> ## Documentation Index > Fetch the complete documentation index at: https://docs.weaveos.com/llms.txt > Use this file to discover all available pages before exploring further. # Overview > A glossary of every metric in Weave, with a short definition and a link to how each one is calculated Each metric in Weave has its own page that explains what it measures and how it's calculated. Use this page as a glossary to find the one you need. > [!TIP] > > If you're new to Weave, start with [code output](https://docs.weaveos.com/metrics/code-output.md). It's the measure most other output, AI, and review metrics build on. ## AI metrics | Metric | What it measures | | - | - | | [AI lines of code](https://docs.weaveos.com/metrics/ai-code-loc.md) | Lines of code added and deleted by AI assistants | | [AI output percentage](https://docs.weaveos.com/metrics/ai-output-percentage.md) | How much of your team's code output is attributed to AI | | [AI efficiency index](https://docs.weaveos.com/metrics/ai-efficiency-index.md) | A composite score of how effectively your team uses AI coding tools | | [AI reviewer comments](https://docs.weaveos.com/metrics/ai-reviewer-comments.md) | Average count of comments from AI code reviewers | | [AI tool costs](https://docs.weaveos.com/metrics/ai-tool-costs.md) | AI tool spend per engineer in USD, by tool | ## Conversation metrics | Metric | What it measures | | - | - | | [Conversation prompt quality](https://docs.weaveos.com/metrics/conversation-prompt-quality.md) | How effectively engineers prompt AI coding assistants | | [Slack conversations](https://docs.weaveos.com/metrics/slack-conversations.md) | Slack thread activity and response times | ## CI/CD metrics | Metric | What it measures | | - | - | | [CI deploy frequency](https://docs.weaveos.com/metrics/ci-deploy-frequency.md) | Count of production deployments per time period | | [CI deploy success rate](https://docs.weaveos.com/metrics/ci-deploy-success-rate.md) | Percentage of production deployments that complete successfully | | [CI deploy MTTR](https://docs.weaveos.com/metrics/ci-deploy-mttr.md) | Mean time to recovery, from a failed deployment to the next successful one | | [PR deploy lead time](https://docs.weaveos.com/metrics/pr-deploy-lead-time.md) | Time from PR merge to first production deployment | ## Cycle time metrics | Metric | What it measures | | - | - | | [PR cycle time](https://docs.weaveos.com/metrics/pr-cycle-time.md) | Median time from first commit to merge | | [PR merge time](https://docs.weaveos.com/metrics/pr-merge-time.md) | Median time from when a PR was opened to when it merged | | [PR approval to merge time](https://docs.weaveos.com/metrics/pr-approval-to-merge-time.md) | Median time from a PR's first approval to merge | ## Documentation metrics | Metric | What it measures | | - | - | | [Documentation](https://docs.weaveos.com/metrics/documentation.md) | Documentation activity across Notion, Confluence, and Google Drive | ## Output metrics | Metric | What it measures | | - | - | | [Code output](https://docs.weaveos.com/metrics/code-output.md) | The expert-engineer time each PR represents, not lines of code or PR counts | | [Bug ratio](https://docs.weaveos.com/metrics/bug-ratio.md) | The proportion of code output spent on fixing bugs | | [Bugs introduced](https://docs.weaveos.com/metrics/bugs-introduced.md) | Which commits and engineers introduced bugs that were later fixed | | [Code turnover](https://docs.weaveos.com/metrics/code-turnover.md) | How much merged code gets reworked shortly after merge | | [PR lines of code](https://docs.weaveos.com/metrics/pr-lines-of-code.md) | Lines of code in merged PRs, split into human, AI, and codegen | | [Reverted PRs](https://docs.weaveos.com/metrics/revert-prs.md) | Count of PRs that revert previous changes | ## Review metrics | Metric | What it measures | | - | - | | [Code review output](https://docs.weaveos.com/metrics/code-review-output.md) | The expert-engineer time a reviewer's review represents, for humans and AI reviewers | | [Comment resolution](https://docs.weaveos.com/metrics/comment-resolution.md) | Whether PR review comments were addressed by a later commit or a clear reply | | [Comment resolution rate](https://docs.weaveos.com/metrics/comment-resolution-rate.md) | Percentage of suggestion comments the author addressed | | [Output waiting for review](https://docs.weaveos.com/metrics/output-waiting-for-review.md) | Code output of open PRs with pending review requests | | [Review cycles](https://docs.weaveos.com/metrics/review-cycles.md) | Completed human review cycles per PR before merge | | [Review depth](https://docs.weaveos.com/metrics/review-depth.md) | How thoroughly a PR was reviewed | | [Review efficiency index](https://docs.weaveos.com/metrics/review-efficiency-index.md) | A composite score of how effective your code review process is | | [Review quality](https://docs.weaveos.com/metrics/review-quality.md) | How much value a code review added | | [Review turnaround](https://docs.weaveos.com/metrics/review-turnaround.md) | Time between a review request or code update and the review | ## Support metrics | Metric | What it measures | | - | - | | [Support contributions](https://docs.weaveos.com/metrics/support-contributions.md) | Count of support ticket responses and contributions from engineers | | [Support TTFR](https://docs.weaveos.com/metrics/support-ttfr.md) | Median time to first response for tickets that need engineering help | ## Task metrics | Metric | What it measures | | - | - | | [Bug tasks](https://docs.weaveos.com/metrics/bug-tasks.md) | Count of tasks tagged as bugs | | [Task delivery](https://docs.weaveos.com/metrics/task-delivery.md) | Median time between task completion and due date | | [Task lead time](https://docs.weaveos.com/metrics/task-lead-time.md) | Median time from when a task starts to when it's done | ## Related * [Ignored PRs](https://docs.weaveos.com/analysis/ignored-prs.md): which PRs are excluded from metrics * [Type categorization](https://docs.weaveos.com/analysis/type-categorization.md): how PRs are labeled as features, bugs, and other work types * [Benchmarks](https://docs.weaveos.com/annotations/benchmarks.md): how your metrics compare to other teams This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.