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source dump of claude code forked from oppi.li/claude-code
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1.9 kB · 55 lines
TypeScript
at main
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556import { getGlobalConfig, saveGlobalConfig } from '../config.js'
const SKILL_USAGE_DEBOUNCE_MS = 60_000
// Process-lifetime debounce cache — avoids lock + read + parse on debounced// calls. Same pattern as lastConfigStatTime / globalConfigWriteCount in config.ts.const lastWriteBySkill = new Map<string, number>()
/** * Records a skill usage for ranking purposes. * Updates both usage count and last used timestamp. */export function recordSkillUsage(skillName: string): void { const now = Date.now() const lastWrite = lastWriteBySkill.get(skillName) // The ranking algorithm uses a 7-day half-life, so sub-minute granularity // is irrelevant. Bail out before saveGlobalConfig to avoid lock + file I/O. if (lastWrite !== undefined && now - lastWrite < SKILL_USAGE_DEBOUNCE_MS) { return } lastWriteBySkill.set(skillName, now) saveGlobalConfig(current => { const existing = current.skillUsage?.[skillName] return { ...current, skillUsage: { ...current.skillUsage, [skillName]: { usageCount: (existing?.usageCount ?? 0) + 1, lastUsedAt: now, }, }, } })}
/** * Calculates a usage score for a skill based on frequency and recency. * Higher scores indicate more frequently and recently used skills. * * The score uses exponential decay with a half-life of 7 days, * meaning usage from 7 days ago is worth half as much as usage today. */export function getSkillUsageScore(skillName: string): number { const config = getGlobalConfig() const usage = config.skillUsage?.[skillName] if (!usage) return 0
// Recency decay: halve score every 7 days const daysSinceUse = (Date.now() - usage.lastUsedAt) / (1000 * 60 * 60 * 24) const recencyFactor = Math.pow(0.5, daysSinceUse / 7)
// Minimum recency factor of 0.1 to avoid completely dropping old but heavily used skills return usage.usageCount * Math.max(recencyFactor, 0.1)}