ltmoerdani · ltmoerdani · Aug 11, 2026 · Aug 10, 2026 · Aug 10, 2026 · Aug 10, 2026
diff --git a/.gitignore b/.gitignore
@@ -4,3 +4,4 @@ out/
 .DS_Store
 scripts/validate-models.mjs
 scripts/validate-models.mjs.map
+tmp/
diff --git a/.markdownlint-cli2.jsonc b/.markdownlint-cli2.jsonc
@@ -0,0 +1,12 @@
+{
+  "config": {
+    "MD013": false,
+    "MD024": {
+      "siblings_only": true,
+    },
+    "MD033": false,
+    "MD041": false,
+    "MD060": false,
+  },
+  "gitignore": true,
+}
diff --git a/.markdownlint.json b/.markdownlint.json
diff --git a/.vscodeignore b/.vscodeignore
@@ -1,7 +1,7 @@
 .gitignore
 .github/**
 .husky/**
-.markdownlint.json
+.markdownlint-cli2.jsonc
 .prettierrc.json
 .vscode/**
 .vscode-test/**
@@ -23,3 +23,4 @@ src/**
 tsconfig.json
 package-lock.json
 media/opencodego.svg
+tmp/**
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to the **OpenCode Go BYOK Provider** extension are documente
 
 ## [Unreleased]
 
+### Added
+
+- **`[VS Code]` Remove OpenCode Go / OpenCode Zen from Language Models.** Providers can now be removed from the Language Models list and every model picker like in GitHub Copilot's Manage Language Models: new `opencodego.enabled` / `opencodezen.enabled` settings (with matching `when` clauses on the vendor contributions) skip provider registration, plus `OpenCode Go/Zen: Remove/Re-add Provider in Language Models` commands and a **Remove from Language Models** action in the Manage Provider QuickPick. API keys and BYOK group settings are kept so re-enabling restores the provider unchanged. A window reload is required after toggling.
+- **`[Agents]` OpenCode Go/Zen in the VS Code Agents window (#122).** VS Code ≥1.129 runs the Agents window in a separate agent host process and keeps the two mechanisms this feature depends on off by default: the experimental BYOK model bridge (`chat.agentHost.byokModels.enabled`) that mirrors extension BYOK models into agent-host sessions, and `extensions.supportAgentsWindow`, without which code extensions are disabled in the Agents window process entirely — so OpenCode Go/Zen were missing from both the Agents window model picker and its "+ Add Models" vendor list. The extension now auto-enables both settings on activation (gated by the new `opencodego.autoEnableAgentsWindow` setting, default `true`, merging with any existing user values), records what it flipped, and offers a reload button the first time. When the user disables `opencodego.agentsWindow` afterwards, only the settings the extension itself enabled are reverted. The legacy agent-host providers (`targetChatSessionType: "copilotcli"`) remain registered for VS Code 1.125–1.128, where the bridge does not exist.
+
 ### Fixed
 
 - **`[VS Code]` Provider context menu unresponsive; "+ Add Models" dead; leftover groups undeletable (#121).** The `languageModelChatProviders` contributions declared both `managementCommand` and a `configuration` schema. VS Code's native BYOK flow (`configureLanguageModelsProviderGroup`) short-circuits on `managementCommand` — it re-resolves models and returns without prompting for a group name or API key — so a BYOK group could never be created through "+ Add Models", and every built-in context-menu action (Rename Group, Update API Key, Delete, Open in Language Models (JSON)) throws "group not found", failing silently. Dropped `managementCommand` from the `opencodego`, `opencodezen`, and agent-variant contributions; "+ Add Models" now runs the native prompt flow, the context-menu actions work against the created group, and leftover groups (e.g. created by per-model configuration) can finally be deleted. The extension's own commands (`OpenCode Go: Manage Provider`, `Set API Key`, etc.) remain available in the Command Palette and keep working as a legacy fallback.

diff --git a/README.md b/README.md
@@ -39,7 +39,7 @@
 | 📊 **Live usage tracking**       | Status bar shows Go subscription burn-rate across 5h / weekly / monthly tiers                                                                                                                                                                                           |
 | 🔌 **Dual providers**            | OpenCode **Go** ($10/mo subscription) + OpenCode **Zen** (free + paid models) — run both at once, switch instantly                                                                                                                                                      |
 | 🎯 **Smart routing**             | Each model family auto-routes to its native transport (`/responses`, `/messages`, `streamGenerateContent`, `/chat/completions`)                                                                                                                                         |
-| 🖼️ **Vision + PDF + Audio**      | Multimodal models pass through image, PDF, audio, and video inputs. Oversized images auto-resize to 2000×2000 / 5MB to match the gateway contract.                                                                                                                       |
+| 🖼️ **Vision + PDF + Audio**      | Multimodal models pass through image, PDF, audio, and video inputs. Oversized images auto-resize to 2000×2000 / 5MB to match the gateway contract.                                                                                                                      |
 | 📐 **Context-size picker**       | Kimi K3 and other tiered-context models expose `256K` vs full-window selection in the per-model configuration, with the cheaper tier selected by default.                                                                                                               |
 | 🔒 **Your key, your control**    | API key stored in VS Code SecretStorage — never leaves your machine                                                                                                                                                                                                     |
 
