feat: add safe GitHub CLI wrapper

AGENTS.md

@@ -43,6 +43,7 @@ UniDesk 是一个以主 server 为统一入口的分布式工作平台；本文
 - `bun scripts/cli.ts deploy check/plan/apply [--file deploy.json|--env dev|prod] [--service <id>]`：按根目录 `deploy.json` 或 `origin/master:deploy.json#environments.<env>` 的服务 repo 和 commit 期望状态校验或更新用户服务；`--env dev` 开放 D601 `backend-core` rollout、reviewed registry artifact consumers 和 D601 direct consumer validation，`findjob`/`pipeline` 是 D601 direct pull-only 样板，`met-nonlinear` dry-run blocked，`k3sctl-adapter` supervisor-only，`code-queue` prod unsupported，规则见 `docs/reference/deploy.md` 与 `docs/reference/dev-environment.md`。
 - `bun scripts/cli.ts dev-env validate [--manifest path] [--kubectl-dry-run]` / `dev-env prewarm-images`：离线校验 D601 `unidesk-dev` 生产隔离护栏和 dev workload manifests，或把开发底座基础镜像预热到 D601 原生 k3s containerd，规则见 `docs/reference/deploy.md` 与 `docs/reference/microservices.md`。
 - `bun scripts/cli.ts artifact-registry plan|render|status|health|install|deploy-backend-core|deploy-service`：管理 D601 host-managed CNCF Distribution registry，并通过短生命周期 relay 或 D601 pull/import 做 commit-pinned pull-only artifact CD；`deploy-backend-core` 是 deprecated 兼容名，`findjob`/`pipeline` 支持 D601 direct dev/prod，`met-nonlinear` 和 `k3sctl-adapter` 只给受限计划路径，`code-queue` 只支持 dev，规则见 `docs/reference/artifact-registry.md`。
+- `bun scripts/cli.ts gh auth status|issue ...|pr list|view`：通过 REST 执行安全 GitHub issue 读写、脱敏 auth/status 诊断、body-file Markdown 写入和 escape 扫描；PR 第一阶段只支持只读 list/view，规则见 `docs/reference/cli.md` 和 `docs/reference/code-queue-supervision.md`。
 - `bun scripts/cli.ts ci install/status/run/publish-backend-core/publish-user-service/run-dev-e2e/logs`：在 D601 原生 k3s 上安装和运行 Tekton CI，支持每 commit 检查、Code Queue 只读性能门禁、`CI.json` catalog 驱动的 backend-core 与 user-service commit-pinned 镜像发布和手动触发的 `origin/master:deploy.json#environments.dev` 临时 namespace e2e；catalog/producer/consumer 分工见 `docs/reference/cicd-standardization.md`，`run-dev-e2e` 的 Git 控制 runner、短 launcher 和 no-CD 边界见 `docs/reference/dev-ci-runner.md`，Tekton 规则见 `docs/reference/ci.md`。
 - `bun scripts/cli.ts codex deploy <commitId>`：旧 Code Queue 兼容部署入口已禁用，原因是它会绕过受控部署边界直连 D601 部署 Code Queue；规则见 `docs/reference/codex-deploy.md`。
 - `bun scripts/cli.ts codex submit [prompt] [--prompt-file path|--prompt-stdin] [--queue <id>]`：通过 backend-core 私有代理提交 Code Queue 任务；控制面默认走主 server `code-queue-mgr` 写入 PostgreSQL，`--dry-run` 可只检查请求体不入队，规则见 `docs/reference/cli.md`。

