Add daily derived data pipeline

README.md

@@ -120,6 +120,49 @@ partitions already written. Pass the **dataset directory** (`{output_dir}/{unive
 as `--data-path` to later phases — `pd.read_parquet` reads the whole partitioned
 set. Symbols use the internal `sh600000` / `sz000001` form (exchange prefix + code).
 
+### `derived` — daily custom/derived data
+
+Derived data is daily-only v1 research data keyed by `symbol_id,date`, with one
+or more numeric value columns. It can come from user CSV/parquet files or Python
+plugins, and is written as a single parquet file at `derived/{name}.pq`.
+
+The validator normalizes `date` to the trading day, requires unique
+`symbol_id,date` keys, rejects duplicate columns, and rejects non-numeric value
+columns. Alpha computation consumes derived data through the existing
+`--feature-path` flag.
+
+```bash
+# Validate a user file without writing output.
+uv run python cli.py derived validate --input-path vendor_factor.csv
+
+# Ingest CSV/parquet into the canonical derived/ layout.
+uv run python cli.py derived ingest \
+    --input-path vendor_factor.csv \
+    --derived-name vendor_factor
+
+# List built-in and external derived-data plugin types.
+uv run python cli.py derived list
+uv run python cli.py derived list --derived-module path/to/my_derived.py
+
+# Compute a derived file from daily and/or minute inputs.
+uv run python cli.py derived compute \
+    --minute-path data/minute_bars/sh600000 \
+    --daily-path data/daily_bars/sh600000 \
+    --derived-type minute_daily_summary \
+    --derived-name minute_summary
+
+# Join derived columns into a feature-aware alpha.
+uv run python cli.py alpha compute \
+    --data-path data/daily_bars/sh600000 \
+    --feature-path derived/minute_summary.pq \
+    --alpha-type my_feature_aware_alpha \
+    --alpha-name my_run
+```
+
+For compatibility, `feature list` and `feature compute` remain available and
+delegate to the same derived-data registry. Existing `features/*.pq` files are
+still valid `--feature-path` inputs when they satisfy the daily numeric contract.
+
 ### `alpha list` — show registered alpha types
 
 ```bash
@@ -137,6 +180,7 @@ uv run python cli.py alpha list --alpha-module path/to/my_alpha.py   # include a
 | `--output-dir` | `alphas` | Output directory |
 | `--lookback` | `5` | Lookback days (passed to alphas that accept it) |
 | `--vol-window` | `20` | Volatility window (passed to alphas that accept it) |
+| `--feature-path` | — | Daily derived/feature parquet file or dataset to left-join on `symbol_id,date`; repeatable |
 | `--alpha-module` | — | External module(s) to import first; repeatable. Dotted path or `.py` file |
 | `--param` | — | Extra constructor param as `name=value`; repeatable |
 
@@ -370,6 +414,8 @@ between phases (data is stored long/tidy):
   OHLC scale under `qfq`/`hfq`; `turn` is turnover %, `pctChg` daily % change,
   `tradestatus`/`isST` are 0/1 flags, and `peTTM`/`pbMRQ`/`psTTM`/`pcfNcfTTM` are
   baostock valuation ratios.)
+- **derived** (`DERIVED_KEY_COLUMNS` + values): required keys `symbol_id, date`;
+  value columns are user/plugin-defined and must be numeric in v1.
 - **alpha** (`ALPHA_COLUMNS`): `symbol_id, date, alpha_name, weight`
 - **combo** (`COMBO_COLUMNS`): `symbol_id, date, combo_name, weight`
 - **portfolio positions** (`POSITION_COLUMNS`): `symbol_id, date, portfolio_name, target_weight, target_value, target_shares, position_shares, position_value, price`
@@ -387,8 +433,11 @@ directory yields an extra `month` (`YYYY-MM`) partition column on top of
 
 - `cli.py` — entry point wiring the file-based phases together
 - `pipeline/data/` — universe resolution + download → `data/daily_bars/{universe}/month=YYYY-MM/*.pq`
+- `pipeline/derived/` — daily derived-data ingestion, validation, plugin registry,
+  and built-in derived computations → `derived/*.pq`
 - `pipeline/alpha/` — `base.py` (`BaseAlpha`), `registry.py` (factory + plugin loader),
   `library/` (built-in alphas), `compute.py` (`compute_alpha` / `evaluate_alpha`)
+- `pipeline/features/` — compatibility wrappers for the derived-data registry
 - `pipeline/combo/` — alpha combination → `combos/*.pq`
 - `pipeline/portfolio/` — construction, A-share lot/limit rules, constraints,
   reference next-open simulator, and research metrics
@@ -410,6 +459,9 @@ constructed positions, fills/costs, P&L, and target-weight research metrics.
 - [x] **Reference execution simulation** — next-open fills over constructed
   `position_shares`, with suspension, price-limit, volume-cap, transaction-cost,
   and slippage controls.
+- [x] **Derived/custom daily data ("Level 2")** — ingest user CSV/parquet files
+  or compute plugin outputs as validated numeric daily datasets under
+  `derived/{name}.pq`; alpha joins continue through `--feature-path`.
 - [ ] **Optional Backtrader adapter** — Backtrader is available as the
   `backtrader` extra for possible future event-driven/broker-style experiments,
   but it is not part of the current canonical portfolio workflow.
@@ -419,3 +471,29 @@ constructed positions, fills/costs, P&L, and target-weight research metrics.
   and intraday VWAP. These need a tick / L1–L2 quote feed (typically a paid or
   brokerage data tier); the free daily sources here only expose daily bars, so
   this is a separate data phase rather than extra columns on the daily schema.
+
+### Additional TODOs
+
+The following items are intended extensions beyond the current daily
+alpha-to-portfolio pipeline:
+
+- **Long-only portfolio mode** — add a construction option that converts
+  alpha/combo weights into a long-only book while preserving existing lot,
+  price, suspension, and volume-cap handling.
+- **Index-short hedging mode** — support portfolios that hold long A-share
+  names while shorting an index or index proxy for market exposure control.
+- **Expanded universe presets** — add explicit universe aliases for CSI 300,
+  CSI 500, CSI 1000, and CSI 1800, while keeping file-based and comma-separated
+  custom universes available.
+- **Categorical derived data** — extend the numeric-only derived-data v1 contract
+  to support categorical inputs such as industry classifications. In this
+  project, "Level 2" means customized second-level research data produced by
+  users or plugins; it does not necessarily mean exchange order-book/L2 quote
+  feeds.
+- **Minute bar data** — continue extending the raw minute-bar and feature
+  workflow. The initial Baostock 5-minute download and daily feature plugin path
+  exist; intraday execution and replacing canonical daily bars remain out of
+  scope unless explicitly added later.
+- **Industry data** — add industry classification inputs for filtering,
+  grouping, exposure reporting, neutralization, or industry-aware portfolio
+  construction.

cli.py

@@ -3,6 +3,7 @@
 
 Phases:
     data      — Download daily bars to parquet
+    derived   — Ingest or compute daily derived data
     alpha     — Compute alpha weights from data
     feature   — Compute daily features from minute bars
     combo     — Combine alphas into a single weight
@@ -14,6 +15,7 @@ import logging
 import click
 
 from pipeline.data.cli import data
+from pipeline.derived.cli import derived
 from pipeline.alpha.cli import alpha
 from pipeline.features.cli import feature
 from pipeline.combo.cli import combo
@@ -41,6 +43,7 @@ def cli(log_level):
 
 
 cli.add_command(data)
+cli.add_command(derived)
 cli.add_command(alpha)
 cli.add_command(feature)
 cli.add_command(combo)

docs/minute_bar_data.md

@@ -16,17 +16,20 @@ The default layout is:
 data/minute_bars/{universe}/frequency=5m/month=YYYY-MM/*.pq
 ```
 
