diff --git a/packages/opencode/src/cli/cmd/tui/thread.ts b/packages/opencode/src/cli/cmd/tui/thread.ts
index 96ceb905c5ff..e3e9eb811779 100644
--- a/packages/opencode/src/cli/cmd/tui/thread.ts
+++ b/packages/opencode/src/cli/cmd/tui/thread.ts
@@ -15,6 +15,7 @@ import type { EventSource } from "./context/sdk"
 import { win32DisableProcessedInput, win32InstallCtrlCGuard } from "./win32"
 import { writeHeapSnapshot } from "v8"
 import { TuiConfig } from "./config/tui"
+import { OPENCODE_PROCESS_ROLE, OPENCODE_RUN_ID, ensureRunID, sanitizedProcessEnv } from "@/util/opencode-process"
 
 declare global {
   const OPENCODE_WORKER_PATH: string
@@ -129,11 +130,13 @@ export const TuiThreadCommand = cmd({
         return
       }
       const cwd = Filesystem.resolve(process.cwd())
+      const env = sanitizedProcessEnv({
+        [OPENCODE_PROCESS_ROLE]: "worker",
+        [OPENCODE_RUN_ID]: ensureRunID(),
+      })
 
       const worker = new Worker(file, {
-        env: Object.fromEntries(
-          Object.entries(process.env).filter((entry): entry is [string, string] => entry[1] !== undefined),
-        ),
+        env,
       })
       worker.onerror = (e) => {
         Log.Default.error("thread error", {
diff --git a/packages/opencode/src/cli/cmd/tui/worker.ts b/packages/opencode/src/cli/cmd/tui/worker.ts
index 393a407eb0d3..8cec99c615fd 100644
--- a/packages/opencode/src/cli/cmd/tui/worker.ts
+++ b/packages/opencode/src/cli/cmd/tui/worker.ts
@@ -11,6 +11,9 @@ import { Flag } from "@/flag/flag"
 import { writeHeapSnapshot } from "node:v8"
 import { Heap } from "@/cli/heap"
 import { AppRuntime } from "@/effect/app-runtime"
+import { ensureProcessMetadata } from "@/util/opencode-process"
+
+ensureProcessMetadata("worker")
 
 await Log.init({
   print: process.argv.includes("--print-logs"),
diff --git a/packages/opencode/src/effect/observability.ts b/packages/opencode/src/effect/observability.ts
index efd16ffc0901..1c385d60ae25 100644
--- a/packages/opencode/src/effect/observability.ts
+++ b/packages/opencode/src/effect/observability.ts
@@ -4,9 +4,11 @@ import { OtlpLogger, OtlpSerialization } from "effect/unstable/observability"
 import * as EffectLogger from "./logger"
 import { Flag } from "@/flag/flag"
 import { InstallationChannel, InstallationVersion } from "@/installation/version"
+import { ensureProcessMetadata } from "@/util/opencode-process"
 
 const base = Flag.OTEL_EXPORTER_OTLP_ENDPOINT
 export const enabled = !!base
+const processID = crypto.randomUUID()
 
 const headers = Flag.OTEL_EXPORTER_OTLP_HEADERS
   ? Flag.OTEL_EXPORTER_OTLP_HEADERS.split(",").reduce(
@@ -19,26 +21,34 @@ const headers = Flag.OTEL_EXPORTER_OTLP_HEADERS
     )
   : undefined
 
-const resource = {
-  serviceName: "opencode",
-  serviceVersion: InstallationVersion,
-  attributes: {
-    "deployment.environment.name": InstallationChannel,
-    "opencode.client": Flag.OPENCODE_CLIENT,
-  },
+function resource() {
+  const processMetadata = ensureProcessMetadata("main")
+  return {
+    serviceName: "opencode",
+    serviceVersion: InstallationVersion,
+    attributes: {
+      "deployment.environment.name": InstallationChannel,
+      "opencode.client": Flag.OPENCODE_CLIENT,
+      "opencode.process_role": processMetadata.processRole,
+      "opencode.run_id": processMetadata.runID,
+      "service.instance.id": processID,
+    },
+  }
 }
 