docs/reference/cli.md

@@ -29,6 +29,9 @@ CLI 可以从 `master` 快速演进，但必须兼容 `deploy.json` 固定的 CI
 - `dev-env validate [--manifest path] [--kubectl-dry-run]` 离线校验 D601 `unidesk-dev` namespace、dev PostgreSQL 底座和 dev workload manifest。默认检查 `src/components/microservices/k3sctl-adapter/k3s/dev/unidesk-dev-foundation.k8s.yaml`；也可显式校验 `src/components/microservices/k3sctl-adapter/k3s/dev/unidesk-dev-core.k8s.yaml` 或 `src/components/microservices/k3sctl-adapter/k3s/dev/unidesk-dev-code-queue.k8s.yaml`。所有 namespaced 对象必须只落到 `unidesk-dev`，foundation manifest 必须包含 `postgres-dev` StatefulSet/Service、dev secret/config、迁移 Job 和 DB URL guard，core manifest 必须包含 `backend-core-dev`/`frontend-dev` Deployment/Service，Code Queue dev manifest 必须包含 `code-queue-scheduler-dev`、`code-queue-read-dev`、`code-queue-write-dev`、dev provider egress proxy，以及只读挂载宿主 `/home/ubuntu/.agents/skills` 到容器 `/root/.agents/skills` 的 `skills-dir` volume。加 `--kubectl-dry-run` 时额外执行 `kubectl apply --dry-run=client --validate=false -f <manifest>`，仍不 apply 资源。
 - `dev-env prewarm-images [--image image] [--provider-id D601] [--no-pull] [--proxy-url URL] [--pull-timeout-ms N] [--dry-run]` 创建异步 job，通过 UniDesk SSH 维护桥在 D601 上把开发底座依赖镜像从 Docker 缓存导入原生 k3s containerd。默认镜像是 `postgres:16-alpine` 和 `rancher/mirrored-library-busybox:1.36.1`，用于避免 `postgres-dev` 与 local-path helper pod 卡在外部 registry 拉取。该命令固定验证 `/etc/rancher/k3s/k3s.yaml` 指向的 native k3s 上下文，并输出 `dev_env_containerd_image_ready=...` 作为成功判据；它不 apply manifest、不修改生产 `unidesk` namespace。
 - `artifact-registry plan|render|status|health|install|deploy-backend-core|deploy-service` 管理 D601 host-managed CNCF Distribution registry 的声明、安装、只读检查和 pull-only artifact CD。该 registry 固定为 D601 loopback `127.0.0.1:5000`，由 systemd + Docker Compose 管理，位于 native k3s 故障域外；`deploy-service` 只拉取 CI 已发布的 commit-pinned 镜像、retag/recreate 或导入 native k3s，并做 live commit 验证，不构建 runtime source。`deploy-backend-core` 是 deprecated 兼容名，标准 backend-core prod CD 入口是 `deploy apply --env prod --service backend-core`。长期规则见 `docs/reference/artifact-registry.md`。
+- `gh auth status [--repo owner/name]` 探测 GitHub 操作前置条件并输出脱敏 JSON：是否存在 `gh` binary、是否存在 `GH_TOKEN`/`GITHUB_TOKEN` 或可用 `gh auth token` fallback、REST API 是否可达、目标 repo 是否可见、issue 是否可读。degraded reason 必须归类为 `missing-binary`、`missing-token`、`egress-failed`、`permission-denied`、`repo-not-found`、`issue-not-found`、`invalid-response` 或 `unsupported-command`，不得打印 token。
