Mostly safe — a couple of notes worth reading.
Scanned 5/3/2026, 6:28:38 PM·Cached result·Fast Scan·45 rules·How we decide ↗
AIVSS Score
Low
Severity Breakdown
0
critical
0
high
24
medium
1
low
MCP Server Information
Findings
This package received a B grade with a safety score of 73/100 and carries moderate risk due to 24 medium-severity findings, all related to server configuration and readiness issues. While no critical or high-severity vulnerabilities were detected, the configuration gaps suggest the server may not be fully hardened for production use. You should review the specific configuration recommendations before deploying this package in a security-sensitive environment.
No known CVEs found for this package or its dependencies.
Scan Details
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25 of 25 findings
25 findings
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 68 | print(" - /include-tags-mcp: Only operations with the 'items' tag") |
| 69 | print(" - /exclude-tags-mcp: All operations except those with the 'search' tag") |
| 70 | print(" - /combined-include-mcp: Operations with 'search' tag or delete_item operation") |
| 71 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 26 | if __name__ == "__main__": |
| 27 | import uvicorn |
| 28 | |
| 29 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 134 | if __name__ == "__main__": |
| 135 | import uvicorn |
| 136 | |
| 137 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 31 | if __name__ == "__main__": |
| 32 | import uvicorn |
| 33 | |
| 34 | uvicorn.run(mcp_app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 43 | if __name__ == "__main__": |
| 44 | import uvicorn |
| 45 | uvicorn.run(app, host="0.0.0.0", port=8000) |
| 46 | ``` |
| 47 | and run the server using `python fastapi_mcp_server.py`, which will serve you the MCP at `http://localhost:8000/mcp`. |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 23 | if __name__ == "__main__": |
| 24 | import uvicorn |
| 25 | |
| 26 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 58 | if __name__ == "__main__": |
| 59 | import uvicorn |
| 60 | |
| 61 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 23 | if __name__ == "__main__": |
| 24 | import uvicorn |
| 25 | |
| 26 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 15 | if __name__ == "__main__": |
| 16 | import uvicorn |
| 17 | |
| 18 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
Service binds to 0.0.0.0 — all network interfaces. For MCP servers that only need to talk to a single parent process, bind to 127.0.0.1 (or a Unix domain socket) instead.
Evidence
| 20 | if __name__ == "__main__": |
| 21 | import uvicorn |
| 22 | |
| 23 | uvicorn.run(app, host="0.0.0.0", port=8000) |
Remediation
Bind to 127.0.0.1 for local-only access. If cross-host access is truly required, put the service behind an authenticated reverse proxy rather than exposing it on 0.0.0.0.
MCP tool input schema exposes an unconstrained string/any field with a risky name (command/query/sql/code/script/url/path/expr/ eval). Any caller can pass arbitrary values, which typically widens the tool's blast radius well beyond its intent. Narrow the schema with `.enum()`, `.regex()`, `.max()`, `Literal[...]`, Pydantic `Field(max_length=..., pattern=...)`, or a JSON Schema `enum` / `pattern` / `maxLength`.
Evidence
| 21 | class HTTPRequestInfo(BaseType): |
| 22 | method: str |
| 23 | path: str |
| 24 | headers: Dict[str, str] |
| 25 | cookies: Dict[str, str] |
| 26 | query_params: Dict[str, str] |
Remediation
Shape the schema to the tool's actual intent: - Zod: chain `.enum([...])`, `.regex(/.../)`, or `.max(n)`; prefer `z.enum([...])` or `z.literal(...)` when the value set is small. - Pydantic: use `Literal["a", "b"]` or `Field(max_length=..., pattern=r"...")`. - JSON Schema: add `"enum"`, `"pattern"`, or `"maxLength"` to the property. An overbroad schema is an "overpowered tool" — the model has nothing to prevent it from calling the tool with input far beyond what the tool's prose contract
MCP tool input schema exposes an unconstrained string/any field with a risky name (command/query/sql/code/script/url/path/expr/ eval). Any caller can pass arbitrary values, which typically widens the tool's blast radius well beyond its intent. Narrow the schema with `.enum()`, `.regex()`, `.max()`, `Literal[...]`, Pydantic `Field(max_length=..., pattern=...)`, or a JSON Schema `enum` / `pattern` / `maxLength`.
