forked from
oppi.li/claude-code
source dump of claude code
1import { feature } from 'bun:bundle'
2import { getFeatureValue_CACHED_WITH_REFRESH } from '../../services/analytics/growthbook.js'
3import { DEFAULT_CRON_JITTER_CONFIG } from '../../utils/cronTasks.js'
4import { isEnvTruthy } from '../../utils/envUtils.js'
5
6const KAIROS_CRON_REFRESH_MS = 5 * 60 * 1000
7
8export const DEFAULT_MAX_AGE_DAYS =
9 DEFAULT_CRON_JITTER_CONFIG.recurringMaxAgeMs / (24 * 60 * 60 * 1000)
10
11/**
12 * Unified gate for the cron scheduling system. Combines the build-time
13 * `feature('AGENT_TRIGGERS')` flag (dead code elimination) with the runtime
14 * `tengu_kairos_cron` GrowthBook gate on a 5-minute refresh window.
15 *
16 * AGENT_TRIGGERS is independently shippable from KAIROS — the cron module
17 * graph (cronScheduler/cronTasks/cronTasksLock/cron.ts + the three tools +
18 * /loop skill) has zero imports into src/assistant/ and no feature('KAIROS')
19 * calls. The REPL.tsx kairosEnabled read is safe:
20 * kairosEnabled is unconditionally in AppStateStore with default false, so
21 * when KAIROS is off the scheduler just gets assistantMode: false.
22 *
23 * Called from Tool.isEnabled() (lazy, post-init) and inside useEffect /
24 * imperative setup, never at module scope — so the disk cache has had a
25 * chance to populate.
26 *
27 * The default is `true` — /loop is GA (announced in changelog). GrowthBook
28 * is disabled for Bedrock/Vertex/Foundry and when DISABLE_TELEMETRY /
29 * CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC are set; a `false` default would
30 * break /loop for those users (GH #31759). The GB gate now serves purely as
31 * a fleet-wide kill switch — flipping it to `false` stops already-running
32 * schedulers on their next isKilled poll tick, not just new ones.
33 *
34 * `CLAUDE_CODE_DISABLE_CRON` is a local override that wins over GB.
35 */
36export function isKairosCronEnabled(): boolean {
37 return feature('AGENT_TRIGGERS')
38 ? !isEnvTruthy(process.env.CLAUDE_CODE_DISABLE_CRON) &&
39 getFeatureValue_CACHED_WITH_REFRESH(
40 'tengu_kairos_cron',
41 true,
42 KAIROS_CRON_REFRESH_MS,
43 )
44 : false
45}
46
47/**
48 * Kill switch for disk-persistent (durable) cron tasks. Narrower than
49 * {@link isKairosCronEnabled} — flipping this off forces `durable: false` at
50 * the call() site, leaving session-only cron (in-memory, GA) untouched.
51 *
52 * Defaults to `true` so Bedrock/Vertex/Foundry and DISABLE_TELEMETRY users get
53 * durable cron. Does NOT consult CLAUDE_CODE_DISABLE_CRON (that kills the whole
54 * scheduler via isKairosCronEnabled).
55 */
56export function isDurableCronEnabled(): boolean {
57 return getFeatureValue_CACHED_WITH_REFRESH(
58 'tengu_kairos_cron_durable',
59 true,
60 KAIROS_CRON_REFRESH_MS,
61 )
62}
63
64export const CRON_CREATE_TOOL_NAME = 'CronCreate'
65export const CRON_DELETE_TOOL_NAME = 'CronDelete'
66export const CRON_LIST_TOOL_NAME = 'CronList'
67
68export function buildCronCreateDescription(durableEnabled: boolean): string {
69 return durableEnabled
70 ? 'Schedule a prompt to run at a future time — either recurring on a cron schedule, or once at a specific time. Pass durable: true to persist to .claude/scheduled_tasks.json; otherwise session-only.'
71 : 'Schedule a prompt to run at a future time within this Claude session — either recurring on a cron schedule, or once at a specific time.'