+- `gh issue view <number> [--repo owner/name]` 通过 GitHub REST 读取 issue title/body/state/url 和 comments，默认输出 JSON。`gh issue create --title <title> --body-file <file> [--dry-run]`、`gh issue edit <number> --body-file <file> [--title ...] [--dry-run]`、`gh issue comment <number> --body-file <file> [--dry-run]`、`gh issue close|reopen <number> [--dry-run]` 都走 REST，不依赖 `gh` binary；`--dry-run` 不调用 GitHub，只返回 repo/title/bodyChars/bodyPreview/bodyPreviewLines 和 newline/Markdown 检测结果。
+- `gh issue scan-escape [--repo owner/name] [--limit N]` 只读扫描 issue 主体和 comments 中的字面量 `\n`、可疑 `\t`、shell newline escape 和 ANSI escape 字符串，输出 issue/comment id、url、kind、snippet，不自动修复。`gh pr list|view` 第一阶段只提供 REST 只读列表和详情；PR create/edit/comment/merge 仍是 planned 状态，未知 PR 写命令必须结构化返回 `unsupported-command`，不能假装支持。
 - `ci install|status|run|publish-backend-core|publish-user-service|run-dev-e2e|logs` 管理 D601 原生 k3s 上的 Tekton CI。`run` 手动创建每 commit 检查和 Code Queue 只读性能门禁；`publish-backend-core` 与 `publish-user-service` 从 pushed Git commit 构建并发布 `127.0.0.1:5000/unidesk/<service>:<commit>` commit-pinned artifacts，输出 `artifactSummary`（含 `serviceId`、`sourceCommit`、`sourceRepo`、`dockerfile`、`imageRef`、`tag`、`digest`、`digestRef`），但不部署生产；`run-dev-e2e` 的 Git 控制 runner、短 launcher、host fetch 边界、临时 smoke namespace 和 no-CD 规则只在 `docs/reference/dev-ci-runner.md` 定义；Tekton CI 通用规则见 `docs/reference/ci.md`。
 - `codex deploy <commitId>` 是旧 Code Queue 兼容部署入口，已禁用以防止维护通道直连 D601 部署 Code Queue；当前 dev 自动化只做 `ci run-dev-e2e` smoke，不提供 Code Queue CD，详细规则见 `docs/reference/codex-deploy.md`。
 - `codex submit [prompt] [--prompt-file path|--prompt-stdin] [--queue queueId] [--provider-id id] [--cwd path] [--model model] [--reasoning-effort effort] [--execution-mode mode] [--max-attempts N] [--reference-task-id id] [--dry-run]` 通过 backend-core 私有代理向稳定 `code-queue` 用户服务路径提交任务；prompt 必须且只能来自位置参数、文件或 stdin 之一，`--dry-run` 只返回结构化请求且不实际入队。提交确认和 dry-run 必须返回完整 prompt、字符数和 `truncated=false`，不能套用任务详情的预览截断策略，否则长任务 prompt 无法被人工验收。真实提交会经过本机本地串行化保护和短节流，避免同一指挥端并发 submit 把低内存主机或 `code-queue-mgr` 控制面打抖；返回值会附带 `submitConcurrencyGuard` 说明本次提交的锁与等待信息。backend-core 默认把提交、队列 CRUD、已读状态、历史摘要和轻量 Trace 读取分流到主 server `code-queue-mgr`，由它写入主 PostgreSQL；D601 scheduler 只轮询并执行已入库任务。
@@ -62,6 +65,8 @@ CLI 可以从 `master` 快速演进，但必须兼容 `deploy.json` 固定的 CI
 
