Add the provider documentation set and finish the decomposition

.cargo/config.toml

@@ -26,10 +26,10 @@ test_details = "test --target aarch64-apple-darwin"
 # native crate needs no change here. Axum (native), Cloudflare
 # (wasm32-unknown-unknown), Spin, the CLI (native), and integration-tests
 # (native) are simply not listed.
-build-fastly = "build -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-js -p trusted-server-openrtb --target wasm32-wasip1"
-check-fastly = "check -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-js -p trusted-server-openrtb --target wasm32-wasip1"
-clippy-fastly = "clippy -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-js -p trusted-server-openrtb --all-targets --all-features --target wasm32-wasip1 -- -D warnings"
-test-fastly = "test -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-js -p trusted-server-openrtb --target wasm32-wasip1"
+build-fastly = "build -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-device-fastly -p trusted-server-geo-fastly -p trusted-server-js -p trusted-server-openrtb --target wasm32-wasip1"
+check-fastly = "check -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-device-fastly -p trusted-server-geo-fastly -p trusted-server-js -p trusted-server-openrtb --target wasm32-wasip1"
+clippy-fastly = "clippy -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-device-fastly -p trusted-server-geo-fastly -p trusted-server-js -p trusted-server-openrtb --all-targets --all-features --target wasm32-wasip1 -- -D warnings"
+test-fastly = "test -p trusted-server-core -p trusted-server-adapter-fastly -p trusted-server-device-fastly -p trusted-server-geo-fastly -p trusted-server-js -p trusted-server-openrtb --target wasm32-wasip1"
 
 # --- Axum adapter (native dev server) ---
 build-axum = "build -p trusted-server-adapter-axum"

.github/workflows/inspector.yml

@@ -0,0 +1,26 @@
+name: "Permissions Inspector"
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  build-inspector-wasm:
+    name: build inspector wasm
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Retrieve Rust version
+        id: rust-version
+        run: echo "rust-version=$(grep -oP 'channel = "\K[^"]+' rust-toolchain.toml)" >> "$GITHUB_OUTPUT"
+      - name: Set up Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: ${{ steps.rust-version.outputs.rust-version }}
+          target: wasm32-unknown-unknown
+      - name: Build the inspector engine
+        run: ./scripts/build-inspector-wasm.sh

.github/workflows/test.yml

@@ -65,8 +65,12 @@ jobs:
         run: BID_DELAY=3 ./scripts/template-cache-local-test.sh inline
 
   test-axum:
-    name: cargo test (axum native)
-    runs-on: ubuntu-latest
+    name: cargo test (axum native, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
     steps:
       - uses: actions/checkout@v4
 
@@ -103,12 +107,25 @@ jobs:
         run: |
           cargo test --package trusted-server-openrtb-codegen --target "$(rustc -vV | sed -n 's/host: //p')"
 
+      # The core library's unit tests otherwise run only on the WebAssembly
+      # targets, which build with panic=abort, so their harness stops at the
+      # first failing test and reports every later one as never run. A run that
+      # looks like a single failure can hide many more. This native run reports
+      # them all at once, which is what makes a red build readable.
+      - name: Run host-target core library tests
+        run: |
+          cargo test --package trusted-server-core --target "$(rustc -vV | sed -n 's/host: //p')"
+
       - name: Verify Fastly WASM release build
         run: cargo build --package trusted-server-adapter-fastly --release --target wasm32-wasip1
 
   test-cloudflare:
-    name: cargo check (cloudflare native + wasm32-unknown-unknown)
-    runs-on: ubuntu-latest
+    name: cargo check (cloudflare native + wasm32-unknown-unknown, ${{ matrix.os }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
     steps:
       - uses: actions/checkout@v4
 

.gitignore

@@ -16,6 +16,9 @@
 /spin
 /spin.sig
 
+# logs
+*.log
+
 # EdgeZero local KV store (created by edgezero-adapter-axum framework)
 .edgezero/
 /dist/prebid/

