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.
Add or update an MCP tool in the mcp-linear repository. An agent skill from tacticlaunch/mcp-linear.
Install Add MCP Tool
$ npx skills add tacticlaunch/mcp-linear --skill add-mcp-tool -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install tacticlaunch/mcp-linear add-mcp-tool --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/tacticlaunch/mcp-linear.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/add-mcp-tool .claude/skills/add-mcp-tool && 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 "add-mcp-tool" agent skill from https://github.com/tacticlaunch/mcp-linear/tree/main/.github/skills/add-mcp-tool into .claude/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", 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/tacticlaunch/mcp-linear/tree/main/.github/skills/add-mcp-toolType 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 tacticlaunch/mcp-linear --skill add-mcp-tool -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install tacticlaunch/mcp-linear add-mcp-tool --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tacticlaunch/mcp-linear.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.github/skills/add-mcp-tool .agents/skills/add-mcp-tool && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "add-mcp-tool" agent skill from https://github.com/tacticlaunch/mcp-linear/tree/main/.github/skills/add-mcp-tool into .agents/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", 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 tacticlaunch/mcp-linear --skill add-mcp-tool -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install tacticlaunch/mcp-linear add-mcp-tool --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tacticlaunch/mcp-linear.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.github/skills/add-mcp-tool .cursor/skills/add-mcp-tool && 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 "add-mcp-tool" agent skill from https://github.com/tacticlaunch/mcp-linear/tree/main/.github/skills/add-mcp-tool into .cursor/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", 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/tacticlaunch/mcp-linear.git --path .github/skills/add-mcp-tool--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 tacticlaunch/mcp-linear --skill add-mcp-tool -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install tacticlaunch/mcp-linear add-mcp-tool --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tacticlaunch/mcp-linear.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.github/skills/add-mcp-tool .gemini/skills/add-mcp-tool && 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 "add-mcp-tool" agent skill from https://github.com/tacticlaunch/mcp-linear/tree/main/.github/skills/add-mcp-tool into .gemini/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", 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 tacticlaunch/mcp-linear add-mcp-toolInstalls 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 tacticlaunch/mcp-linear --skill add-mcp-tool -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/tacticlaunch/mcp-linear.git skills-src && mkdir -p .github/skills && cp -r skills-src/.github/skills/add-mcp-tool .github/skills/add-mcp-tool && 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 "add-mcp-tool" agent skill from https://github.com/tacticlaunch/mcp-linear/tree/main/.github/skills/add-mcp-tool into .github/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", 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 tacticlaunch/mcp-linear --skill add-mcp-tool -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install tacticlaunch/mcp-linear add-mcp-tool --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/tacticlaunch/mcp-linear.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.github/skills/add-mcp-tool .opencode/skills/add-mcp-tool && 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 "add-mcp-tool" agent skill from https://github.com/tacticlaunch/mcp-linear/tree/main/.github/skills/add-mcp-tool into .opencode/skills/add-mcp-tool/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-mcp-tool", 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
add-mcp-tool- GitHub stars
- 147
- Token cost
- ~347 tokens
- SKILL.md length
- 168 words
- Files
- 1
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- MIT
At a glance
Add or update an MCP tool in the mcp-linear repository. An agent skill from tacticlaunch/mcp-linear.
- Works in 11 steps: Inspect the existing domain files under… → Check whether the capability already… → Inspect @linear/sdk before writing new… → …
- Tasks that involve MCP servers
- SKILL.md covers Goal, Workflow and Project-specific reminders
- Calls npm
What it does
Add MCP Tool is an agent skill from tacticlaunch/mcp-linear. Add or update an MCP tool in the mcp-linear repository. Use this when implementing new Linear capabilities or exposing an existing service method through the MCP surface.
Its SKILL.md is about 350 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering MCP servers. It works with Model Context Protocol. The repository describes itself as: MCP server that enables AI assistants to interact with Linear project management system through natural language, allowing users to retrieve, create, and update issues, projects… The licence is MIT.
When your agent uses it
- Tasks that involve MCP servers
Example prompts
- “/add-mcp-tool”
Workflow steps
11 steps, taken from the first numbered list in SKILL.md.
- Inspect the existing domain files under src/tools/definitions, src/tools/handlers, and src/services/linear-service.ts to find the closest…
- Check whether the capability already exists in LinearService.
- Inspect @linear/sdk before writing new GraphQL.
- Implement or update the service method so it returns normalized plain objects.
- Add or update the tool definition with explicit required fields, enums, nullability, and numeric constraints.
- Add or update the handler so it validates, delegates, and logs failures.
- Add or update the type guard in src/tools/type-guards.ts.
- Register the tool in both index files.
- Update TOOLS.md.
- Add focused tests in src/tests.
- Run npm test and npm run build.
What it can do on your machine
Read from SKILL.md and the folder at commit cde0c4f. 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
Shell commands in SKILL.md call:
npm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use npm, which can reach the network depending on how they are called.