 `microservice proxy` 是面向人工验证和受控调试的私有后端入口。默认 method 为 GET；使用 `--body-json JSON`、`--body-file path` 或 `--body-stdin` 时默认 method 切换为 POST，也可显式加 `--method POST|PUT|PATCH|DELETE`，但 GET/HEAD 不允许携带请求体。所有请求仍受 config 中的 `allowedMethods` 和 `allowedPathPrefixes` 限制。为了避免 Pipeline snapshot 这类超大业务 JSON 造成 CLI 输出爆炸，响应 body 超过默认阈值时会返回 `bodyOmitted=true`、`bodyPreview`、`bodyBytes` 和 `rawHint`；`--raw` 仍受默认硬限额保护，需要完整 body 时显式添加 `--raw --full`，或用 `--max-body-bytes <N>` 调整预览阈值。正式 frontend 展示仍应优先使用业务控件和 `__unideskArrayLimit` 这类展示级裁剪参数，而不是默认倾倒完整 JSON。
 
+GitHub issue 写操作必须优先使用 `bun scripts/cli.ts gh issue ... --body-file <file>`。不要把 Markdown 正文拼进 shell 参数、`gh issue comment --body` 或 `gh api -f body=...`；这些路径容易把真实换行污染成字面量 `\n`。`gh issue` 写命令第一阶段不接受 stdin 正文；需要从生成内容写入 issue 时，先落到临时 Markdown 文件或已审阅的工作文件，再把该文件路径传给 `--body-file`。CLI 会按 UTF-8 原样读取文件内容并用 JSON body 调用 REST API。
+
 `network perf` 用于生成组网性能前后对比数据。标准 Code Queue overview 读路径基准命令是 `bun scripts/cli.ts network perf --service code-queue --path /api/tasks/overview?limit=30 --count 30 --concurrency 1 --label before`，远程主 server 可用 `bun scripts/cli.ts --main-server-ip 74.48.78.17 network perf ...`。输出包含成功/失败数、状态码分布、`x-unidesk-cache`、`x-unidesk-proxy-mode`、`x-unidesk-upstream-proxy-mode` 分布和 min/p50/p90/p95/max；provider-gateway 长连接数据面验收应看到 `proxyModeCounts.provider-ws-http-tunnel`，adapter native Service 数据面验收应看到 upstream proxy mode 为 `kubernetes-native-service`，若出现 `kubernetes-api-service-proxy` 必须结合 `/api/control-plane.nativeServiceProxy.failedServices` 解释 fallback 原因。
 
 ## Debug Contract

docs/reference/code-queue-supervision.md

@@ -57,11 +57,13 @@ issue 内容必须自包含，至少写清楚背景、外部收益、当前观
 
 如果某个 worker 任务需要依赖 GitHub issue 内容，但 runner 的 issue 可达性尚未被单独验证，指挥官不能默认 worker 已能读取该 issue。此时 worker prompt 必须直接内嵌完整需求、约束和验收点，issue URL 只能作为辅助引用。若要把 issue 作为任务输入源，先单独做可达性探测，再决定是否把 issue 作为常规前置条件。
 
-如果 `gh issue create` 的 GraphQL 路径因为 token scope 或 repository metadata 查询失败，允许使用 GitHub REST API 创建 issue。CLI 或脚本应避免在日志中打印 token；失败原因应归类为 GitHub 凭证/CLI 兼容问题，而不是业务任务失败。
+GitHub issue/PR 操作应优先使用 UniDesk CLI 的安全入口：`bun scripts/cli.ts gh auth status`、`gh issue view/create/edit/comment/close/reopen/scan-escape` 和只读 `gh pr list|view`。该入口默认 repo 是 `pikasTech/unidesk`，支持 `--repo owner/name`，输出稳定 JSON，并把 `missing-binary`、`missing-token`、`egress-failed`、`permission-denied`、`repo-not-found`、`issue-not-found`、`invalid-response`、`unsupported-command` 等失败原因结构化。issue 创建、编辑、评论和关闭使用 GitHub REST API；只要有 `GH_TOKEN` 或 `GITHUB_TOKEN`，就不依赖系统 `gh` binary。`gh` binary 只作为状态探测和 `gh auth token` fallback，不是 issue 写操作的主路径。
+
+所有 GitHub Markdown 正文写入必须来自 `--body-file <file>`。不要使用 `gh issue comment --body`、`gh api -f body=...` 或把多行正文直接拼进 shell 参数；这些路径容易把真实换行、反引号和 Markdown 表格污染成字面量 `\n` 或 shell escape。`gh issue` 写命令第一阶段不接受 stdin 正文；需要更新 #20 总看板、#24 指挥简报或创建新 issue/comment 时，先把正文写入 Markdown 文件，再运行 `bun scripts/cli.ts gh issue edit|comment|create ... --body-file <file>`；更新看板和简报应使用 `issue edit` 更新主体，除非明确需要追加评论。提交前或巡检时可用 `gh issue scan-escape --limit N` 只读扫描污染，不自动修复。
 
