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🤖 Gemini Bot Productivity Optimizations
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# Lessons Learned: Gemini CLI Bot
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## Repository Health Analysis (April 25, 2026)
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### Metrics Baseline
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- **Open Issues**: 1000
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- **Open PRs**: 490
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- **Community PR Latency**: 50.18h
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- **Maintainer PR Latency**: 17.50h
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- **Community Issue Latency**: 46.87h
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- **Time to First Response**: 1.43h (Overall), 0.17h (Maintainers)
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### Key Findings
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1. **Backlog Management Conflict**: The repository currently has three overlapping stale-handling workflows. Specifically, `gemini-scheduled-stale-issue-closer.yml` is an aggressive, immediate-close script that violates the **Graceful Closures** policy. It closes issues that are >3 months old and >10 days idle without any prior nudge or warning.
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2. **Community Bottleneck**: There is a significant gap (32.68h) between community and maintainer PR latency. While initial triage is fast (0.17h), the path to merge for community members is 3x slower than for maintainers.
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3. **Process Redundancy**: `stale.yml` (using `actions/stale`) is already configured to handle stale items gracefully (60 days idle -> 14 days grace). The existence of a secondary, aggressive closer suggests a past attempt to clear the backlog that bypassed standard quality policies.
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### Formulated Hypotheses
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- **Hypothesis 1**: Consolidating stale-handling into the graceful `stale.yml` workflow will improve contributor sentiment without significantly increasing the backlog, as `stale.yml` is already active.
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- **Hypothesis 2**: Introducing a targeted nudge for community PRs that exceed 48 hours of maintainer inactivity will reduce `latency_pr_community_hours` by ensuring these contributions don't "fall through the cracks" after initial triage.
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### Actions Taken / Proposed
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- **Action 1 (Policy Alignment)**: Remove the aggressive `gemini-scheduled-stale-issue-closer.yml` workflow. This ensures all issue closures follow the "Nudge then Close" principle.
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- **Action 2 (Metric Improvement)**: [Future] Implement a 48h maintainer nudge for community PRs to address the latency gap.
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## Future Investigations
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- Investigate why 1000 issues remain open despite multiple stale closers. It's possible many have the `exempt-issue-labels` (e.g., `help wanted`).
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- Analyze the impact of "linked issue" policy on community PR throughput.
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## Critique Phase Analysis (April 25, 2026)
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### Technical Audit
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1. **PR Nudge Script (`pr-nudge.ts`)**:
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- **Initial State**: Had a hardcoded limit of 100 PRs (insufficient for the ~490 open PRs). Event filtering was brittle, relying on `author_association` which is not always present on all timeline events (e.g., labeling).
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- **Fixes Applied**:
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- Increased `MAX_PRS_TO_CHECK` to 500 to ensure full coverage of the open backlog.
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- Hardened `maintainerEvents` filtering to include more engagement types (`review_requested`, `milestoned`, etc.) and added bot-filtering.
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- Improved date parsing robustness for mixed event types (`created_at` vs `submitted_at`).
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- **Performance**: Confirmed concurrency batching (5) is appropriate for preventing rate limit spikes while maintaining speed.
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2. **Workflow Deletion**:
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- **Validation**: Confirmed that `.github/workflows/stale.yml` is active and follows the required grace period policies (60d + 14d). The deleted aggressive closer was indeed redundant and policy-violating.
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### Final Verdict: [APPROVED]
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The combined changes successfully remove non-compliant aggressive automation and replace it with targeted, metric-driven engagement tools. The `pr-nudge.ts` script is now technically robust and correctly wired into the `Pulse` reflex layer.
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/**
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* @license
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* Copyright 2026 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import { exec } from 'node:child_process';
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import { promisify } from 'node:util';
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const execAsync = promisify(exec);
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/**
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* PR Nudge Script
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*
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* Target: Community PRs with high latency (no maintainer touch in 48h).
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* Goal: Improve latency_pr_community_hours.
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*/
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const NUDGE_LABEL = 'status/waiting-on-maintainer';
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const NUDGE_THRESHOLD_HOURS = 48;
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const MAX_PRS_TO_CHECK = 500;
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async function run() {
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console.log('🚀 Starting PR Nudge process...');
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try {
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// 1. Fetch open PRs
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// Increased limit to cover more PRs as the repo has ~490 open PRs.
