Defuddle
kepano/obsidian-skills
Uses the Defuddle CLI to pull clean, readable Markdown, JSON or metadata from web pages, stripping navigation, ads and clutter to save tokens.
Automatically allocate and manage development server ports, avoiding port conflicts between multiple Claude Code instances
No licenceAuto-check passed
Install Port Allocator
$ npx skills add aiskillstore/marketplace --skill port-allocator -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace port-allocator --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/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/guo-yu/port-allocator .claude/skills/port-allocator && 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 "port-allocator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/guo-yu/port-allocator into .claude/skills/port-allocator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "port-allocator", 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/aiskillstore/marketplace/tree/main/skills/guo-yu/port-allocatorType 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 aiskillstore/marketplace --skill port-allocator -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace port-allocator --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/guo-yu/port-allocator .agents/skills/port-allocator && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "port-allocator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/guo-yu/port-allocator into .agents/skills/port-allocator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "port-allocator", 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 aiskillstore/marketplace --skill port-allocator -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace port-allocator --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/guo-yu/port-allocator .cursor/skills/port-allocator && 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 "port-allocator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/guo-yu/port-allocator into .cursor/skills/port-allocator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "port-allocator", 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/aiskillstore/marketplace.git --path skills/guo-yu/port-allocator--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 aiskillstore/marketplace --skill port-allocator -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace port-allocator --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/guo-yu/port-allocator .gemini/skills/port-allocator && 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 "port-allocator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/guo-yu/port-allocator into .gemini/skills/port-allocator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "port-allocator", 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 aiskillstore/marketplace port-allocatorInstalls 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 aiskillstore/marketplace --skill port-allocator -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/guo-yu/port-allocator .github/skills/port-allocator && 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 "port-allocator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/guo-yu/port-allocator into .github/skills/port-allocator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "port-allocator", 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 aiskillstore/marketplace --skill port-allocator -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiskillstore/marketplace port-allocator --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/guo-yu/port-allocator .opencode/skills/port-allocator && 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 "port-allocator" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/guo-yu/port-allocator into .opencode/skills/port-allocator/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "port-allocator", 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
port-allocator- GitHub stars
- 430
- Used in
- 1 other repo
- Token cost
- ~1.7k tokens
- SKILL.md length
- 503 words
- Files
- 6
- Skills in repo
- 1,108
- Repo updated
- First seen
- Licence
- None found
At a glance
Automatically allocate and manage development server ports, avoiding port conflicts between multiple Claude Code instances
- Works in 2 steps: Only Operate on Current Project's Ports… → Append Rather Than Overwrite When…
- SKILL.md covers Usage, Important Rules, Execution Steps and Output Format, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Port Allocator is an agent skill from aiskillstore/marketplace. Automatically allocate and manage development server ports, avoiding port conflicts between multiple Claude Code instances
Its SKILL.md is about 1.7k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files (for example `.claude-plugin/plugin.json`, `SKILL.ja.md` and `SKILL.zh-CN.md`).
It works with npm. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
Example prompts
- “/port-allocator”
Workflow steps
2 steps, taken from the step headings in SKILL.md.
- Only Operate on Current Project's Ports When Restarting Services
- Append Rather Than Overwrite When Updating CLAUDE.md
What it can do on your machine
Read from SKILL.md and the folder at commit ad8daf7. 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 (its code samples are bash and json).
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
Port Allocator loads about 1.7k tokens when it runs. Until then it costs about 34 tokens; SKILL.md has 503 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 503 words (~1,665 tokens).
“Smart port allocator that only assigns ports to real projects containing package.json.”
- name
- port-allocator
Files
SKILL.md and 5 other files in skills/guo-yu/port-allocator of aiskillstore/marketplace.
- SKILL.md
- .claude-plugin/plugin.json
- .gitignore
- SKILL.ja.md
- SKILL.zh-CN.md
- skill-report.json
Open the folder on GitHubat commit ad8daf7
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in aiskillstore/marketplace, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Port Allocator 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 |
|---|---|---|---|---|---|---|
| Port Allocator this skillaiskillstore/marketplace | 430 | 1 repos | ~1.7k | Automated safety check: Pass | None | |
| Defuddlekepano/obsidian-skills | 49k | 12 repos | ~208 | Automated safety check: Pass | MIT | |
| Vercel Deploybytedance/deer-flow | 83k | 10 repos | ~797 | Automated safety check: Pass | MIT | |
| MCP Server BuildershareAI-lab/learn-claude-code | 78k | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| Knap Markdown Templateskepano/obsidian-skills | 49k | 2 repos | ~986 | Automated safety check: Pass | MIT | |
| Install Anti-Slop Oxlint Rulesdmmulroy/anti-slop | 5.3k | 1 repos | ~2.2k | Automated safety check: Pass | MIT |
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Walks through building MCP servers in Python or TypeScript that expose tools, resources and prompts to Claude, with templates, registration and testing.
Knap Markdown Templates
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Renders Markdown notes from Knap templates and JSON data on the command line, including notes built from Defuddle web page output.
Install Anti-Slop Oxlint Rules
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Works with
Questions about Port Allocator
What does Port Allocator do?
Automatically allocate and manage development server ports, avoiding port conflicts between multiple Claude Code instances. Port Allocator is an agent skill from aiskillstore/marketplace.
How do I install Port Allocator in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill port-allocator -a claude-code`. Or copy the skill folder (skills/guo-yu/port-allocator in aiskillstore/marketplace) into .claude/skills/port-allocator in your project. Claude Code loads it when a task matches its description.
How do I install Port Allocator in Codex?
Run `npx skills add aiskillstore/marketplace --skill port-allocator -a codex`. Or copy the skill folder (skills/guo-yu/port-allocator in aiskillstore/marketplace) into .agents/skills/port-allocator in your project. Codex loads it when a task matches its description.
Can I use Port Allocator 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 aiskillstore/marketplace --skill port-allocator -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/port-allocator, .gemini/skills/port-allocator, .github/skills/port-allocator and .opencode/skills/port-allocator in your project.
What does Port Allocator need to run?
SKILL.md names no scripts, command-line tools or credentials: Port Allocator is instructions for the agent only.
Does Port Allocator 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 Port Allocator 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 Port Allocator use?
No licence was found for Port Allocator or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Port Allocator use?
About 1.7k tokens (SKILL.md is roughly 6.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Port Allocator?
Skills that share tags, products or a category with Port Allocator: Defuddle (kepano/obsidian-skills, 49k stars), Vercel Deploy (bytedance/deer-flow, 83k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars) and Knap Markdown Templates (kepano/obsidian-skills, 49k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Port Allocator?
aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.
Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.