-Feature plugins can aggregate those bars to daily `symbol_id,date` feature
+Derived-data plugins can aggregate those bars to daily `symbol_id,date` numeric
 files, for example:
 
 ```bash
-uv run python cli.py feature compute \
+uv run python cli.py derived compute \
     --minute-path data/minute_bars/sh600000 \
     --daily-path data/daily_bars/sh600000 \
-    --feature-type minute_daily_summary \
+    --derived-type minute_daily_summary \
-    --feature-name minute_summary
+    --derived-name minute_summary
 ```
 
+The legacy `feature compute` command delegates to the same derived-data
+registry and remains available for existing scripts.
+
 ## Daily vs Minute Reconciliation
 
 Baostock's daily raw bars and 5-minute raw bars are close, but they should not

pipeline/alpha/cli.py

@@ -58,7 +58,7 @@ def list_(alpha_modules):
 @click.option("--vol-window", default=20, type=int, help="Volatility window (reversal_vol only)")
 @click.option(
     "--feature-path", "feature_paths", multiple=True,
-    help="Daily feature parquet file/dataset to left-join on symbol_id,date (repeatable)",
+    help="Daily derived/feature parquet file or dataset to left-join on symbol_id,date (repeatable)",
 )
 @click.option(
     "--alpha-module", "alpha_modules", multiple=True,

pipeline/alpha/compute.py

@@ -15,7 +15,11 @@ import pandas as pd
 
 from pipeline.alpha.registry import get_alpha
 from pipeline.common.schema import ALPHA_COLUMNS
-from pipeline.features.compute import FEATURE_KEY_COLUMNS, read_feature_frames, validate_feature_frame
+from pipeline.derived.compute import (
+    DERIVED_KEY_COLUMNS,
+    read_derived_frames,
+    validate_derived_frame,
+)
 
 logger = logging.getLogger(__name__)
 
@@ -40,15 +44,15 @@ def join_feature_frames(
     data: pd.DataFrame,
     feature_frames: Iterable[pd.DataFrame],
 ) -> pd.DataFrame:
-    """Left-join validated daily feature frames onto long daily data."""
+    """Left-join validated daily derived/feature frames onto long daily data."""
     out = data.copy()
     out["date"] = pd.to_datetime(out["date"])
     existing = set(out.columns)
     joined_cols: list[str] = []
 
     for frame in feature_frames:
-        features = validate_feature_frame(frame)
+        features = validate_derived_frame(frame)
-        feature_cols = [col for col in features.columns if col not in FEATURE_KEY_COLUMNS]
+        feature_cols = [col for col in features.columns if col not in DERIVED_KEY_COLUMNS]
         overlap = sorted(existing.intersection(feature_cols))
         if overlap:
             raise ValueError(
@@ -56,7 +60,7 @@ def join_feature_frames(
             )
         out = out.merge(
             features,
-            on=FEATURE_KEY_COLUMNS,
+            on=DERIVED_KEY_COLUMNS,
             how="left",
             validate="many_to_one",
         )
@@ -171,7 +175,7 @@ def compute_alpha(
     """
     feature_inputs: list[pd.DataFrame] = []
     if feature_paths:
-        feature_inputs.extend(read_feature_frames(feature_paths))
+        feature_inputs.extend(read_derived_frames(feature_paths))
     if feature_frames:
         feature_inputs.extend(feature_frames)
     if feature_inputs:

pipeline/common/schema.py

@@ -44,6 +44,13 @@ MINUTE_BAR_COLUMNS: Final[list[str]] = [
     "adjustflag",    # str: baostock adjustment flag; '3' for raw/unadjusted
 ]
 
+# Required key columns for daily derived-data parquet files. Value columns are
+# user/plugin-defined and must be numeric.
+DERIVED_KEY_COLUMNS: Final[list[str]] = [
+    "symbol_id",     # str
+    "date",          # date: normalized daily timestamp
+]
+
 # Required columns for alpha parquet files.
 # Alphas are position WEIGHTS: positive=long, negative=short.
 ALPHA_COLUMNS: Final[list[str]] = [

pipeline/derived/__init__.py

@@ -0,0 +1,2 @@
+"""Daily derived-data plugin package."""
+

pipeline/derived/base.py

@@ -0,0 +1,38 @@
+"""Base class for daily derived-data plugins."""
+
+from abc import ABC, abstractmethod
+
+import pandas as pd
+
+
+class BaseDerivedData(ABC):
+    """Compute daily, symbol-keyed numeric derived data.
+
+    Derived-data plugins may use daily bars, minute bars, or both as inputs, but
+    they must always return daily rows keyed by ``symbol_id,date``.
+    """
+
+    #: Unique registry key. Every concrete derived-data plugin must set this.
+    name: str = ""
+
+    @abstractmethod
+    def compute(
+        self,
+        daily: pd.DataFrame | None = None,
+        minute: pd.DataFrame | None = None,
+    ) -> pd.DataFrame:
+        """Compute daily derived data.
+
+        Args:
+            daily: Optional daily market data.
+            minute: Optional raw minute bars.
+
+        Returns:
+            DataFrame with ``symbol_id``, ``date``, and one or more numeric
+            derived-data columns.
+        """
+
+    def __repr__(self) -> str:
+        params = ", ".join(f"{k}={v!r}" for k, v in vars(self).items())
+        return f"{type(self).__name__}({params})"
+

