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mlops-validation

Add the validation layers that gate a merge — ty typing, Ruff linting, pytest coverage, structured logging, and the trivy, pip-audit, and gitleaks scans. Use when hardening code quality or wiring the mise run check task.

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Precio sin confirmar★ 22 Estrellas de GitHubRegistro actualizado · 13 sept 2026agent-skill

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MLOps Validation

Goal

To ensure software quality, reliability, and security through automated validation layers. This skill enforces Strict Typing (ty), Unified Linting (ruff), Comprehensive Testing (pytest), Structured Logging, and Supply-Chain Scanning (pip-audit, gitleaks, trivy).

Prerequisites

Language: Python 3.14
Manager: uv; Tasks: mise
Context: Ensuring code quality before merge/deploy.

Instructions

1. The Task Vocabulary

Every check below is a mise task, so the same command runs locally, in the git hook, and in CI. Never invoke the underlying tool by hand in a hook or a workflow — the task is the single definition.

Task	Tool	What it proves
`check:format`	`dprint`, `validate-pyproject`, `ruff format --check`, `uv lock --check`	Files and manifests are canonical and the lockfile is current.
`check:lint`	`ruff check`	No lint violation, including the `S` (security) rules.
`check:types`	`ty check`	Type annotations are consistent.
`check:vuln`	`pip-audit`	No known CVE in the resolved Python dependencies.
`check:leaks`	`gitleaks`	No secret in the staged change or the recent history.
`check:scan`	`trivy`	No misconfiguration, leaked secret, or forbidden license in the tree.
`check:actions`	`actionlint`, `zizmor`	Workflows are valid and not vulnerable.
`test`	`pytest`	Behavior is covered and correct.

mise run check runs the check:* tasks in parallel; mise run all chains format -> check -> test -> build and is the only gate anyone needs to remember.

2. Static Analysis (Typing & Linting)

Catch errors before they run.

Typing:
- Tool: ty (Astral type checker; pre-1.0, pin a compatible range such as ty>=0.0.69,<0.1). The mandated checker — do not use mypy.
- Rule: No Any (unless absolutely necessary). Fully typed function signatures.
- Pragmatism: ty does not yet model every dynamic library (MLflow, pandera, Pydantic). Silence the specific rule categories they trigger in [tool.ty.rules], with a comment saying why — never disable the checker wholesale.
- DataFrames: Use pandera schemas to validate DataFrame structures/types.
- Classes: Use pydantic for data modeling and runtime validation.
Linting & Formatting:
- Tool: ruff 0.16+ (replaces black, isort, pylint, flake8, bandit).
- Rule: Zero tolerance for linter errors. Use noqa sparingly and with justification.
- Config: Centralize in pyproject.toml, with an explicit [tool.ruff.lint] select list. Ruff 0.16 expanded the default rule set from 59 to 413 rules, so a project that relies on the default set changes behavior on upgrade while an explicit select list does not.
- Markdown: Ruff 0.16 also formats Python code blocks inside .md files. Expect a one-time reformat of your documentation on the first run, and commit it.

3. Testing Strategy

Verify behavior and prevent regressions.

Tool: pytest (9.x).
Structure: Mirror src/ in tests/.
```
src/pkg/mod.py -> tests/test_mod.py
```
Fixtures: Use tests/conftest.py for shared setup (mock data, temp paths).
Coverage: Measure with pytest-cov and set --cov-fail-under to the level the suite actually reaches, so any drop is a visible regression rather than slack under a round number.

Pattern: Use Given-When-Then in comments.

def test_pipeline_execution(input_data):
    # Given: Valid input data
    # When: The pipeline processes the data
    # Then: The output content matches expectations

MLflow in tests: Point the tests at a SQLite tracking store, not the deprecated file store — but build it once. Creating a fresh MLflow SQLite database runs the full Alembic migration chain (measured at roughly 7 seconds per database), so a session-scoped fixture should migrate one template database and each test should shutil.copyfile it into its own tmp_path (roughly 0.07 seconds). Migrating per test turned a 34-second suite into a 339-second one.

4. Structured Logging

Enable observability and debugging.

Tool: loguru, configured through a small logging service so sinks and levels stay configurable. The wider house standard for long-lived services is structlog; both emit structured records, so choose one per project and stay with it — running both splits the log stream and doubles the configuration surface.
Format: Use structured logging (JSON) in production for queryability.
Levels:
- DEBUG: Low-level tracing (payloads, internal state).
- INFO: Key business events (Job started, Model saved).
- ERROR: Actionable failures (with stack traces).
Context: Include context (Job ID, Model Version) in logs.
Discipline: No bare print in library code — Ruff's T20 rules enforce it.

