This server automates Git commits with AI attribution by:

• Committing staged changes in a Git repository with a specific message

• Automatically appending "(aider)" to the committer's name to track AI contributions

• Optionally specifying a working directory for the git command

• Using environment variables for committer name and email, or falling back to git config

• Enabling tracking of AI contribution using aider --stats or custom scripts

Allows committing staged changes to a Git repository with AI attribution by automatically appending '(aider)' to the committer's name, enabling tracking of AI contributions in codebases.

1. Click on "Install Server".

2. Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.

3. In the chat, type @ followed by the MCP server name and your instructions, e.g., "@git-commit-aider MCP Server commit these changes with message 'fix login validation bug'"

That's it! The server will respond to your query, and you can continue using it as needed.

Here is a step-by-step guide with screenshots.

{
 "mcpServers": {
 "git-commit-aider": {
 "command": "npx",
 "args": ["mcp-git-commit-aider"]
 }
 }
}

git commit --amend --author="$(git config user.name) (aider) <$(git config user.email)>"

git config --global alias.aimend '!git commit --amend --author="$(git config user.name) (aider) <$(git config user.email)>"'

git aimend

#!/bin/bash

# Script to calculate line changes (added, deleted, total) by AI and human authors
# between two commits.
# Output is in JSON format.
#
# This logic is extracted and altered from git-quick-stats.sh, MIT license.

# --- Configuration ---
# You may change the config to match your repository's convention.

# String to identify AI-generated commits in author names
AI_MATCHER="(aider)"

# Define patterns for files/paths to be excluded from the calculation.
# These will be converted to git pathspecs like ":(exclude)*package-lock.json"
IGNORE_PATTERNS=(
 "*package-lock.json"
 "*.lock"
)

# --- Helper Functions ---
function print_usage() {
 echo "Usage: $0 <REVISION_RANGE>"
 echo " <REVISION_RANGE>: The revision range to analyze (e.g., HEAD~5..HEAD, my-branch, commit_sha)."
 echo " Refer to 'git help log' or 'git help revisions' for more range options."
 echo "Example: $0 HEAD~5..HEAD"
 echo "Example: $0 origin..HEAD"
 echo "Example: $0 my-feature-branch"
 echo "Example: $0 abcdef1..fedcba2"
}

# --- Argument Parsing ---
if [ "$#" -ne 1 ]; then
 echo "Error: Incorrect number of arguments. Please provide a single revision range."
 print_usage
 exit 1
fi

REVISION_RANGE="$1"

# --- Main Logic ---

# Construct pathspec arguments for git log
pathspec_args=()
for pattern in "${IGNORE_PATTERNS[@]}"; do
 pathspec_args+=(":(exclude)$pattern")
done

git_log_output=$(git log "$REVISION_RANGE" --numstat --pretty="format:AuthorName:%an" -- "${pathspec_args[@]}")

# DEBUG: Uncomment to check the calculation for each commit.
# echo "$git_log_output"

# Process the log output with awk
result_json=$(echo "$git_log_output" | awk -v ai_matcher="$AI_MATCHER" '
BEGIN {
 ai_added = 0
 ai_deleted = 0
 human_added = 0
 human_deleted = 0
 current_author = ""
 is_ai_author = 0
}

/^AuthorName:/ {
 # Extract author name
 current_author = substr($0, length("AuthorName:") + 1)
 if (index(current_author, ai_matcher) > 0) {
 is_ai_author = 1
 } else {
 is_ai_author = 0
 }
 next
}

# Skip empty lines between commit blocks or lines that are not numstat
NF == 0 || !($1 ~ /^[0-9]+$/ && $2 ~ /^[0-9]+$/) {
 next
}