pipeline/derived/cli.py

@@ -0,0 +1,145 @@
+"""CLI for daily derived-data ingestion and computation."""
+
+import click
+import pandas as pd
+
+from pipeline.derived.compute import (
+    DERIVED_KEY_COLUMNS,
+    compute_derived,
+    read_derived_frame,
+    write_derived_frame,
+)
+from pipeline.derived.registry import (
+    available_derived,
+    load_derived_module,
+)
+
+
+@click.group(name="derived")
+def derived():
+    """Ingest, compute, and validate daily derived data."""
+
+
+def _coerce(value: str):
+    """Best-effort coercion of a CLI string to int, then float, else str."""
+    for cast in (int, float):
+        try:
+            return cast(value)
+        except ValueError:
+            continue
+    return value
+
+
+def _parse_params(pairs: tuple[str, ...]) -> dict:
+    """Parse repeated ``name=value`` options into a params dict."""
+    params: dict = {}
+    for pair in pairs:
+        if "=" not in pair:
+            raise click.BadParameter(f"--param must be name=value, got '{pair}'")
+        key, value = pair.split("=", 1)
+        params[key.strip()] = _coerce(value.strip())
+    return params
+
+
+def _read_optional_parquet(path: str | None) -> pd.DataFrame | None:
+    return None if path is None else pd.read_parquet(path)
+
+
+def _summarize(result: pd.DataFrame) -> str:
+    value_cols = [col for col in result.columns if col not in DERIVED_KEY_COLUMNS]
+    return f"{len(result):,} rows, {len(value_cols)} columns"
+
+
+@derived.command("list")
+@click.option(
+    "--derived-module", "derived_modules", multiple=True,
+    help="External module(s) to import first (dotted path or .py file)",
+)
+def list_(derived_modules):
+    """List the registered derived-data plugin types."""
+    for spec in derived_modules:
+        load_derived_module(spec)
+    for name in available_derived():
+        click.echo(name)
+
+
+@derived.command("validate")
+@click.option("--input-path", required=True, help="CSV/parquet file or parquet dataset to validate")
+def validate(input_path):
+    """Validate a daily derived-data file without writing output."""
+    try:
+        result = read_derived_frame(input_path)
+    except Exception as exc:
+        raise click.ClickException(str(exc)) from exc
+    click.echo(f"Valid derived data: {input_path}  ({_summarize(result)})")
+
+
+@derived.command("ingest")
+@click.option("--input-path", required=True, help="CSV/parquet file to ingest")
+@click.option("--derived-name", required=True, help="Name for this derived-data output file")
+@click.option("--output-dir", default="derived", help="Directory to save derived parquet")
+def ingest(input_path, derived_name, output_dir):
+    """Ingest a user-provided daily derived-data CSV/parquet file."""
+    try:
+        result = read_derived_frame(input_path)
+        out_path = write_derived_frame(result, derived_name, output_dir=output_dir)
+    except Exception as exc:
+        raise click.ClickException(str(exc)) from exc
+    click.echo(f"Saved derived data: {out_path}  ({_summarize(result)})")
+
+
+@derived.command("compute")
+@click.option("--daily-path", default=None, help="Optional daily data parquet/dataset")
+@click.option("--minute-path", default=None, help="Optional minute parquet/dataset")
+@click.option("--derived-type", required=True, help="Registry key of the derived-data plugin")
+@click.option("--derived-name", required=True, help="Name for this derived-data output file")
+@click.option("--output-dir", default="derived", help="Directory to save derived parquet")
+@click.option(
+    "--derived-module", "derived_modules", multiple=True,
+    help="External module(s) to import so their derived-data plugins register",
+)
+@click.option(
+    "--param", "extra_params", multiple=True,
+    help="Extra derived-data constructor param as name=value (repeatable)",
+)
+def compute(
+    daily_path,
+    minute_path,
+    derived_type,
+    derived_name,
+    output_dir,
+    derived_modules,
+    extra_params,
+):
+    """Compute one daily derived-data file from daily and/or minute inputs."""
+    for spec in derived_modules:
+        load_derived_module(spec)
+
+    options = available_derived()
+    if derived_type not in options:
+        raise click.BadParameter(
+            f"Unknown derived-type '{derived_type}'. Available: {options}. "
+            f"Use --derived-module to register an external derived-data plugin.",
+            param_hint="--derived-type",
+        )
+    if daily_path is None and minute_path is None:
+        raise click.UsageError("At least one of --daily-path or --minute-path is required")
+
+    daily = _read_optional_parquet(daily_path)
+    if daily_path:
+        click.echo(f"Loaded daily data: {len(daily):,} rows from {daily_path}")
+    minute = _read_optional_parquet(minute_path)
+    if minute_path:
+        click.echo(f"Loaded minute bars: {len(minute):,} rows from {minute_path}")
+
+    try:
+        result = compute_derived(
+            derived_type=derived_type,
+            daily=daily,
+            minute=minute,
+            **_parse_params(extra_params),
+        )
+        out_path = write_derived_frame(result, derived_name, output_dir=output_dir)
+    except Exception as exc:
+        raise click.ClickException(str(exc)) from exc
+    click.echo(f"Saved derived data: {out_path}  ({_summarize(result)})")

