catalog: drop Gemini from mlx-agent hosts

README.md

@@ -6,7 +6,7 @@
 
 | Plugin | Claude | Codex | Gemini | OpenCode | AgentSkills |
 | --- | :---: | :---: | :---: | :---: | :---: |
-| [`mlx-agent`](https://github.com/cavi-ai/mlx-agent) — discover, verify, and wire local MLX models | ✓ | ✓ | ✓ | ✓ | ✓ |
+| [`mlx-agent`](https://github.com/cavi-ai/mlx-agent) — discover, verify, and wire local MLX models | ✓ | ✓ | — | ✓ | ✓ |
 | [`obsidian-agent`](https://github.com/cavi-ai/obsidian-agent) — portable vault workflows over the official Obsidian CLI | ✓ | ✓ | ✓ | ✓ | ✓ |
 
 The machine-readable source of truth is [`catalog.json`](catalog.json). Claude and Codex consume native marketplace projections. Gemini and OpenCode use the discovery records under `providers/`, which link to each source repository's tested installer; those files do not claim a native marketplace protocol. Portable AgentSkills packages remain available from each plugin repository.
@@ -37,16 +37,13 @@ These package projections are distribution artifacts, not independent workflow s
 
 ## Gemini CLI
 
-Gemini discovery metadata is in [`providers/gemini/catalog.json`](providers/gemini/catalog.json). Each entry records the source repository's native installation command. For example:
+Gemini discovery metadata is in [`providers/gemini/catalog.json`](providers/gemini/catalog.json). Each entry records the source repository's native installation command:
 
 ```sh
-git clone https://github.com/cavi-ai/mlx-agent.git
-gemini extensions install ./mlx-agent/providers/gemini
-
 gemini extensions install https://github.com/cavi-ai/obsidian-agent
 ```
 
-Both commands use Gemini's native extension loader. The discovery catalog itself does not install anything.
+The command uses Gemini's native extension loader. The discovery catalog itself does not install anything. `mlx-agent` does not ship a Gemini extension.
 