# Process numstat line: <added> <deleted> <file>
{
 added_lines = $1
 deleted_lines = $2

 # Skip binary files where numstat shows "-" for lines
 if (added_lines == "-" || deleted_lines == "-") {
 next
 }

 # Aggregate stats per author and file for details array
 file_name = $3
 # Robust key using File Separator character \034
 key = current_author "\034" file_name

 file_author_added[key] += added_lines
 file_author_deleted[key] += deleted_lines

 if (is_ai_author) {
 ai_added += added_lines
 ai_deleted += deleted_lines
 } else {
 human_added += added_lines
 human_deleted += deleted_lines
 }
}

END {
 ai_total_changed = ai_added + ai_deleted
 human_total_changed = human_added + human_deleted
 overall_total_changed = ai_total_changed + human_total_changed
 ai_percentage = 0.00

 if (overall_total_changed > 0) {
 ai_percentage = (ai_total_changed / overall_total_changed) * 100
 }

 printf "{\n"
 printf " \"ai_percentage\": %.2f,\n", ai_percentage
 printf " \"ai_changes\": {\"added\": %d, \"deleted\": %d, \"total\": %d},\n", ai_added, ai_deleted, ai_total_changed
 printf " \"human_changes\": {\"added\": %d, \"deleted\": %d, \"total\": %d},\n", human_added, human_deleted, human_total_changed

 # Details array
 printf " \"details\": [\n"
 first_detail = 1
 # Iterate over one of the arrays, keys should be consistent
 for (key in file_author_added) {
 if (!first_detail) {
 printf ",\n"
 }
 first_detail = 0

 # Split key "author\034fileName" into key_parts array
 # key_parts[1] will be author, key_parts[2] will be fileName
 split(key, key_parts, "\034")
 author = key_parts[1]
 fileName = key_parts[2]

 # Escape double quotes for JSON compatibility
 gsub(/"/, "\\\"", author)
 gsub(/"/, "\\\"", fileName)

 detail_added = file_author_added[key] + 0 # Ensure numeric
 detail_deleted = file_author_deleted[key] + 0 # Ensure numeric
 detail_total = detail_added + detail_deleted

 printf " {\n"
 printf " \"fileName\": \"%s\",\n", fileName
 printf " \"author\": \"%s\", \"isAI\": %s,\n", author, (index(author, ai_matcher) > 0 ? "true" : "false")
 printf " \"added\": %d, \"deleted\": %d, \"total\": %d\n", detail_added, detail_deleted, detail_total
 printf " }"
 }
 printf "\n ]\n"
 printf "}\n"
}
')

# --- Output ---
echo "$result_json"

# Assume the script is saved as `calculate_ai_contribution.sh` and is executable (chmod +x calculate_ai_contribution.sh)

# Example 1: Analyze the last 5 commits
./calculate_ai_contribution.sh HEAD~5..HEAD

# Example 2: Analyze commits between a specific commit and HEAD
./calculate_ai_contribution.sh 90a5fcd4..HEAD

# Example 3: Analyze all commits on a feature branch not yet in main
./calculate_ai_contribution.sh main..my-feature-branch

# Example 4: Analyze commits between two tags
./calculate_ai_contribution.sh v1.0..v1.1

# Example output (will vary based on your repository and range):
# {
# "ai_percentage": 48.53,
# "ai_changes": { "added": 100, "deleted": 32, "total": 132 },
# "human_changes": { "added": 103, "deleted": 37, "total": 140 },
# "details": [
# {
# "fileName": "src/featureA.js",
# "author": "Developer One (aider)", "isAI": true,
# "added": 60, "deleted": 10, "total": 70
# },
# {
# "fileName": "src/featureB.js",
# "author": "Developer One (aider)", "isAI": true,
# "added": 40, "deleted": 22, "total": 62
# },
# {
# "fileName": "src/utils.js",
# "author": "Developer Two", "isAI": false,
# "added": 80, "deleted": 15, "total": 95
# },
# {
# "fileName": "README.md",
# "author": "Developer Two", "isAI": false,
# "added": 23, "deleted": 22, "total": 45
# }
# ]
# }

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