chore(ruff): the acceptance was whatever the default happened to be [skip-docs]

`uv sync --frozen` resolved ruff 0.15.22 and the tree read clean. A loose
install resolves 0.16.6, under which the SAME untouched code reports 148
findings -- 4 more than round 9 counted, because this round added four files.
All of them are new rules rather than new defects: 0.16 widened the default
rule set to whole families (YTT, ASYNC, PL, ISC, C4, UP, B, SIM, FURB, ...).

(`[skip-docs]` is for CLAUDE.md, which a lint-configuration change does not
reach. README's developer section IS updated in this commit.)

THE DEFECT IS NOT THE 148, IT IS THAT NOBODY CHOSE THEM. `[tool.ruff]` set only
`line-length` and `target-version`, so the acceptance was ruff's default, and
the tree stayed green only as long as the lockfile froze an old ruff. `select`
is now written down: `E4`, `E7`, `E9`, `F` (the historical default), `I`
because this tree already keeps imports sorted, and `RUF100` so a `noqa` that
has stopped meaning anything is caught rather than left as decoration. Pin
`ruff>=0.9` -> `ruff>=0.16.6,<0.17`.

Per rule, before -> after: RUF100 50 -> 0, I001 20 -> 0, ISC004 19, PLW1510 8,
C408 8, EXE001 6, RUF007 5, PLE2515 4, UP031 3, B017 3, and fourteen more with
2 or fewer -- the families out of the declared set are 0 by selection, and 148
is the number to start from if they are adopted, which is a separate decision
and not one to take inside a version-pin commit. 57 were auto-fixed; one E402
was reintroduced by the import-sorting fix merging a block away from its
`noqa`, and got the directive back rather than a bare one.

`S` IS MEASURED OUT, NOT ASSUMED OUT: it reports 2657 `S101` on a suite whose
every assertion is an `assert`, and `S603` flags 19 subprocess calls of which
one was ever marked -- selecting it buys 18 suppressions and no defect. Two
`noqa` directives naming non-selected rules were dropped with that reason
recorded in the configuration instead.

THE TWO FILES 0.16 WOULD REFORMAT ARE MARKDOWN, NOT PYTHON: `README.md` and
`docs/2026-09-08-blindsone-below-k-k2.md`. 0.16 formats fenced Python inside
markdown, and both blocks are RECORDS -- the second is a quotation of
`COST_VOCABULARY` as it stood when that measurement was taken. Reformatting a
quotation makes it stop being one, so markdown is excluded from the formatter
and `ruff format --check .` stays in the acceptance over `.py`.

`tools/okf_consume_measure.py` is fenced by the order as run-not-edited, so its
three findings are exempted by path with the reason and the debt named, and its
bytes are untouched.

THE LOCKFILE TRAP IS CLOSED, NOT AVOIDED. `uv.lock` predated the `[ocr]` extra,
so any unlocked resolve wrote that extra's transitive tree back into it -- 681
insertions over 4 deletions, twice now, and round 9 recorded the cause as
`uv run` OUTSIDE the project when it is `uv run` without `--frozen` INSIDE it.
The relock is complete for every declared extra (703 insertions, 26 deletions),
and measured after it, an unfrozen `uv run` leaves the file alone.

`ruff check src tests tools`, `ruff format --check .` (0.16.6), `mypy src` over
21 files and 1535 tests, all green.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/test_adjudicate.py

@@ -39,9 +39,9 @@ from llm_ingestion_okf.segmentation import parse_segmentation_plan
 
 sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "tools"))
 
-import okf_adjudicate  # noqa: E402
+import okf_adjudicate
 
-from llm_ingestion_okf import propose as okf_propose_segments  # noqa: E402
+from llm_ingestion_okf import propose as okf_propose_segments
 
 DOCUMENT = """# N500 Vegbygging
 

tests/test_attested_computation.py

@@ -28,10 +28,10 @@ from __future__ import annotations
 from pathlib import Path
 
 import pytest
+from test_import_flow import CONCEPT, StubImportGate, place, run
 
 from llm_ingestion_okf.materialize import parse_frontmatter
 from llm_ingestion_okf.profiles import DEFAULT, OKF_V0_2, STRICT_V1, FrontmatterSchema
-from test_import_flow import CONCEPT, StubImportGate, place, run
 
 ATTESTED = "Attested Computation"
 

tests/test_cid_measure.py

@@ -18,7 +18,7 @@ from pathlib import Path
 
 sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "tools"))
 
