From 07868179138a12931ddd86f765f951c641145af0 Mon Sep 17 00:00:00 2001 From: Usman Shahid Date: Wed, 12 Aug 2026 14:03:34 +0400 Subject: [PATCH 1/5] feat(trail-snapshot-store): Postgres-backed ViewStore Tracked views land in the snapshot store rather than on local disk, so a view sits alongside the facts it was computed from. Frames are parquet bytes, not shredded columns: trail reads and writes whole frames, so a column-per-export schema would need a migration every time a model's exports change - which has happened twice already. write() upserts. Appending would silently double every tracked frame on the second build, and a doubled row count still looks plausible. Registered under trail.providers (the writeable view-store group), NOT trail.sources. Verified resolvable through trail's own resolver. --- .gitignore | 3 +- trail-snapshot-store/pyproject.toml | 23 ++ trail-snapshot-store/tests/test_store.py | 75 +++++ .../trail_snapshot_store/__init__.py | 3 + .../trail_snapshot_store/store.py | 104 ++++++ trail-snapshot-store/uv.lock | 295 ++++++++++++++++++ 6 files changed, 502 insertions(+), 1 deletion(-) create mode 100644 trail-snapshot-store/pyproject.toml create mode 100644 trail-snapshot-store/tests/test_store.py create mode 100644 trail-snapshot-store/trail_snapshot_store/__init__.py create mode 100644 trail-snapshot-store/trail_snapshot_store/store.py create mode 100644 trail-snapshot-store/uv.lock diff --git a/.gitignore b/.gitignore index 0ddd61c..0226542 100644 --- a/.gitignore +++ b/.gitignore @@ -216,4 +216,5 @@ __marimo__/ # Trail MCP deployment artifacts (k3s manifests + trail Dockerfile) belong with the # trail project, not this repo. Kept on disk locally for the live deployment, ignored here. -/deploy/ \ No newline at end of file +/deploy/trail-snapshot-store/.venv/ +trail-snapshot-source/.venv/ diff --git a/trail-snapshot-store/pyproject.toml b/trail-snapshot-store/pyproject.toml new file mode 100644 index 0000000..12d0cc7 --- /dev/null +++ b/trail-snapshot-store/pyproject.toml @@ -0,0 +1,23 @@ +[project] +name = "trail-snapshot-store" +version = "0.1.0" +description = "Postgres-backed trail ViewStore: tracked views persisted into the snapshot store" +requires-python = ">=3.11" +dependencies = ["trail-lang>=0.18.0", "polars>=1.0", "psycopg[binary]>=3.1"] + +# trail.providers is the WRITEABLE VIEW-STORE group (trail/providers.py:17). +# Sources use trail.sources. Declaring a store under the wrong group resolves to +# nothing and trail silently falls back to a local-disk store - a deployment +# that looks healthy while writing views somewhere else entirely. +[project.entry-points."trail.providers"] +views_pg = "trail_snapshot_store:PgViewStore" + +[dependency-groups] +dev = ["pytest>=8.0"] + +[build-system] +requires = ["hatchling"] +build-backend = "hatchling.build" + +[tool.hatch.build.targets.wheel] +packages = ["trail_snapshot_store"] diff --git a/trail-snapshot-store/tests/test_store.py b/trail-snapshot-store/tests/test_store.py new file mode 100644 index 0000000..b461116 --- /dev/null +++ b/trail-snapshot-store/tests/test_store.py @@ -0,0 +1,75 @@ +"""The Postgres ViewStore: trail's 5-method ViewStore ABC, backed by the snapshot DB.""" +import os +import polars as pl +import pytest +from trail.store import Manifest +from trail_snapshot_store import PgViewStore + + +@pytest.fixture +def store(): + s = PgViewStore({"dsn": os.environ["SNAPSHOT_TEST_DSN"], "schema": "snapshot"}) + for n in s.list(): + s.delete(n) + return s + + +def _mf(name="rating", expr_hash="h1"): + return Manifest( + name=name, kind="model", exports=("score",), expr_hash=expr_hash, + sources=("fmp",), freshness={"fmp": "t1"}, + built_at="2026-01-01T00:00:00Z", columns=("views.rating.score",), + ) + + +def test_write_then_read_roundtrips(store): + df = pl.DataFrame({"entity": ["AAPL", "MSFT"], "time": ["2025-12-31"] * 2, + "views.rating.score": [0.8, 0.6]}) + store.write("rating", df, _mf()) + got = store.read("rating") + assert got.shape == df.shape + assert got["views.rating.score"].to_list() == [0.8, 0.6] + + +def test_manifest_roundtrips(store): + store.write("rating", pl.DataFrame({"entity": ["A"]}), _mf()) + mf = store.manifest("rating") + assert mf.expr_hash == "h1" and mf.sources == ("fmp",) + + +def test_rewrite_replaces_rather_than_appends(store): + """A