@intellectronica/ruler/dist/agents/GeminiCliAgent.js

Ruler — apply the same rules to all coding agents

"use strict";
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}));
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
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});
var __importStar = (this && this.__importStar) || (function () {
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})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.GeminiCliAgent = void 0;
const path = __importStar(require("path"));
const fs_1 = require("fs");
const AgentsMdAgent_1 = require("./AgentsMdAgent");
class GeminiCliAgent extends AgentsMdAgent_1.AgentsMdAgent {
    getIdentifier() {
        return 'gemini-cli';
    }
    getName() {
        return 'Gemini CLI';
    }
    async applyRulerConfig(concatenatedRules, projectRoot, rulerMcpJson, agentConfig) {
        // First, perform idempotent write of AGENTS.md via base class
        await super.applyRulerConfig(concatenatedRules, projectRoot, null, {
            outputPath: agentConfig?.outputPath,
        });
        // Prepare .gemini/settings.json with contextFileName and MCP configuration
        const settingsPath = path.join(projectRoot, '.gemini', 'settings.json');
        let existingSettings = {};
        try {
            const raw = await fs_1.promises.readFile(settingsPath, 'utf8');
            existingSettings = JSON.parse(raw);
        }
        catch (err) {
            if (err.code !== 'ENOENT') {
                throw err;
            }
        }
        const updated = {
            ...existingSettings,
            contextFileName: 'AGENTS.md',
        };
        // Handle MCP server configuration if provided
        const mcpEnabled = agentConfig?.mcp?.enabled ?? true;
        if (mcpEnabled && rulerMcpJson) {
            const strategy = agentConfig?.mcp?.strategy ?? 'merge';
            // Gemini CLI (since v0.21.0) no longer accepts the "type" field in MCP server entries.
            // Following the MCP spec update from Nov 25, 2025, the transport type is now inferred
            // from the presence of specific keys (command/args -> stdio, url -> sse/http).
            // Strip 'type' field from all incoming servers before merging.
            const stripTypeField = (servers) => {
                const cleaned = {};
                for (const [name, def] of Object.entries(servers)) {
                    if (def && typeof def === 'object') {
                        const copy = { ...def };
                        delete copy.type;
                        cleaned[name] = copy;
                    }
                    else {
                        cleaned[name] = def;
                    }
                }
                return cleaned;
            };
            if (strategy === 'overwrite') {
                // For overwrite, preserve existing settings except MCP servers
                const incomingServers = rulerMcpJson.mcpServers || {};
                updated[this.getMcpServerKey()] = stripTypeField(incomingServers);
            }
            else {
                // For merge strategy, merge with existing MCP servers
                const baseServers = existingSettings[this.getMcpServerKey()] || {};
                const incomingServers = rulerMcpJson.mcpServers || {};
                const mergedServers = { ...baseServers, ...incomingServers };
                updated[this.getMcpServerKey()] = stripTypeField(mergedServers);
            }
        }
        await fs_1.promises.mkdir(path.dirname(settingsPath), { recursive: true });
        await fs_1.promises.writeFile(settingsPath, JSON.stringify(updated, null, 2));
    }
    // Ensure MCP merging uses the correct key for Gemini (.gemini/settings.json)
    getMcpServerKey() {
        return 'mcpServers';
    }
    supportsMcpStdio() {
        return true;
    }
    supportsMcpRemote() {
        return true;
    }
    supportsNativeSkills() {
        return true;
    }
}
exports.GeminiCliAgent = GeminiCliAgent;