Evidence
| 502 | raise Exception(f"Unknown tool: {tool_name}") |
| 503 | |
| 504 | operation = operation_map[tool_name] |
| 505 | path: str = operation["path"] |
| 506 | method: str = operation["method"] |
| 507 | parameters: List[Dict[str, Any]] = operation.get("parameters", []) |
| 508 | arguments = arguments.copy() if arguments else {} # Deep copy arguments to avoid mutating the original |
Remediation
Shape the schema to the tool's actual intent: - Zod: chain `.enum([...])`, `.regex(/.../)`, or `.max(n)`; prefer `z.enum([...])` or `z.literal(...)` when the value set is small. - Pydantic: use `Literal["a", "b"]` or `Field(max_length=..., pattern=r"...")`. - JSON Schema: add `"enum"`, `"pattern"`, or `"maxLength"` to the property. An overbroad schema is an "overpowered tool" — the model has nothing to prevent it from calling the tool with input far beyond what the tool's prose contract
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 19 | enable-cache: true |
| 20 | |
| 21 | - name: Set up Python |
| 22 | uses: actions/setup-python@v5 |
| 23 | with: |
| 24 | python-version-file: ".python-version" |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 13 | fetch-depth: 0 |
| 14 | |
| 15 | - name: Install uv |
| 16 | uses: astral-sh/setup-uv@v5 |
| 17 | with: |
| 18 | version: "0.6.12" |
| 19 | enable-cache: true |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 8 | deploy: |
| 9 | runs-on: ubuntu-latest |
| 10 | steps: |
| 11 | - uses: actions/checkout@v4 |
| 12 | with: |
| 13 | fetch-depth: 0 |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 11 | name: Ruff |
| 12 | runs-on: ubuntu-latest |
| 13 | steps: |
| 14 | - uses: actions/checkout@v4 |
| 15 | |
| 16 | - name: Install uv |
| 17 | uses: astral-sh/setup-uv@v5 |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 64 | python-version: ["3.10", "3.11", "3.12"] |
| 65 | |
| 66 | steps: |
| 67 | - uses: actions/checkout@v4 |
| 68 | |
| 69 | - name: Install uv |
| 70 | uses: astral-sh/setup-uv@v5 |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 38 | - uses: actions/checkout@v4 |
| 39 | |
| 40 | - name: Install uv |
| 41 | uses: astral-sh/setup-uv@v5 |
| 42 | with: |
| 43 | version: "0.6.12" |
| 44 | enable-cache: true |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 81 | run: uv run pytest --cov=fastapi_mcp --cov-report=xml |
| 82 | |
| 83 | - name: Upload coverage to Codecov |
| 84 | uses: codecov/codecov-action@v5 |
| 85 | with: |
| 86 | token: ${{ secrets.CODECOV_TOKEN }} |
| 87 | fail_ci_if_error: false |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 14 | - uses: actions/checkout@v4 |
| 15 | |
| 16 | - name: Install uv |
| 17 | uses: astral-sh/setup-uv@v5 |
| 18 | with: |
| 19 | version: "0.6.12" |
| 20 | enable-cache: true |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 21 | cache-dependency-glob: "uv.lock" |
| 22 | |
| 23 | - name: Set up Python |
| 24 | uses: actions/setup-python@v5 |
| 25 | with: |
| 26 | python-version-file: ".python-version" |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 67 | - uses: actions/checkout@v4 |
| 68 | |
| 69 | - name: Install uv |
| 70 | uses: astral-sh/setup-uv@v5 |
| 71 | with: |
| 72 | version: "0.6.12" |
| 73 | python-version: ${{ matrix.python-version }} |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 35 | name: MyPy |
| 36 | runs-on: ubuntu-latest |
| 37 | steps: |
| 38 | - uses: actions/checkout@v4 |
| 39 | |
| 40 | - name: Install uv |
| 41 | uses: astral-sh/setup-uv@v5 |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
GitHub Actions `uses:` reference is not pinned to a 40-character commit SHA. Tags (`@v4`) and branches (`@main`) are mutable — a compromised maintainer or a tag rewrite can substitute malicious code into your CI pipeline silently. Pin to a SHA: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab`. For readability, include the version as a trailing comment: `# v4.1.1`. Tools like `pinact` / `ratchet` automate this. Allowed unpinned forms (excluded by the rule): - Local actions `.
Evidence
| 45 | cache-dependency-glob: "uv.lock" |
| 46 | |
| 47 | - name: Set up Python |
| 48 | uses: actions/setup-python@v5 |
| 49 | with: |
| 50 | python-version-file: ".python-version" |
Remediation
Pin every `uses:` to a 40-character commit SHA. Trailing comment with the version helps reviewers: `uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v4.1.1` Automate the migration with `pinact` (https://github.com/suzuki-shunsuke/pinact) or `ratchet` (https://github.com/sethvargo/ratchet). Add a `pinact run --check` pre-commit hook so future PRs stay pinned. Re-pin when the action releases a new version — Dependabot can do this automatically with `version-update-strategy: inc
Silent error swallowing detected. An except clause that does pass or ... discards the exception with no log, no metric, and no trace. This blinds incident response and hides real failures.
Evidence
| 130 | if self._manager_task and not self._manager_task.done(): |
| 131 | self._manager_task.cancel() |
| 132 | try: |
| 133 | await self._manager_task |
| 134 | except asyncio.CancelledError: |
| 135 | pass |
| 136 | self._manager_started = False |
Remediation
Log the exception at minimum (`logger.exception(e)`), emit a metric, or re-raise if the error is not recoverable. If you genuinely want to ignore an exception, say so with a comment.