home-assistant/core

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https://github.com/home-assistant/core · scanned 2026-05-21 18:15 UTC (2 weeks ago) · 10 languages

2255 findings (179 legacy + 2076 scanner) 11/13 scanners ran 90th percentile · Python · huge (>500K LoC) Scanner says 70 (higher by 19)

File as issue Image v2 schema

UNIFIED Repobility · multi-layer engine · AI coders

Complete repo analysis

Last scanned 2 weeks ago · v2 · 1217 findings from 2 sources. Findings combine the legacy security pipeline AND the multi-layer engine (atlas, wiring, flows, ranked) AND verified AI agent contributions.

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100.0% cov · 1038 gaps

Score breakdown â 2026-05-18-v5

Component	Sub-score	Weight	Contribution
`structure_score`	60.0	0.15	9.00
`security_score`	100.0	0.25	25.00
`testing_score`	100.0	0.20	20.00
`documentation_score`	100.0	0.15	15.00
`practices_score`	94.0	0.15	14.10
`code_quality`	66.0	0.10	6.60
Overall		1.00	89.7

security_score may be inflated — optional security scanners were skipped on this fast scan

Severity distribution — click a segment to filter

Active filters: excluding tests × Reset all

Severity: Critical 51 High 143 Medium 106 Low 723 9-Layer: Software Security Quality Integrity Frontend Hardware Data Network Cicd Source: Legacy 179 9-layer 1038 Crowd 0 Layer: Quality 1032 Security 130 Cicd 15 Software 16 Api 1 Data 1 Network 17 Hardware 4 Frontend 1

Exclude dismissed / FP Exclude test files

Bug-class explainers. Each card groups findings of the same shape — these are the patterns most likely to ship to prod and reappear in future scans unless you systematically fix the cause, not just the instance.

Fragile runtime 158 findings

What it is: Code that runs but breaks under predictable input — division by zero, missing keys, unbounded loops, off-by-one slicing.

Why it matters: Reaches production undetected because happy-path tests pass. First user with a weird input crashes the request.

How AI causes it: AI loves writing the happy path; doesn't probe edge cases unless explicitly asked.

Fix approach: Add property-based tests. Wrap external inputs with explicit validators. Use the framework's typed deserializer (Pydantic, attrs).

12 matching findings on this repo

medium [MINED111] Bare except continues silently: Bare `except:` (or `except Exception… tests/test_config_entries.py:7306
medium [MINED111] Bare except continues silently: Bare `except:` (or `except Exception… tests/test_config_entries.py:7019
medium [MINED111] Bare except continues silently: Bare `except:` (or `except Exception… homeassistant/requirements.py:243
medium [SEC134] AI scaffold leftover — Lorem ipsum / example.com / John Doe in code: L… homeassistant/components/demo/update.py:36
medium [SEC127] AI agent stub — TODO: implement / pass placeholder body: Function body… homeassistant/components/bond/entity.py:151
medium [COMP001] High cognitive complexity: Function `_merge_policies` has cognitive c… homeassistant/auth/permissions/merge.py:24
low Duplicate top-level symbol appears in a patch-style file homeassistant/components/zwave_js/triggers/value_…:1
low Duplicated implementation block across source files homeassistant/components/androidtv_remote/config_…:258
low Duplicated implementation block across source files homeassistant/components/amberelectric/services.py:43
low Duplicated implementation block across source files homeassistant/components/altruist/sensor.py:5
low Duplicated implementation block across source files homeassistant/components/airzone_cloud/water_heat…:127
low Duplicated implementation block across source files homeassistant/components/airzone_cloud/sensor.py:183

View all fragile runtime findings →

Legacy markers 477 findings

What it is: TODO, FIXME, XXX, HACK comments. Often indicate a known-broken path the author meant to fix.

Why it matters: Each marker is an unfinished thought. Production code shouldn't ship with debt that's documented but not tracked.

How AI causes it: AI mirrors the style of the codebase, so existing TODOs propagate into new code.

Fix approach: Convert each into a ticket. Delete the comment when the ticket lands. Use a pre-commit hook to block new TODOs without an issue link.

