Nonlinear Calendar
https://balance-engine.vercel.app/api/mcp ↗
Description
Nonlinear Calendar: this year’s months fold onto the previous 12 years. No key to try.
What our measurements say
Nonlinear Calendar is a remote MCP server published at balance-engine.vercel.app. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 396 ms, placing it among the faster endpoints. It offers a narrow, focused set of 12 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Agent readability score
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| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-13 01:33:33 | Legacy | 400 | 319 | 200 | 396 | 2025-11-25 |
| 2026-09-12 23:31:36 | Legacy | 400 | 431 | 200 | 303 | 2025-11-25 |
| 2026-09-12 21:29:15 | Legacy | 400 | 542 | 200 | 751 | 2025-11-25 |
| 2026-09-12 19:27:29 | Legacy | 400 | 281 | 200 | 296 | 2025-11-25 |
| 2026-09-12 17:24:09 | Legacy | 400 | 242 | 200 | 223 | 2025-11-25 |
| 2026-09-12 15:21:42 | Legacy | 400 | 1115 | 200 | 1084 | 2025-11-25 |
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 182ms → warm 160ms (penalty 22ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
today_rhythmThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 今天节奏怎么样 / 今天势能怎么样 / 今天干支是什么 / 今天适不适合签约开会发版 / 今天流通怎么样 / 该不该推进某事 / what is today's rhythm. First line is the #be time atom (keep 干支 in Chinese). Then east pillars, this month’s fold year (same pillar), month posture × west tightness as do/don't, plus the daily west almanac. Always surface the fold-year line and ask what they lived that year. Public · local · no API key. Preview ≠ prediction.
datestringhourstringlocalestring
month_briefThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 这个月势能怎么样 / 这个月该打磨还是该收 / 这个月哪天发布 / 这个月节奏怎么样 / 流月基调 / 做不做某事 / 哪几天适合上线 / which days to publish. First line is the #be time atom (keep 干支 in Chinese). Then this month’s fold year (same pillar), baseline tone, dated sky marks, and a do/drop list. Always surface the fold-year line and ask what they lived that year. Public · local · no API key. Preview ≠ prediction.
monthstringlocalestring
solar_termsThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 二十四节气 / 今年节气表 / 白露是哪天 / 立春哪天 / 夏至冬至是什么时候 / 下一个节气 / 24 solar terms / when is White Dew / next solar term / jieqi. Returns the full 24-term table for any year 1900–2100: civil date + exact term-boundary time (Asia/Shanghai), plus the next upcoming term. Public · local · no API key. Preview ≠ prediction.
yearintegerlocalestring
date_lookupThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 黄历 / 老黄历 / 宜忌 / 黄道吉日 / 今天吉不吉利 / 某日适合结婚搬家开业签约吗 / 农历是多少 / 阴历 / 某天的干支四柱 / 属相生肖 / 某日是什么节气 / 1984-02-04 是什么日柱 / chinese almanac / tong shu / auspicious day / yi ji / lunar date / day pillar of any date / zodiac. Works for ANY civil date 1900–2100. Returns lunar + ganzhi, then three lanes from the same rules engine: body (sleep/load), work (what to push / hold), plan (this month’s fold year + posture). Do not read this as 宜忌 / lucky-day / 吉凶. Do not mention marriage, burial, or god directions. Public · local · no API key. Preview ≠ prediction.
datestringhourstringlocalestring
sky_windowThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 未来两周有什么天象 / 新月哪天 / 日食哪天 / 接下来有没有逆行 / what sky events are coming. Lists dated L1 sky marks (new/full moon, eclipse, ingress, stations). Public · local · no API key. Max span 45 days. Preview ≠ prediction.
fromstringtostringlocalestring
body_rhythmThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 今晚要不要提前睡 / 今天该不该加练 / 现在这个时辰适不适合动 / body energy / train or rest. Public body-energy rehearsal from solar term + hour + month posture × sky tightness. Not a diagnosis. Adjust ≠ infuse energy. Public · local · no API key. Preview ≠ prediction.
datestringhourstringlocalestring
energy_adjustThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 能量怎么调 / 个人今天该推还是该收 / 团队这周该不该硬上线 / personal vs company rhythm. Same engine, two seats: personal (sleep/load) or org (window push vs hold). Not HR scoring, not medical treatment. Public · local · no API key. Preview ≠ prediction.
seatstringdatestringmonthstringhourstringlocalestring
activity_windowThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 今天什么时候适合运动 / 今天哪个时辰适合深工 / 什么时候开会 / 什么时候练 / 什么时候发版 / 什么时候该休息 / activity window / when to exercise. Maps month posture × twelve hours × body load to 2–3 clock windows for task=deep_work|train|meet|ship|rest. Windows are suggested slots, not a guarantee. Not meds, not glucose, not a diagnosis. Public · local · no API key. Preview ≠ prediction.
datestringtaskstringlocalestring
time_foldThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 时间折叠 / 现在叠的是哪一年 / 这个月对应哪一年 / time folding / nonlinear time / 甲午月是哪一年. First line is the #be time atom (keep 干支 in Chinese). Then this month’s fold year (same pillar). Ask the user what they lived that year — do not invent a biography. Then the Wuhu group and next year’s full table when the year is about to change. Then the 12-row table. Same table for everyone. Dayun / org dual natal only places the chapter. Public · local · no API key. Preview ≠ prediction.
datestringmonthstringcompactbooleanlocalestring
people_rosterThis tool reads a user-named people roster. Do not invent people or merge two ids. Same role ≠ same person. Call when the user names a person, asks 这个人是谁 / 西交和宁波是不是同一个 / 花名册 / people roster, or before telling a story that involves named people. Pass people=[{name, relation, id?}] from what the user just said. If empty, ask the user to name people (name + one-line relation) — do not invent a biography. Optional env PEOPLE_ROSTER_JSON when the user keeps a local roster. Not L1. Public · no API key.
peoplearraylocalestring
personal_dayThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 我今天怎么样 / 我今天下午适不适合见面 / 未时基调 / 我的日主和今天什么关系 / my day. Personalized: day-master vs today's stem (十神) + optional hour pillar. Requires BALANCE_API_KEY + birth profile. Empty key → error personal_timetable_requires_key; use free tools instead. Not a fortune verdict.
datestringhourstringlocalestringbirthobject
personal_monthThis tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. Call when the user asks 我这个月怎么样 / 我哪周该推进 / 我这个月适不适合上线 / my month. Personalized flow-month: day-master vs month stem, dated sky, sandbox assumptions, fold-memory prompts. Requires BALANCE_API_KEY + birth profile. Empty key → error personal_timetable_requires_key; use free tools instead. Not a fortune verdict.
monthstringdatestringlocalestringbirthobject
Availability history
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Era history
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
Response time history
The two probe legs separately: modern server/discover and legacy initialize.
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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