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 systematic decision frameworks for selecting appropriate AI tools (Claude Code vs Gemini CLI) based on context requirements, codebase size, reasoning depth needs, and task complexity.
Install Tool Selection Framework
$ npx skills add aiskillstore/marketplace --skill tool-selection-framework -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiskillstore/marketplace tool-selection-framework --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/92bilal26/tool-selection-framework .claude/skills/tool-selection-framework && 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 "tool-selection-framework" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/92bilal26/tool-selection-framework into .claude/skills/tool-selection-framework/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tool-selection-framework", 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/92bilal26/tool-selection-frameworkType 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 tool-selection-framework -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiskillstore/marketplace tool-selection-framework --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/92bilal26/tool-selection-framework .agents/skills/tool-selection-framework && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tool-selection-framework" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/92bilal26/tool-selection-framework into .agents/skills/tool-selection-framework/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tool-selection-framework", 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 tool-selection-framework -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiskillstore/marketplace tool-selection-framework --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/92bilal26/tool-selection-framework .cursor/skills/tool-selection-framework && 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 "tool-selection-framework" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/92bilal26/tool-selection-framework into .cursor/skills/tool-selection-framework/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tool-selection-framework", 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/92bilal26/tool-selection-framework--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 tool-selection-framework -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiskillstore/marketplace tool-selection-framework --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/92bilal26/tool-selection-framework .gemini/skills/tool-selection-framework && 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 "tool-selection-framework" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/92bilal26/tool-selection-framework into .gemini/skills/tool-selection-framework/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tool-selection-framework", 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 tool-selection-frameworkInstalls 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 tool-selection-framework -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/92bilal26/tool-selection-framework .github/skills/tool-selection-framework && 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 "tool-selection-framework" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/92bilal26/tool-selection-framework into .github/skills/tool-selection-framework/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tool-selection-framework", 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 tool-selection-framework -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 tool-selection-framework --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/92bilal26/tool-selection-framework .opencode/skills/tool-selection-framework && 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 "tool-selection-framework" agent skill from https://github.com/aiskillstore/marketplace/tree/main/skills/92bilal26/tool-selection-framework into .opencode/skills/tool-selection-framework/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tool-selection-framework", 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
tool-selection-framework- GitHub stars
- 430
- Used in
- 1 other repo
- Token cost
- ~6.2k tokens
- SKILL.md length
- 2,045 words
- Files
- 2
- Skills in repo
- 1,108
- Repo updated
- First seen
- Licence
- None found
At a glance
Design systematic decision frameworks for selecting appropriate AI tools (Claude Code vs Gemini CLI) based on context requirements, codebase size, reasoning depth needs, and task complexity.
- Works in 2 steps: Phase 1: Gemini (Exploration) → Phase 2: Claude Code (Implementation)
- Starting projects with unclear tool requirements
- SKILL.md covers Purpose, When to Activate, Persona and Questions (Analysis Framework), plus 6 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Tool Selection Framework is an agent skill from aiskillstore/marketplace. Design systematic decision frameworks for selecting appropriate AI tools (Claude Code vs Gemini CLI) based on context requirements, codebase size, reasoning depth needs, and task complexity. Use this skill when starting projects with unclear tool requirements, optimizing context-constrained workflows, or designing multi-phase strategies that leverage multiple tools' strengths. This skill helps match tool capabilities to task characteristics, preventing wasted context and ensuring optimal resource allocation.
Its SKILL.md is about 6.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `skill-report.json`).
It sits in Agent Workflows. The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.
When your agent uses it
- Starting projects with unclear tool requirements
- Optimizing context-constrained workflows
- Designing multi-phase strategies that leverage multiple tools strengths
Example prompts
- “/tool-selection-framework”
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- Phase 1: Gemini (Exploration)
- Phase 2: Claude Code (Implementation)
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 markdown).
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
Tool Selection Framework loads about 6.2k tokens when it runs. Until then it costs about 135 tokens; SKILL.md has 2,045 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 2,045 words (~6,246 tokens).
