Interceptor Skill for Cursor

Interceptor

Use this as the routing skill before loading a surface-specific skill.

Surface Decision

| Task | Skill |

|---|---|

| Page DOM, text, network, SPA state, browser monitor, screenshots of browser content | interceptor-browser |

| Rich browser editors (Docs/Slides/Canva), canvas/WebGL camera viewers, scene-graph reads, page-world request overrides, blob/export capture, or "cooking" a live page with overlays/HUDs | interceptor-browser |

| Native macOS apps, OS dialogs, browser chrome, URL bars, app windows, menu bars | interceptor-macos |

| Electron / Chromium desktop app web contents, such as Slack, VS Code, Notion, or Descript DOM/network/JS | interceptor macos cdp / interceptor macos cdp app via interceptor-macos/references/cdp-app.md |

| Native app runtime internals: live view/object graph, selector calls, rendered text mutation, hooks, MapKit/AppKit/SwiftUI runtime work | interceptor macos runtime via interceptor-macos/references/native-agent.md |

| Open or control a named app such as Brave, Mail, Finder, Signal, or Cursor | interceptor-macos |

| Backgrounded, occluded, minimized, or cross-Space app capture | interceptor-macos |

| Deep web research: investigate a topic across many sources with breadth + verification | interceptor-research |

| Owned physical iPhone, app automation, runner state and device services | interceptor-ios |

| Capabilities added by an installed extension (operator-supplied) | run interceptor extensions list, then load the extension's own skill (interceptor-ext-<name>) |

Core Rules

• Browser commands operate inside the cyan interceptor tab group. Do not use --any-tab unless the user explicitly authorizes acting outside that group.
• Solo browser work in a supported agent shell gets a soft per-session group automatically. For concurrent lanes, set a unique INTERCEPTOR_SESSION_ID or pass a unique --group <label> to each lane. Explicit groups are hard-scoped by default unless --any-tab is authorized. Close named groups with interceptor group close <label> when done; the idle timer is based on tab activity, so metadata polls do not keep a group alive.
• interceptor open <url> and interceptor tab new <url> create background tabs by default. Only open --activate, tab new --activate, tab switch <id>, and window focus <id> intentionally move browser focus.
• The macOS surface is background-first by default. Only interceptor macos app activate <app> and interceptor macos open <app> --activate intentionally move focus.
• If multiple browser profiles are connected, run interceptor contexts and pass --context <id>.
• Safari registers as safari; use interceptor --context safari <verb> for page content and interceptor macos for Safari chrome or native fallbacks.
• Prefer compound commands (open, read, act, inspect) and structured reads before screenshots.
• The zero-CDP browser rule governs the user's real Chrome/Brave/Safari web session. For owned Electron apps, interceptor macos cdp and interceptor macos cdp app are intentional app-control surfaces.
• For native app runtime internals, use interceptor macos runtime after checking interceptor status; public Full installs may require operator-supplied runtime agent dylibs/signing identity before macos runtime enable.
• If the extension behaves stale after a package update, run interceptor reload --context <id>: an unpacked copy picks up the installed files; a Chrome Web Store copy only asks the store for an update and keeps its version until the store publishes the new one. interceptor contexts --verbose shows which copy (store or unpacked) and version each context runs.
• interceptor daemon stop and interceptor skills unadopt are install/maintenance verbs. The daemon is shared by every agent on the machine — never stop it during normal automation; the next browser command respawns it, but every connected agent's in-flight work is dropped.

Load A Surface Skill

• Load interceptor-browser for browser page content, network, tabs, scene graphs, and browser screenshots.
• Load interceptor-macos for native apps, browser chrome, OS dialogs, window capture, AX trees, Apple Events, Electron app CDP/app attach, and in-process native agent control.
• Load interceptor-ios for an owned, unlocked, Developer-Mode iPhone. Disconnected unlock cannot bootstrap its runner.
• Load interceptor-research for deep web research — investigating a topic across many sources with a planner loop, an on-disk source ledger, and adversarial verification (methodology layered on the browser surface). Pull the playbook any time with interceptor research.