and validation requirements as mandatory. For focused work, load the relevant sections; for end-to-end work, read the guide completely.
When to Use
Use this skill when you need design SDKs that developers love to use—APIs that feel native, error messages that guide, and experiences that reduce friction. This skill covers creating SDKs that drive adoption through exceptional developer experience rather than aggressive marketing. Trigger phrases: "SDK design",...
The best SDK marketing is an SDK that developers can't stop talking about. When your SDK makes developers feel productive and competent, they become your advocates. When it frustrates them, no amount of marketing will save you.
Limitations
- Use this skill only when the task clearly matches its upstream source and local project context.
- Verify commands, generated code, dependencies, credentials, and external service behavior before applying changes.
- Do not treat examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions.
© sickn33, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files (references) in skills/sdk-dx of sickn33/agentic-awesome-skills.
- SKILL.md
- README.md
- references/detailed-guide.md
Open the folder on GitHubat commit 680176d
Used in 1 other repository
We found 5 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in sickn33/agentic-awesome-skills, which our catalogue first saw on October 7, 2026.
Compare with similar skills
SDK Dx next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| SDK Dx this skillsickn33/agentic-awesome-skills | 47k | 1 repos | ~472 | Automated safety check: Pass | MIT | |
| MCP Server Builderanthropics/skills | 180k | 63 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Vercel Composition Patternssupabase/supabase | 111k | 58 repos | ~726 | Automated safety check: Pass | MIT | |
| Finishing a Development Branchobra/superpowers | 297k | 5 repos | ~1.9k | Automated safety check: Pass | MIT | |
| Agent Browser CLIvercel-labs/agent-browser | 44k | 24 repos | ~864 | Automated safety check: Pass | Apache-2.0 | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 38k | 10 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 |
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Finishing a Development Branch
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Walks the last step of a branch: confirm tests pass, detect the git environment, ask how to integrate, carry out your choice and clean up the worktree.
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Questions about SDK Dx
What does SDK Dx do?
Design SDKs that developers love to use—APIs that feel native, error messages that guide, and experiences that reduce friction. SDK Dx is an agent skill from sickn33/agentic-awesome-skills. Design SDKs that developers love to use—APIs that feel native, error messages that guide, and experiences that reduce friction.
How do I install SDK Dx in Claude Code?
Run `npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a claude-code`. Or copy the skill folder (skills/sdk-dx in sickn33/agentic-awesome-skills) into .claude/skills/sdk-dx in your project. Claude Code loads it when a task matches its description.
How do I install SDK Dx in Codex?
Run `npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a codex`. Or copy the skill folder (skills/sdk-dx in sickn33/agentic-awesome-skills) into .agents/skills/sdk-dx in your project. Codex loads it when a task matches its description.
Can I use SDK Dx in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add sickn33/agentic-awesome-skills --skill sdk-dx -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sdk-dx, .gemini/skills/sdk-dx, .github/skills/sdk-dx and .opencode/skills/sdk-dx in your project.
What does SDK Dx need to run?
SKILL.md names no scripts, command-line tools or credentials: SDK Dx is instructions for the agent only.
Does SDK Dx access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is SDK Dx safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does SDK Dx use?
SDK Dx is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does SDK Dx use?
About 472 tokens (SKILL.md is roughly 1.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.2k tokens, read only when the agent opens those files.
What are the alternatives to SDK Dx?
Skills that share tags, products or a category with SDK Dx: MCP Server Builder (anthropics/skills, 180k stars), Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars) and Agent Browser CLI (vercel-labs/agent-browser, 44k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains SDK Dx?
sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,379 GitHub stars. The repository holds 1,493 skills in this directory. The repository was last updated on October 9, 2026.
Source: sickn33/agentic-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.