CLAUDE.md

@@ -20,6 +20,10 @@ crates/
   trusted-server-adapter-cloudflare/    # Cloudflare Workers entry point (wasm32-unknown-unknown binary)
   trusted-server-adapter-spin/          # Fermyon Spin entry point (wasm32-wasip1 component)
   trusted-server-cli/                   # Host-target `ts` operator CLI
+  device/
+    fastly/                             # trusted-server-device-fastly (opt-in TLS/H2 device provider)
+  edgecookie/                           # vendor Edge Cookie provider crates (built-in HMAC provider is in core)
+  geo/                                  # vendor geo provider crates (host geo is injected by the adapter)
   trusted-server-js/                    # TypeScript/JS build — per-integration IIFE bundles
     lib/         # TS source, Vitest tests, esbuild pipeline
 ```
@@ -58,7 +62,9 @@ fastly compute serve
 # Deploy to Fastly
 fastly compute publish
 
-# Run Axum dev server (native — no Viceroy)
+# Run Axum dev server (native — no Viceroy). Settings load at runtime from the
+# platform config store on every adapter; publish an operator config with
+# `ts config push` (see trusted-server.example.toml for the template).
 cargo run -p trusted-server-adapter-axum
 
 # Test Axum adapter only
@@ -142,6 +148,20 @@ cd crates/trusted-server-js/lib && node build-all.mjs
 cargo install viceroy --version 0.17.0 --locked --force
 ```
 
+### Windows (use WSL for the Linux-only tests)
+
+The Rust adapter tests run natively on Windows through the cargo aliases
+(`cargo test-fastly` via Viceroy, `cargo test-axum`, `cargo test-cloudflare`),
+and CI runs these on both `ubuntu-latest` and `windows-latest`.
+
+The Docker-based integration suite (`scripts/integration-tests.sh`) and the
+Cloudflare worker build (`crates/trusted-server-adapter-cloudflare/build.sh`,
+which uses `worker-build` + `wrangler dev`) are Linux tools. On Windows run them
+inside WSL (Ubuntu) with Docker Desktop's WSL integration enabled. Provision the
+WSL distro with the same toolchain as `.tool-versions` (rustup + the
+`wasm32-wasip1` / `wasm32-unknown-unknown` targets, Node, Viceroy, wrangler), then
+run the scripts from a clone on the WSL native filesystem for fast builds.
+
 ---
 
 ## Coding Conventions
@@ -269,12 +289,48 @@ impl core::error::Error for MyError {}
 
 ## Other guidelines
 
+- Use US English spelling everywhere: code, identifiers, comments,
+  documentation, tests, commit messages, and configuration. For example, write
+  `color`, `behavior`, and `optimize`, not `colour`, `behaviour`, or `optimise`.
+  Where a term comes from an external source (for example the IAB TCF purpose
+  names), match that source's spelling even when it is not US English.
 - Use only example or fictional information in comments, tests, docs, examples,
   and similar non-runtime materials. (eg. for urls use: example.com domains only)
 - Do not write or commit real domains, customer names, credentials,
   configuration values, or other potentially sensitive real-world information in
   comments, tests, docs, or examples.
 
+### Permission model terminology
+
+Permissions are the primitive. A provider declares the permissions it requires
+(`required_permissions`) and the system decides whether each is _set_. Consent
+is only one of many ways a permission may be established. Country or
+jurisdiction rules (a `Granted` group baseline), legitimate interest, or
+configuration can set a permission with no consent at all.
+
+- A provider that needs nothing **requires no permission**. Never write that it
+  "runs without any consent".
+- A gated provider **runs once its required permissions are set**, by whatever
+  method.
+
+**Evidence is not rationed, use is.** Every provider and every integration sees
+all the evidence available for a request, including host signals such as the TLS
+JA4 and HTTP/2 signals. The core never decides which vendor may see what,
+because withholding a signal from one vendor and not another discriminates
+between them, and the core stays neutral. What a vendor may *do* with the
+evidence is governed by the permissions it declares and the system sets. Access
+is universal, use is gated.
+
+The practical consequence: never "fix" a vendor's access to a signal by hiding
+the signal. If a use needs controlling, express it as a permission. A change
+that removes evidence from a provider's reach is working against the
+architecture, not protecting it.
+
+- Reserve "consent" for the consent subsystem (`consent/`, `ConsentContext`,
+  GDPR and TCF strings) where it genuinely means a consent signal. In the
+  permission layer prefer "permission", "set" / "unset", and "signal" (consent
+  is one kind of signal, alongside privacy and opt-out signals).
+
 ---
 