@@ -270,43 +270,58 @@ Delete Active Profile` help you manage your profiles. The label you give
 
 ### 🪟 Agents Window (Copilot CLI) Support
 
-OpenCode models appear in the VS Code **Agents window** model picker when starting a Copilot CLI / Background agent session — not just the regular Chat view. Two sets of models are available:
+OpenCode models appear in the VS Code **Agents window** model picker when starting a Copilot CLI / Background agent session — not just the regular Chat view:
 
-| Provider                                 | Appears under | Notes                                                                                                                                                        |
-| ---------------------------------------- | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-| `opencodego` / `opencodezen`             | **Local**     | Normal models, no `targetChatSessionType`. From VS Code ≥1.126 they appear naturally in the Local section (once the extension loads in the sessions window). |
-| `opencodego-agent` / `opencodezen-agent` | **Copilot**   | Agent variants with `targetChatSessionType: "copilotcli"`. Picked up by `CopilotChatSessionsProvider` for agent sessions.                                    |
+| Provider                                 | Appears under | Notes                                                                                                                                             |
+| ---------------------------------------- | ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- |
+| `opencodego` / `opencodezen`             | **Local**     | Normal models, no `targetChatSessionType`. On VS Code 1.129+ they reach agent-host sessions through VS Code's BYOK model bridge.                  |
+| `opencodego-agent` / `opencodezen-agent` | **Copilot**   | Agent variants with `targetChatSessionType: "copilotcli"`. Picked up by `CopilotChatSessionsProvider` for legacy agent sessions (VS Code ≤1.128). |
 
 **How it works:**
 
-| Setting                                   | Default | What it controls                                        |
-| ----------------------------------------- | ------- | ------------------------------------------------------- |
-| `opencodego.agentsWindow`                 | `true`  | Registers agent-host providers at runtime               |
-| `opencodego.showAgentModelsInManagePanel` | `false` | Shows agent vendors in the Manage Language Models panel |
+VS Code ≥1.129 runs the Agents window in a separate agent host process and keeps two knobs **off by default** that this extension depends on:
 
-**Setup:**
+1. `chat.agentHost.byokModels.enabled` (experimental) — the BYOK language-model bridge that mirrors extension-provided BYOK models into agent-host sessions.
+2. `extensions.supportAgentsWindow` — without it, code extensions are **disabled in the Agents window process**, so OpenCode Go/Zen don't appear in the Agents window picker nor in its **+ Add Models** list.
 
-1. Agent models are enabled by default (`agentsWindow: true`). No changes needed for basic usage.
-2. Add this to your VS Code `settings.json` to enable the extension in the Agents window process:
+The extension auto-enables both when `agentsWindow` is on:
 
-   ```json
-   "extensions.supportAgentsWindow": {
-     "ltmoerdani.opencode-copilot-chat": true
-   }
-   ```
+| Setting                                   | Default | What it controls                                                                                  |
+| ----------------------------------------- | ------- | ------------------------------------------------------------------------------------------------- |
+| `opencodego.agentsWindow`                 | `true`  | Master switch for Agents window support                                                           |
+| `opencodego.autoEnableAgentsWindow`       | `true`  | Auto-manage the two VS Code core settings above (and revert them when `agentsWindow` is disabled) |
+| `opencodego.showAgentModelsInManagePanel` | `false` | Shows agent vendors in the Manage Language Models panel                                           |
 
-3. Reload the window (`Developer: Reload Window`).
-4. Open the **Agents window** → start a new session → select **Copilot CLI** as the agent type.
-5. Open the model picker — OpenCode models appear under **Local** (normal models) and **Copilot** (agent-host variants).
+**Setup:**
 
-Normal OpenCode models (`opencodego`, `opencodezen`) appear in the **Local** section of the Agents window picker from VS Code ≥1.126 onwards. On ≤1.125 they may require the `supportAgentsWindow` setting. Agent-host variants (`opencodego-agent`, `opencodezen-agent`) appear under **Copilot** because they carry `targetChatSessionType: "copilotcli"` and are matched by `CopilotChatSessionsProvider`.
+1. Agent models are enabled by default (`agentsWindow: true`). The extension auto-enables the required VS Code settings on first activation and offers a **Reload Now** button — a window reload is required for them to take effect.
+2. Reload the window (`Developer: Reload Window`) if you haven't been prompted.
+3. Open the **Agents window** → start a new session → select **Copilot CLI** as the agent type.
+4. Open the model picker — OpenCode models appear under their provider; the **+ Add Models** list in the Agents window's Language Models view now includes **OpenCode Go** and **OpenCode Zen**.
 