pipeline/derived/compute.py

@@ -0,0 +1,115 @@
+"""Derived-data computation and validation."""
+
+import csv
+import logging
+from pathlib import Path
+from typing import Iterable
+
+import pandas as pd
+from pandas.api.types import is_bool_dtype, is_numeric_dtype
+
+from pipeline.common.schema import DERIVED_KEY_COLUMNS
+from pipeline.derived.registry import get_derived
+
+logger = logging.getLogger(__name__)
+
+
+def validate_derived_frame(derived: pd.DataFrame) -> pd.DataFrame:
+    """Validate and normalize a daily derived-data frame.
+
+    A valid derived frame is keyed by unique ``symbol_id,date`` rows and has at
+    least one numeric value column beyond those keys. Dates are normalized to
+    daily timestamps before duplicate-key checks.
+    """
+    duplicated = derived.columns[derived.columns.duplicated()].tolist()
+    if duplicated:
+        raise ValueError(f"Derived data has duplicate columns: {duplicated}")
+
+    missing = [col for col in DERIVED_KEY_COLUMNS if col not in derived.columns]
+    if missing:
+        raise ValueError(f"Derived data missing required columns: {missing}")
+
+    out = derived.copy()
+    out["date"] = pd.to_datetime(out["date"]).dt.normalize()
+
+    if out.duplicated(DERIVED_KEY_COLUMNS).any():
+        raise ValueError("Derived data has duplicate symbol_id,date rows")
+
+    value_cols = [col for col in out.columns if col not in DERIVED_KEY_COLUMNS]
+    if not value_cols:
+        raise ValueError("Derived data must include at least one value column")
+
+    non_numeric = [
+        col
+        for col in value_cols
+        if is_bool_dtype(out[col]) or not is_numeric_dtype(out[col])
+    ]
+    if non_numeric:
+        raise ValueError(f"Derived data value columns must be numeric: {non_numeric}")
+
+    out = out[DERIVED_KEY_COLUMNS + value_cols].copy()
+    return out.sort_values(DERIVED_KEY_COLUMNS).reset_index(drop=True)
+
+
+def compute_derived(
+    derived_type: str,
+    daily: pd.DataFrame | None = None,
+    minute: pd.DataFrame | None = None,
+    **params,
+) -> pd.DataFrame:
+    """Compute one registered derived-data plugin."""
+    if daily is None and minute is None:
+        raise ValueError("Derived data computation requires --daily-path or --minute-path")
+
+    derived = get_derived(derived_type, **params)
+    result = validate_derived_frame(derived.compute(daily=daily, minute=minute))
+    value_cols = [col for col in result.columns if col not in DERIVED_KEY_COLUMNS]
+    logger.info(
+        "Derived data '%s' (%r): %d symbols × %d dates, columns=%s",
+        derived_type,
+        derived,
+        result["symbol_id"].nunique(),
+        result["date"].nunique(),
+        value_cols,
+    )
+    return result
+
+
+def read_derived_frame(path: str | Path) -> pd.DataFrame:
+    """Read and validate one derived CSV/parquet file or parquet dataset."""
+    path = Path(path)
+    if path.suffix.lower() == ".csv":
+        return validate_derived_frame(_read_csv_with_duplicate_header_check(path))
+    return validate_derived_frame(pd.read_parquet(path))
+
+
+def read_derived_frames(derived_paths: Iterable[str | Path]) -> list[pd.DataFrame]:
+    """Read and validate derived-data files."""
+    return [read_derived_frame(path) for path in derived_paths]
+
+
+def write_derived_frame(
+    derived: pd.DataFrame,
+    derived_name: str,
+    output_dir: str | Path = "derived",
+) -> Path:
+    """Validate and write derived data to ``{output_dir}/{derived_name}.pq``."""
+    result = validate_derived_frame(derived)
+    output_dir = Path(output_dir)
+    output_dir.mkdir(parents=True, exist_ok=True)
+    out_path = output_dir / f"{derived_name}.pq"
+    result.to_parquet(out_path, index=False)
+    return out_path
+
+
+def _read_csv_with_duplicate_header_check(path: Path) -> pd.DataFrame:
+    with path.open(newline="") as fh:
+        reader = csv.reader(fh)
+        try:
+            header = next(reader)
+        except StopIteration as exc:
+            raise ValueError("CSV input is empty") from exc
+    duplicated = sorted({col for col in header if header.count(col) > 1})
+    if duplicated:
+        raise ValueError(f"Derived data has duplicate columns: {duplicated}")
+    return pd.read_csv(path)

pipeline/derived/library/__init__.py

@@ -0,0 +1,4 @@
+"""Built-in derived-data library."""
+
+from pipeline.derived.library import minute_daily_summary  # noqa: F401
+

pipeline/derived/library/minute_daily_summary.py

@@ -0,0 +1,88 @@
+"""Daily summary data derived from raw minute bars."""
+
+import numpy as np
+import pandas as pd
+
+from pipeline.derived.base import BaseDerivedData
+from pipeline.derived.registry import register_derived
+
+
+@register_derived
+class MinuteDailySummaryDerived(BaseDerivedData):
+    """Aggregate intraday bars into daily summary columns."""
+
+    name = "minute_daily_summary"
+
+    def compute(
+        self,
+        daily: pd.DataFrame | None = None,
+        minute: pd.DataFrame | None = None,
+    ) -> pd.DataFrame:
+        if minute is None:
+            raise ValueError("minute_daily_summary requires minute input")
+
+        minute = minute.copy()
+        minute["date"] = pd.to_datetime(minute["date"]).dt.normalize()
+        sort_cols = ["symbol_id", "date"]
+        if "datetime" in minute.columns:
+            minute["datetime"] = pd.to_datetime(minute["datetime"])
+            sort_cols.append("datetime")
+        elif "time" in minute.columns:
+            sort_cols.append("time")
+        minute = minute.sort_values(sort_cols)
+
+        grouped = minute.groupby(["symbol_id", "date"], sort=True)
+        summary = grouped.agg(
+            minute_bar_count=("close", "count"),
+            first_open=("open", "first"),
+            last_close=("close", "last"),
+            high=("high", "max"),
+            low=("low", "min"),
+            volume_sum=("volume", "sum"),
+            amount_sum=("amount", "sum"),
+        )
+        summary["minute_intraday_return"] = (
+            summary["last_close"] / summary["first_open"] - 1.0
+        )
+        summary["minute_intraday_range"] = summary["high"] / summary["low"] - 1.0
+        summary["minute_vwap"] = (
+            summary["amount_sum"] / summary["volume_sum"].where(summary["volume_sum"] > 0)
+        )
+        summary = summary.reset_index()
+
+        if daily is not None:
+            daily_keys = daily[["symbol_id", "date"]].copy()
+            daily_keys["date"] = pd.to_datetime(daily_keys["date"]).dt.normalize()
+            daily_keys = daily_keys.drop_duplicates(["symbol_id", "date"])
+            result = daily_keys.merge(summary, on=["symbol_id", "date"], how="left")
+            if "close" in daily.columns:
+                daily_close = daily[["symbol_id", "date", "close"]].copy()
+                daily_close["date"] = pd.to_datetime(daily_close["date"]).dt.normalize()
+                daily_close = daily_close.drop_duplicates(["symbol_id", "date"])
+                result = result.merge(
+                    daily_close.rename(columns={"close": "daily_close"}),
+                    on=["symbol_id", "date"],
+                    how="left",
+                )
+                reference_close = result["daily_close"].fillna(result["last_close"])
+            else:
+                reference_close = result["last_close"]
+        else:
+            result = summary
+            reference_close = result["last_close"]
+
+        result["minute_vwap_deviation"] = (
+            result["minute_vwap"] / reference_close.replace(0.0, np.nan) - 1.0
+        )
+        return result[
+            [
+                "symbol_id",
+                "date",
+                "minute_bar_count",
+                "minute_intraday_return",
+                "minute_intraday_range",
+                "minute_vwap",
+                "minute_vwap_deviation",
+            ]
+        ]
+

