Crate crepuscularity_webext 

crepuscularity-webext — Browser extension capabilities with auto-detection

This crate provides opt-in capability management for browser extensions, inspired by Equilibrium’s .eqp capability system. Extensions declare capabilities in a manifest, and the CLI watches files to auto-detect and suggest missing capabilities.

Example Manifest (manifest.crex)

[extension]
name = "my-extension"
version = "1.0.0"

[capabilities]
content-script = true
storage = true
messaging = true
host-permissions = ["https://example.com/*"]

Re-exports

pub use widgets::build_frame_doc;

pub use widgets::json_to_template;

Modules

extension_assets

Default MV3 UI assets for crepus webext build, embedded relative to this crate.

widgets

Generic widget-rendering utilities for browser extensions.

Structs

ActionSpec

Browser action (toolbar button) specification.

BackgroundSpec

Background service worker specification.

BrowserProgram

A program that interacts with browser APIs.

CapabilitiesSection

Capabilities section in the manifest.

CapabilitySet

A set of capabilities for an extension.

CapabilityUsage

A detected capability usage in source code.

CapabilityWatcher

Watches files for capability changes.

ContentScriptEntry

Content script entry.

ContentScriptSpec

Content script specification for MV3.

ExtensionInfo

Basic extension information.

ExtensionManifest

The extension manifest (.crex file).

ManifestOptions

Browser-ready MV3 manifest options that app authors can configure.

ManifestV3

Full browser Manifest V3 document.

MessagePayload

A message payload for runtime messaging.

WebAccessibleResources

Web accessible resources specification.

Enums

BrowserSource

Source of a browser binding value.

BrowserStatement

A statement that performs a browser API action.

Capability

A browser extension capability (permission).

JsExpr

A JavaScript expression.

ManifestError

Error type for manifest operations.

StorageArea

Browser storage area.

WatchEvent

Events emitted by the capability watcher.

Functions

check_project_capabilities

Check a project for missing capabilities (one-shot, no watching).

scan_crepus_for_capabilities

Scan a .crepus file for browser API usage in expression slots and return detected capabilities.