 To manage agent API keys separately or see agent vendors in the Manage panel, enable:
 
 ```json
 "opencodego.showAgentModelsInManagePanel": true
 ```
 
+#### ❌ Removing a provider from Language Models
+
+Like deleting a provider in GitHub Copilot's Manage Language Models, you can
+remove **OpenCode Go** or **OpenCode Zen** from the Language Models list and
+every model picker:
+
+- **Command Palette** — `OpenCode Go: Remove/Re-add Provider in Language
+Models` (same for Zen), or use **Manage Provider → Remove from Language
+  Models**.
+- **Settings** — set `opencodego.enabled` / `opencodezen.enabled` to `false`.
+
+The provider's vendor row and models disappear from the Manage Language
+Models view, the `+ Add Models` list, the Chat picker, and the Agents window.
+Your API key and BYOK group settings are kept, so re-enabling (or the
+`Re-add to Language Models` action) restores everything. A window reload is
+required after toggling.
+
 ### 🛠️ Smart Routing & Reliability
 
 - **Native endpoint routing** per family (see [Models](#-models) table)

diff --git a/eslint.config.mjs b/eslint.config.mjs
@@ -1,14 +1,11 @@
-import { readFileSync } from "node:fs";
 import tseslint from "typescript-eslint";
-
-const gitignore = readFileSync(new URL(".gitignore", import.meta.url), "utf8")
-  .split(/\r?\n/)
-  .map((line) => line.trim())
-  .filter((line) => line && !line.startsWith("#") && !line.startsWith("!"));
+import { readGitignorePatterns } from "./scripts/gitignore-patterns.mjs";
 
 export default tseslint.config(
   {
-    ignores: gitignore,
+    // Ignore everything `.gitignore` ignores (tmp/, out/, generated scripts,
+    // …) so linting stays in sync with the repo's ignore rules at runtime.
+    ignores: readGitignorePatterns(),
   },
   ...tseslint.configs.recommended,
   {