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
Add MCP Tool loads about 347 tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 168 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 tacticlaunch/mcp-linear at commit cde0c4f, republished under its MIT licence (© tacticlaunch). 168 words, ~347 tokens.
Download SKILL.mdSave it as
.claude/skills/add-mcp-tool/SKILL.md (or your agent's skills folder).- name
- add-mcp-tool
- description
- Add or update an MCP tool in the mcp-linear repository. Use this when implementing new Linear capabilities or exposing an existing service method through the MCP surface.
Use this workflow when adding a tool to mcp-linear.
Goal
Implement a Linear capability end-to-end so the MCP surface, runtime behavior, and docs stay aligned.
Workflow
- Inspect the existing domain files under
src/tools/definitions,src/tools/handlers, andsrc/services/linear-service.tsto find the closest pattern. - Check whether the capability already exists in
LinearService. - Inspect
@linear/sdkbefore writing new GraphQL. - Implement or update the service method so it returns normalized plain objects.
- Add or update the tool definition with explicit required fields, enums, nullability, and numeric constraints.
- Add or update the handler so it validates, delegates, and logs failures.
- Add or update the type guard in
src/tools/type-guards.ts. - Register the tool in both index files.
- Update
TOOLS.md. - Add focused tests in
src/__tests__. - Run
npm testandnpm run build.
Project-specific reminders
- Prefer SDK methods first.
- If you use direct GraphQL because the SDK is stale or missing support, document why.
- Keep handlers thin.
- Be exact about nullable update semantics and output schema fidelity.
© tacticlaunch, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .github/skills/add-mcp-tool of tacticlaunch/mcp-linear.
Open the folder on GitHubat commit cde0c4f
Compare with similar skills
Add MCP Tool 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 |
|---|---|---|---|---|---|---|
| Add MCP Tool this skilltacticlaunch/mcp-linear | 147 | — | ~347 | Automated safety check: Pass | MIT | |
| MCP Server Builderanthropics/skills | 180k | 64 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| MCP Server BuildershareAI-lab/learn-claude-code | 78k | 5 repos | ~1.2k | Automated safety check: Pass | MIT | |
| MCP Integration for Pluginsanthropics/claude-plugins-official | 38k | 11 repos | ~3.1k | Automated safety check: Pass | Apache-2.0 | |
| Fastmcp Client CLIPrefectHQ/fastmcp | 28k | 1 repos | ~823 | Automated safety check: Pass | Apache-2.0 | |
| Crush Configurationcharmbracelet/crush | 29k | — | ~3.7k | Automated safety check: Pass | Custom licence |
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Related
Works with
Categories
Questions about Add MCP Tool
What does Add MCP Tool do?
Add or update an MCP tool in the mcp-linear repository. An agent skill from tacticlaunch/mcp-linear. Add MCP Tool is an agent skill from tacticlaunch/mcp-linear. Add or update an MCP tool in the mcp-linear repository.
When should I use Add MCP Tool?
Add MCP Tool fits situations like: tasks that involve MCP servers.
How do I install Add MCP Tool in Claude Code?
Run `npx skills add tacticlaunch/mcp-linear --skill add-mcp-tool -a claude-code`. Or copy the skill folder (.github/skills/add-mcp-tool in tacticlaunch/mcp-linear) into .claude/skills/add-mcp-tool in your project. Claude Code loads it when a task matches its description.
How do I install Add MCP Tool in Codex?
Run `npx skills add tacticlaunch/mcp-linear --skill add-mcp-tool -a codex`. Or copy the skill folder (.github/skills/add-mcp-tool in tacticlaunch/mcp-linear) into .agents/skills/add-mcp-tool in your project. Codex loads it when a task matches its description.
Can I use Add MCP Tool 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 tacticlaunch/mcp-linear --skill add-mcp-tool -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-mcp-tool, .gemini/skills/add-mcp-tool, .github/skills/add-mcp-tool and .opencode/skills/add-mcp-tool in your project.
What does Add MCP Tool need to run?
Going by SKILL.md and its folder, Add MCP Tool needs the command-line tools its instructions call (npm).
Does Add MCP Tool access the network?
SKILL.md contains no URLs. Its commands use npm, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Add MCP Tool 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 Add MCP Tool use?
Add MCP Tool is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Add MCP Tool use?
About 347 tokens (SKILL.md is roughly 1.4k 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 Add MCP Tool?
Skills that share tags, products or a category with Add MCP Tool: MCP Server Builder (anthropics/skills, 180k stars), MCP Server Builder (shareAI-lab/learn-claude-code, 78k stars), MCP Integration for Plugins (anthropics/claude-plugins-official, 38k stars) and Fastmcp Client CLI (PrefectHQ/fastmcp, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Add MCP Tool?
tacticlaunch (a GitHub organization) maintains it in tacticlaunch/mcp-linear, which has 147 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on October 4, 2026.
Source: tacticlaunch/mcp-linear on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.