pipeline/derived/registry.py

@@ -0,0 +1,80 @@
+"""Registry and factory for daily derived-data plugins."""
+
+import importlib
+import importlib.util
+import inspect
+from pathlib import Path
+from typing import Optional, Type
+
+from pipeline.derived.base import BaseDerivedData
+
+_REGISTRY: dict[str, Type[BaseDerivedData]] = {}
+_builtins_loaded = False
+
+
+def register_derived(cls: Type[BaseDerivedData]) -> Type[BaseDerivedData]:
+    """Class decorator that registers derived data under ``BaseDerivedData.name``."""
+    if not (isinstance(cls, type) and issubclass(cls, BaseDerivedData)):
+        raise TypeError(f"{cls!r} is not a BaseDerivedData subclass")
+    key = getattr(cls, "name", "")
+    if not key:
+        raise ValueError(f"{cls.__name__} must set a non-empty class attribute `name`")
+    existing = _REGISTRY.get(key)
+    if existing is not None and existing is not cls:
+        raise ValueError(
+            f"Derived data name '{key}' already registered by {existing.__name__}"
+        )
+    _REGISTRY[key] = cls
+    return cls
+
+
+def available_derived() -> list[str]:
+    """Sorted names of all registered derived-data plugins."""
+    _ensure_builtins()
+    return sorted(_REGISTRY)
+
+
+def get_derived(name: str, **params) -> BaseDerivedData:
+    """Instantiate a registered derived-data plugin by name.
+
+    Only parameters accepted by the plugin class's ``__init__`` are forwarded.
+    """
+    _ensure_builtins()
+    if name not in _REGISTRY:
+        raise KeyError(f"Unknown derived data '{name}'. Available: {sorted(_REGISTRY)}")
+    cls = _REGISTRY[name]
+    accepted = _accepted_params(cls)
+    kwargs = params if accepted is None else {k: v for k, v in params.items() if k in accepted}
+    return cls(**kwargs)
+
+
+def load_derived_module(spec: str) -> None:
+    """Import an external module so its ``@register_derived`` classes register."""
+    looks_like_file = spec.endswith(".py") or Path(spec).expanduser().exists()
+    if looks_like_file:
+        path = Path(spec).expanduser().resolve()
+        if not path.exists():
+            raise FileNotFoundError(f"Derived data module not found: {path}")
+        module_spec = importlib.util.spec_from_file_location(path.stem, path)
+        if module_spec is None or module_spec.loader is None:
+            raise ImportError(f"Cannot load derived data module from {path}")
+        module = importlib.util.module_from_spec(module_spec)
+        module_spec.loader.exec_module(module)
+    else:
+        importlib.import_module(spec)
+
+
+def _accepted_params(cls: Type[BaseDerivedData]) -> Optional[set[str]]:
+    """Param names ``cls.__init__`` accepts, or None if it takes ``**kwargs``."""
+    sig = inspect.signature(cls.__init__)
+    if any(p.kind is p.VAR_KEYWORD for p in sig.parameters.values()):
+        return None
+    return {name for name in sig.parameters if name != "self"}
+
+
+def _ensure_builtins() -> None:
+    global _builtins_loaded
+    if not _builtins_loaded:
+        import pipeline.derived.library  # noqa: F401
+        _builtins_loaded = True
+

pipeline/features/base.py

@@ -1,34 +1,8 @@
-"""Base class for daily feature plugins."""
+"""Compatibility alias for daily feature plugins.
 
-from abc import ABC, abstractmethod
+The canonical plugin API is ``pipeline.derived``. ``BaseFeature`` remains as an
-
+alias so existing external feature modules continue to register unchanged.
-import pandas as pd
-
-
-class BaseFeature(ABC):
-    """Aggregate raw minute bars into daily, symbol-keyed feature columns."""
-
-    #: Unique registry key. Every concrete feature must set this to a non-empty str.
-    name: str = ""
-
-    @abstractmethod
-    def compute(
-        self,
-        minute: pd.DataFrame,
-        daily: pd.DataFrame | None = None,
-    ) -> pd.DataFrame:
-        """Compute daily features.
-
-        Args:
-            minute: Raw minute bars with ``symbol_id`` and ``date`` keys.
-            daily: Optional daily data frame for calendar alignment or
-                reference daily columns.
-
-        Returns:
-            DataFrame with ``symbol_id``, ``date``, and one or more numeric
-            feature columns.
 """
 
-    def __repr__(self) -> str:
+from pipeline.derived.base import BaseDerivedData as BaseFeature
-        params = ", ".join(f"{k}={v!r}" for k, v in vars(self).items())
+
-        return f"{type(self).__name__}({params})"

pipeline/features/compute.py

@@ -1,49 +1,23 @@
-"""Feature computation and validation."""
+"""Compatibility wrappers for daily feature computation and validation."""
 
-import logging
 from pathlib import Path
 from typing import Iterable
 
 import pandas as pd
-from pandas.api.types import is_numeric_dtype
 
-from pipeline.features.registry import get_feature
+from pipeline.derived.compute import (
+    DERIVED_KEY_COLUMNS,
+    compute_derived,
+    read_derived_frames,
+    validate_derived_frame,
+)
 
-logger = logging.getLogger(__name__)
+FEATURE_KEY_COLUMNS = DERIVED_KEY_COLUMNS
-
-FEATURE_KEY_COLUMNS = ["symbol_id", "date"]
 
 
 def validate_feature_frame(features: pd.DataFrame) -> pd.DataFrame:
-    """Validate and normalize a daily feature frame.
+    """Validate and normalize a legacy daily feature frame."""
-
+    return validate_derived_frame(features)
-    A valid feature frame is keyed by unique ``symbol_id,date`` rows and has at
-    least one numeric feature column beyond those keys.
-    """
-    duplicated = features.columns[features.columns.duplicated()].tolist()
-    if duplicated:
-        raise ValueError(f"Feature output has duplicate columns: {duplicated}")
-
-    missing = [col for col in FEATURE_KEY_COLUMNS if col not in features.columns]
-    if missing:
-        raise ValueError(f"Feature output missing required columns: {missing}")
-
-    out = features.copy()
-    out["date"] = pd.to_datetime(out["date"])
-
-    if out.duplicated(FEATURE_KEY_COLUMNS).any():
-        raise ValueError("Feature output has duplicate symbol_id,date rows")
-
-    feature_cols = [col for col in out.columns if col not in FEATURE_KEY_COLUMNS]
-    if not feature_cols:
-        raise ValueError("Feature output must include at least one feature column")
-
-    non_numeric = [col for col in feature_cols if not is_numeric_dtype(out[col])]
-    if non_numeric:
-        raise ValueError(f"Feature columns must be numeric: {non_numeric}")
-
-    out = out[FEATURE_KEY_COLUMNS + feature_cols].copy()
-    return out.sort_values(FEATURE_KEY_COLUMNS).reset_index(drop=True)
 