rebuild REPLACES a view. Accumulating would silently double every + tracked frame on the second build - and the row count would still look + plausible.""" + store.write("rating", pl.DataFrame({"entity": ["A", "B"]}), _mf()) + store.write("rating", pl.DataFrame({"entity": ["C"]}), _mf(expr_hash="h2")) + assert store.read("rating").height == 1 + assert store.manifest("rating").expr_hash == "h2" + + +def test_missing_view_reads_none(store): + assert store.read("nope") is None + assert store.manifest("nope") is None + + +def test_delete_and_list(store): + store.write("rating", pl.DataFrame({"entity": ["A"]}), _mf()) + assert "rating" in store.list() + assert store.delete("rating") is True + assert store.delete("rating") is False + assert store.list() == [] + + +def test_schema_and_dtypes_survive_the_roundtrip(store): + """Parquet round-trip must not silently coerce types - a float score coming + back as a string would break every downstream comparison.""" + df = pl.DataFrame({ + "entity": ["AAPL"], "time": ["2025-12-31"], + "views.rating.score": [0.8], + "views.rating.grade": ["A"], + "views.rating.gate_ok": [True], + }) + store.write("rating", df, _mf()) + got = store.read("rating") + assert got.dtypes == df.dtypes + assert got.columns == df.columns diff --git a/trail-snapshot-store/trail_snapshot_store/__init__.py b/trail-snapshot-store/trail_snapshot_store/__init__.py new file mode 100644 index 0000000..d92d7a1 --- /dev/null +++ b/trail-snapshot-store/trail_snapshot_store/__init__.py @@ -0,0 +1,3 @@ +from .store import PgViewStore + +__all__ = ["PgViewStore"] diff --git a/trail-snapshot-store/trail_snapshot_store/store.py b/trail-snapshot-store/trail_snapshot_store/store.py new file mode 100644 index 0000000..725e94c --- /dev/null +++ b/trail-snapshot-store/trail_snapshot_store/store.py @@ -0,0 +1,104 @@ +"""A trail ViewStore backed by the snapshot database. + +trail keeps its view-persistence machinery; what changes is where the frames +land. Instead of parquet files on a local disk, tracked views become rows in the +snapshot store — so a view sits alongside the facts it was computed from rather +than in a parallel artifact beside them. + +Frames are stored as parquet bytes rather than shredded into columns. trail +reads and writes whole frames, so a column-per-export schema would buy nothing +and would need a migration every time a model's exports changed — and this +project has already had exports change twice. + +Registered as ``views_pg`` under the ``trail.providers`` entry-point group. Note +that trail resolves the store from ``config.providers["views"]`` — a hardcoded +key — so the trail.yaml stanza must be named ``views`` whatever the driver is. +""" +from __future__ import annotations + +import io +import json + +import polars as pl +import psycopg +from psycopg.rows import dict_row +from trail.store import Manifest, ViewStore + +_DDL = """ +CREATE TABLE IF NOT EXISTS {schema}.views ( + name text PRIMARY KEY, + frame bytea NOT NULL, + manifest jsonb NOT NULL, + written_at timestamptz NOT NULL DEFAULT now() +) +""" + + +class PgViewStore(ViewStore): + """Implements trail's five-method ViewStore ABC against Postgres.""" + + def __init__(self, options: dict | None = None) -> None: + options = options or {} + try: + self._dsn = options["dsn"] + except KeyError: + raise ValueError( + "views_pg requires a 'dsn' option, e.g. " + "postgresql://snapshot@snapshot-db.trail.svc.cluster.local:5432/snapshot" + ) from None + self._schema = options.get("schema", "snapshot") + with self._connect() as c: + c.execute(f"CREATE SCHEMA IF NOT EXISTS {self._schema}") + c.execute(_DDL.format(schema=self._schema)) + + def _connect(self): + return psycopg.connect(self._dsn, autocommit=True, row_factory=dict_row) + + def read(self, name: str) -> pl.DataFrame | None: + with self._connect() as c: + row = c.execute( + f"SELECT frame FROM {self._schema}.views WHERE name = %s", (name,) + ).fetchone() + return pl.read_parquet(io.BytesIO(row["frame"])) if row else None + + def manifest(self, name: str) -> Manifest | None: + with self._connect() as c: + row = c.execute( + f"SELECT manifest FROM {self._schema}.views WHERE name = %s", (name,) + ).fetchone() + return Manifest.from_dict(row["manifest"]) if row else None + + def write(self, name: str, frame: pl.DataFrame, manifest: Manifest) -> None: + buf = io.BytesIO() + frame.write_parquet(buf) + # UPSERT, not INSERT. A rebuild REPLACES a view; appending would silently + # double every tracked frame on the second build, and a doubled row count + # still looks plausible enough to go unnoticed. + with self._connect() as c: + c.execute( + f""" + INSERT INTO {self._schema}.views (name, frame, manifest) + VALUES (%s, %s, %s) + ON CONFLICT (name) DO UPDATE + SET frame = EXCLUDED.frame, + manifest = EXCLUDED.manifest, + written_at = now() + """, + (name, buf.getvalue(), json.dumps(manifest.to_dict())), + ) + + def delete(self, name: str) -> bool: + with self._connect() as c: + return ( + c.execute( + f"DELETE FROM {self._schema}.views WHERE name = %s", (name,) + ).rowcount + > 0 + ) + + def list(self) -> list[str]: + with self._connect() as c: + rows = c.execute( + f"SELECT name FROM {self._schema}.views ORDER BY name" + ).fetchall() + return [r["name"] for r in rows] diff --git a/trail-snapshot-store/uv.lock b/trail-snapshot-store/uv.lock new file mode 100644 index 0000000..849ada2 --- /dev/null +++ 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feat(trail-snapshot-source): facts as panel columns with a changefeed changed_since keys on published_at - the PIT clock - so a restatement, which arrives as a NEW row with a later published_at, re-dirties exactly the cells it should. Without that the view would never pick a correction up. Mirrors trail-fmp, which keys the same changefeed on filing date. trail already has the incremental engine; this feeds it rather than reimplementing it. Registered under trail.sources, NOT trail.providers - verified separated. --- trail-snapshot-source/pyproject.toml | 21 ++ trail-snapshot-source/tests/conftest.py | 26 ++ trail-snapshot-source/tests/test_source.py | 63 ++++ .../trail_snapshot_source/__init__.py | 3 + .../trail_snapshot_source/source.py | 91 ++++++ trail-snapshot-source/uv.lock | 295 ++++++++++++++++++ 6 files changed, 499 insertions(+) create mode 100644 trail-snapshot-source/pyproject.toml create mode 100644 trail-snapshot-source/tests/conftest.py create mode 100644 trail-snapshot-source/tests/test_source.py create mode 100644 trail-snapshot-source/trail_snapshot_source/__init__.py create mode 100644 trail-snapshot-source/trail_snapshot_source/source.py create mode 100644 trail-snapshot-source/uv.lock diff --git a/trail-snapshot-source/pyproject.toml b/trail-snapshot-source/pyproject.toml new file mode 100644 index 0000000..98c58c5 --- /dev/null +++ b/trail-snapshot-source/pyproject.toml @@ -0,0 +1,21 @@ +[project] +name = "trail-snapshot-source" +version = "0.1.0" +description = "Expose snapshot facts to trail as panel columns, with a published_at changefeed" +requires-python = ">=3.11" +dependencies = ["trail-lang>=0.18.0", "polars>=1.0", "psycopg[binary]>=3.1"] + +# trail.sources is the READ-side group - the one trail-fmp uses. View stores go +# under trail.providers instead; the two are not interchangeable. +[project.entry-points."trail.sources"] +snapshot = "trail_snapshot_source:SnapshotSource" + +[dependency-groups] +dev = ["pytest>=8.0"] + +[build-system] +requires = ["hatchling"] +build-backend = "hatchling.build" + +[tool.hatch.build.targets.wheel] +packages = ["trail_snapshot_source"] diff --git a/trail-snapshot-source/tests/conftest.py b/trail-snapshot-source/tests/conftest.py new file mode 100644 index 0000000..d4cc0b6 --- /dev/null +++ b/trail-snapshot-source/tests/conftest.py @@ -0,0 +1,26 @@ +import os +import pathlib +import psycopg +import pytest +from psycopg.rows import dict_row + +# Reuse the harness migrations: this source reads the same schema. +MIGRATIONS = pathlib.Path( + "/home/usmanshahid/Documents/claude/workspaces/harness/snapshot/migrations") + + +@pytest.fixture +def conn(): + c = psycopg.connect(os.environ["SNAPSHOT_TEST_DSN"], autocommit=True, + row_factory=dict_row) + c.execute("DROP SCHEMA IF EXISTS snapshot CASCADE") + c.execute("LOAD 'age'") + c.execute('SET search_path = ag_catalog, "$user", public') + if c.execute("SELECT 1 FROM ag_catalog.ag_graph WHERE name='snapshot_graph'").fetchone(): + c.execute("SELECT ag_catalog.drop_graph('snapshot_graph', true)") + for f in sorted(MIGRATIONS.glob("*.sql")): + c.execute(f.read_text()) + c.execute("INSERT INTO snapshot.sources (source_id, name) VALUES (1,'test') " + "ON CONFLICT DO NOTHING") + yield c + c.close() diff --git a/trail-snapshot-source/tests/test_source.py b/trail-snapshot-source/tests/test_source.py new file mode 100644 index 0000000..feb4a60 --- /dev/null +++ b/trail-snapshot-source/tests/test_source.py @@ -0,0 +1,63 @@ +"""Facts as trail panel columns, plus the changefeed that drives incremental recompute.""" +import os +import pytest +from trail_snapshot_source import SnapshotSource + + +@pytest.fixture +def src(conn): + return SnapshotSource({"dsn": os.environ["SNAPSHOT_TEST_DSN"]}) + + +def _fact(conn, subj, pred, val, valid_from, published_at): + conn.execute( + """INSERT INTO snapshot.facts + (subject, predicate, value, kind, valid_from, published_at, fidelity, source_id) + VALUES (%s, %s, %s, 'observation', %s, %s, 'vintage', 1)""", + (subj, pred, val, valid_from, published_at)) + + +def test_freshness_token_is_none_when_empty(conn, src): + assert src.freshness_token() is None + + +def test_freshness_token_moves_when_a_fact_arrives(conn, src): + before = src.freshness_token() + _fact(conn, "AAPL", "revenue", 1.0, "2025-12-31", "2026-02-01Z") + assert src.freshness_token() != before + + +def test_changed_since_returns_only_newer_cells(conn, src): + _fact(conn, "AAPL", "revenue", 1.0, "2024-12-31", "2025-02-01Z") + _fact(conn, "MSFT", "revenue", 2.0, "2025-12-31", "2026-02-01Z") + changed = src.changed_since("2025-06-01T00:00:00+00:00") + assert {e for e, _ in changed} == {"MSFT"} + + +def test_changed_since_none_cursor_returns_everything(conn, src): + _fact(conn, "AAPL", "revenue", 1.0, "2024-12-31", "2025-02-01Z") + assert len(src.changed_since(None)) == 1 + + +def test_restatement_dirties_the_cell_again(conn, src): + """A restatement arrives as a NEW row with a later published_at, so the same + (entity, period) cell must reappear in the changefeed - otherwise the view + would never pick the correction up.""" + _fact(conn, "AAPL", "revenue", 1.0, "2024-12-31", "2025-02-01Z") + _fact(conn, "AAPL", "revenue", 0.9, "2024-12-31", "2026-03-01Z") + changed = src.changed_since("2025-06-01T00:00:00+00:00") + assert ("AAPL", __import__("datetime").date(2024, 12, 31)) in changed + + +def test_load_pivots_predicates_into_columns(conn, src): + _fact(conn, "AAPL", "revenue", 100.0, "2025-12-31", "2026-02-01Z") + _fact(conn, "AAPL", "net_income", 20.0, "2025-12-31", "2026-02-01Z") + df = src.load() + assert set(df.columns) >= {"entity", "time", "revenue", "net_income"} + assert df.height == 1 + + +def test_load_takes_the_latest_published_value(conn, src): + _fact(conn, "AAPL", "revenue", 100.0, "2025-12-31", "2026-02-01Z") + _fact(conn, "AAPL", "revenue", 90.0, "2025-12-31", "2026-05-01Z") + assert src.load()["revenue"].to_list() == [90.0] diff --git a/trail-snapshot-source/trail_snapshot_source/__init__.py b/trail-snapshot-source/trail_snapshot_source/__init__.py new file mode 100644 index 0000000..3e69953 --- /dev/null +++ b/trail-snapshot-source/trail_snapshot_source/__init__.py @@ -0,0 +1,3 @@ +from .source import SnapshotSource + +__all__ = ["SnapshotSource"] diff --git a/trail-snapshot-source/trail_snapshot_source/source.py b/trail-snapshot-source/trail_snapshot_source/source.py new file mode 100644 index 0000000..6a06738 --- /dev/null +++ b/trail-snapshot-source/trail_snapshot_source/source.py @@ -0,0 +1,91 @@ +"""Expose snapshot facts to trail as panel columns, with a changefeed. + +This is the load-bearing half of the trail integration. trail already has the +incremental update engine the snapshot design needs — per ``trail/views.py``, +staleness is a declaration hash plus a panel-config fingerprint plus per-source +freshness, and a source exposing ``changed_since`` gets footprint-scoped +recompute instead of a whole-view rebuild. We are not building an update engine; +we are feeding one that works. + +``changed_since`` keys on ``published_at`` — the point-in-time clock — so a +restatement, which arrives as a NEW row with a later ``published_at``, dirties +exactly the cells it should. ``trail-fmp`` does the same thing keyed on filing +date (``trail_fmp/source.py:172``), noting that an amendment carries a newer +acceptedDate; this is the same idea for a different backend. +""" +from __future__ import annotations + +import datetime as dt + +import polars as pl +import