diff --git a/package.json b/package.json
@@ -70,6 +70,10 @@
         "command": "opencodego.setApiKey",
         "title": "OpenCode Go: Set API Key"
       },
+      {
+        "command": "opencodego.toggleProvider",
+        "title": "OpenCode Go: Remove/Re-add Provider in Language Models"
+      },
       {
         "command": "opencodego.refreshModels",
         "title": "OpenCode Go: Refresh Models"
@@ -90,6 +94,10 @@
         "command": "opencodezen.manage",
         "title": "OpenCode Zen: Manage Provider"
       },
+      {
+        "command": "opencodezen.toggleProvider",
+        "title": "OpenCode Zen: Remove/Re-add Provider in Language Models"
+      },
       {
         "command": "opencodezen.refreshModels",
         "title": "OpenCode Zen: Refresh Models"
@@ -186,10 +194,25 @@
           "default": true,
           "description": "When enabled, only free OpenCode Zen models are shown in the Copilot model selector. Disable to include paid Zen models as well."
         },
+        "opencodego.enabled": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "Register the OpenCode Go provider. Set to `false` to remove OpenCode Go from the Language Models list and all model pickers (like deleting the provider in GitHub Copilot's Manage Language Models). Models you previously configured stay in your language-models config so they come back if you re-enable. Requires a window reload to take effect."
+        },
+        "opencodezen.enabled": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "Register the OpenCode Zen provider. Set to `false` to remove OpenCode Zen from the Language Models list and all model pickers (like deleting the provider in GitHub Copilot's Manage Language Models). Models you previously configured stay in your language-models config so they come back if you re-enable. Requires a window reload to take effect."
+        },
         "opencodego.agentsWindow": {
           "type": "boolean",
           "default": true,
-          "markdownDescription": "Register separate agent-host providers for the Copilot Agents window. Disable to hide the Agents section entirely. Requires a window reload to take effect."
+          "markdownDescription": "Enable OpenCode models in the VS Code Agents window. On VS Code 1.129+ this enables VS Code's BYOK model bridge (`chat.agentHost.byokModels.enabled`) so OpenCode Go/Zen models run in agent-host sessions; on all versions it also opts the extension in to run in the Agents window process (`extensions.supportAgentsWindow`) so OpenCode Go/Zen appear in the Agents window's '+ Add Models' list. Both core settings are auto-managed (see `#opencodego.autoEnableAgentsWindow#`). Disable to hide the Agents section entirely and revert the auto-managed settings. Requires a window reload to take effect."
+        },
+        "opencodego.autoEnableAgentsWindow": {
+          "type": "boolean",
+          "default": true,
+          "markdownDescription": "When `#opencodego.agentsWindow#` is on, automatically enable the VS Code core settings the Agents window support depends on: `chat.agentHost.byokModels.enabled` (BYOK model bridge, experimental, off by default) and `extensions.supportAgentsWindow: { \"ltmoerdani.opencode-copilot-chat\": true }` (without this the extension is disabled in the Agents window process and its providers, including the '+ Add Models' vendors, are missing). The extension records the values it flips and reverts them when `agentsWindow` is disabled. A window reload is required after the first auto-enable. Disable to manage those settings manually."
         },
         "opencodego.showAgentModelsInManagePanel": {
           "type": "boolean",
@@ -285,6 +308,7 @@
       {
         "vendor": "opencodego",
         "displayName": "OpenCode Go",
+        "when": "config.opencodego.enabled",
         "configuration": {
           "type": "object",
           "required": [
@@ -303,6 +327,7 @@
       {
         "vendor": "opencodezen",
         "displayName": "OpenCode Zen",
+        "when": "config.opencodezen.enabled",
         "configuration": {
           "type": "object",
           "required": [
@@ -334,10 +359,10 @@
     "lint": "npm run lint:js && npm run lint:md",
     "lint:js": "eslint .",
     "lint:fix": "eslint . --fix",
-    "lint:md": "markdownlint-cli2 --config .markdownlint.json \"**/*.md\" \"#node_modules\" \"#docs/**\"",
-    "lint:md:all": "markdownlint-cli2 --config .markdownlint.json \"**/*.md\" \"#node_modules\"",
-    "format": "npx prettier --write .",
-    "format:check": "npx prettier --check .",
+    "lint:md": "markdownlint-cli2 --config .markdownlint-cli2.jsonc \"**/*.md\" \"#docs/**\"",
+    "lint:md:all": "markdownlint-cli2 --config .markdownlint-cli2.jsonc \"**/*.md\"",
+    "format": "npx prettier --write . --ignore-path .gitignore",
+    "format:check": "npx prettier --check . --ignore-path .gitignore",
     "clean": "node -e \"require('node:fs').rmSync('out', { recursive: true, force: true })\"",
     "compile": "npm run clean && tsc -p ./",
     "test": "npm run compile && node scripts/run-unit-tests.mjs",

diff --git a/scripts/gitignore-patterns.mjs b/scripts/gitignore-patterns.mjs
@@ -0,0 +1,31 @@
+import { readFileSync } from "node:fs";
+
+/**
+ * Read `.gitignore` and return its patterns as an array suitable for tools
+ * that accept gitignore-style patterns (ESLint flat config `ignores`).
+ *
+ * This is the single source of truth for "which files are temporary /
+ * generated / excluded", so every linter and formatter that supports
+ * gitignore-style patterns should derive its ignores from here (or point
+ * straight at `.gitignore` itself) instead of maintaining a parallel,
+ * drifting ignore list:
+ *
+ * - ESLint: `ignores: readGitignorePatterns()` (this module).
+ * - Prettier: `--ignore-path .gitignore` (native gitignore parsing).
+ * - markdownlint-cli2: `gitignore: true` in `.markdownlint-cli2.jsonc`
+ *   (native gitignore parsing, including nested `.gitignore` files).
+ *
+ * CONTRACT:
+ * - Blank lines and `#` comments are dropped.
+ * - `!` negations are dropped: ESLint's flat-config `ignores` handles them
+ *   differently from git (relative vs. anchored semantics), and this
+ *   repository's `.gitignore` does not use negations.
+ * - Lines are trimmed so accidental leading/trailing whitespace can't
+ *   silently disable an ignore rule.
+ */
+export function readGitignorePatterns(file = ".gitignore") {
+  return readFileSync(new URL(`../${file}`, import.meta.url), "utf8")
+    .split(/\r?\n/)
+    .map((line) => line.trim())
+    .filter((line) => line && !line.startsWith("#") && !line.startsWith("!"));
+}