code-execution

Q: How do I install code-execution?

Run npx skills add https://github.com/mhattingpete/claude-skills-marketplace --skill code-execution in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/code-execution/ (personal) or .claude/skills/code-execution/ (project).

by mhattingpeteBackend & APIs

Execute Python code locally with marketplace API access for 90%+ token savings on bulk operations. Activates when user requests bulk operations (10+ files), complex multi-step workflows, iterative processing, or mentions efficiency/performance.

Installs: 290
Last 24h: —
Trending rank: —
Security: Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/mhattingpete/claude-skills-marketplace --skill code-execution

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads code-execution automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Code Execution

Execute Python locally with API access. 90-99% token savings for bulk operations.

When to Use

Bulk operations (10+ files)
Complex multi-step workflows
Iterative processing across many files
User mentions efficiency/performance

How to Use

Use direct Python imports in Claude Code:

from execution_runtime import fs, code, transform, git

# Code analysis (metadata only!)
functions = code.find_functions('app.py', pattern='handle_.*')

# File operations
code_block = fs.copy_lines('source.py', 10, 20)
fs.paste_code('target.py', 50, code_block)

# Bulk transformations
result = transform.rename_identifier('.', 'oldName', 'newName', '**/*.py')

# Git operations
git.git_add(['.'])
git.git_commit('feat: refactor code')

If not installed: Run ~/.claude/plugins/marketplaces/mhattingpete-claude-skills/execution-runtime/setup.sh

Available APIs

Filesystem (fs): copy_lines, paste_code, search_replace, batch_copy
Code Analysis (code): find_functions, find_classes, analyze_dependencies - returns METADATA only!
Transformations (transform): rename_identifier, remove_debug_statements, batch_refactor
Git (git): git_status, git_add, git_commit, git_push

Pattern

Analyze locally (metadata only, not source)
Process locally (all operations in execution)
Return summary (not data!)

Examples

Bulk refactor (50 files):

from execution_runtime import transform
result = transform.rename_identifier('.', 'oldName', 'newName', '**/*.py')
# Returns: {'files_modified': 50, 'total_replacements': 247}

Extract functions:

from execution_runtime import code, fs

functions = code.find_functions('app.py', pattern='.*_util$')  # Metadata only!
for func in functions:
    code_block = fs.copy_lines('app.py', func['start_line'], func['end_line'])
    fs.paste_code('utils.py', -1, code_block)

result = {'functions_moved': len(functions)}

Code audit (100 files):

from execution_runtime import code
from pathlib import Path

files = list(Path('.').glob('**/*.py'))
issues = []

for file in files:
    deps = code.analyze_dependencies(str(file))  # Metadata only!
    if deps.get('complexity', 0) > 15:
        issues.append({'file': str(file), 'complexity': deps['complexity']})

result = {'files_audited': len(files), 'high_complexity': len(issues)}

Best Practices

✅ Return summaries, not data ✅ Use code_analysis (returns metadata, not source) ✅ Batch operations ✅ Handle errors, return error count

❌ Don't return all code to context ❌ Don't read full source when you need metadata ❌ Don't process files one by one

Token Savings

Files	Traditional	Execution	Savings
10	5K tokens	500	90%
50	25K tokens	600	97.6%
100	150K tokens	1K	99.3%

FAQ

What does the code-execution skill do?

How do I install code-execution?

Run npx skills add https://github.com/mhattingpete/claude-skills-marketplace --skill code-execution in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/code-execution/ (personal) or .claude/skills/code-execution/ (project).

Which AI agents can use code-execution?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is code-execution safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains code-execution?

It is published by mhattingpete in mhattingpete/claude-skills-marketplace. It has 290 recorded installs.