12 matching findings on this repo

low Legacy-named symbol `async_pre_backup` in pylint/plugins/pylint_home_assistant/…
low Legacy-named symbol `unit_system_v2` in tests/test_core_config.py:350
low Legacy-named symbol `test_get_integration_legacy` in tests/test_loader.py:497
low Legacy-named symbol `restore_backup` in tests/test_backup_restore.py:113
low Legacy-named symbol `restore_backup` in tests/test_main.py:81
low Legacy-named symbol `test_show_progress_legacy` in tests/test_data_entry_flow.p…
low Legacy-named symbol `num_unused` in tests/syrupy.py:427
low Legacy-named symbol `test_async_run_job_deprecated` in tests/test_core.py:3138
low Legacy-named symbol `is_legacy` in tests/auth/providers/test_homeassistant.py:34
low Legacy-named symbol `mock_env_copy` in tests/util/test_package.py:59
low Legacy-named symbol `create_backup` in tests/components/conftest.py:523
low Legacy-named symbol `test_get_trigger_capabilities_legacy` in tests/components/…

View all legacy markers findings →

Commented-out code 174 findings

What it is: Lines of source that were intentionally disabled but never deleted.

Why it matters: Git already remembers history — commented code rots, becomes wrong, and adds noise to diffs.

How AI causes it: AI sometimes comments out broken code instead of fixing it. Reviewers approve out of inertia.

Fix approach: Delete. Trust `git log`. If you really need to remember, save it in a notes file under `docs/`.

12 matching findings on this repo

info Commented-code block (5 lines) in pylint/plugins/pylint_home_assistant/checkers…
info Commented-code block (5 lines) in tests/conftest.py:1975
info Commented-code block (5 lines) in tests/scripts/check_requirements/test_pypi.py…
info Commented-code block (5 lines) in tests/components/common.py:228
info Commented-code block (10 lines) in tests/components/homekit_controller/common.p…
info Commented-code block (5 lines) in tests/components/owntracks/test_device_tracke…
info Commented-code block (9 lines) in tests/components/emulated_hue/test_hue_api.py…
info Commented-code block (6 lines) in tests/components/nederlandse_spoorwegen/test_…
info Commented-code block (6 lines) in tests/components/derivative/test_sensor.py:366
info Commented-code block (6 lines) in tests/components/recorder/test_websocket_api.…
info Commented-code block (6 lines) in tests/components/switchbot/test_event.py:61
info Commented-code block (6 lines) in tests/components/tradfri/test_init.py:217

View all commented-out code findings →

Config drift 130 findings

What it is: Settings duplicated across env files, Docker compose, K8s, and code defaults, all with slightly different values.

Why it matters: Production behaviour depends on whichever copy your loader reads first. Subtle bugs in staging that don't reproduce in dev.

How AI causes it: AI writes new config from memory rather than reading the existing source.

Fix approach: Pick one source of truth (env vars + a settings module). Have every other place import from there. Lint for duplicates in CI.

12 matching findings on this repo

low [COMP001] High cognitive complexity: Function `ensure_config_path` has cognitiv… homeassistant/__main__.py:37
high [MINED131] pre-commit hook `https://github.com/cdce8p/python-typing-update` pin… .pre-commit-config.yaml:51
high [MINED131] pre-commit hook `https://github.com/rbubley/mirrors-prettier` pinned… .pre-commit-config.yaml:43
high [MINED131] pre-commit hook `https://github.com/adrienverge/yamllint.git` pinned… .pre-commit-config.yaml:39
high [MINED131] pre-commit hook `https://github.com/pre-commit/pre-commit-hooks` pin… .pre-commit-config.yaml:27
high [MINED131] pre-commit hook `https://github.com/zizmorcore/zizmor-pre-commit` pi… .pre-commit-config.yaml:20
high [MINED131] pre-commit hook `https://github.com/codespell-project/codespell` pin… .pre-commit-config.yaml:10
high [MINED131] pre-commit hook `https://github.com/astral-sh/ruff-pre-commit` pinne… .pre-commit-config.yaml:2
high [MINED106] Phantom test coverage: test_entry_subentry_deleted_config_entry: Tes… tests/test_config_entries.py:2913
high [MINED106] Phantom test coverage: test_entry_subentry_unknown_config_entry: Tes… tests/test_config_entries.py:2900
high [MINED106] Phantom test coverage: test_entry_options_unknown_config_entry: Test… tests/test_config_entries.py:2547
high [MINED106] Phantom test coverage: test_config_folder_not_in_path: Test function… tests/test_loader.py:1292

View all config drift findings →

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