first-board-overnight

first-board-overnight is a skill for Claude Code, Codex from Fize/mmtickerlab. It costs 116 tokens per session (1,113 once invoked), scanned A, original, MIT.

A decision workflow for simulating an overnight strategy based on auditable Chinese A-share market data. It evaluates the day's first-limit-up effect, selects candidates, records BUY, WATCH, or NOTRADE decisions, plans next-day exits, and reviews simulated trades.

In plain words
What is it for?
Assessing first-limit-up stocks, planning simulated T+1 exits, and reviewing simulated overnight trades with the market, sim-trade, and plan-review tools.
Why use it?
It provides evidence-based trade decisions while keeping the process separate from real trading and unsupported backtests.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/fize/mmtickerlab/first-board-overnight
Any agent
npx skills add Fize/mmtickerlab --skill first-board-overnight
Clone the repo
git clone --depth 1 https://github.com/Fize/mmtickerlab

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for first-board-overnight

README.md
[![agentmods](https://agentmods.dev/badge/skills/fize/mmtickerlab/first-board-overnight.svg)](https://agentmods.dev/skills/fize/mmtickerlab/first-board-overnight)
Your own site
<a href="https://agentmods.dev/skills/fize/mmtickerlab/first-board-overnight"><img src="https://agentmods.dev/badge/skills/fize/mmtickerlab/first-board-overnight.svg" alt="Measured on agentmods" height="20"></a>
Per session 116 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,113 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00116 $0.01113
Opus 5 $0.00058 $0.00557
Sonnet 5 $0.00023 $0.00223
Haiku 4.5 $0.00012 $0.00111

Measured today against content hash 445a69329789, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

first-board-overnight scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/render_chart.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

first-board-overnight/SKILL.md · 49 lines

What it actually says

First Board Overnight

把本技能作为策略决策层。让 market 提供数据,让 sim-trade 执行和记账,让 plan-review 提供通用盘前、盘中、盘后证据。不要在本技能中猜测行情、伪造成交或绕过任何数据门禁。

执行工作流

  1. 明确任务阶段:candidate_reviewentry_decisionexit_plantrade_review
  2. 读取 references/strategy.md,确认策略目标、边界和市场环境门禁。
  3. 读取 references/data-acquisition.md,盘点现有证据并主动获取缺失的可恢复数据。缓存不存在不等于数据不可用。
  4. 读取 references/evidence-contract.md,区分直接证据、可重建证据和不可重建证据。
  5. 获取完成后再定级:执行级证据完整为 READY;历史量价研究可完成但不能证明当时盘口或成交为 RESEARCH_ONLY;获取失败或连研究结论也无法支持才返回 BLOCKED
  6. 分析入场时读取 references/entry-policy.md;分析 T+1 退出时读取 references/exit-policy.md
  7. 涉及仓位或委托时读取 references/risk-policy.md。只有用户明确要求模拟下单且 status: READYdecision: BUY 时才调用 sim-trade;分析请求以及 BLOCKEDRESEARCH_ONLYWATCHNO_TRADE 结论不得创建委托。
  8. 完成交易后读取 references/review-schema.md,按决策时证据复盘,不使用结果反向改写原始理由。

决策纪律

  • 始终先判断策略环境,再判断板块和个股;不要因单票盘口强而跳过环境门禁。
  • 允许并优先保留 NO_TRADE。候选数量不是交易目标。
  • 把板块地位、换手质量和资金合力标记为有证据的解释,不冒充可直接观测的事实。
  • 不把固定时刻、市值、换手率、封单比例或止损比例视为所谓北京炒家的原始规则。未经样本验证的数值只能作为实验参数。
  • 不宣称复刻任何个人的盘感或真实收益。本技能定义的是可验证的“首板隔夜实验策略”。
  • 普通 A 股当日买入后次一交易日才可卖出;不得称为 T+0。
  • 主动获取历史日线、分钟 K 线和技术指标来判断趋势、位置与量价状态;必要时使用 scripts/render_chart.py 绘制图表。
  • 不基于收盘快照生成盘中可成交的入场决定,不使用当前数据回填历史盘口或成交事实。
  • 不把涨停视为必然可买。以 sim-trade 返回的实际订单状态为准。

输出契约

每次策略判断必须输出:

  1. as_of:交易日期、阶段和数据时间戳;
  2. statusREADYRESEARCH_ONLYBLOCKED
  3. market_regimeFAVORABLEMIXEDUNFAVORABLEINSUFFICIENT_EVIDENCE
  4. decisionBUYWATCHNO_TRADEEXIT_PLAN
  5. evidence:逐条区分事实、解释和假设;
  6. counterevidence:最强反证与失效条件;
  7. risk_plan:仓位上限、最坏可接受损失和退出触发条件;
  8. executionNOT_REQUESTEDNOT_ATTEMPTED 及原因,或 sim-trade 的真实订单 ID、状态与未成交数量;RESEARCH_ONLY 永远不得执行;
  9. unknowns:当前未采集或系统不支持的字段。

不得只给总分。若使用评分,必须同时展示构成证据、反证和未知项。

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today Changed · +1 lines 445a69329789
  2. 5d ago First seen · 48 lines · 116 tokens per session scan A e8d84258ae99

Subscribe to this mod's changes

first-board-overnight is a skill published in the GitHub repository Fize/mmtickerlab (5 stars, last pushed yesterday), licensed MIT. It adds 116 tokens to every session and 1,113 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.