Instructions

Executes a given bash command in a shell with optional timeout, ensuring proper handling and security measures.

Before executing the command, please follow these steps:

Directory Verification:
- If the command will create new directories or files, first use the directory_tree tool to verify the parent directory exists and is the correct location
- For example, before running "mkdir foo/bar", first use directory_tree to check that "foo" exists and is the intended parent directory
Command Execution:
- After ensuring proper quoting, execute the command.
- Capture the output of the command.

Usage notes:

The command argument is required.
You can specify an optional timeout in milliseconds (up to 600000ms / 10 minutes). If not specified, commands will timeout after 120000ms (2 minutes).
It is very helpful if you write a clear, concise description of what this command does in 5-10 words.
If the output exceeds 30000 characters, output will be truncated before being returned to you.
VERY IMPORTANT: You MUST avoid using search commands like find and grep. Instead use Grep, Glob, or Task to search. You MUST avoid read tools like cat, head, tail, and ls, and use read and directory_tree to read files.
If you still need to run grep, STOP. ALWAYS USE ripgrep at rg (or /opt/homebrew/Cellar/ripgrep/14.1.1/bin/rg) first, which all Claude Code users have pre-installed.
When issuing multiple commands, use the ';' or '&&' operator to separate them. DO NOT use newlines (newlines are ok in quoted strings). cd /foo/bar && pytest tests

Committing changes with git

When the user asks you to create a new git commit, follow these steps carefully:

You have the capability to call multiple tools in a single response. When multiple independent pieces of information are requested, batch your tool calls together for optimal performance. ALWAYS run the following bash commands in parallel, each using the Bash tool:
- Run a git status command to see all untracked files.
- Run a git diff command to see both staged and unstaged changes that will be committed.
- Run a git log command to see recent commit messages, so that you can follow this repository's commit message style.
Analyze all staged changes (both previously staged and newly added) and draft a commit message. Wrap your analysis process in <commit_analysis> tags:

<commit_analysis>

List the files that have been changed or added
Summarize the nature of the changes (eg. new feature, enhancement to an existing feature, bug fix, refactoring, test, docs, etc.)
Brainstorm the purpose or motivation behind these changes
Assess the impact of these changes on the overall project
Check for any sensitive information that shouldn't be committed
Draft a concise (1-2 sentences) commit message that focuses on the "why" rather than the "what"
Ensure your language is clear, concise, and to the point
Ensure the message accurately reflects the changes and their purpose (i.e. "add" means a wholly new feature, "update" means an enhancement to an existing feature, "fix" means a bug fix, etc.)
Ensure the message is not generic (avoid words like "Update" or "Fix" without context)
Review the draft message to ensure it accurately reflects the changes and their purpose </commit_analysis>

You have the capability to call multiple tools in a single response. When multiple independent pieces of information are requested, batch your tool calls together for optimal performance. ALWAYS run the following commands in parallel:
- Add relevant untracked files to the staging area.
- Create the commit with a message ending with: 🤖 Generated with Claude Code
Co-Authored-By: Claude noreply@anthropic.com
- Run git status to make sure the commit succeeded.
If the commit fails due to pre-commit hook changes, retry the commit ONCE to include these automated changes. If it fails again, it usually means a pre-commit hook is preventing the commit. If the commit succeeds but you notice that files were modified by the pre-commit hook, you MUST amend your commit to include them.

Important notes:

Use the git context at the start of this conversation to determine which files are relevant to your commit. Be careful not to stage and commit files (e.g. with git add .) that aren't relevant to your commit.
NEVER update the git config
DO NOT run additional commands to read or explore code, beyond what is available in the git context
DO NOT push to the remote repository
IMPORTANT: Never use git commands with the -i flag (like git rebase -i or git add -i) since they require interactive input which is not supported.
If there are no changes to commit (i.e., no untracked files and no modifications), do not create an empty commit
Ensure your commit message is meaningful and concise. It should explain the purpose of the changes, not just describe them.
Return an empty response - the user will see the git output directly
In order to ensure good formatting, ALWAYS pass the commit message via a HEREDOC, a la this example:

git commit -m "$(cat <<'EOF' Commit message here.

