ReddRadar
Agent skill
sil-calculator
Safety Integrity Level calculation skill for SIF design and verification per IEC 61511
Install this agent skill to your Project
npx add-skill https://github.com/a5c-ai/babysitter/tree/main/library/specializations/domains/science/chemical-engineering/skills/sil-calculator
Metadata
Additional technical details for this skill
- domain
- science
- category
- Process Safety
- skill id
- CE-SK-015
- specialization
- chemical-engineering
SKILL.md
SIL Calculator Skill
Purpose
The SIL Calculator Skill determines Safety Integrity Levels for Safety Instrumented Functions and verifies SIF designs meet required risk reduction per IEC 61511.
Capabilities
- SIL determination (risk graph, LOPA, risk matrix)
- PFDavg calculations
- Proof test interval optimization
- Common cause failure analysis
- Hardware fault tolerance verification
- Diagnostic coverage assessment
- Systematic capability evaluation
- SIF verification calculations
Usage Guidelines
When to Use
- Determining SIL requirements
- Designing safety instrumented functions
- Verifying SIF performance
- Optimizing proof test intervals
Prerequisites
- HAZOP recommendations available
- Risk criteria defined
- Component failure data available
- Architecture selected
Best Practices
- Use consistent methodology
- Document all assumptions
- Consider common cause failures
- Verify systematic capability
Process Integration
This skill integrates with:
- Safety Instrumented System Design
- HAZOP Study Facilitation
- Pressure Relief System Design
Configuration
sil-calculator:
determination-methods:
- risk-graph
- lopa
- risk-matrix
failure-databases:
- OREDA
- SINTEF
- exida
Output Artifacts
- SIL determination reports
- PFDavg calculations
- SIF specifications
- Verification reports
- Test interval recommendations
Recommended Agent Skills
Expand your agent's capabilities with these related and highly-rated skills.
a5c-ai/babysitter
gsd-tools
Central utility skill for GSD operations. Provides config parsing, slug generation, timestamps, path operations, and orchestrates calls to other specialized skills. Acts as the unified entry point that the original gsd-tools.cjs provided via its lib/ modules (commands, config, core, init).
a5c-ai/babysitter
model-profile-resolution
Resolve model profile (quality/balanced/budget) at orchestration start and map agents to specific models. Enables cost/quality tradeoffs by selecting appropriate AI models for each agent role.
a5c-ai/babysitter
verification-suite
Plan structure validation, phase completeness checks, reference integrity verification, and artifact existence confirmation. Provides the structured verification layer ensuring GSD artifacts are well-formed and complete.
a5c-ai/babysitter
state-management
STATE.md reading, writing, and field-level updates. Provides cross-session state persistence via .planning/STATE.md with structured fields for current task, completed phases, blockers, decisions, and quick tasks.
a5c-ai/babysitter
git-integration
Git commit patterns, formats, and conventions for GSD methodology. Provides atomic commits per task, structured commit messages, planning file commits, branch management, and milestone tag operations.
a5c-ai/babysitter
frontmatter-parsing
YAML frontmatter parsing and manipulation for .planning/ documents. Provides read, write, update, query, and validation operations on frontmatter blocks in GSD markdown artifacts.
Didn't find tool you were looking for?