feat(tools): add search and map tools

.opencode/agents/instruction.md

@@ -30,7 +30,9 @@ Skills 树是**动态生长的**——工作流不是预置的，而是从实际
 |------|------|
 | 获取后端数据（数据源、推理、分析） | `tjwater_cli` |
 | 发现可用命令 | `tjwater_cli(command="help")` |
-| UI 操作 / 可视化 | `locate_features`、`view_scada`、`show_chart`、`render_junctions`、`view_history`、`apply_layer_style` |
+| 查询实时公开网页信息 | `web_search` |
+| 地址/地点转经纬度 | `geocode` |
+| UI 操作 / 可视化 | `locate_features`、`zoom_to_map`、`view_scada`、`show_chart`、`render_junctions`、`view_history`、`apply_layer_style` |
 | 持久化渲染数据 | ①准备 { node_area_map } JSON → ②`store_render_ref` 存为受控 ref → ③`render_junctions` 渲染到前端 |
 
 **前端工具仅做显示，不返回数据**，不要假设其返回内容。

.opencode/tools/geocode.ts

@@ -0,0 +1,37 @@
+import { tool } from "@opencode-ai/plugin";
+
+const internalBaseUrl =
+  process.env.TJWATER_AGENT_INTERNAL_BASE_URL ?? "http://127.0.0.1:8787";
+const internalToken = process.env.TJWATER_AGENT_INTERNAL_TOKEN ?? "";
+
+export default tool({
+  description:
+    "调用 TJWater 后端的天地图地理编码服务，将中国境内结构化地址或地点名称转换为经纬度。若需缩放地图，把返回的 location.lon/location.lat 传给 zoom_to_map，并设置 source_crs='EPSG:4326'。",
+  args: {
+    reason: tool.schema
+      .string()
+      .describe("Why geocoding is required for the current user request."),
+    keyword: tool.schema
+      .string()
+      .describe("Address or place name to geocode, such as 北京市人民政府."),
+  },
+  async execute(args, context) {
+    const response = await fetch(`${internalBaseUrl}/internal/tools/geocode`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        "x-agent-internal-token": internalToken,
+      },
+      body: JSON.stringify({
+        session_id: context.sessionID,
+        keyword: args.keyword,
+      }),
+    });
+
+    const text = await response.text();
+    if (!response.ok) {
+      throw new Error(text);
+    }
+    return text;
+  },
+});

.opencode/tools/web_search.ts

@@ -0,0 +1,62 @@
+import { tool } from "@opencode-ai/plugin";
+
+const internalBaseUrl =
+  process.env.TJWATER_AGENT_INTERNAL_BASE_URL ?? "http://127.0.0.1:8787";
+const internalToken = process.env.TJWATER_AGENT_INTERNAL_TOKEN ?? "";
+
+export default tool({
+  description:
+    "调用 TJWater 后端的实时网页搜索服务。适合查询新闻、政策、规范、产品资料、公开网页事实等可能变化的信息。",
+  args: {
+    reason: tool.schema
+      .string()
+      .describe("Why web search is required for the current user request."),
+    query: tool.schema.string().describe("Search query text."),
+    freshness: tool.schema
+      .enum(["noLimit", "oneDay", "oneWeek", "oneMonth", "oneYear"])
+      .optional()
+      .describe("Optional freshness filter. Defaults to noLimit."),
+    summary: tool.schema
+      .boolean()
+      .optional()
+      .describe("Whether the backend should include page summaries."),
+    count: tool.schema
+      .number()
+      .int()
+      .positive()
+      .optional()
+      .describe("Optional result count, backend accepts 1 to 50."),
+    include: tool.schema
+      .array(tool.schema.string())
+      .optional()
+      .describe("Optional domains to include."),
+    exclude: tool.schema
+      .array(tool.schema.string())
+      .optional()
+      .describe("Optional domains to exclude."),
+  },
+  async execute(args, context) {
+    const response = await fetch(`${internalBaseUrl}/internal/tools/web-search`, {
+      method: "POST",
+      headers: {
+        "Content-Type": "application/json",
+        "x-agent-internal-token": internalToken,
+      },
+      body: JSON.stringify({
+        session_id: context.sessionID,
+        query: args.query,
+        freshness: args.freshness,
+        summary: args.summary,
+        count: args.count,
+        include: args.include,
+        exclude: args.exclude,
+      }),
+    });
+
+    const text = await response.text();
+    if (!response.ok) {
+      throw new Error(text);
+    }
+    return text;
+  },
+});

.opencode/tools/zoom_to_map.ts

@@ -0,0 +1,32 @@
+import { tool } from "@opencode-ai/plugin";
+
+export default tool({
+  description:
+    "在前端地图上缩放定位到坐标。默认坐标为 EPSG:3857；如果来自天地图 geocode 的 lon/lat，传 source_crs='EPSG:4326'，前端会转换为 EPSG:3857 后缩放。",
+  args: {
+    reason: tool.schema
+      .string()
+      .describe("Why this map zoom action is needed for the current request."),
+    x: tool.schema
+      .number()
+      .describe("X coordinate. For EPSG:4326 this is longitude; for EPSG:3857 this is meters."),
+    y: tool.schema
+      .number()
+      .describe("Y coordinate. For EPSG:4326 this is latitude; for EPSG:3857 this is meters."),
+    source_crs: tool.schema
+      .enum(["EPSG:3857", "EPSG:4326"])
+      .optional()
+      .describe("Input coordinate CRS. Defaults to EPSG:3857."),
+    zoom: tool.schema
+      .number()
+      .optional()
+      .describe("Optional OpenLayers zoom level. Defaults to 18."),
+    duration_ms: tool.schema
+      .number()
+      .optional()
+      .describe("Optional animation duration in milliseconds. Defaults to 1000."),
+  },
+  async execute() {
+    return "已缩放到指定地图坐标。";
+  },
+});