psycopg +from psycopg.rows import dict_row + +# One row per (entity, period), latest publication winning. The DISTINCT ON +# ordering mirrors snapshot.facts.as_of: published_at DESC picks the newest +# vintage, and source_id breaks ties deterministically so two sources publishing +# at the same instant cannot make the panel non-reproducible. +_LOAD = """ +SELECT DISTINCT ON (subject, predicate, valid_from) + subject AS entity, valid_from AS time, predicate, value + FROM {schema}.facts + WHERE value IS NOT NULL + ORDER BY subject, predicate, valid_from, published_at DESC, source_id +""" + + +class SnapshotSource: + """A trail source over ``snapshot.facts``.""" + + name = "snapshot" + + def __init__(self, options: dict | None = None) -> None: + options = options or {} + try: + self._dsn = options["dsn"] + except KeyError: + raise ValueError("snapshot source requires a 'dsn' option") from None + self._schema = options.get("schema", "snapshot") + + def _connect(self): + return psycopg.connect(self._dsn, autocommit=True, row_factory=dict_row) + + def load(self, *args, **kwargs) -> pl.DataFrame: + """The panel: entity x time, one column per predicate.""" + with self._connect() as c: + rows = c.execute(_LOAD.format(schema=self._schema)).fetchall() + if not rows: + return pl.DataFrame({"entity": [], "time": []}) + return ( + pl.DataFrame(rows) + .pivot(values="value", index=["entity", "time"], on="predicate") + .sort(["entity", "time"]) + ) + + def freshness_token(self) -> str | None: + """Max published_at — cheap, and moves whenever anything new lands. + + None means "no freshness signal", which tells trail to serve the stored + view until the program changes. That is the correct answer for an empty + store: there is nothing to be stale about yet. + """ + with self._connect() as c: + row = c.execute( + f"SELECT max(published_at) AS m FROM {self._schema}.facts" + ).fetchone() + return row["m"].isoformat() if row and row["m"] else None + + def changed_since(self, cursor: str | None): + """The ``(entity, period-end)`` cells published after ``cursor``. + + ``cursor`` is a token previously returned by :meth:`freshness_token`. + None means "everything", which is what a first build wants. + """ + sql = f"SELECT DISTINCT subject, valid_from FROM {self._schema}.facts" + params: tuple = () + if cursor is not None: + sql += " WHERE published_at > %s" + params = (dt.datetime.fromisoformat(cursor),) + with self._connect() as c: + rows = c.execute(sql, params).fetchall() + return {(r["subject"], r["valid_from"]) for r in rows} diff --git a/trail-snapshot-source/uv.lock b/trail-snapshot-source/uv.lock new file mode 100644 index 0000000..53fa047 --- 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pkgs): accept the DSN from SNAPSHOT_DSN as well as options trail.yaml is a ConfigMap that lives in version control, so a password-bearing DSN cannot go in it. Options-first-then-environment is the precedence trail-fmp already uses for FMP_API_KEY; this follows it rather than inventing a scheme. --- .../trail_snapshot_source/source.py | 14 ++++++++++---- .../trail_snapshot_store/store.py | 16 ++++++++++------ 2 files changed, 20 insertions(+), 10 deletions(-) diff --git a/trail-snapshot-source/trail_snapshot_source/source.py b/trail-snapshot-source/trail_snapshot_source/source.py index 6a06738..039db34 100644 --- a/trail-snapshot-source/trail_snapshot_source/source.py +++ b/trail-snapshot-source/trail_snapshot_source/source.py @@ -16,6 +16,7 @@ from __future__ import annotations import datetime as dt +import os import polars as pl import psycopg @@ -41,10 +42,15 @@ class SnapshotSource: def __init__(self, options: dict | None = None) -> None: options = options or {} - try: - self._dsn = options["dsn"] - except KeyError: - raise ValueError("snapshot source requires a 'dsn' option") from None + # Option first, environment second - the precedence trail-fmp uses for + # its API key. trail.yaml is a ConfigMap, so a password-bearing DSN has + # to arrive through the environment from a secret. + self._dsn = options.get("dsn") or os.environ.get("SNAPSHOT_DSN") + if not self._dsn: + raise ValueError( + "E-SNAPSHOT-DSN snapshot source requires a connection string; " + "set options.dsn or the SNAPSHOT_DSN environment variable" + ) self._schema = options.get("schema", "snapshot") def _connect(self): diff --git a/trail-snapshot-store/trail_snapshot_store/store.py b/trail-snapshot-store/trail_snapshot_store/store.py index 725e94c..7788460 100644 --- a/trail-snapshot-store/trail_snapshot_store/store.py +++ b/trail-snapshot-store/trail_snapshot_store/store.py @@ -18,6 +18,7 @@ import io import json +import os import polars as pl import psycopg @@ -39,13 +40,16 @@ class PgViewStore(ViewStore): def __init__(self, options: dict | None = None) -> None: options = options or {} - try: - self._dsn = options["dsn"] - except KeyError: + # Option first, environment second — the same precedence trail-fmp uses + # for its API key. trail.yaml is a ConfigMap, so the DSN carrying a + # password must come from the environment (secret-backed) rather than be + # written into config that ends up in version control. + self._dsn = options.get("dsn") or os.environ.get("SNAPSHOT_DSN") + if not self._dsn: raise ValueError( - "views_pg requires a 'dsn' option, e.g. " - "postgresql://snapshot@snapshot-db.trail.svc.cluster.local:5432/snapshot" - ) from None + "E-SNAPSHOT-DSN views_pg requires a connection string; " + "set options.dsn or the SNAPSHOT_DSN environment variable" + ) self._schema = options.get("schema", "snapshot") with self._connect() as c: c.execute(f"CREATE SCHEMA IF NOT EXISTS {self._schema}") From 4a01c6e5dfa7acbcf31c8bdc7cb73062b4e4c779 Mon Sep 17 00:00:00 2001 From: Usman Shahid Date: Wed, 12 Aug 2026 14:16:49 +0400 Subject: [PATCH 4/5] fix(trail-mcp): reconstruct the Dockerfile and bundle the snapshot packages The working version of this file existed only as an uncommitted working-tree edit and was lost when local main was reset to origin/main (upstream untracked deploy/ in 1eb3b06). What remained on disk was the pre-ghcr version: vendoring trail-py and re-adding trail-edgar, which was deliberately removed after it aborted a full 5,368-name build on an unknown ticker. Reconstructed and verified against the running cache-fix-1 image before pushing: trail-lang 0.18.0, trail-fmp 0.3.0, trail-gmd 0.3.0, trail-scores 0.1.0, numpy 2.x, trail-edgar absent. Committed this time. Adds trail-snapshot-store (trail.providers) and trail-snapshot-source (trail.sources). --- deploy/Dockerfile.trail-mcp | 67 +++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 deploy/Dockerfile.trail-mcp diff --git a/deploy/Dockerfile.trail-mcp b/deploy/Dockerfile.trail-mcp new file mode 100644 index 0000000..fec7fbd --- /dev/null +++ b/deploy/Dockerfile.trail-mcp @@ -0,0 +1,67 @@ +# trail-mcp: the Trail MCP server WITH live data-source adapters (FMP / GMD / scores / snapshot). +# +# Build from the aiofmp workspace root (the COPYs below are relative to it): +# docker build -f deploy/Dockerfile.trail-mcp -t /trail-mcp-full: . +# +# RECONSTRUCTED 2026-08-12, and committed this time. The working version of this file previously +# existed only as an uncommitted working-tree edit, and was lost when local main was reset to +# origin/main (upstream untracked deploy/ in 1eb3b06). Reconstruction verified against the running +# cache-fix-1 image: trail-lang 0.18.0, trail-fmp 0.3.0, trail-gmd 0.3.0, trail-scores 0.1.0, +# numpy 2.x, and trail-edgar ABSENT. +# +# The base is the upstream release image — language + MCP server, published by trail-lang's own +# release workflow. This file used to vendor trail-py and reinstall the language on every adapter +# change; pinning a RELEASED version instead is deliberate. An unpinned working tree is what +# silently moved the language from 0.15 to 0.17 underneath a tracked view and invalidated a +# 3.5-hour build. The consequence to remember: local trail-py edits no longer reach the cluster +# until a version is tagged and this pin is bumped. +FROM ghcr.io/trail-language/trail-lang:0.18.0 + +# The base finishes as the unprivileged `trail` user; installs need root, and we drop back after. +USER root +WORKDIR /app + +# aiofmp from the LOCAL tree, not PyPI. It carries fixes ahead of the published version and pip +# would consider a same-versioned wheel sufficient — silently installing a client whose bool query +# params never reach the API, and whose period-based cache never actually avoids a request. +COPY pyproject.toml README.md aiofmp-src/ +COPY aiofmp aiofmp-src/aiofmp +RUN pip install --no-cache-dir ./aiofmp-src + +# Provider adapters. trail-edgar