frontend-change-builder

ProfessionalRuntime top level

Use task-agent for bounded frontend component or browser changes involving interaction, accessibility, API failures, security, or regression proof. Skip backend-only work and design exploration without implementation.

Group: Implementation owners
Routing mode: automatic
Supported roles: MainAnalysisTaskReview
Source: SKILL.md

Use when

Trigger signals that make this skill the right owner

frontend component change
browser behavior change

Do not use when

Anti-triggers — as binding as the triggers above

backend only
design exploration without implementation

Required inputs

What must be supplied before this skill can decide anything

experience evidence
interaction-state and API failure contracts
design-system and accessibility constraints

Output contract

What this skill owes the next role

changed interaction and state boundaries
accessibility and failure-state evidence
post-edit validation result
residual UX risk

Escalation signals

When this skill must hand the decision back

scope, authority, or material risk exceeds the selected task contract

Related expertise

13 Layer 3 candidates may be loaded behind this skill. A single task loads at most three, and only when the current evidence justifies them.

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
checklist.mddecision-checklist	A bounded L2 review needs a compact frontend inventory for component, route, form, state, API, accessibility, security, performance, or tests	The inline quality gate is enough or deeper gate/evidence mapping is required	Task
component-placement-and-reuse-gates.mdtargeted	Component, shared UI, hook, store, client, or reuse ownership remains open	Owner, current consumers, and reuse decision are fixed	Task
state-ownership-and-api-failure-gates.mdtargeted	State ownership or API, failure, or retry contract remains open	Current contract fixes states, failures, recovery, and retry	Task
accessibility-closure-gates.mdtargeted	Frontend accessibility closure decision remains open	Accepted accessibility contract already fixes the implementation	Task
frontend-security-closure-gates.mdtargeted	HTML, content, token, script, or browser-storage security decision remains open	No frontend security boundary changes	Task
frontend-quality-and-validation-evidence.mdevidence-pattern	State, testability, reliability, performance, or quality claim needs proof	No changed frontend quality claim awaits validation	Task
same-pattern-scan-and-handoff-evidence.mdevidence-pattern	Same-pattern, tool-boundary, or final-handoff evidence is required	No scan or closure claim remains	Task
index.mdindex	competing frontend change builder references require dependency, conflict, or output-fragment selection	the frontend change builder root or a task-named reference already resolves selection	Task
solution-optimality.mdtargeted	A rendering, state, data-fetching, asset, lifecycle, or interaction-path choice may materially change user experience or browser resource use	Copy/style changes do not affect runtime behavior, or current design-system/repository evidence already fixes the bounded implementation	Task
visual-quality-and-redesign.mdtargeted	The user explicitly requests visual polish or redesign, or hierarchy, typography, spacing, density, or composition is an acceptance target	The frontend task is ordinary behavior work without a visual-quality acceptance target, or reference fidelity alone defines the visual goal	Task
visual-reference-reconstruction.mdtargeted	Screenshot, mockup, or reference-image implementation requires visual fidelity or matching the supplied reference	No visual reference is supplied, or visual polish and redesign do not require matching one	Task