src/routes/chatStreamEvents.ts

@@ -61,9 +61,12 @@ const isDevelopmentDebugLoggingEnabled = process.env.NODE_ENV === "development";
 
 const toolLabels: Record<string, string> = {
   memory_manager: "记忆写入",
+  geocode: "地理编码",
   session_search: "历史会话检索",
   skill_manager: "流程沉淀",
+  web_search: "网页搜索",
   locate_features: "地图定位",
+  zoom_to_map: "地图缩放",
   view_history: "历史数据面板",
   view_scada: "SCADA 面板",
   show_chart: "图表渲染",

src/server.ts

@@ -250,6 +250,143 @@ app.post("/internal/tools/session-search", async (req, res) => {
   });
 });
 
+const callBackendJson = async (
+  path: string,
+  accessToken: string | undefined,
+  payload: unknown,
+) => {
+  const controller = new AbortController();
+  const timer = setTimeout(() => controller.abort(), config.TJWATER_API_TIMEOUT_MS);
+  try {
+    const headers: Record<string, string> = {
+      Accept: "application/json",
+      "Content-Type": "application/json",
+    };
+    if (accessToken) {
+      headers.Authorization = `Bearer ${accessToken}`;
+    }
+    const response = await fetch(new URL(path, config.TJWATER_API_BASE_URL), {
+      method: "POST",
+      headers,
+      body: JSON.stringify(payload),
+      signal: controller.signal,
+    });
+    const text = await response.text();
+    return {
+      ok: response.ok,
+      status: response.status,
+      text,
+    };
+  } finally {
+    clearTimeout(timer);
+  }
+};
+
+const parseStringArray = (value: unknown) =>
+  Array.isArray(value)
+    ? value.filter((item): item is string => typeof item === "string")
+    : undefined;
+
+app.post("/internal/tools/web-search", async (req, res) => {
+  if (req.header("x-agent-internal-token") !== internalToken) {
+    res.status(403).json({ message: "forbidden" });
+    return;
+  }
+
+  const sessionId =
+    typeof req.body?.session_id === "string" ? req.body.session_id.trim() : "";
+  const context = sessionId ? getRuntimeSessionContext(sessionId) : null;
+  if (!context) {
+    res.status(404).json({
+      message: "session context not found",
+      detail: sessionId,
+    });
+    return;
+  }
+
+  const query = typeof req.body?.query === "string" ? req.body.query.trim() : "";
+  if (!query) {
+    res.status(400).json({ message: "query is required" });
+    return;
+  }
+
+  const count =
+    typeof req.body?.count === "number" && Number.isFinite(req.body.count)
+      ? Math.trunc(req.body.count)
+      : undefined;
+  const payload = {
+    query,
+    freshness:
+      typeof req.body?.freshness === "string" ? req.body.freshness : undefined,
+    summary:
+      typeof req.body?.summary === "boolean" ? req.body.summary : undefined,
+    count,
+    include: parseStringArray(req.body?.include),
+    exclude: parseStringArray(req.body?.exclude),
+  };
+
+  try {
+    const response = await callBackendJson(
+      "/api/v1/web-search",
+      context.accessToken,
+      payload,
+    );
+    res
+      .status(response.ok ? 200 : response.status)
+      .type("application/json")
+      .send(response.text);
+  } catch (error) {
+    const detail = error instanceof Error ? error.message : String(error);
+    res.status(503).json({
+      message: "web search service unavailable",
+      detail,
+    });
+  }
+});
+
+app.post("/internal/tools/geocode", async (req, res) => {
+  if (req.header("x-agent-internal-token") !== internalToken) {
+    res.status(403).json({ message: "forbidden" });
+    return;
+  }
+
+  const sessionId =
+    typeof req.body?.session_id === "string" ? req.body.session_id.trim() : "";
+  const context = sessionId ? getRuntimeSessionContext(sessionId) : null;
+  if (!context) {
+    res.status(404).json({
+      message: "session context not found",
+      detail: sessionId,
+    });
+    return;
+  }
+
+  const keyword =
+    typeof req.body?.keyword === "string" ? req.body.keyword.trim() : "";
+  if (!keyword) {
+    res.status(400).json({ message: "keyword is required" });
+    return;
+  }
+
+  try {
+    const response = await callBackendJson(
+      "/api/v1/tianditu/geocode",
+      context.accessToken,
+      { keyword },
+    );
+    res
+      .status(response.ok ? 200 : response.status)
+      .type("application/json")
+      .send(response.text);
+  } catch (error) {
+    const detail = error instanceof Error ? error.message : String(error);
+    res.status(503).json({
+      message: "geocoding service unavailable",
+      detail,
+    });
+  }
+});
+
 app.use(
   "/api/v1/agent/chat",
   buildChatRouter(