-const logs = Logger.layer(
-  [
-    EffectLogger.logger,
-    OtlpLogger.make({
-      url: `${base}/v1/logs`,
-      resource,
-      headers,
-    }),
-  ],
-  { mergeWithExisting: false },
-).pipe(Layer.provide(OtlpSerialization.layerJson), Layer.provide(FetchHttpClient.layer))
+function logs() {
+  return Logger.layer(
+    [
+      EffectLogger.logger,
+      OtlpLogger.make({
+        url: `${base}/v1/logs`,
+        resource: resource(),
+        headers,
+      }),
+    ],
+    { mergeWithExisting: false },
+  ).pipe(Layer.provide(OtlpSerialization.layerJson), Layer.provide(FetchHttpClient.layer))
+}
 
 const traces = async () => {
   const NodeSdk = await import("@effect/opentelemetry/NodeSdk")
@@ -58,7 +68,7 @@ const traces = async () => {
   context.setGlobalContextManager(mgr)
 
   return NodeSdk.layer(() => ({
-    resource,
+    resource: resource(),
     spanProcessor: new SdkBase.BatchSpanProcessor(
       new OTLP.OTLPTraceExporter({
         url: `${base}/v1/traces`,
@@ -73,7 +83,7 @@ export const layer = !base
   : Layer.unwrap(
       Effect.gen(function* () {
         const trace = yield* Effect.promise(traces)
-        return Layer.mergeAll(trace, logs)
+        return Layer.mergeAll(trace, logs())
       }),
     )
 
diff --git a/packages/opencode/src/file/ripgrep.ts b/packages/opencode/src/file/ripgrep.ts
index ac450108e12b..3f16f6c50139 100644
--- a/packages/opencode/src/file/ripgrep.ts
+++ b/packages/opencode/src/file/ripgrep.ts
@@ -7,6 +7,7 @@ import { ripgrep } from "ripgrep"
 
 import { Filesystem } from "@/util"
 import { Log } from "@/util"
+import { sanitizedProcessEnv } from "@/util/opencode-process"
 
 const log = Log.create({ service: "ripgrep" })
 
@@ -157,9 +158,7 @@ type WorkerError = {
 }
 
 function env() {
-  const env = Object.fromEntries(
-    Object.entries(process.env).filter((item): item is [string, string] => item[1] !== undefined),
-  )
+  const env = sanitizedProcessEnv()
   delete env.RIPGREP_CONFIG_PATH
   return env
 }
diff --git a/packages/opencode/src/file/ripgrep.worker.ts b/packages/opencode/src/file/ripgrep.worker.ts
index 62094c7acc72..21a3aef5cc61 100644
--- a/packages/opencode/src/file/ripgrep.worker.ts
+++ b/packages/opencode/src/file/ripgrep.worker.ts
@@ -1,9 +1,8 @@
 import { ripgrep } from "ripgrep"
+import { sanitizedProcessEnv } from "@/util/opencode-process"
 
 function env() {
-  const env = Object.fromEntries(
-    Object.entries(process.env).filter((item): item is [string, string] => item[1] !== undefined),
-  )
+  const env = sanitizedProcessEnv()
   delete env.RIPGREP_CONFIG_PATH
   return env
 }
diff --git a/packages/opencode/src/index.ts b/packages/opencode/src/index.ts
index 67de87c2aadd..0a3a927b46ed 100644
--- a/packages/opencode/src/index.ts
+++ b/packages/opencode/src/index.ts
@@ -38,6 +38,9 @@ import { errorMessage } from "./util/error"
 import { PluginCommand } from "./cli/cmd/plug"
 import { Heap } from "./cli/heap"
 import { drizzle } from "drizzle-orm/bun-sqlite"
+import { ensureProcessMetadata } from "./util/opencode-process"
+
+const processMetadata = ensureProcessMetadata("main")
 
 process.on("unhandledRejection", (e) => {
   Log.Default.error("rejection", {
@@ -108,6 +111,8 @@ const cli = yargs(args)
     Log.Default.info("opencode", {
       version: InstallationVersion,
       args: process.argv.slice(2),
+      process_role: processMetadata.processRole,
+      run_id: processMetadata.runID,
     })
 