is deliberately ABSENT: EDGAR was removed from trail.yaml after it +# aborted a full 5,368-name build by raising CompanyNotFoundError on a ticker it did not know, while +# only ever covering 39 mega-caps that fmp already served. Two days of runs wrote nothing. +COPY trail-fmp/pyproject.toml trail-fmp/README.md trail-fmp/ +COPY trail-fmp/trail_fmp trail-fmp/trail_fmp +COPY trail-gmd/pyproject.toml trail-gmd/README.md trail-gmd/ +COPY trail-gmd/trail_gmd trail-gmd/trail_gmd +COPY trail-scores/pyproject.toml trail-scores/README.md trail-scores/ +COPY trail-scores/trail_scores trail-scores/trail_scores +RUN pip install --no-cache-dir ./trail-fmp ./trail-gmd ./trail-scores + +# Snapshot integration. These register under DIFFERENT entry-point groups and are not +# interchangeable: the store under `trail.providers` (writeable view stores), the source under +# `trail.sources` (read side). A store declared in the wrong group resolves to nothing and trail +# silently falls back to a local-disk store — a deployment that looks healthy while writing views +# somewhere else entirely. +COPY trail-snapshot-store/pyproject.toml trail-snapshot-store/ +COPY trail-snapshot-store/trail_snapshot_store trail-snapshot-store/trail_snapshot_store +COPY trail-snapshot-source/pyproject.toml trail-snapshot-source/ +COPY trail-snapshot-source/trail_snapshot_source trail-snapshot-source/trail_snapshot_source +RUN pip install --no-cache-dir ./trail-snapshot-store ./trail-snapshot-source + +# numpy is NOT optional despite nothing declaring it. Polars' Rust extension reaches for the NumPy +# C-API capsule on to_numpy paths and, when numpy is missing, raises a PyO3 PanicException that +# ABORTS the process — the server dies with SIGSEGV seconds into a fetch, not with an ImportError. +# It used to arrive transitively (edgartools -> pandas -> numpy); removing EDGAR removed it, and +# nothing failed until runtime. Pinned here explicitly so the coupling is visible. +RUN pip install --no-cache-dir "numpy>=2,<3" + +# Mount points the ConfigMap/PVCs land on. /scores and /views are written at runtime by the server +# (to_file and the view store), so they must be writable by the runtime user. +RUN mkdir -p /cache /gmd-cache /config /scores /views \ + && chown -R trail:trail /cache /gmd-cache /scores /views + +USER trail + +# EXPOSE 3000, ENTRYPOINT ["trail","mcp"] and the streamable-http CMD are inherited from the base. From fc9bd2c5b780dd1d7d4920a7a32d3f417d960009 Mon Sep 17 00:00:00 2001 From: Usman Shahid Date: Wed, 19 Aug 2026 13:31:11 +0400 Subject: [PATCH 5/5] style: satisfy ruff on the snapshot packages CI runs `ruff check . --no-fix` and `ruff format --check .` before the tests, and both failed on the two new packages, so the suite never ran. Import sorting (I001) in three test modules, and formatting in five files. No logic changes: the only edits outside import blocks are line wrapping and trailing blank lines that `ruff format` normalises. The rest of the repo was already clean -- `examples/` and `scripts/` are excluded in `[tool.ruff]`, so the failures were entirely in the new code. --- trail-snapshot-source/tests/conftest.py | 19 +++++++--- trail-snapshot-source/tests/test_source.py | 5 ++- .../trail_snapshot_source/source.py | 1 + trail-snapshot-store/tests/test_store.py | 37 +++++++++++++------ .../trail_snapshot_store/store.py | 1 + 5 files changed, 45 insertions(+), 18 deletions(-) diff --git a/trail-snapshot-source/tests/conftest.py b/trail-snapshot-source/tests/conftest.py index d4cc0b6..51bf856 100644 --- a/trail-snapshot-source/tests/conftest.py +++ b/trail-snapshot-source/tests/conftest.py @@ -1,26 +1,33 @@ import os import pathlib + import psycopg import pytest from psycopg.rows import dict_row # Reuse the harness migrations: this source reads the same schema. MIGRATIONS = pathlib.Path( - "/home/usmanshahid/Documents/claude/workspaces/harness/snapshot/migrations") + "/home/usmanshahid/Documents/claude/workspaces/harness/snapshot/migrations" +) @pytest.fixture def conn(): - c = psycopg.connect(os.environ["SNAPSHOT_TEST_DSN"], autocommit=True, - row_factory=dict_row) + c = psycopg.connect( + os.environ["SNAPSHOT_TEST_DSN"], autocommit=True, row_factory=dict_row + ) c.execute("DROP SCHEMA IF EXISTS snapshot CASCADE") c.execute("LOAD 'age'") c.execute('SET search_path = ag_catalog, "$user", public') - if c.execute("SELECT 1 FROM ag_catalog.ag_graph WHERE name='snapshot_graph'").fetchone(): + if c.execute( + "SELECT 1 FROM ag_catalog.ag_graph WHERE name='snapshot_graph'" + ).fetchone(): c.execute("SELECT ag_catalog.drop_graph('snapshot_graph', true)") for f in sorted(MIGRATIONS.glob("*.sql")): c.execute(f.read_text()) - c.execute("INSERT INTO snapshot.sources (source_id, name) VALUES (1,'test') " - "ON CONFLICT DO NOTHING") + c.execute( + "INSERT INTO snapshot.sources (source_id, name) VALUES (1,'test') " + "ON CONFLICT DO NOTHING" + ) yield c c.close() diff --git a/trail-snapshot-source/tests/test_source.py b/trail-snapshot-source/tests/test_source.py index feb4a60..a24b35f 100644 --- a/trail-snapshot-source/tests/test_source.py +++ b/trail-snapshot-source/tests/test_source.py @@ -1,5 +1,7 @@ """Facts as trail panel columns, plus the changefeed that drives incremental recompute.""" + import os + import pytest from trail_snapshot_source import SnapshotSource @@ -14,7 +16,8 @@ def _fact(conn, subj, pred, val, valid_from, published_at): """INSERT INTO snapshot.facts (subject, predicate, value, kind, valid_from, published_at, fidelity, source_id) VALUES (%s, %s, %s, 'observation', %s, %s, 'vintage', 1)""", - (subj, pred, val, valid_from, published_at)) + (subj, pred, val, valid_from, published_at), + ) def test_freshness_token_is_none_when_empty(conn, src): diff --git a/trail-snapshot-source/trail_snapshot_source/source.py b/trail-snapshot-source/trail_snapshot_source/source.py index 039db34..95a912f 100644 --- a/trail-snapshot-source/trail_snapshot_source/source.py +++ b/trail-snapshot-source/trail_snapshot_source/source.py @@ -13,6 +13,7 @@ date (``trail_fmp/source.py:172``), noting that an amendment carries a newer acceptedDate; this is the same idea for a different backend. """ + from __future__ import annotations import datetime as dt diff --git a/trail-snapshot-store/tests/test_store.py b/trail-snapshot-store/tests/test_store.py index b461116..b6d75ad 100644 --- a/trail-snapshot-store/tests/test_store.py +++ b/trail-snapshot-store/tests/test_store.py @@ -1,5 +1,7 @@ """The Postgres ViewStore: trail's 5-method ViewStore ABC, backed by the snapshot DB.""" + import os + import polars as pl import pytest from trail.store import Manifest @@ -16,15 +18,25 @@ def store(): def _mf(name="rating", expr_hash="h1"): return Manifest( - name=name, kind="model", exports=("score",), expr_hash=expr_hash, - sources=("fmp",), freshness={"fmp": "t1"}, - built_at="2026-01-01T00:00:00Z", columns=("views.rating.score",), + name=name, + kind="model", + exports=("score",), + expr_hash=expr_hash, + sources=("fmp",), + freshness={"fmp": "t1"}, + built_at="2026-01-01T00:00:00Z", + columns=("views.rating.score",), ) def test_write_then_read_roundtrips(store): - df = pl.DataFrame({"entity": ["AAPL", "MSFT"], "time": ["2025-12-31"] * 2, - "views.rating.score": [0.8, 0.6]}) + df = pl.DataFrame( + { + "entity": ["AAPL", "MSFT"], + "time": ["2025-12-31"] * 2, + "views.rating.score": [0.8, 0.6], + } + ) store.write("rating", df, _mf()) got = store.read("rating") assert got.shape == df.shape @@ -63,12 +75,15 @@ def test_delete_and_list(store): def test_schema_and_dtypes_survive_the_roundtrip(store): """Parquet round-trip must not silently coerce types - a float score coming back as a string would break every downstream comparison.""" - df = pl.DataFrame({ - "entity": ["AAPL"], "time": ["2025-12-31"], - "views.rating.score": [0.8], - "views.rating.grade": ["A"], - "views.rating.gate_ok": [True], - }) + df = pl.DataFrame( + { + "entity": ["AAPL"], + "time": ["2025-12-31"], + "views.rating.score": [0.8], + "views.rating.grade": ["A"], + "views.rating.gate_ok": [True], + } + ) store.write("rating", df, _mf()) got = store.read("rating") assert got.dtypes == df.dtypes diff --git a/trail-snapshot-store/trail_snapshot_store/store.py b/trail-snapshot-store/trail_snapshot_store/store.py index 7788460..e857fdf 100644 --- a/trail-snapshot-store/trail_snapshot_store/store.py +++ b/trail-snapshot-store/trail_snapshot_store/store.py @@ -14,6 +14,7 @@ that trail resolves the store from ``config.providers["views"]`` — a hardcoded key — so the trail.yaml stanza must be named ``views`` whatever the driver is. """ + from __future__ import annotations import io