 
 def compute_feature(
@@ -52,24 +26,16 @@ def compute_feature(
     daily: pd.DataFrame | None = None,
     **params,
 ) -> pd.DataFrame:
-    """Compute one registered feature from raw minute bars."""
+    """Compute one registered feature through the derived-data registry."""
-    feature = get_feature(feature_type, **params)
+    return compute_derived(
-    result = validate_feature_frame(feature.compute(minute=minute, daily=daily))
+        derived_type=feature_type,
-    feature_cols = [col for col in result.columns if col not in FEATURE_KEY_COLUMNS]
+        daily=daily,
-    logger.info(
+        minute=minute,
-        "Feature '%s' (%r): %d symbols × %d dates, columns=%s",
+        **params,
-        feature_type,
-        feature,
-        result["symbol_id"].nunique(),
-        result["date"].nunique(),
-        feature_cols,
     )
-    return result
 
 
 def read_feature_frames(feature_paths: Iterable[str | Path]) -> list[pd.DataFrame]:
-    """Read and validate feature parquet files."""
+    """Read and validate feature/derived-data parquet files."""
-    return [
+    return read_derived_frames(feature_paths)
-        validate_feature_frame(pd.read_parquet(path))
+
-        for path in feature_paths
-    ]

pipeline/features/library/minute_daily_summary.py

@@ -1,84 +1,16 @@
-"""Daily summary features derived from raw minute bars."""
+"""Compatibility wrapper for the built-in minute daily summary plugin."""
 
-import numpy as np
 import pandas as pd
 
-from pipeline.features.base import BaseFeature
+from pipeline.derived.library.minute_daily_summary import MinuteDailySummaryDerived
-from pipeline.features.registry import register_feature
 
 
-@register_feature
+class MinuteDailySummaryFeature(MinuteDailySummaryDerived):
-class MinuteDailySummaryFeature(BaseFeature):
+    """Legacy minute-first wrapper around the derived-data implementation."""
-    """Aggregate intraday bars into daily summary columns."""
-
-    name = "minute_daily_summary"
 
     def compute(
         self,
         minute: pd.DataFrame,
         daily: pd.DataFrame | None = None,
     ) -> pd.DataFrame:
-        minute = minute.copy()
+        return super().compute(daily=daily, minute=minute)
-        minute["date"] = pd.to_datetime(minute["date"])
-        sort_cols = ["symbol_id", "date"]
-        if "datetime" in minute.columns:
-            minute["datetime"] = pd.to_datetime(minute["datetime"])
-            sort_cols.append("datetime")
-        elif "time" in minute.columns:
-            sort_cols.append("time")
-        minute = minute.sort_values(sort_cols)
-
-        grouped = minute.groupby(["symbol_id", "date"], sort=True)
-        summary = grouped.agg(
-            minute_bar_count=("close", "count"),
-            first_open=("open", "first"),
-            last_close=("close", "last"),
-            high=("high", "max"),
-            low=("low", "min"),
-            volume_sum=("volume", "sum"),
-            amount_sum=("amount", "sum"),
-        )
-        summary["minute_intraday_return"] = (
-            summary["last_close"] / summary["first_open"] - 1.0
-        )
-        summary["minute_intraday_range"] = summary["high"] / summary["low"] - 1.0
-        summary["minute_vwap"] = (
-            summary["amount_sum"] / summary["volume_sum"].where(summary["volume_sum"] > 0)
-        )
-        summary = summary.reset_index()
-
-        if daily is not None:
-            daily_keys = daily[["symbol_id", "date"]].copy()
-            daily_keys["date"] = pd.to_datetime(daily_keys["date"])
-            daily_keys = daily_keys.drop_duplicates(["symbol_id", "date"])
-            result = daily_keys.merge(summary, on=["symbol_id", "date"], how="left")
-            if "close" in daily.columns:
-                daily_close = daily[["symbol_id", "date", "close"]].copy()
-                daily_close["date"] = pd.to_datetime(daily_close["date"])
-                daily_close = daily_close.drop_duplicates(["symbol_id", "date"])
-                result = result.merge(
-                    daily_close.rename(columns={"close": "daily_close"}),
-                    on=["symbol_id", "date"],
-                    how="left",
-                )
-                reference_close = result["daily_close"].fillna(result["last_close"])
-            else:
-                reference_close = result["last_close"]
-        else:
-            result = summary
-            reference_close = result["last_close"]
-
-        result["minute_vwap_deviation"] = (
-            result["minute_vwap"] / reference_close.replace(0.0, np.nan) - 1.0
-        )
-        return result[
-            [
-                "symbol_id",
-                "date",
-                "minute_bar_count",
-                "minute_intraday_return",
-                "minute_intraday_range",
-                "minute_vwap",
-                "minute_vwap_deviation",
-            ]
-        ]

pipeline/features/registry.py

@@ -1,79 +1,36 @@
-"""Registry and factory for daily feature plugins."""
+"""Compatibility registry wrappers for daily feature plugins."""
 
-import importlib
+from typing import Type
-import importlib.util
-import inspect
-from pathlib import Path
-from typing import Optional, Type
 
+from pipeline.derived.base import BaseDerivedData
+from pipeline.derived.registry import (
+    available_derived,
+    get_derived,
+    load_derived_module,
+    register_derived,
+)
 from pipeline.features.base import BaseFeature
 
-_REGISTRY: dict[str, Type[BaseFeature]] = {}
-_builtins_loaded = False
-
 
 def register_feature(cls: Type[BaseFeature]) -> Type[BaseFeature]:
-    """Class decorator that registers a feature under ``BaseFeature.name``."""
+    """Register a legacy feature plugin in the derived-data registry."""
-    if not (isinstance(cls, type) and issubclass(cls, BaseFeature)):
+    return register_derived(cls)
-        raise TypeError(f"{cls!r} is not a BaseFeature subclass")
-    key = getattr(cls, "name", "")
-    if not key:
-        raise ValueError(f"{cls.__name__} must set a non-empty class attribute `name`")
-    existing = _REGISTRY.get(key)
-    if existing is not None and existing is not cls:
-        raise ValueError(
-            f"Feature name '{key}' already registered by {existing.__name__}"
-        )
-    _REGISTRY[key] = cls
-    return cls
 
 
 def available_features() -> list[str]:
-    """Sorted names of all registered features (built-ins are loaded lazily)."""
+    """Sorted names of all registered feature/derived-data plugins."""
-    _ensure_builtins()
+    return available_derived()
-    return sorted(_REGISTRY)
 
 
-def get_feature(name: str, **params) -> BaseFeature:
+def get_feature(name: str, **params) -> BaseDerivedData:
-    """Instantiate a registered feature by name.
+    """Instantiate a registered feature/derived-data plugin by name."""
+    if name == "minute_daily_summary":
+        from pipeline.features.library.minute_daily_summary import MinuteDailySummaryFeature
 
