Robot Actions — Remote Device Control

iOS Safari mock add

ios_safari_mock_add

Add (or update in place, when id matches an existing route) a mock/abort rule for Safari/WKWebView requests on this device. mode "mock" (default) serves the given status/headers/body without the request leaving the device; mode "abort" fails it so the page sees a network error. Routes apply immediately and survive navigation. WEB CONTENT ONLY: this intercepts requests made by browser/WebView pages. Requests made by native app code are NOT intercepted and never will be by this tool. Nothing device-wide is changed and no certificate is installed — the effect is scoped to the page. For requests made by native app code use ios_traffic_mock_add instead.

Input Schema

TableJSON Schema

Name	Required	Description
`id`	No	Route id to update in place; omit to auto-generate a new one
`body`	No	Response body for mode "mock" (text, or base64 when bodyEncoding is "base64")
`mode`	No	"mock" serves a canned response (default); "abort" fails the request
`udid`	Yes	Device id (Android serial or iOS UDID)
`method`	No	Optional HTTP method filter (e.g. "GET"/"POST"); matches any method when omitted
`pageId`	No	Pin routing to a specific page id (from the *_list_pages tool). Omit to follow the active page automatically across navigations and new tabs — recommended.
`status`	No	HTTP status to serve for mode "mock" (default 200)
`delayMs`	No	Latency injected before responding/failing, in ms (clamped to 60s)
`enabled`	No	Whether the route is active (default true) — disabled routes are kept but ignored
`headers`	No	Response headers for mode "mock", as {headerName: value} — e.g. {"content-type": "application/json"}. On iOS a `charset` in content-type is NOT applied to the response: an HTML body with non-ASCII characters must declare it in the document (e.g. <meta charset="utf-8">) or it will be decoded with the default encoding and render as mojibake.
`matchUrl`	Yes	URL pattern to match against the request's full URL
`matchType`	No	How matchUrl is interpreted against the request URL (default "contains")
`bodyEncoding`	No	Encoding of `body` (default "text")

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedAug 18, 2026

changedInput schema / properties / headers / description

Previous value: -"Response headers for mode \"mock\", as {headerName: value} — e.g. {\"content-type\": \"application/json\"}"New value: +"Response headers for mode \"mock\", as {headerName: value} — e.g. {\"content-type\": \"application/json\"}. On iOS a `charset` in content-type is NOT applied to the response: an HTML body with non-ASCII characters must declare it in the document (e.g. <meta charset=\"utf-8\">) or it will be decoded with the default encoding and render as mojibake."

AddedAug 9, 2026

TDQS

A4.7/5.0

Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already cover the safety profile (readOnly false, destructive false, not idempotent), and the description adds genuinely new behavioral context: routes apply immediately and survive navigation, nothing device-wide changes, and no certificate is installed because the effect is page-scoped. These are non-obvious traits an agent must know.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loads the core action, then modes, then the scoping caveat and sibling pointer. Dense but no filler sentences; slightly long, though every clause carries actionable information.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a 13-parameter mutation tool with no output schema, the description covers scope, modes, and sibling routing well. It does not say what the call returns (e.g. the generated route id, which an agent would need for the update-in-place workflow), a minor gap.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so baseline is 3, but the description adds meaning beyond the schema by explaining what mode "mock" actually does (serves given status/headers/body without the request leaving the device) and what mode "abort" produces (page sees a network error). The id-based update-in-place behavior is also clarified narratively.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb+resource (add/update a mock or abort rule for Safari/WKWebView requests), disambiguates update-in-place via `id`, and explicitly distinguishes itself from ios_traffic_mock_add. An agent can route correctly without opening any schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly states the when/when-not: WEB CONTENT ONLY, native app code will never be intercepted, and names the alternative tool (ios_traffic_mock_add) for that case. Also names the conditions selecting mock vs abort modes.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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