All skills
design-pattern-selection
FoundationJIT onlyanalysis-agent/task-agent/review-agent: use when a current variation, lifecycle, protocol, or concurrency force may justify a pattern; skip pattern-name or placement work.
- Group
- Engineering workflow
- Supported roles
- MainAnalysisTaskReview
- Source
- SKILL.md
Use when
Trigger signals that make this skill the right owner
- design pattern selection current force variation lifecycle protocol extension object relationship
- factory builder strategy state command adapter facade proxy decorator observer pubsub mediator repository registry provider singleton pool worker queue pipeline fan-out
- pattern misuse speculative abstraction hidden IO global mutable state teardown cancellation backpressure compatibility invariant
Do not use when
Anti-triggers — as binding as the triggers above
- pattern name appears without a current variation lifecycle protocol concurrency or extension force
- the unresolved decision is placement refactoring language performance or public API shape without a pattern choice
Required inputs
What must be supplied before this skill can decide anything
- current force and reachable variants or consumers
- simpler direct or existing repository alternative
- object lifecycle effect concurrency and contract evidence for the proposed relationship
Output contract
What this skill owes the next role
- pattern decision with current forces, selected or rejected relationship, simpler direct alternative, construction/lifecycle/effect obligations, evidence and proof limits, specialist handoffs, and residual risk
Escalation signals
When this skill must hand the decision back
- A proposed pattern can conceal global state IO teardown overload invariant enforcement or public compatibility
Loaded by
This skill never owns a task. These professionals may pull it in as Layer 3.
Targeted references
Each reference carries its own load condition. None of them enter context by default.
| Reference | Load when | Do not load when | Required by |
|---|---|---|---|
| pattern-evidence-record.mdevidence-pattern | A design-pattern candidate needs current-force repository-fit lifecycle IO concurrency or compatibility evidence | No design pattern is selected or direct local structure already resolves the current force | AnalysisTaskReview |