“Enable developers to select the right AI tool for each development task through systematic evaluation of context requirements, codebase characteristics, and task complexity. This skill helps:”
- name
- tool-selection-framework
- category
- intelligence-design
- applies_to
- context-management, tool-optimization
- required_for
- content-implementer, tool-strategy
- version
- 1.0.0
- dependencies
- constitution:v6.0.1
Files
SKILL.md and 1 other file in skills/92bilal26/tool-selection-framework of aiskillstore/marketplace.
- SKILL.md
- skill-report.json
Open the folder on GitHubat commit ad8daf7
Used in 1 other repository
We found 2 copies 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
Tool Selection Framework 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 |
|---|---|---|---|---|---|---|
| Tool Selection Framework this skillaiskillstore/marketplace | 430 | 1 repos | ~6.2k | Automated safety check: Pass | None | |
| MCP Server Builderanthropics/skills | 180k | 64 repos | ~2.3k | Automated safety check: Pass | Apache-2.0 | |
| Hook Development for Claude Code Pluginsanthropics/claude-plugins-official | 38k | 11 repos | ~4.1k | Automated safety check: Notes | Apache-2.0 | |
| Using Superpowersfarm-fe/farm | 5.6k | 35 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Executing Plans Inlineobra/superpowers | 296k | 2 repos | ~5.1k | Automated safety check: Pass | MIT | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 38k | 8 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 |
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Using Superpowers
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Executing Plans Inline
obra/superpowers
Has the agent carry out an implementation plan itself, task by task in the current session, keeping a ledger, proving each step with a test and ending with one whole-branch review.
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Related
Categories
Questions about Tool Selection Framework
What does Tool Selection Framework do?
Design systematic decision frameworks for selecting appropriate AI tools (Claude Code vs Gemini CLI) based on context requirements, codebase size, reasoning depth needs, and task complexity. Tool Selection Framework is an agent skill from aiskillstore/marketplace. Design systematic decision frameworks for selecting appropriate AI tools (Claude Code vs Gemini CLI) based on context requirements, codebase size, reasoning depth needs, and task complexity.
When should I use Tool Selection Framework?
Tool Selection Framework fits situations like: starting projects with unclear tool requirements; optimizing context-constrained workflows; designing multi-phase strategies that leverage multiple tools strengths.
How do I install Tool Selection Framework in Claude Code?
Run `npx skills add aiskillstore/marketplace --skill tool-selection-framework -a claude-code`. Or copy the skill folder (skills/92bilal26/tool-selection-framework in aiskillstore/marketplace) into .claude/skills/tool-selection-framework in your project. Claude Code loads it when a task matches its description.
How do I install Tool Selection Framework in Codex?
Run `npx skills add aiskillstore/marketplace --skill tool-selection-framework -a codex`. Or copy the skill folder (skills/92bilal26/tool-selection-framework in aiskillstore/marketplace) into .agents/skills/tool-selection-framework in your project. Codex loads it when a task matches its description.
Can I use Tool Selection Framework 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 tool-selection-framework -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tool-selection-framework, .gemini/skills/tool-selection-framework, .github/skills/tool-selection-framework and .opencode/skills/tool-selection-framework in your project.
What does Tool Selection Framework need to run?
SKILL.md names no scripts, command-line tools or credentials: Tool Selection Framework is instructions for the agent only.
Does Tool Selection Framework 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 Tool Selection Framework 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 Tool Selection Framework use?
No licence was found for Tool Selection Framework or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Tool Selection Framework use?
About 6.2k tokens (SKILL.md is roughly 25k 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 Tool Selection Framework?
Skills that share tags, products or a category with Tool Selection Framework: MCP Server Builder (anthropics/skills, 180k stars), Hook Development for Claude Code Plugins (anthropics/claude-plugins-official, 38k stars), Using Superpowers (farm-fe/farm, 5.6k stars) and Executing Plans Inline (obra/superpowers, 296k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Tool Selection Framework?
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.