5. Security

Protect the supply chain and runtime.

Code Scanning: Enable Ruff S (flake8-bandit) rules to detect unsafe patterns (e.g., eval, yaml.load) — this replaces standalone bandit, and runs inside check:lint.
Dependencies: check:vuln runs pip-audit --skip-editable against the resolved environment; Dependabot opens the update pull requests on a weekly schedule.
Secret Scanning: check:leaks runs gitleaks. Scan the staged change in the pre-commit hook (--staged) and the recent history in CI (--log-opts="--max-count=100"); a scheduled workflow rescans the full history weekly, because a secret committed and later removed is invisible to a shallow scan forever.
Filesystem Scanning: check:scan runs trivy --config trivy.yaml fs . — one pass covering vulnerabilities, misconfigurations (Dockerfile, IaC), secrets, and license compliance. Two details matter: pass --config explicitly, or a TRIVY_CONFIG exported in a developer's shell silently overrides the committed policy; and use the fs subcommand, because trivy config only runs the misconfiguration scanner and quietly skips the rest.
Workflow Scanning: check:actions runs actionlint (syntax, shell) and zizmor (workflow security: injection, over-broad permissions, credential persistence).
Secrets: NEVER log secrets. Sanitize outputs.

Self-Correction Checklist

Type Safety: Does mise run check:types pass?
Lint Cleanliness: Does mise run check:lint pass with an explicit select list?
Test Discovery: Does pytest successfully find modules in src/?
Test Speed: Is the MLflow store built once and copied, not migrated per test?
Log Format: Are production logs serializing to JSON, from one logging library?
Security: Do check:lint (Ruff S), check:vuln, check:leaks, check:scan, and check:actions all pass?
Gate: Does mise run all pass end to end?

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Metadatos del archivo

name: mlops-validation
description: Add the validation layers that gate a merge — ty typing, Ruff linting, pytest coverage, structured logging, and the trivy, pip-audit, and gitleaks scans. Use when hardening code quality or wiring the mise run check task.
license: MIT
metadata:
  author: Médéric HURIER (Fmind)
  source: github.com/MLOps-Courses/mlops-coding-skills/tree/main/mlops-validation
  created: 2026-01-25
  updated: 2026-08-10

Ver texto original

---
name: mlops-validation
description: Add the validation layers that gate a merge — ty typing, Ruff linting, pytest coverage, structured logging, and the trivy, pip-audit, and gitleaks scans. Use when hardening code quality or wiring the mise run check task.
license: MIT
metadata:
  author: Médéric HURIER (Fmind)
  source: github.com/MLOps-Courses/mlops-coding-skills/tree/main/mlops-validation
  created: 2026-01-25
  updated: 2026-08-10
---

# MLOps Validation

## Goal

To ensure software quality, reliability, and security through automated validation layers. This skill enforces **Strict Typing** (`ty`), **Unified Linting** (`ruff`), **Comprehensive Testing** (`pytest`), **Structured Logging**, and **Supply-Chain Scanning** (`pip-audit`, `gitleaks`, `trivy`).

## Prerequisites

- **Language**: Python 3.14
- **Manager**: `uv`; **Tasks**: `mise`
- **Context**: Ensuring code quality before merge/deploy.

## Instructions

### 1. The Task Vocabulary

Every check below is a `mise` task, so the same command runs locally, in the git hook, and in CI. Never invoke the underlying tool by hand in a hook or a workflow — the task is the single definition.

| Task            | Tool                                                                     | What it proves                                                        |
| --------------- | ------------------------------------------------------------------------ | --------------------------------------------------------------------- |
| `check:format`  | `dprint`, `validate-pyproject`, `ruff format --check`, `uv lock --check` | Files and manifests are canonical and the lockfile is current.        |
| `check:lint`    | `ruff check`                                                             | No lint violation, including the `S` (security) rules.                |
| `check:types`   | `ty check`                                                               | Type annotations are consistent.                                      |
| `check:vuln`    | `pip-audit`                                                              | No known CVE in the resolved Python dependencies.                     |
| `check:leaks`   | `gitleaks`                                                               | No secret in the staged change or the recent history.                 |
| `check:scan`    | `trivy`                                                                  | No misconfiguration, leaked secret, or forbidden license in the tree. |
| `check:actions` | `actionlint`, `zizmor`                                                   | Workflows are valid and not vulnerable.                               |
| `test`          | `pytest`                                                                 | Behavior is covered and correct.                                      |

`mise run check` runs the `check:*` tasks in parallel; `mise run all` chains `format` -> `check` -> `test` -> `build` and is the only gate anyone needs to remember.