-    Only parameters accepted by the feature class's ``__init__`` are forwarded.
+        return MinuteDailySummaryFeature(**params)
-    """
+    return get_derived(name, **params)
-    _ensure_builtins()
-    if name not in _REGISTRY:
-        raise KeyError(f"Unknown feature '{name}'. Available: {sorted(_REGISTRY)}")
-    cls = _REGISTRY[name]
-    accepted = _accepted_params(cls)
-    kwargs = params if accepted is None else {k: v for k, v in params.items() if k in accepted}
-    return cls(**kwargs)
 
 
 def load_feature_module(spec: str) -> None:
     """Import an external module so its ``@register_feature`` classes register."""
-    looks_like_file = spec.endswith(".py") or Path(spec).expanduser().exists()
+    load_derived_module(spec)
-    if looks_like_file:
-        path = Path(spec).expanduser().resolve()
-        if not path.exists():
-            raise FileNotFoundError(f"Feature module not found: {path}")
-        module_spec = importlib.util.spec_from_file_location(path.stem, path)
-        if module_spec is None or module_spec.loader is None:
-            raise ImportError(f"Cannot load feature module from {path}")
-        module = importlib.util.module_from_spec(module_spec)
-        module_spec.loader.exec_module(module)
-    else:
-        importlib.import_module(spec)
-
-
-def _accepted_params(cls: Type[BaseFeature]) -> Optional[set[str]]:
-    """Param names ``cls.__init__`` accepts, or None if it takes ``**kwargs``."""
-    sig = inspect.signature(cls.__init__)
-    if any(p.kind is p.VAR_KEYWORD for p in sig.parameters.values()):
-        return None
-    return {name for name in sig.parameters if name != "self"}
-
-
-def _ensure_builtins() -> None:
-    global _builtins_loaded
-    if not _builtins_loaded:
-        import pipeline.features.library  # noqa: F401
-        _builtins_loaded = True