 ## Git Commit Conventions
@@ -291,6 +347,41 @@ Bad: `"fix: added feature flags"`
 
 ---
 
+## Provider Architecture
+
+Each vendor-differentiated capability is pluggable behind its own trait, so a
+deployment selects an implementation and the core stays neutral:
+
+| Capability            | Trait                                    | Selector            | Built-in (core)                         | Vendor / host crates         |
+| --------------------- | ---------------------------------------- | ------------------- | --------------------------------------- | ---------------------------- |
+| Edge Cookie identity  | `EdgeCookieProvider` (`ec/provider.rs`)  | `[ec] provider`     | HMAC, client-fixed (opt-in, no default) | `crates/edgecookie/<vendor>` |
+| Device detection      | `DeviceProvider` (`ec/device.rs`)        | `[device] provider` | User-Agent only (default)               | `crates/device/<vendor>`     |
+| Geo / IP intelligence | `PlatformGeo` (`platform/traits.rs`)     | `[geo] provider`    | Disabled, no location (default)         | `crates/geo/<vendor>`        |
+
+Principles for adding or changing a provider:
+
+- **Core stays neutral.** The trait and the host-neutral default live in
+  `trusted-server-core`. Host-specific and vendor implementations live in their
+  own crates and are injected by the adapter (for example `build_device_provider`
+  and `build_geo_provider`), so core never depends on a host SDK or a vendor, and
+  the default request path makes no host-specific calls.
+- **Providers read request evidence, not a fixed parameter set.** A provider must
+  be able to see everything about the request it needs (User-Agent, headers, and
+  host signals such as the TLS JA4 and HTTP/2 signals) through an evidence
+  abstraction rather than a hard-coded struct of fields. Host signals come from
+  the host (the Fastly SDK) and are opt-in, so a neutral provider triggers no
+  host signal calls.
+- **Providers are separated by capability but composed per request, and one may
+  need another's output.** Geo resolves the country and region the permission
+  model uses, and the permission model gates whether the Edge Cookie provider
+  runs. Device signals gate Edge Cookie writes (the browser / bot gate). When
+  multiple vendor providers share a backend (for example a vendor's Edge Cookie,
+  geo, and device provider on one cloud pipeline) they share a single call per
+  request rather than calling independently. Give a provider the inputs and
+  upstream results it needs explicitly, rather than having it reach into globals.
+
+---
+
 ## Integration System
 
 Integrations register in Rust via:
@@ -324,7 +415,7 @@ IntegrationRegistration::builder(ID)
 | --------------------- | ---------------------------------------------------------- |
 | `edgezero.toml`                 | EdgeZero app/platform manifest and logical stores               |
 | `fastly.toml`                   | Fastly service configuration and build settings                 |
-| `trusted-server.example.toml`   | Source-controlled Trusted Server app-config template            |
+| `trusted-server.example.toml`   | Source-controlled app-config template (includes the `[ec]` / `[geo]` / `[device]` provider selectors) |
 | `trusted-server.toml`           | Operator-owned app config; gitignored; `ts config push` publishes it as an EdgeZero blob envelope |
 | `rust-toolchain.toml`           | Pins Rust version to 1.95.0                                     |
 | `.env.dev`                      | Local development environment variables                         |

Cargo.toml

@@ -1,6 +1,8 @@
 [workspace]
 resolver = "2"
 members = [
+    "crates/device/fastly",
+    "crates/geo/fastly",
     "crates/trusted-server-adapter-axum",
     "crates/trusted-server-adapter-cloudflare",
     "crates/trusted-server-adapter-fastly",
@@ -95,6 +97,7 @@ rustls-pemfile = "2"
 scraper = "0.24.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0.149"
+serde_yaml_ng = "0.10"
 sha2 = "0.10.9"
 simple_logger = "5"
 spin-sdk = { version = "~6.0", default-features = false, features = ["http", "key-value", "variables"] }
@@ -109,6 +112,8 @@ toml = "1.1"
 toml_edit = "0.23.10"
 tower = "0.4"
 trusted-server-core = { path = "crates/trusted-server-core" }
+trusted-server-device-fastly = { path = "crates/device/fastly" }
+trusted-server-geo-fastly = { path = "crates/geo/fastly" }
 trusted-server-js = { path = "crates/trusted-server-js" }
 trusted-server-openrtb = { path = "crates/trusted-server-openrtb" }
 url = "2.5.8"