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feat: enhance sandbox capability negotiation (#158)

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* feat: enhance sandbox capability negotiation

* Update specification/draft/apps.mdx

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* add all csp and permissions to host capabilities + update SEP

* feat: add clipboard-write permission support

Adds clipboardWrite to McpUiResourcePermissions for clipboard access.
Maps to Permission Policy 'clipboard-write' feature.

* rm files added by mistake

* refactor: change McpUiResourcePermissions properties to empty objects

* chore: remove scratch files and redundant cross-env dependency

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Olivier Chafik <ochafik@anthropic.com>
This commit is contained in:
Ido Salomon 2026-01-12 17:10:27 +02:00 • committed by GitHub
commit 9acc52cb96
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1 changed files with 496 additions and 16 deletions
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239
src/generated/schema.json generated
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@ -89,6 +89,79 @@
"type": "object",
"properties": {},
"additionalProperties": false
},
"sandbox": {
"description": "Sandbox configuration applied by the host.",
"type": "object",
"properties": {
"permissions": {
"description": "Permissions granted by the host (camera, microphone, geolocation).",
"type": "object",
"properties": {
"camera": {
"description": "Request camera access (Permission Policy `camera` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"microphone": {
"description": "Request microphone access (Permission Policy `microphone` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"geolocation": {
"description": "Request geolocation access (Permission Policy `geolocation` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"clipboardWrite": {
"description": "Request clipboard write access (Permission Policy `clipboard-write` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
}
},
"additionalProperties": false
},
"csp": {
"description": "CSP domains approved by the host.",
"type": "object",
"properties": {
"connectDomains": {
"description": "Origins for network requests (fetch/XHR/WebSocket).",
"type": "array",
"items": {
"type": "string"
}
},
"resourceDomains": {
"description": "Origins for static resources (scripts, images, styles, fonts).",
"type": "array",
"items": {
"type": "string"
}
},
"frameDomains": {
"description": "Origins for nested iframes (frame-src directive).",
"type": "array",
"items": {
"type": "string"
}
},
"baseUriDomains": {
"description": "Allowed base URIs for the document (base-uri directive).",
"type": "array",
"items": {
"type": "string"
}
}
},
"additionalProperties": false
}
},
"additionalProperties": false
}
},
"additionalProperties": false
@ -2231,6 +2304,79 @@
"type": "object",
"properties": {},
"additionalProperties": false
},
"sandbox": {
"description": "Sandbox configuration applied by the host.",
"type": "object",
"properties": {
"permissions": {
"description": "Permissions granted by the host (camera, microphone, geolocation).",
"type": "object",
"properties": {
"camera": {
"description": "Request camera access (Permission Policy `camera` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"microphone": {
"description": "Request microphone access (Permission Policy `microphone` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"geolocation": {
"description": "Request geolocation access (Permission Policy `geolocation` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"clipboardWrite": {
"description": "Request clipboard write access (Permission Policy `clipboard-write` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
}
},
"additionalProperties": false
},
"csp": {
"description": "CSP domains approved by the host.",
"type": "object",
"properties": {
"connectDomains": {
"description": "Origins for network requests (fetch/XHR/WebSocket).",
"type": "array",
"items": {
"type": "string"
}
},
"resourceDomains": {
"description": "Origins for static resources (scripts, images, styles, fonts).",
"type": "array",
"items": {
"type": "string"
}
},
"frameDomains": {
"description": "Origins for nested iframes (frame-src directive).",
"type": "array",
"items": {
"type": "string"
}
},
"baseUriDomains": {
"description": "Allowed base URIs for the document (base-uri directive).",
"type": "array",
"items": {
"type": "string"
}
}
},
"additionalProperties": false
}
},
"additionalProperties": false
}
},
"additionalProperties": false,
@ -3532,6 +3678,37 @@
},
"additionalProperties": false
},
"permissions": {
"description": "Sandbox permissions requested by the UI.",
"type": "object",
"properties": {
"camera": {
"description": "Request camera access (Permission Policy `camera` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"microphone": {
"description": "Request microphone access (Permission Policy `microphone` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"geolocation": {
"description": "Request geolocation access (Permission Policy `geolocation` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"clipboardWrite": {
"description": "Request clipboard write access (Permission Policy `clipboard-write` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
}
},
"additionalProperties": false
},
"domain": {
"description": "Dedicated origin for widget sandbox.",
"type": "string"
@ -3543,6 +3720,37 @@
},
"additionalProperties": false
},
"McpUiResourcePermissions": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
"properties": {
"camera": {
"description": "Request camera access (Permission Policy `camera` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"microphone": {
"description": "Request microphone access (Permission Policy `microphone` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"geolocation": {
"description": "Request geolocation access (Permission Policy `geolocation` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"clipboardWrite": {
"description": "Request clipboard write access (Permission Policy `clipboard-write` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
}
},
"additionalProperties": false
},
"McpUiResourceTeardownRequest": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object",
@ -3638,6 +3846,37 @@
}
},
"additionalProperties": false
},
"permissions": {
"description": "Sandbox permissions from resource metadata.",
"type": "object",
"properties": {
"camera": {
"description": "Request camera access (Permission Policy `camera` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"microphone": {
"description": "Request microphone access (Permission Policy `microphone` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"geolocation": {
"description": "Request geolocation access (Permission Policy `geolocation` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
},
"clipboardWrite": {
"description": "Request clipboard write access (Permission Policy `clipboard-write` feature).",
"type": "object",
"properties": {},
"additionalProperties": false
}
},
"additionalProperties": false
}
},
"required": ["html"],