AWS CodeCommit Management Skill

Analyze and manage AWS CodeCommit repositories, branches, and pull requests.

MANDATORY: Discovery-First Pattern

Always list repositories before querying specific resources.

Phase 1: Discovery

#!/bin/bash
export AWS_PAGER=""

echo "=== CodeCommit Repositories ==="
aws codecommit list-repositories --output text \
  --query 'repositories[].[repositoryName,repositoryId]'

echo ""
echo "=== Repository Details ==="
for repo in $(aws codecommit list-repositories --output text --query 'repositories[].repositoryName'); do
  aws codecommit get-repository --repository-name "$repo" --output text \
    --query 'repositoryMetadata.[repositoryName,defaultBranch,cloneUrlHttp,lastModifiedDate]' &
done
wait

echo ""
echo "=== Branches Per Repository ==="
for repo in $(aws codecommit list-repositories --output text --query 'repositories[].repositoryName'); do
  {
    branches=$(aws codecommit list-branches --repository-name "$repo" --output text --query 'branches[]' | wc -w)
    printf "%s\t%s branches\n" "$repo" "$branches"
  } &
done
wait

Phase 2: Analysis

#!/bin/bash
export AWS_PAGER=""

echo "=== Open Pull Requests ==="
for repo in $(aws codecommit list-repositories --output text --query 'repositories[].repositoryName'); do
  for pr_id in $(aws codecommit list-pull-requests --repository-name "$repo" --pull-request-status OPEN --output text --query 'pullRequestIds[]' 2>/dev/null); do
    aws codecommit get-pull-request --pull-request-id "$pr_id" --output text \
      --query "pullRequest.[pullRequestId,title,authorArn,pullRequestStatus,creationDate]" &
  done
done
wait | head -20

echo ""
echo "=== Recent Commits (default branch) ==="
for repo in $(aws codecommit list-repositories --output text --query 'repositories[].repositoryName'); do
  {
    branch=$(aws codecommit get-repository --repository-name "$repo" --output text --query 'repositoryMetadata.defaultBranch')
    if [ -n "$branch" ] && [ "$branch" != "None" ]; then
      aws codecommit get-branch --repository-name "$repo" --branch-name "$branch" --output text \
        --query "branch.[\"$repo\",branchName,commitId]" 2>/dev/null
    fi
  } &
done
wait

echo ""
echo "=== Approval Rule Templates ==="
aws codecommit list-approval-rule-templates --output text \
  --query 'approvalRuleTemplateNames[]' 2>/dev/null

echo ""
echo "=== Repository Triggers ==="
for repo in $(aws codecommit list-repositories --output text --query 'repositories[].repositoryName'); do
  aws codecommit get-repository-triggers --repository-name "$repo" --output text \
    --query "triggers[].[\"$repo\",name,destinationArn]" 2>/dev/null &
done
wait

Output Format

• Target ≤50 lines per output
• Use --output text --query for all commands
• Tab-delimited fields: RepoName, Branch, PRId, Status
• Limit commit history to last 5 per repository
• Never dump full diffs -- show commit metadata only

Anti-Hallucination Rules

1. NEVER assume resource names — always discover via CLI/API in Phase 1 before referencing in Phase 2.
2. NEVER fabricate metric names or dimensions — verify against the service documentation or --help output.
3. NEVER mix CLI commands between service versions — confirm which version/API you are targeting.
4. ALWAYS use the discovery → verify → analyze chain — every resource referenced must have been discovered first.
5. ALWAYS handle empty results gracefully — an empty response is valid data, not an error to retry.

Counter-Rationalizations

Shortcut	Counter	Why
"I'll skip discovery and check known resources"	Always run Phase 1 discovery first	Resource names change, new resources appear — assumed names cause errors
"The user only asked for a quick check"	Follow the full discovery → analysis flow	Quick checks miss critical issues; structured analysis catches silent failures
"Default configuration is probably fine"	Audit configuration explicitly	Defaults often leave logging, security, and optimization features disabled
"Metrics aren't needed for this"	Always check relevant metrics when available	API/CLI responses show current state; metrics reveal trends and intermittent issues
"I don't have access to that"	Try the command and report the actual error	Assumed permission failures prevent useful investigation; actual errors are informative

Common Pitfalls

• Default branch: Not all repos have a default branch set -- check for None/empty before querying
• Pull request IDs: List returns IDs only -- need separate get-pull-request call for details
• Approval rules: Templates must be associated with repos to take effect -- check associations
• Triggers: Support SNS and Lambda destinations -- verify destination ARN is valid
• Repository size: No direct API for repo size -- use get-repository metadata for last modified date
• CodeCommit deprecation: AWS has announced CodeCommit is no longer accepting new customers -- consider migration paths