-import okf_cid_measure  # noqa: E402
+import okf_cid_measure
 
 
 def test_known_cid_fraction() -> None:

tests/test_fidelity.py

@@ -24,7 +24,7 @@ import pytest
 
 sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "tools"))
 
-import okf_fidelity  # noqa: E402
+import okf_fidelity
 
 DOCUMENT_XML = """<?xml version="1.0"?>
 <w:document xmlns:w="x"><w:body>

tests/test_guard_adapter.py

@@ -24,10 +24,10 @@ import inspect
 from pathlib import Path
 from typing import Any
 
-import pytest
-
 import llm_ingestion_guard as guard
+import pytest
 from llm_ingestion_guard import okf as guard_okf
+
 from llm_ingestion_okf import guard_adapter, importer, inbox
 from llm_ingestion_okf.errors import MaterializationError
 from llm_ingestion_okf.importer import import_bundle

tests/test_import_consumable.py

@@ -22,12 +22,12 @@ import subprocess
 import sys
 from pathlib import Path
 
+from test_import_flow import CONCEPT, StubImportGate, place
+
 from llm_ingestion_okf.importer import import_bundle
 from llm_ingestion_okf.materialize import parse_frontmatter
 from llm_ingestion_okf.profiles import DEFAULT, SEGMENTED_V1
 
-from test_import_flow import CONCEPT, StubImportGate, place
-
 PROJECT_ROOT = Path(__file__).resolve().parents[1]
 TOOL = PROJECT_ROOT / "tools" / "okf_consume.py"
 KNOWN_POSITIVE = PROJECT_ROOT / "examples" / "ingest-golden-segmented-okf-v0-2" / "expected-bundle"
@@ -120,7 +120,7 @@ def test_the_default_profile_names_no_root_key_and_says_so(tmp_path: Path) -> No
             gate=StubImportGate(),
             root_frontmatter_values={"bundle_id": "x"},
         )
-    except Exception as exc:  # noqa: BLE001 - the code is the assertion
+    except Exception as exc:
         assert getattr(exc, "code", "") == "index_root_frontmatter_unexpected"
     else:  # pragma: no cover - a pass here is the defect
         raise AssertionError("an unnamed root key was written")

tests/test_import_facets.py

@@ -32,7 +32,7 @@ from __future__ import annotations
 from dataclasses import replace
 from pathlib import Path
 
-from test_import_flow import EXTERNAL, INGESTED_AT, AUTOMATIC, StubImportGate, place
+from test_import_flow import AUTOMATIC, EXTERNAL, INGESTED_AT, StubImportGate, place
 
 from llm_ingestion_okf.importer import ImportResult, import_bundle
 from llm_ingestion_okf.profiles import DEFAULT, STRUCTURED_V1, BundleProfile, FacetPolicy

tests/test_okf_project.py

@@ -20,8 +20,10 @@ PROJECT_ROOT = Path(__file__).resolve().parents[1]
 sys.path.insert(0, str(PROJECT_ROOT / "src"))
 
 from llm_ingestion_okf import project  # noqa: E402
-from llm_ingestion_okf.cli import build  # noqa: E402
-from llm_ingestion_okf.cli import parse_args  # noqa: E402
+from llm_ingestion_okf.cli import (  # noqa: E402
+    build,
+    parse_args,
+)
 from llm_ingestion_okf.cli import main as okf_main  # noqa: E402
 from llm_ingestion_okf.errors import IngestError  # noqa: E402
 

tests/test_okf_v0_2_characterization.py

@@ -32,6 +32,7 @@ from pathlib import Path
 from typing import Any
 
 import pytest
+from test_import_flow import StubImportGate, place, run
 
 from llm_ingestion_okf.errors import MaterializationError
 from llm_ingestion_okf.materialize import (
@@ -40,7 +41,6 @@ from llm_ingestion_okf.materialize import (
     parse_frontmatter,
 )
 from llm_ingestion_okf.profiles import DEFAULT, STRICT_V1, BundleProfile, FrontmatterSchema
-from test_import_flow import StubImportGate, place, run
 
 INGESTED_AT = "2026-07-25T12:00:00Z"
 

tests/test_okf_watch.py

@@ -23,8 +23,7 @@ import pytest
 
 sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "tools"))
 
-import okf_watch  # noqa: E402
-
+import okf_watch
 
 # --- the exit-status / empty-result seam -----------------------------------
 

tests/test_outline_measure.py

@@ -27,9 +27,9 @@ from pathlib import Path
 
 sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "tools"))
 
-import okf_outline_measure  # noqa: E402
+import okf_outline_measure
 
-from llm_ingestion_okf import propose as okf_propose_segments  # noqa: E402
+from llm_ingestion_okf import propose as okf_propose_segments
 
