tegwick
50c68575f1
Assistant: codex Assistant-Model: gpt-6-astra Assistant-Session: 01a0cffe-206f-7323-89d3-b20ca4cf4bf9
39 lines
1.8 KiB
Markdown
39 lines
1.8 KiB
Markdown
---
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title: Islands of Interactivity
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status: draft
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maturity: hypothesis
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families: [projection, execution]
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scales: [L3, L5]
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admission: research-candidate-only
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---
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# Islands of Interactivity
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Context: a document contains a few interactive regions surrounded by readable
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content. Client execution cost competes with interaction readiness and coordination.
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Proposed solution: deliver useful document content, then activate selected regions
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with separately scoped client behavior and an explicit loading policy. Declare what
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works before activation and how regions exchange shared state, if needed.
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Result: the execution surface can shrink, but delayed activation, shared dependencies
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and cross-region state introduce complexity. A region is not a security sandbox or
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proof of fault containment. Loading several runtimes can erase the intended savings.
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A dense application with tightly coupled interactions may benefit from one client
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root instead; measure before claiming faster delivery.
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Evidence: B04 locates Astro's client-island mechanism. Server islands are a separate
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mechanism and are not generalized here. No application benchmark or independent
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full-pattern recurrence is established by this documentation.
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Proposed relations: can complement [Progressive Enhancement](ProgressiveEnhancement.md)
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but does not guarantee a no-script task; [Failure Boundary](FailureBoundary.md)
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requires its own contract.
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Next test: fail one region's script download and delay another; verify document
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reading, pre-activation controls, focus continuity and cross-region consistency.
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Evidence locators: [breadth review](../reviews/PatternBreadthExpansion.md).
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All relations are research proposals; no canonical identity or admitted graph edges.
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The next test is planned, not executed. Known uses of the complete proposed contract
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have not been verified in this investigation.
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