     const marker = path.join(Global.Path.data, "opencode.db")
diff --git a/packages/opencode/src/provider/provider.ts b/packages/opencode/src/provider/provider.ts
index 558bcb75a5e2..51aca21c7793 100644
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -968,7 +968,7 @@ function fromModelsDevModel(provider: ModelsDev.Provider, model: ModelsDev.Model
     family: model.family,
     api: {
       id: model.id,
-      url: model.provider?.api ?? provider.api!,
+      url: model.provider?.api ?? provider.api ?? "",
       npm: model.provider?.npm ?? provider.npm ?? "@ai-sdk/openai-compatible",
     },
     status: model.status ?? "active",
@@ -981,10 +981,10 @@ function fromModelsDevModel(provider: ModelsDev.Provider, model: ModelsDev.Model
       output: model.limit.output,
     },
     capabilities: {
-      temperature: model.temperature,
-      reasoning: model.reasoning,
-      attachment: model.attachment,
-      toolcall: model.tool_call,
+      temperature: model.temperature ?? false,
+      reasoning: model.reasoning ?? false,
+      attachment: model.attachment ?? false,
+      toolcall: model.tool_call ?? true,
       input: {
         text: model.modalities?.input?.includes("text") ?? false,
         audio: model.modalities?.input?.includes("audio") ?? false,
@@ -1001,7 +1001,7 @@ function fromModelsDevModel(provider: ModelsDev.Provider, model: ModelsDev.Model
       },
       interleaved: model.interleaved ?? false,
     },
-    release_date: model.release_date,
+    release_date: model.release_date ?? "",
     variants: {},
   }
 
@@ -1143,7 +1143,7 @@ const layer: Layer.Layer<
                   existingModel?.api.npm ??
                   modelsDev[providerID]?.npm ??
                   "@ai-sdk/openai-compatible",
-                url: model.provider?.api ?? provider?.api ?? existingModel?.api.url ?? modelsDev[providerID]?.api,
+                url: model.provider?.api ?? provider?.api ?? existingModel?.api.url ?? modelsDev[providerID]?.api ?? "",
               },
               status: model.status ?? existingModel?.status ?? "active",
               name,
diff --git a/packages/opencode/src/util/opencode-process.ts b/packages/opencode/src/util/opencode-process.ts
new file mode 100644
index 000000000000..f59270ad2d5d
--- /dev/null
+++ b/packages/opencode/src/util/opencode-process.ts
@@ -0,0 +1,24 @@
+export const OPENCODE_RUN_ID = "OPENCODE_RUN_ID"
+export const OPENCODE_PROCESS_ROLE = "OPENCODE_PROCESS_ROLE"
+
+export function ensureRunID() {
+  return (process.env[OPENCODE_RUN_ID] ??= crypto.randomUUID())
+}
+
+export function ensureProcessRole(fallback: "main" | "worker") {
+  return (process.env[OPENCODE_PROCESS_ROLE] ??= fallback)
+}
+
+export function ensureProcessMetadata(fallback: "main" | "worker") {
+  return {
+    runID: ensureRunID(),
+    processRole: ensureProcessRole(fallback),
+  }
+}
+
+export function sanitizedProcessEnv(overrides?: Record<string, string>) {
+  const env = Object.fromEntries(
+    Object.entries(process.env).filter((entry): entry is [string, string] => entry[1] !== undefined),
+  )
+  return overrides ? Object.assign(env, overrides) : env
+}
diff --git a/packages/opencode/test/provider/provider.test.ts b/packages/opencode/test/provider/provider.test.ts
index df8fc4e966ab..8993020820e3 100644
--- a/packages/opencode/test/provider/provider.test.ts
+++ b/packages/opencode/test/provider/provider.test.ts
@@ -1916,7 +1916,7 @@ test("mode cost preserves over-200k pricing from base model", () => {
         },
       },
     },
-  } as ModelsDev.Provider
+  } as unknown as ModelsDev.Provider
 
   const model = Provider.fromModelsDevProvider(provider).models["gpt-5.4-fast"]
   expect(model.cost.input).toEqual(5)
@@ -1934,6 +1934,38 @@ test("mode cost preserves over-200k pricing from base model", () => {
   })
 })
 
+test("models.dev normalization fills required response fields", () => {
+  const provider = {
+    id: "gateway",
+    name: "Gateway",
+    env: [],
+    models: {
+      "gpt-5.4": {
+        id: "gpt-5.4",
+        name: "GPT-5.4",
+        family: "gpt",
+        cost: {
+          input: 2.5,
+          output: 15,
+        },
+        limit: {
+          context: 1_050_000,
+          input: 922_000,
+          output: 128_000,
+        },
+      },
+    },
+  } as unknown as ModelsDev.Provider
+
+  const model = Provider.fromModelsDevProvider(provider).models["gpt-5.4"]
+  expect(model.api.url).toBe("")
+  expect(model.capabilities.temperature).toBe(false)
+  expect(model.capabilities.reasoning).toBe(false)
+  expect(model.capabilities.attachment).toBe(false)
+  expect(model.capabilities.toolcall).toBe(true)
+  expect(model.release_date).toBe("")
+})
+
 test("model variants are generated for reasoning models", async () => {
   await using tmp = await tmpdir({
     init: async (dir) => {