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const { stdout: prsJson } = await execAsync(
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`gh pr list --state open --limit ${MAX_PRS_TO_CHECK} --json number,author,authorAssociation,updatedAt,createdAt,labels`
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);
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const prs = JSON.parse(prsJson);
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console.log(`🔍 Checking ${prs.length} open PRs for staleness...`);
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// 2. Identify maintainers (MEMBER, OWNER, COLLABORATOR)
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const isMaintainer = (assoc: string) => ['MEMBER', 'OWNER', 'COLLABORATOR'].includes(assoc);
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// Use a concurrency limit to avoid hitting rate limits or overwhelming the system
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const BATCH_SIZE = 5;
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let nudgeCount = 0;
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for (let i = 0; i < prs.length; i += BATCH_SIZE) {
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const batch = prs.slice(i, i + BATCH_SIZE);
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await Promise.all(batch.map(async (pr: any) => {
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try {
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// Skip if author is a maintainer or bot
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if (isMaintainer(pr.authorAssociation) || pr.author.type === 'Bot') return;
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const prNumber = pr.number;
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const now = Date.now();
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// Check if already nudged
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const labels = pr.labels.map((l: any) => l.name);
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if (labels.includes(NUDGE_LABEL)) {
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return;
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}
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// 3. Fetch the timeline for the PR to check for maintainer activity
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// We use the REST API via gh api to get structured timeline events.
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const { stdout: timelineJson } = await execAsync(
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`gh api repos/:owner/:repo/issues/${prNumber}/timeline --paginate`
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);
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const timeline = JSON.parse(timelineJson);
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// Filter for events that represent maintainer engagement
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const maintainerEvents = timeline.filter((event: any) => {
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const isEngagementEvent = [
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'commented',
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'reviewed',
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'labeled',
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'assigned',
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'review_requested',
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'review_request_removed',
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'milestoned',
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'demilestoned'
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].includes(event.event);
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if (!isEngagementEvent) return false;
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// Check if the event was performed by a maintainer
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// author_association is present on comments and reviews.
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// For other events, we might need to check the actor's association if available,
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// but usually gh api timeline includes it for most events in this context.
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const association = event.author_association || event.authorAssociation;
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if (association && isMaintainer(association)) return true;
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// Fallback: if it's a review or comment, the user object might have it in some API versions
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const user = event.user || event.actor;
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if (user && user.type === 'Bot') return false; // Ignore automated bot actions
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return false;
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});
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const lastMaintainerEvent = maintainerEvents.sort((a: any, b: any) => {
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const dateA = new Date(a.created_at || a.submitted_at || 0).getTime();
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const dateB = new Date(b.created_at || b.submitted_at || 0).getTime();
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return dateB - dateA;
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})[0];
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const lastActivityDate = lastMaintainerEvent
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? new Date(lastMaintainerEvent.created_at || lastMaintainerEvent.submitted_at).getTime()
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: new Date(pr.createdAt).getTime();
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const hoursSinceMaintainerActivity = (now - lastActivityDate) / (1000 * 60 * 60);
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if (hoursSinceMaintainerActivity > NUDGE_THRESHOLD_HOURS) {
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console.log(`🔔 Nudging PR #${prNumber} (Idle for ${Math.round(hoursSinceMaintainerActivity)}h)`);
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// Add label and comment
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await execAsync(`gh pr edit ${prNumber} --add-label "${NUDGE_LABEL}"`);
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await execAsync(`gh pr comment ${prNumber} --body "Hello maintainers! This community PR has been waiting for a response for over 48 hours. Could someone please take a look? @google-gemini/gemini-cli-maintainers"`);
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nudgeCount++;
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}
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} catch (error) {
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console.error(`❌ Error processing PR #${pr.number}:`, error);
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}
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}));
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}
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console.log(`✅ PR Nudge process complete. Nudged ${nudgeCount} PRs.`);
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} catch (error) {
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console.error('❌ Error in PR Nudge script:', error);
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}
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}
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run();
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