 OUTLINE_DOC = """1 Innledning
 

tests/test_pandoc_binary.py

@@ -46,9 +46,9 @@ def test_the_resolved_binary_is_the_bundled_one_not_a_path_binary() -> None:
 
 
 def test_the_resolved_binary_reports_the_pinned_version() -> None:
-    import subprocess  # noqa: S404 - test-side only; `src/` stays free of it
+    import subprocess
 
-    reported = subprocess.run(  # noqa: S603
+    reported = subprocess.run(
         [str(resolve_pandoc()), "--version"], capture_output=True, text=True
     ).stdout.split("\n")[0]
     assert reported == f"pandoc {PANDOC_VERSION}"

tests/test_propose_segments.py

@@ -25,9 +25,8 @@ from pathlib import Path
 
 import pytest
 
-from llm_ingestion_okf.segmentation import parse_segmentation_plan
-
 from llm_ingestion_okf import propose as okf_propose_segments
+from llm_ingestion_okf.segmentation import parse_segmentation_plan
 
 DOCUMENT = """# N500 Vegbygging
 

tests/test_provenance.py

@@ -28,7 +28,6 @@ import pytest
 
 from llm_ingestion_okf.extract import extract_text, source_units
 from llm_ingestion_okf.inbox import render_inbox_concept
-from llm_ingestion_okf.propose import RULE_SHEET_SECTION, find_candidates
 from llm_ingestion_okf.profiles import (
     DEFAULT,
     SEGMENTED_OKF_V0_2,
@@ -36,6 +35,7 @@ from llm_ingestion_okf.profiles import (
     STRICT_V1,
     STRUCTURED_V1,
 )
+from llm_ingestion_okf.propose import RULE_SHEET_SECTION, find_candidates
 from llm_ingestion_okf.segmentation import SegmentEntry
 
 FIXTURES = Path(__file__).parent / "fixtures"

tests/test_segmented_collisions.py

@@ -24,10 +24,10 @@ import hashlib
 from pathlib import Path
 from typing import Any
 
+from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.inbox import GateDecision, process_inbox
 from llm_ingestion_okf.materialize import NAME_MAX_BYTES
 from llm_ingestion_okf.profiles import DEFAULT, SEGMENTED_V1
-from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.segmentation import (
     SegmentationPlan,
     observed_extractor_version,

tests/test_segmented_index.py

@@ -25,6 +25,7 @@ import hashlib
 from pathlib import Path
 from typing import Any
 
+from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.inbox import GateDecision, process_inbox
 from llm_ingestion_okf.profiles import (
     DEFAULT,
@@ -32,7 +33,6 @@ from llm_ingestion_okf.profiles import (
     SEGMENTED_V1,
     STRUCTURED_V1,
 )
-from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.segmentation import (
     SegmentationPlan,
     observed_extractor_version,

tests/test_segmented_rebuild.py

@@ -39,9 +39,9 @@ from typing import Any
 import pytest
 
 from llm_ingestion_okf.errors import SegmentationError
+from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.inbox import GateDecision, process_inbox
 from llm_ingestion_okf.profiles import SEGMENTED_V1
-from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.segmentation import (
     SegmentationPlan,
     observed_extractor_version,

tests/test_segmented_rounds.py

@@ -36,9 +36,9 @@ import hashlib
 from pathlib import Path
 from typing import Any
 
+from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.inbox import GateDecision, process_inbox
 from llm_ingestion_okf.profiles import DEFAULT, SEGMENTED_V1
-from llm_ingestion_okf.extract import extract_text
 from llm_ingestion_okf.segmentation import (
     SegmentationPlan,
     observed_extractor_version,

tests/test_table_measure.py

@@ -26,10 +26,10 @@ from pathlib import Path
 
 sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "tools"))
 
-import okf_outline_measure  # noqa: E402
-import okf_table_measure  # noqa: E402
+import okf_outline_measure
+import okf_table_measure
 
-from llm_ingestion_okf import propose as okf_propose_segments  # noqa: E402
+from llm_ingestion_okf import propose as okf_propose_segments
 
 GRID_DOC = """+-------+-------+
 | Navn  | Verdi |

tests/test_tie_shared_rank.py

@@ -30,7 +30,6 @@ from __future__ import annotations
 import sys
 from pathlib import Path
 
-
 PROJECT_ROOT = Path(__file__).resolve().parents[1]
 sys.path.insert(0, str(PROJECT_ROOT / "tools"))