### 2. Static Analysis (Typing & Linting)

Catch errors before they run.

1. **Typing**:
   - **Tool**: `ty` (Astral type checker; pre-1.0, pin a compatible range such as `ty>=0.0.69,<0.1`). The mandated checker — do not use `mypy`.
   - **Rule**: No `Any` (unless absolutely necessary). Fully typed function signatures.
   - **Pragmatism**: `ty` does not yet model every dynamic library (MLflow, pandera, Pydantic). Silence the specific rule categories they trigger in `[tool.ty.rules]`, with a comment saying why — never disable the checker wholesale.
   - **DataFrames**: Use `pandera` schemas to validate DataFrame structures/types.
   - **Classes**: Use `pydantic` for data modeling and runtime validation.
1. **Linting & Formatting**:
   - **Tool**: `ruff` 0.16+ (replaces black, isort, pylint, flake8, bandit).
   - **Rule**: Zero tolerance for linter errors. Use `noqa` sparingly and with justification.
   - **Config**: Centralize in `pyproject.toml`, with an explicit `[tool.ruff.lint] select` list. Ruff 0.16 expanded the _default_ rule set from 59 to 413 rules, so a project that relies on the default set changes behavior on upgrade while an explicit `select` list does not.
   - **Markdown**: Ruff 0.16 also formats Python code blocks inside `.md` files. Expect a one-time reformat of your documentation on the first run, and commit it.

### 3. Testing Strategy

Verify behavior and prevent regressions.

1. **Tool**: `pytest` (9.x).
1. **Structure**: Mirror `src/` in `tests/`.

   ```text
   src/pkg/mod.py -> tests/test_mod.py
   ```

1. **Fixtures**: Use `tests/conftest.py` for shared setup (mock data, temp paths).
1. **Coverage**: Measure with `pytest-cov` and set `--cov-fail-under` to the level the suite actually reaches, so any drop is a visible regression rather than slack under a round number.
1. **Pattern**: Use **Given-When-Then** in comments.

   ```python
   def test_pipeline_execution(input_data):
       # Given: Valid input data
       # When: The pipeline processes the data
       # Then: The output content matches expectations
   ```

1. **MLflow in tests**: Point the tests at a SQLite tracking store, not the deprecated file store — but build it once. Creating a fresh MLflow SQLite database runs the full Alembic migration chain (measured at roughly 7 seconds per database), so a session-scoped fixture should migrate one template database and each test should `shutil.copyfile` it into its own `tmp_path` (roughly 0.07 seconds). Migrating per test turned a 34-second suite into a 339-second one.

### 4. Structured Logging

Enable observability and debugging.

1. **Tool**: `loguru`, configured through a small logging service so sinks and levels stay configurable. The wider house standard for long-lived services is `structlog`; both emit structured records, so choose one per project and stay with it — running both splits the log stream and doubles the configuration surface.
1. **Format**: Use structured logging (JSON) in production for queryability.
1. **Levels**:
   - `DEBUG`: Low-level tracing (payloads, internal state).
   - `INFO`: Key business events (Job started, Model saved).
   - `ERROR`: Actionable failures (with stack traces).
1. **Context**: Include context (Job ID, Model Version) in logs.
1. **Discipline**: No bare `print` in library code — Ruff's `T20` rules enforce it.

### 5. Security

Protect the supply chain and runtime.

1. **Code Scanning**: Enable Ruff `S` (flake8-bandit) rules to detect unsafe patterns (e.g., `eval`, `yaml.load`) — this replaces standalone `bandit`, and runs inside `check:lint`.
1. **Dependencies**: `check:vuln` runs `pip-audit --skip-editable` against the resolved environment; **Dependabot** opens the update pull requests on a weekly schedule.
1. **Secret Scanning**: `check:leaks` runs `gitleaks`. Scan the staged change in the pre-commit hook (`--staged`) and the recent history in CI (`--log-opts="--max-count=100"`); a scheduled workflow rescans the **full** history weekly, because a secret committed and later removed is invisible to a shallow scan forever.
1. **Filesystem Scanning**: `check:scan` runs `trivy --config trivy.yaml fs .` — one pass covering vulnerabilities, misconfigurations (Dockerfile, IaC), secrets, and license compliance. Two details matter: pass `--config` explicitly, or a `TRIVY_CONFIG` exported in a developer's shell silently overrides the committed policy; and use the `fs` subcommand, because `trivy config` only runs the misconfiguration scanner and quietly skips the rest.
1. **Workflow Scanning**: `check:actions` runs `actionlint` (syntax, shell) and `zizmor` (workflow security: injection, over-broad permissions, credential persistence).
1. **Secrets**: **NEVER** log secrets. Sanitize outputs.

