diff --git a/CHANGELOG.md b/CHANGELOG.md
index b6af6bf..742c732 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,17 @@
 
 All notable changes to DeepTrade. Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/) and SemVer.
 
+## [v0.15.1] — 2026-05-27 — 上限 typer<0.26（vendored click 导致 CLI 整树构建失败）
+
+修复一个安装期回归：`deeptrade` 任意命令启动即崩。**Typer 0.26.0 把 click 硬 fork 成自带的 vendored 副本**（`typer/_click/`），并从依赖里删掉了对独立 `click` 的声明。本仓库的 CLI 设计**同时**用了两边：`cli.py::_DeepTradeGroup` 继承 `typer.core.TyperGroup`（>=0.26 走 vendored click），而 `db_cmd(ctx: click.Context)`、插件 pass-through 的裸 `@click.command` 与 `@click.pass_context` 用的是独立 `click`。两个 click 是两个不同的类，Typer 构建命令树时用 `lenient_issubclass(param.annotation, typer._click.Context)` 识别 context 形参，独立的 `click.core.Context` 识别不出来 → 当成普通 CLI 参数 → `RuntimeError: Type not yet supported: <class 'click.core.Context'>`。这会让**整棵命令树**构建失败，任何子命令（用户实测 `plugin upgrade`）都进不去。
+
+dev/CI 没暴露是因为 `uv.lock` 锁的是 typer **0.25.0**（最后一个未 vendor、仍 `click>=8.2.1` 的版本）；只有 `pipx install` 这类按 `typer>=0.12` 重新解析的环境会拉到 0.26.2。
+
+### Fixed
+
+- **`pyproject.toml` 把 `typer>=0.12` 收紧为 `typer>=0.12,<0.26`。** 恢复"Typer 与本仓库共用同一个 click"的不变量。这同时堵住一个潜伏的运行期 bug：插件分发（`deeptrade <plugin_id> …`）从 Typer group 里返回的是独立 click 构造的命令，在 vendored-click Typer 下同样会行为异常。
+- 已有 pipx 安装的临时自救（无需等发布）：`pipx runpip deeptrade-quant install "typer<0.26"` 把 venv 内的 typer 降回 0.25.x 即可恢复。
+
 ## [v0.15.0] — 2026-05-25 — yaml cache_overrides 自动注入（消除"声明僵尸文本"）
 
 修复一个跨插件的契约 bug：插件在 `deeptrade_plugin.yaml::permissions.tushare_apis.cache_overrides` 里声明了某个 Tushare API 的 cache class（例如 `cyq_perf: trade_day_mutable`），但 yaml 只参与安装期校验，**运行时并不会被框架自动注入到 TushareClient**。需要插件作者在调用 `make_tushare_client(cache_overrides=...)` 时显式传一遍同样的 dict —— 一旦插件绕开 helper、直接 `TushareClient(...)`（出于自定义 transport / event_cb / rps 的需要），yaml 声明就完全变成"僵尸文本"，运行时仍会打 `Tushare API 'cyq_perf' has no explicit cache class; defaulting to trade_day_immutable` 的 INFO 警告，且实际使用的也是默认 `trade_day_immutable` 而非声明值。已知 `limit-up-board / accumulation-probe-washout / checkmate` 三个插件都中招。
diff --git a/CLAUDE.md b/CLAUDE.md
index d1c903d..43ed694 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -24,19 +24,20 @@ CI (`.github/workflows/ci.yml`) runs ruff → mypy → pytest → `python -m bui
 
 ## Releasing
 
-The package version lives in **two** places and they MUST be bumped together:
+The package version lives in **three** places and they MUST be bumped together:
 
 - `pyproject.toml::project.version` — what hatchling stamps onto the wheel filename and PyPI metadata. **This is the source of truth for the build.**
 - `deeptrade/__init__.py::__version__` — runtime introspection only.
+- `README.md` version badge (`version-X.Y.Z-blue` in the shields.io URL) — display only, but **`tests/test_version_consistency.py` fails CI if it drifts** from the other two, so a stale badge blocks the release.
 