tests/test_derived.py

@@ -0,0 +1,261 @@
+"""Tests for daily derived-data ingestion and plugins."""
+
+import textwrap
+
+import numpy as np
+import pandas as pd
+import pytest
+from click.testing import CliRunner
+
+from cli import cli
+from pipeline.alpha.compute import join_feature_frames
+from pipeline.derived.compute import compute_derived, validate_derived_frame
+from pipeline.derived.registry import available_derived, get_derived, load_derived_module
+
+
+def _daily_bars() -> pd.DataFrame:
+    return pd.DataFrame({
+        "symbol_id": ["sh600000", "sz000001", "sh600000"],
+        "date": pd.to_datetime(["2024-01-02", "2024-01-02", "2024-01-03"]),
+        "open": [10.0, 20.0, 11.0],
+        "close": [10.5, 20.5, 11.5],
+        "volume": [1000.0, 2000.0, 1200.0],
+    })
+
+
+def _minute_bars() -> pd.DataFrame:
+    return pd.DataFrame({
+        "symbol_id": ["sh600000", "sh600000", "sz000001"],
+        "datetime": pd.to_datetime([
+            "2024-01-02 09:35:00",
+            "2024-01-02 09:40:00",
+            "2024-01-02 09:35:00",
+        ]),
+        "date": pd.to_datetime(["2024-01-02", "2024-01-02", "2024-01-02"]),
+        "time": ["09:35:00", "09:40:00", "09:35:00"],
+        "open": [10.0, 10.5, 20.0],
+        "high": [11.0, 12.0, 21.0],
+        "low": [9.0, 10.0, 19.0],
+        "close": [10.5, 11.0, 20.5],
+        "volume": [100.0, 300.0, 200.0],
+        "amount": [1000.0, 3300.0, 4100.0],
+    })
+
+
+def test_validate_derived_frame_normalizes_and_sorts():
+    result = validate_derived_frame(pd.DataFrame({
+        "symbol_id": ["sz000001", "sh600000"],
+        "date": ["2024-01-02 15:00:00", "2024-01-02 09:30:00"],
+        "custom_value": [2.0, 1.0],
+    }))
+
+    assert result["symbol_id"].tolist() == ["sh600000", "sz000001"]
+    assert result["date"].tolist() == [
+        pd.Timestamp("2024-01-02"),
+        pd.Timestamp("2024-01-02"),
+    ]
+
+
+def test_validate_derived_frame_rejects_missing_keys():
+    with pytest.raises(ValueError, match="missing required"):
+        validate_derived_frame(pd.DataFrame({"symbol_id": ["sh600000"], "x": [1.0]}))
+
+
+def test_validate_derived_frame_rejects_duplicate_normalized_keys():
+    with pytest.raises(ValueError, match="duplicate symbol_id,date"):
+        validate_derived_frame(pd.DataFrame({
+            "symbol_id": ["sh600000", "sh600000"],
+            "date": ["2024-01-02 09:30:00", "2024-01-02 15:00:00"],
+            "x": [1.0, 2.0],
+        }))
+
+
+def test_validate_derived_frame_rejects_duplicate_columns():
+    bad = pd.DataFrame(
+        [["sh600000", pd.Timestamp("2024-01-02"), 1.0, 2.0]],
+        columns=["symbol_id", "date", "dup", "dup"],
+    )
+    with pytest.raises(ValueError, match="duplicate columns"):
+        validate_derived_frame(bad)
+
+
+def test_validate_derived_frame_rejects_non_numeric_values():
+    with pytest.raises(ValueError, match="numeric"):
+        validate_derived_frame(pd.DataFrame({
+            "symbol_id": ["sh600000"],
+            "date": [pd.Timestamp("2024-01-02")],
+            "bad": ["not numeric"],
+        }))
+
+
+def test_derived_ingest_cli_accepts_csv_and_parquet(tmp_path):
+    runner = CliRunner()
+    source = pd.DataFrame({
+        "symbol_id": ["sz000001", "sh600000"],
+        "date": ["2024-01-02", "2024-01-02"],
+        "custom_value": [2.0, 1.0],
+    })
+    csv_path = tmp_path / "custom.csv"
+    parquet_path = tmp_path / "custom.pq"
+    out_dir = tmp_path / "derived"
+    source.to_csv(csv_path, index=False)
+    source.to_parquet(parquet_path, index=False)
+
+    csv_result = runner.invoke(cli, [
+        "derived", "ingest",
+        "--input-path", str(csv_path),
+        "--derived-name", "csv_custom",
+        "--output-dir", str(out_dir),
+    ])
+    assert csv_result.exit_code == 0, csv_result.output
+
+    parquet_result = runner.invoke(cli, [
+        "derived", "ingest",
+        "--input-path", str(parquet_path),
+        "--derived-name", "parquet_custom",
+        "--output-dir", str(out_dir),
+    ])
+    assert parquet_result.exit_code == 0, parquet_result.output
+
+    written = pd.read_parquet(out_dir / "csv_custom.pq")
+    assert written["symbol_id"].tolist() == ["sh600000", "sz000001"]
+    assert (out_dir / "parquet_custom.pq").exists()
+
+
+def test_derived_validate_cli_rejects_duplicate_csv_columns(tmp_path):
+    runner = CliRunner()
+    csv_path = tmp_path / "bad.csv"
+    csv_path.write_text("symbol_id,date,x,x\nsh600000,2024-01-02,1.0,2.0\n")
+
+    result = runner.invoke(cli, [
+        "derived", "validate",
+        "--input-path", str(csv_path),
+    ])
+
+    assert result.exit_code != 0
+    assert "duplicate columns" in result.output
+
+
+def test_external_derived_plugin_loads_filters_params_and_uses_inputs(tmp_path):
+    module_path = tmp_path / "external_derived.py"
+    module_path.write_text(textwrap.dedent('''
+        import pandas as pd
+        from pipeline.derived.base import BaseDerivedData
+        from pipeline.derived.registry import register_derived
+
+        @register_derived
+        class FlexibleDerived(BaseDerivedData):
+            name = "flexible_derived_test"
+
+            def __init__(self, scale: float = 1.0):
+                self.scale = scale
+
+            def compute(self, daily=None, minute=None) -> pd.DataFrame:
+                result = None
+                if daily is not None:
+                    result = daily[["symbol_id", "date", "close"]].copy()
+                    result["daily_scaled_close"] = result.pop("close") * self.scale
+                if minute is not None:
+                    minute_out = (
+                        minute.groupby(["symbol_id", "date"], as_index=False)["volume"]
+                        .sum()
+                        .rename(columns={"volume": "minute_volume_sum"})
+                    )
+                    minute_out["minute_volume_sum"] *= self.scale
+                    result = minute_out if result is None else result.merge(
+                        minute_out, on=["symbol_id", "date"], how="left"
+                    )
+                return result
+    '''))
+
+    load_derived_module(str(module_path))
+    assert "flexible_derived_test" in available_derived()
+
+    instance = get_derived("flexible_derived_test", scale=2.0, ignored=99)
+    assert instance.scale == 2.0
+    assert not hasattr(instance, "ignored")
+
+    daily_result = compute_derived(
+        "flexible_derived_test",
+        daily=_daily_bars(),
+        scale=2.0,
+        ignored=99,
+    )
+    assert "daily_scaled_close" in daily_result.columns
+    assert np.isclose(daily_result["daily_scaled_close"].iloc[0], 21.0)
+
+    minute_result = compute_derived(
+        "flexible_derived_test",
+        minute=_minute_bars(),
+        scale=2.0,
+    )
+    assert "minute_volume_sum" in minute_result.columns
+    assert np.isclose(
+        minute_result.loc[minute_result["symbol_id"] == "sh600000", "minute_volume_sum"].iloc[0],
+        800.0,
+    )
+
+    both_result = compute_derived(
+        "flexible_derived_test",
+        daily=_daily_bars(),
+        minute=_minute_bars(),
+        scale=1.0,
+    )
+    assert {"daily_scaled_close", "minute_volume_sum"}.issubset(both_result.columns)
+
+
+def test_derived_compute_cli_writes_builtin_minute_summary(tmp_path):
+    runner = CliRunner()
+    minute_path = tmp_path / "minute.pq"
+    out_dir = tmp_path / "derived"
+    _minute_bars().to_parquet(minute_path, index=False)
+
+    result = runner.invoke(cli, [
+        "derived", "compute",
+        "--minute-path", str(minute_path),
+        "--derived-type", "minute_daily_summary",
+        "--derived-name", "minute_summary",
+        "--output-dir", str(out_dir),
+    ])
+
+    assert result.exit_code == 0, result.output
+    written = pd.read_parquet(out_dir / "minute_summary.pq")
+    assert "minute_vwap" in written.columns
+
+
+def test_alpha_feature_join_rejects_derived_column_collisions():
+    data = _daily_bars()
+    derived_a = data[["symbol_id", "date"]].copy()
+    derived_a["custom_value"] = 1.0
+    derived_b = data[["symbol_id", "date"]].copy()
+    derived_b["custom_value"] = 2.0
+
+    with pytest.raises(ValueError, match="conflict"):
+        join_feature_frames(data, [derived_a, derived_b])
+
+    close_collision = data[["symbol_id", "date"]].copy()
+    close_collision["close"] = 1.0
+    with pytest.raises(ValueError, match="conflict"):
+        join_feature_frames(data, [close_collision])
+
+
+def test_legacy_feature_cli_delegates_to_derived_registry(tmp_path):
+    runner = CliRunner()
+    minute_path = tmp_path / "minute.pq"
+    out_dir = tmp_path / "features"
+    _minute_bars().to_parquet(minute_path, index=False)
+
+    list_result = runner.invoke(cli, ["feature", "list"])
+    assert list_result.exit_code == 0, list_result.output
+    assert "minute_daily_summary" in list_result.output
+
+    compute_result = runner.invoke(cli, [
+        "feature", "compute",
+        "--minute-path", str(minute_path),
+        "--feature-type", "minute_daily_summary",
+        "--feature-name", "minute_summary",
+        "--output-dir", str(out_dir),
+    ])
+    assert compute_result.exit_code == 0, compute_result.output
+    assert (out_dir / "minute_summary.pq").exists()
+

tests/test_features.py

@@ -7,6 +7,7 @@ import pandas as pd
 import pytest
 
 from pipeline.features.compute import compute_feature, validate_feature_frame
+from pipeline.features.library.minute_daily_summary import MinuteDailySummaryFeature
 from pipeline.features.registry import (
     available_features,
     get_feature,
@@ -68,6 +69,14 @@ def test_built_in_minute_daily_summary():
     assert pd.isna(missing["minute_vwap"])
 
 
+def test_minute_daily_summary_feature_preserves_legacy_positional_compute():
+    direct = MinuteDailySummaryFeature().compute(_minute_bars())
+    via_registry = get_feature("minute_daily_summary").compute(_minute_bars())
+
+    assert "minute_vwap" in direct.columns
+    pd.testing.assert_frame_equal(direct, via_registry)
+
+
 def test_load_external_feature_module_and_filter_params(tmp_path):
     module_path = tmp_path / "external_feature.py"
     module_path.write_text(textwrap.dedent('''