## Self-Correction Checklist

- [ ] **Type Safety**: Does `mise run check:types` pass?
- [ ] **Lint Cleanliness**: Does `mise run check:lint` pass with an explicit `select` list?
- [ ] **Test Discovery**: Does `pytest` successfully find modules in `src/`?
- [ ] **Test Speed**: Is the MLflow store built once and copied, not migrated per test?
- [ ] **Log Format**: Are production logs serializing to JSON, from one logging library?
- [ ] **Security**: Do `check:lint` (Ruff `S`), `check:vuln`, `check:leaks`, `check:scan`, and `check:actions` all pass?
- [ ] **Gate**: Does `mise run all` pass end to end?

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Licencia: MIT
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Fuente del skill registrada

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Licencia: MIT

Dependency or permission surface needs review
Permission surface may require sandboxing
Low GitHub adoption signal
Falta aprobación de revisión por IA
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
GitHub adoption: 22 GitHub stars
Stars/forks activity: 22 stars, 4 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution
Review status: AI review approval is missing

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1Lee la fuente y confirma entradas, resultados, dependencias y permisos.
2Pide un plan al agente. Aprueba la configuración y los costes antes de probar en un entorno aislado.
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Consulta dependencias, claves API y costes externos en la fuente. Un repositorio público no implica servicios gratuitos.

Fuente y notas de uso

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Repositorio fuente: MLOps-Courses/mlops-coding-skills
Licencia: MIT
Versión: Unknown
Último push de GitHub: 10 ago 2026
Registro actualizado: 13 sept 2026
Ruta de instrucciones: mlops-validation/SKILL.md @ 4a146e6c4d47

Versión declarada en el registro; consulta las versiones de la fuente.

Calidad

49/100

Requiere revisión

Confianza

55/100

Do not auto-install

Auditoría

67/100

Requiere revisión

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Dependency or permission surface needs review
Permission surface may require sandboxing
Low GitHub adoption signal
Falta aprobación de revisión por IA
Quality score needs review
Permission surface needs review: secrets or environment access, shell or command execution
GitHub adoption: 22 GitHub stars
Stars/forks activity: 22 stars, 4 forks; issue activity unavailable in current metadata
Dependency/runtime risk: command execution surface, credential or environment access
Permission surface: secrets or environment access, shell or command execution
Review status: AI review approval is missing

