oppi.li
source dump of claude code
1import { getFeatureValue_CACHED_MAY_BE_STALE } from '../analytics/growthbook.js'
2
3/**
4 * GrowthBook config for time-based microcompact.
5 *
6 * Triggers content-clearing microcompact when the gap since the last main-loop
7 * assistant message exceeds a threshold — the server-side prompt cache has
8 * almost certainly expired, so the full prefix will be rewritten anyway.
9 * Clearing old tool results before the request shrinks what gets rewritten.
10 *
11 * Runs BEFORE the API call (in microcompactMessages, upstream of callModel)
12 * so the shrunk prompt is what actually gets sent. Running after the first
13 * miss would only help subsequent turns.
14 *
15 * Main thread only — subagents have short lifetimes where gap-based eviction
16 * doesn't apply.
17 */
18export type TimeBasedMCConfig = {
19 /** Master switch. When false, time-based microcompact is a no-op. */
20 enabled: boolean
21 /** Trigger when (now − last assistant timestamp) exceeds this many minutes.
22 * 60 is the safe choice: the server's 1h cache TTL is guaranteed expired
23 * for all users, so we never force a miss that wouldn't have happened. */
24 gapThresholdMinutes: number
25 /** Keep this many most-recent compactable tool results.
26 * When set, takes priority over any default; older results are cleared. */
27 keepRecent: number
28}
29
30const TIME_BASED_MC_CONFIG_DEFAULTS: TimeBasedMCConfig = {
31 enabled: false,
32 gapThresholdMinutes: 60,
33 keepRecent: 5,
34}
35
36export function getTimeBasedMCConfig(): TimeBasedMCConfig {
37 // Hoist the GB read so exposure fires on every eval path, not just when
38 // the caller's other conditions (querySource, messages.length) pass.
39 return getFeatureValue_CACHED_MAY_BE_STALE<TimeBasedMCConfig>(
40 'tengu_slate_heron',
41 TIME_BASED_MC_CONFIG_DEFAULTS,
42 )
43}