-Bumping only `__init__.py` will silently produce a wheel with the previous version in its filename and tank the release at PyPI upload (HTTP 400 "File already exists" — PyPI filenames are immutable, you cannot overwrite). Always grep both files before tagging:
+Bumping only `__init__.py` will silently produce a wheel with the previous version in its filename and tank the release at PyPI upload (HTTP 400 "File already exists" — PyPI filenames are immutable, you cannot overwrite). Forgetting the badge fails the test suite before you ever tag. Always grep all three before tagging:
 
 ```bash
-grep -n version pyproject.toml deeptrade/__init__.py
+grep -n version pyproject.toml deeptrade/__init__.py README.md
 ```
 
 Release sequence:
-1. Bump both files + update `CHANGELOG.md` in the same commit (or two adjacent commits).
+1. Bump all three version sources + update `CHANGELOG.md` in the same commit (or two adjacent commits).
 2. Push to main and verify CI green.
 3. `git tag -a vX.Y.Z -m "..."` then `git push origin vX.Y.Z` — the tag push is what triggers `release.yml`.
 
diff --git a/README.md b/README.md
index 299c986..2f11aa9 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 > 📖 **在线文档**：[deeptrade.tiey.ai](https://deeptrade.tiey.ai) — 用户手册 + 开发者手册 + 官方插件目录
 
-[![tests](https://img.shields.io/badge/tests-passing-brightgreen)](#) [![python](https://img.shields.io/badge/python-3.11+-blue)](#) [![license](https://img.shields.io/badge/license-MIT-green)](LICENSE) [![version](https://img.shields.io/badge/version-0.14.0-blue)](CHANGELOG.md)
+[![tests](https://img.shields.io/badge/tests-passing-brightgreen)](#) [![python](https://img.shields.io/badge/python-3.11+-blue)](#) [![license](https://img.shields.io/badge/license-MIT-green)](LICENSE) [![version](https://img.shields.io/badge/version-0.15.1-blue)](CHANGELOG.md)
 
 ## ✨ 主要特性
 
diff --git a/deeptrade/__init__.py b/deeptrade/__init__.py
index a5fb871..916ea91 100644
--- a/deeptrade/__init__.py
+++ b/deeptrade/__init__.py
@@ -2,5 +2,5 @@
 
 from __future__ import annotations
 
-__version__ = "0.15.0"
+__version__ = "0.15.1"
 __all__ = ["__version__"]
diff --git a/pyproject.toml b/pyproject.toml
index f6f3442..08ca7a5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "deeptrade-quant"
-version = "0.15.0"
+version = "0.15.1"
 description = "LLM-driven A-share (Shanghai/Shenzhen main board) stock screening CLI"
 readme = "README.md"
 requires-python = ">=3.11"
@@ -13,7 +13,14 @@ license = { text = "MIT" }
 keywords = ["stock", "a-share", "llm", "tushare", "deepseek", "duckdb", "cli"]
 
 dependencies = [
-    "typer>=0.12",
+    # Cap below 0.26: Typer 0.26.0 hard-forked its own vendored copy of click
+    # (typer/_click/) and dropped the standalone `click` dependency. This repo
+    # subclasses typer.core.TyperGroup *and* uses standalone click directly
+    # (raw @click.command plugin pass-through, @click.pass_context,
+    # click.Context). That design assumes Typer and the app share ONE click;
+    # under >=0.26 the two click copies diverge and the command tree fails to
+    # build ("Type not yet supported: <class 'click.core.Context'>").
+    "typer>=0.12,<0.26",
     "questionary>=2.0",
     "rich>=13.7",
     "duckdb>=1.0",
diff --git a/uv.lock b/uv.lock
index d1cea73..8de7828 100644
--- a/uv.lock
+++ b/uv.lock
@@ -315,7 +315,7 @@ wheels = [
 
 [[package]]
 name = "deeptrade-quant"
-version = "0.15.0"
+version = "0.15.1"
 source = { editable = "." }
 dependencies = [
     { name = "click" },
@@ -370,7 +370,7 @@ requires-dist = [
     { name = "tenacity", specifier = ">=8.0" },
     { name = "tushare", marker = "extra == 'dev'", specifier = ">=1.4" },
     { name = "tushare", marker = "extra == 'plugin-runtime'", specifier = ">=1.4" },
-    { name = "typer", specifier = ">=0.12" },
+    { name = "typer", specifier = ">=0.12,<0.26" },
     { name = "types-pyyaml", marker = "extra == 'dev'", specifier = ">=6.0" },
 ]
 provides-extras = ["plugin-runtime", "dev"]