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    "known_risks": [
      "AI review approval is missing",
      "Low GitHub adoption signal",
      "Quality score needs review",
      "Permission surface needs review: secrets or environment access, shell or command execution",
      "GitHub adoption: 22 GitHub stars",
      "Stars/forks activity: 22 stars, 4 forks; issue activity unavailable in current metadata",
      "Dependency/runtime risk: command execution surface, credential or environment access",
      "Permission surface: secrets or environment access, shell or command execution"
    ]
  },
  "agent_proven": {
    "version": "agent-proven-v1",
    "score": 0,
    "tier": "unproven",
    "label": "Needs first agent run",
    "summary": "No agent outcome reports yet. Use Resolve, run one narrow sandbox task, then report the result.",
    "metrics": {
      "totalOutcomes": 0,
      "successfulOutcomes": 0,
      "failedOutcomes": 0,
      "installAttempts": 0,
      "installSuccessRate": null,
      "successRate": null,
      "recentSuccessRate": null,
      "recentFailureRate": null,
      "riskBlocked": 0,
      "setupRequired": 0,
      "notRelevant": 0,
      "avgOutputQuality": null,
      "avgTimeToUsefulMs": null,
      "productionOutcomes": 0,
      "humanReviewRequired": 0,
      "uniqueAgents": 0,
      "lastOutcomeAt": null
    },
    "signals": [],
    "penalties": [
      "No real agent outcome evidence yet"
    ]
  },
  "audit": {
    "score": 67,
    "risk_level": "needs_review",
    "risk_label": "Needs review",
    "warnings": [
      "Dependency or permission surface needs review",
      "Permission surface may require sandboxing",
      "Low GitHub adoption signal",
      "AI review approval is missing",
      "Quality score needs review",
      "Permission surface needs review: secrets or environment access, shell or command execution",
      "GitHub adoption: 22 GitHub stars",
      "Stars/forks activity: 22 stars, 4 forks; issue activity unavailable in current metadata"
    ]
  },
  "safety_gate": {
    "tier": "blocked",
    "label": "Blocked for auto-install",
    "auto_install_policy": "block",
    "auto_install_allowed": false,
    "human_review_required": true,
    "blocked": true,
    "recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first."
  },
  "quality": {
    "score": 49,
    "label": "Needs review"
  },
  "supply": {
    "track": "Coding and developer agents",
    "scenario": "Coding agents",
    "maintenance": "2mo since push",
    "risk": "Needs review"
  },
  "alternative_skills": [],
  "do_not_use_when": [
    "teams that need a vendor-supported SLA",
    "production agents without a repository review",
    "Low GitHub adoption signal",
    "High-risk permission hints: Shell or command execution, Secrets or environment access",
    "Dependency or permission surface needs review",
    "Permission surface may require sandboxing",
    "AI review approval is missing",
    "Quality score needs review"
  ],
  "agent_contract": {
    "task_input": "Use mlops-validation in an agent workflow",
    "recommended_action": "Do not auto-install. Inspect the source, dependencies, and permission surface first.",
    "install_policy": "block",
    "minimum_review_before_use": [
      "Trust: 63/100 Manual review",
      "Audit: 67/100 Needs review",
      "Safety: 23/100 Avoid automatic install",
      "Review repository, license, install command, and permission surface before production use."
    ],
    "expected_agent_output": {
      "selected_skill": "mlops-courses-mlops-validation (mlops-validation)",
      "install_command": "npx skills add MLOps-Courses/mlops-coding-skills --skill mlops-validation",
      "risk_summary": "Needs review; Blocked for auto-install; Review before production",
      "verification_result": "Report the smallest successful task, files touched, warnings, and any missing setup."
    }
  },
  "outcome_feedback": {
    "endpoint": "https://www.openagentskill.com/api/agent/outcome",
    "method": "POST",
    "requires_resolve_event_id": true,
    "event_id_source": "Use install_receipt.outcome_feedback.event_id or feedback.event_id returned by /api/agent/resolve for the current task.",
    "expected_outcomes": [
      "success",
      "failed",
      "not_relevant",
      "blocked_by_risk",
      "setup_required"
    ],
    "payload_template": {
      "event_id": "<install_receipt.outcome_feedback.event_id or feedback.event_id from /api/agent/resolve>",
      "skill_slug": "mlops-courses-mlops-validation",
      "task": "Use mlops-validation in an agent workflow",
      "agent": "codex",
      "outcome": "success",
      "install_used": true,
      "risk_blocked": false,
      "setup_required": false,
      "task_success": true,
      "output_quality": 4,
      "error_type": null,
      "human_review_required": false,
      "workspace": "sandbox",
      "time_to_useful_ms": 120000,
      "notes": "Report the smallest successful task, setup friction, files touched, and risk notes."
    }
  },
  "endpoints": {
    "web": "https://www.openagentskill.com/skills/mlops-courses-mlops-validation",
    "api": "https://www.openagentskill.com/api/agent/skills/mlops-courses-mlops-validation",
    "audit": "https://www.openagentskill.com/skills/mlops-courses-mlops-validation/audit",
    "eval": "https://www.openagentskill.com/api/agent/evals?slug=mlops-courses-mlops-validation&task=Use%20mlops-validation%20in%20an%20agent%20workflow&max_risk=medium",
    "resolve": "https://www.openagentskill.com/api/agent/resolve?task=Use%20mlops-validation%20in%20an%20agent%20workflow&agent=codex&max_risk=medium",
    "receipt": "https://www.openagentskill.com/api/agent/receipt?task=Use%20mlops-validation%20in%20an%20agent%20workflow&agent=codex&max_risk=medium&format=text",
    "install": "https://www.openagentskill.com/api/skills/mlops-courses-mlops-validation/install",
    "manifest": "https://www.openagentskill.com/api/registry/manifest/mlops-courses-mlops-validation"
  }
}

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Esta ficha se indexó desde fuentes públicas y no está marcada como oficial hasta que se apruebe una reclamación de mantenedor.

Creador: Médéric HURIER (Fmind)
Fuente: MLOps-Courses/mlops-coding-skills
Indexado por: Índice comunitario de OpenAgentSkill

La atribución enlaza al repositorio público o al perfil del creador. Los creadores pueden reclamar la ficha para actualizar las señales de propiedad.

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