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gemini-cli/tools/gemini-cli-bot/metrics/scripts/bottlenecks.ts
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gemini-cli[bot] 6ec068c2ab # Description
Fix Metrics History Retention & Accuracy

This PR addresses several issues identified in the repository's metrics collection and analysis pipeline:

1.  **Increased History Retention**: Increased the rolling window in `metrics/index.ts` from 100 rows to 5000 rows. The previous limit was too small (holding only ~1.5 runs of data), which prevented meaningful delta calculations.
2.  **Restored Backlog Age Metric**: Re-introduced `backlog_age.ts` to calculate the average age of the oldest 100 open issues. This provides visibility into backlog stagnation.
3.  **Enhanced Throughput Accuracy**: Updated `throughput.ts` to distinguish between items **authored** by maintainers and items **processed** (merged/closed) by maintainers. This gives a more accurate measure of maintainer velocity.
4.  **Added Bottleneck Analysis**: Introduced `bottlenecks.ts` to sample open PRs and identify if they are likely waiting on a maintainer review or an author's response.

These changes will significantly improve the "Brain's" ability to identify trends and bottlenecks in the repository workflow.

# Impact
- More accurate 7-day and 30-day deltas for all metrics.
- Better visibility into maintainer workload and backlog health.
- Data-driven identification of whether bottlenecks are due to maintainer capacity or author responsiveness.
2026-05-01 18:51:31 +00:00

75 lines
2.0 KiB
TypeScript

/**
* @license
* Copyright 2026 Google LLC
* SPDX-License-Identifier: Apache-2.0
*/
import { GITHUB_OWNER, GITHUB_REPO } from '../types.js';
import { execSync } from 'node:child_process';
try {
const query = `
query($owner: String!, $repo: String!) {
repository(owner: $owner, name: $repo) {
pullRequests(states: OPEN, last: 50) {
nodes {
author { login }
timelineItems(last: 10, itemTypes: [ISSUE_COMMENT, PULL_REQUEST_REVIEW, PULL_REQUEST_REVIEW_COMMENT]) {
nodes {
... on IssueComment { author { login } createdAt }
... on PullRequestReview { author { login } createdAt }
... on PullRequestReviewComment { author { login } createdAt }
}
}
}
}
}
}
`;
const output = execSync(
`gh api graphql -F owner=${GITHUB_OWNER} -F repo=${GITHUB_REPO} -f query='${query}'`,
{ encoding: 'utf-8' },
);
const data = JSON.parse(output).data.repository;
const prs = data.pullRequests.nodes;
let waitingOnMaintainer = 0;
let waitingOnAuthor = 0;
for (const pr of prs) {
const author = pr.author?.login;
if (!author) continue;
const items = pr.timelineItems.nodes as {
author: { login: string };
createdAt: string;
}[];
if (items.length === 0) {
waitingOnMaintainer++;
continue;
}
// Sort by createdAt just in case
items.sort(
(a, b) =>
new Date(a.createdAt).getTime() - new Date(b.createdAt).getTime(),
);
const lastItem = items[items.length - 1];
const lastActor = lastItem.author?.login;
if (lastActor === author) {
waitingOnMaintainer++;
} else {
waitingOnAuthor++;
}
}
process.stdout.write(
`prs_waiting_on_maintainer_sample,${waitingOnMaintainer}\n`,
);
process.stdout.write(`prs_waiting_on_author_sample,${waitingOnAuthor}\n`);
} catch (err) {
process.stderr.write(err instanceof Error ? err.message : String(err));
process.exit(1);
}