 ## OpenCode
 
@@ -75,4 +72,4 @@ node --test
 node scripts/validate-catalog.mjs
 ```
 
-Validation rejects identity drift, unknown or missing hosts, duplicate entries, non-plugin products, and projections that disagree with the canonical repository or package path.
+Validation rejects identity drift, unknown hosts, packages for undeclared hosts, duplicate entries, non-plugin products, and projections that disagree with the canonical host list, repository, or package path.

catalog.json

@@ -7,11 +7,10 @@
       "repository": "cavi-ai/mlx-agent",
       "license": "MIT",
       "summary": "Discover, verify, and wire local MLX-optimized models on Apple Silicon.",
-      "hosts": ["claude", "codex", "gemini", "opencode", "agentskills"],
+      "hosts": ["claude", "codex", "opencode", "agentskills"],
       "packages": {
         "claude": { "path": "." },
         "codex": { "path": "packages/codex/mlx-agent" },
-        "gemini": { "path": "providers/gemini" },
         "opencode": { "path": "providers/opencode" },
         "agentskills": { "path": "providers/agentskills" }
       }

catalog.schema.json

@@ -32,11 +32,10 @@
         "repository": { "type": "string", "pattern": "^cavi-ai/[a-z0-9-]+$" },
         "license": { "type": "string", "minLength": 1 },
         "summary": { "type": "string", "minLength": 1 },
-        "hosts": { "type": "array", "minItems": 5, "maxItems": 5, "uniqueItems": true, "items": { "$ref": "#/$defs/host" } },
+        "hosts": { "type": "array", "minItems": 1, "uniqueItems": true, "items": { "$ref": "#/$defs/host" } },
         "packages": {
           "type": "object",
           "additionalProperties": false,
-          "required": ["claude", "codex", "gemini", "opencode", "agentskills"],
           "properties": {
             "claude": { "$ref": "#/$defs/package" },
             "codex": { "$ref": "#/$defs/package" },

providers/gemini/catalog.json

@@ -3,12 +3,6 @@
   "host": "gemini",
   "protocol": "discovery",
   "plugins": [
-    {
-      "name": "mlx-agent",
-      "repository": "cavi-ai/mlx-agent",
-      "package": "providers/gemini",
-      "install": { "command": "git clone https://github.com/cavi-ai/mlx-agent.git && gemini extensions install ./mlx-agent/providers/gemini" }
-    },
     {
       "name": "obsidian-agent",
       "repository": "cavi-ai/obsidian-agent",

scripts/validate-catalog.mjs

@@ -19,7 +19,6 @@ const MLX_EXCLUDED = [".mlx-agent-generated-files.json", "skills/*/scripts/mlx-a
 const MLX_EXCLUSION_REASON = "Codex skills use the packaged CLI entrypoint; MCP transport artifacts are not required or distributed by this catalog.";
 const DISCOVERY_COMMANDS = {
   gemini: {
-    "mlx-agent": "git clone https://github.com/cavi-ai/mlx-agent.git && gemini extensions install ./mlx-agent/providers/gemini",
     "obsidian-agent": "gemini extensions install https://github.com/cavi-ai/obsidian-agent"
   },
   opencode: {
@@ -106,15 +105,17 @@ function validateCanonicalSchema(schema, catalog, errors) {
     if (Object.hasOwn(plugin, "hosts")) {
       if (!Array.isArray(plugin.hosts)) violation(`${location}.hosts`, "must be an array");
       else {
-        if (plugin.hosts.length !== 5) violation(`${location}.hosts`, "must contain exactly 5 items");
+        if (plugin.hosts.length < 1) violation(`${location}.hosts`, "must contain at least 1 item");
         if (new Set(plugin.hosts.map((host) => JSON.stringify(host))).size !== plugin.hosts.length) violation(`${location}.hosts`, "must contain unique items");
         plugin.hosts.forEach((host, hostIndex) => { if (!HOSTS.includes(host)) violation(`${location}.hosts[${hostIndex}]`, "must be a supported host"); });
       }
     }
     if (!Object.hasOwn(plugin, "packages")) continue;
     if (!plugin.packages || typeof plugin.packages !== "object" || Array.isArray(plugin.packages)) { violation(`${location}.packages`, "must be an object"); continue; }
     for (const key of unknownKeys(plugin.packages, HOSTS)) errors.push(`catalog plugin ${plugin?.name} unknown package host: ${key}`);
-    for (const host of HOSTS) {
+    const declared = Array.isArray(plugin.hosts) ? [...new Set(plugin.hosts.filter((host) => HOSTS.includes(host)))] : [];
+    for (const key of Object.keys(plugin.packages)) if (HOSTS.includes(key) && !declared.includes(key)) errors.push(`catalog plugin ${plugin?.name} package for undeclared host: ${key}`);
+    for (const host of declared) {
       if (!Object.hasOwn(plugin.packages, host)) { violation(`${location}.packages.${host}`, "is required"); continue; }
       const pkg = plugin.packages[host];
       if (!pkg || typeof pkg !== "object" || Array.isArray(pkg)) { violation(`${location}.packages.${host}`, "must be an object"); continue; }
@@ -262,7 +263,6 @@ export async function validateCatalog(root = process.cwd()) {
         seenHosts.add(host);
       }
       for (const host of plugin.hosts) if (!HOSTS.includes(host)) errors.push(`${prefix} unknown host: ${host}`);
-      for (const host of HOSTS) if (!seenHosts.has(host)) errors.push(`${prefix} required host missing: ${host}`);
       for (const host of new Set(plugin.hosts.filter((item) => HOSTS.includes(item)))) {
         if (!plugin.packages?.[host]?.path) errors.push(`${prefix} package path missing for host: ${host}`);
       }