🤖 Generated with MCP Claude Code

EOF )"

Creating pull requests

Use the gh command via the Bash tool for ALL GitHub-related tasks including working with issues, pull requests, checks, and releases. If given a Github URL use the gh command to get the information needed.

IMPORTANT: When the user asks you to create a pull request, follow these steps carefully:

You have the capability to call multiple tools in a single response. When multiple independent pieces of information are requested, batch your tool calls together for optimal performance. ALWAYS run the following bash commands in parallel using the Bash tool, in order to understand the current state of the branch since it diverged from the main branch:
- Run a git status command to see all untracked files
- Run a git diff command to see both staged and unstaged changes that will be committed
- Check if the current branch tracks a remote branch and is up to date with the remote, so you know if you need to push to the remote
- Run a git log command and git diff main...HEAD to understand the full commit history for the current branch (from the time it diverged from the main branch)
Analyze all changes that will be included in the pull request, making sure to look at all relevant commits (NOT just the latest commit, but ALL commits that will be included in the pull request!!!), and draft a pull request summary. Wrap your analysis process in <pr_analysis> tags:

<pr_analysis>

List the commits since diverging from the main branch
Summarize the nature of the changes (eg. new feature, enhancement to an existing feature, bug fix, refactoring, test, docs, etc.)
Brainstorm the purpose or motivation behind these changes
Assess the impact of these changes on the overall project
Do not use tools to explore code, beyond what is available in the git context
Check for any sensitive information that shouldn't be committed
Draft a concise (1-2 bullet points) pull request summary that focuses on the "why" rather than the "what"
Ensure the summary accurately reflects all changes since diverging from the main branch
Ensure your language is clear, concise, and to the point
Ensure the summary accurately reflects the changes and their purpose (ie. "add" means a wholly new feature, "update" means an enhancement to an existing feature, "fix" means a bug fix, etc.)
Ensure the summary is not generic (avoid words like "Update" or "Fix" without context)
Review the draft summary to ensure it accurately reflects the changes and their purpose </pr_analysis>

You have the capability to call multiple tools in a single response. When multiple independent pieces of information are requested, batch your tool calls together for optimal performance. ALWAYS run the following commands in parallel:
- Create new branch if needed
- Push to remote with -u flag if needed
- Create PR using gh pr create with the format below. Use a HEREDOC to pass the body to ensure correct formatting.

gh pr create --title "the pr title" --body "$(cat <<'EOF'

Summary

<1-3 bullet points>

Test plan

[Checklist of TODOs for testing the pull request...]

🤖 Generated with Claude Code EOF )"

Important:

NEVER update the git config
Return the PR URL when you're done, so the user can see it

Other common operations

View comments on a Github PR: gh api repos/foo/bar/pulls/123/comments

Input Schema

Name	Required	Description
`command`	Yes	The shell command to execute
`cwd`	Yes	Working directory where the command should be executed
`shell_type`	No	Type of shell to use (e.g., bash, zsh). Defaults to system default
`use_login_shell`	No	Whether to use a login shell (default: True)

Input Schema (JSON Schema)

{
  "properties": {
    "command": {
      "description": "The shell command to execute",
      "minLength": 1,
      "title": "Command",
      "type": "string"
    },
    "cwd": {
      "description": "Working directory where the command should be executed",
      "minLength": 1,
      "title": "Cwd",
      "type": "string"
    },
    "shell_type": {
      "anyOf": [
        {
          "type": "string"
        },
        {
          "type": "null"
        }
      ],
      "default": null,
      "description": "Type of shell to use (e.g., bash, zsh). Defaults to system default",
      "title": "Shell Type"
    },
    "use_login_shell": {
      "default": true,
      "description": "Whether to use a login shell (default: True)",
      "title": "Use Login Shell",
      "type": "boolean"
    }
  },
  "required": [
    "command",
    "cwd"
  ],
  "type": "object"
}

MCP Claude Code

run_command