72}
73
74export function buildCronCreatePrompt(durableEnabled: boolean): string {
75 const durabilitySection = durableEnabled
76 ? `## Durability
77
78By default (durable: false) the job lives only in this Claude session — nothing is written to disk, and the job is gone when Claude exits. Pass durable: true to write to .claude/scheduled_tasks.json so the job survives restarts. Only use durable: true when the user explicitly asks for the task to persist ("keep doing this every day", "set this up permanently"). Most "remind me in 5 minutes" / "check back in an hour" requests should stay session-only.`
79 : `## Session-only
80
81Jobs live only in this Claude session — nothing is written to disk, and the job is gone when Claude exits.`
82
83 const durableRuntimeNote = durableEnabled
84 ? 'Durable jobs persist to .claude/scheduled_tasks.json and survive session restarts — on next launch they resume automatically. One-shot durable tasks that were missed while the REPL was closed are surfaced for catch-up. Session-only jobs die with the process. '
85 : ''
86
87 return `Schedule a prompt to be enqueued at a future time. Use for both recurring schedules and one-shot reminders.
88
89Uses standard 5-field cron in the user's local timezone: minute hour day-of-month month day-of-week. "0 9 * * *" means 9am local — no timezone conversion needed.
90
91## One-shot tasks (recurring: false)
92
93For "remind me at X" or "at <time>, do Y" requests — fire once then auto-delete.
94Pin minute/hour/day-of-month/month to specific values:
95 "remind me at 2:30pm today to check the deploy" → cron: "30 14 <today_dom> <today_month> *", recurring: false
96 "tomorrow morning, run the smoke test" → cron: "57 8 <tomorrow_dom> <tomorrow_month> *", recurring: false
97
98## Recurring jobs (recurring: true, the default)
99
100For "every N minutes" / "every hour" / "weekdays at 9am" requests:
101 "*/5 * * * *" (every 5 min), "0 * * * *" (hourly), "0 9 * * 1-5" (weekdays at 9am local)
102
103## Avoid the :00 and :30 minute marks when the task allows it
104
105Every user who asks for "9am" gets \`0 9\`, and every user who asks for "hourly" gets \`0 *\` — which means requests from across the planet land on the API at the same instant. When the user's request is approximate, pick a minute that is NOT 0 or 30:
106 "every morning around 9" → "57 8 * * *" or "3 9 * * *" (not "0 9 * * *")
107 "hourly" → "7 * * * *" (not "0 * * * *")
108 "in an hour or so, remind me to..." → pick whatever minute you land on, don't round
109
110Only use minute 0 or 30 when the user names that exact time and clearly means it ("at 9:00 sharp", "at half past", coordinating with a meeting). When in doubt, nudge a few minutes early or late — the user will not notice, and the fleet will.
111
112${durabilitySection}
113
114## Runtime behavior
115
116Jobs only fire while the REPL is idle (not mid-query). ${durableRuntimeNote}The scheduler adds a small deterministic jitter on top of whatever you pick: recurring tasks fire up to 10% of their period late (max 15 min); one-shot tasks landing on :00 or :30 fire up to 90 s early. Picking an off-minute is still the bigger lever.
117
118Recurring tasks auto-expire after ${DEFAULT_MAX_AGE_DAYS} days — they fire one final time, then are deleted. This bounds session lifetime. Tell the user about the ${DEFAULT_MAX_AGE_DAYS}-day limit when scheduling recurring jobs.
119
120Returns a job ID you can pass to ${CRON_DELETE_TOOL_NAME}.`
121}
122
123export const CRON_DELETE_DESCRIPTION = 'Cancel a scheduled cron job by ID'
124export function buildCronDeletePrompt(durableEnabled: boolean): string {
125 return durableEnabled
126 ? `Cancel a cron job previously scheduled with ${CRON_CREATE_TOOL_NAME}. Removes it from .claude/scheduled_tasks.json (durable jobs) or the in-memory session store (session-only jobs).`
127 : `Cancel a cron job previously scheduled with ${CRON_CREATE_TOOL_NAME}. Removes it from the in-memory session store.`
128}
129
130export const CRON_LIST_DESCRIPTION = 'List scheduled cron jobs'
131export function buildCronListPrompt(durableEnabled: boolean): string {
132 return durableEnabled
133 ? `List all cron jobs scheduled via ${CRON_CREATE_TOOL_NAME}, both durable (.claude/scheduled_tasks.json) and session-only.`
134 : `List all cron jobs scheduled via ${CRON_CREATE_TOOL_NAME} in this session.`
135}