 PR 是审查型交付入口，不是所有 Code Queue 任务的默认出口。默认 master-only 交付仍按项目 Git 规则执行；当变更风险高、跨模块、需要人工审查、或任务目标明确要求 PR 交付时，worker 可以创建 PR。PR 型任务必须报告源分支、目标分支、PR URL、关联 issue、测试证据和未完成风险。禁止把 PR 当成隐藏分支仓库；PR 分支必须来自最新目标线，保持小而可审查，并在合并后确认目标分支远端 commit 可 fetch。
 
-PR 支持本身是 Code Queue 能力的一部分。实现前，指挥官可以先把“支持 PR 交付”的需求拆成独立 infra issue 和 task；在能力未完成前，不应让普通 worker 隐式依赖 PR 机制。
+PR 支持本身是 Code Queue 能力的一部分。当前 UniDesk CLI 第一阶段只承诺 `gh pr list|view` 只读能力；PR 创建、编辑、评论、合并和状态流转仍是后续范围。普通 worker 不应隐式依赖未实现的 PR 写能力；需要 PR 交付时，prompt 必须明确允许的人工或后续工具路径，并报告未覆盖范围。
 
 ## 监控
 

scripts/cli.ts

@@ -18,6 +18,7 @@ import { ciHelp, runCiCommand } from "./src/ci";
 import { runSwapCommand } from "./src/swap";
 import { runDevEnvCommand } from "./src/dev-env";
 import { runArtifactRegistryCommand } from "./src/artifact-registry";
+import { runGhCommand } from "./src/gh";
 import { isHelpToken, rootHelp, serverHelp, sshHelp, staticNamespaceHelp } from "./src/help";
 
 const remoteOptions = extractRemoteCliOptions(process.argv.slice(2));
@@ -143,6 +144,14 @@ async function main(): Promise<void> {
     return;
   }
 
+  if (top === "gh") {
+    const result = await runGhCommand(args.slice(1));
+    const ok = (result as { ok?: unknown }).ok !== false;
+    emitJson(commandName, result, ok);
+    if (!ok) process.exitCode = 1;
+    return;
+  }
+
   const config = readConfig();
 
   if (top === "ssh") {

scripts/src/gh.ts

@@ -0,0 +1,618 @@
+import { execFileSync } from "node:child_process";
+import { existsSync, readFileSync } from "node:fs";
+
+const DEFAULT_REPO = "pikasTech/unidesk";
+const GITHUB_API = "https://api.github.com";
+const USER_AGENT = "unidesk-cli-gh";
+const PREVIEW_CHARS = 240;
+
+type GitHubDegradedReason =
+  | "missing-binary"
+  | "missing-token"
+  | "egress-failed"
+  | "permission-denied"
+  | "repo-not-found"
+  | "issue-not-found"
+  | "invalid-response"
+  | "unsupported-command";
+
+interface GitHubCommandResult {
+  ok: boolean;
+  repo: string;
+  command: string;
+  degradedReason?: GitHubDegradedReason;
+  degraded?: GitHubDegradedReason[];
+  [key: string]: unknown;
+}
+
+interface GitHubTokenProbe {
+  present: boolean;
+  source: "GH_TOKEN" | "GITHUB_TOKEN" | "gh-auth-token" | null;
+  ghFallbackAttempted: boolean;
+}
+
+interface GitHubOptions {
+  repo: string;
+  dryRun: boolean;
+  limit: number;
+  title?: string;
+  bodyFile?: string;
+}
+
+interface GitHubErrorPayload {
+  ok: false;
+  degradedReason: GitHubDegradedReason;
+  status?: number;
+  message: string;
+  details?: unknown;
+}
+
+interface GitHubIssue {
+  id: number;
+  number: number;
+  title: string;
+  body: string | null;
+  state: string;
+  html_url: string;
+  comments: number;
+  user?: { login?: string };
+  created_at?: string;
+  updated_at?: string;
+}
+
+interface GitHubComment {
+  id: number;
+  body: string | null;
+  html_url: string;
+  user?: { login?: string };
+  created_at?: string;
+  updated_at?: string;
+}
+
+interface GitHubPullRequest {
+  id: number;
+  number: number;
+  title: string;
+  body: string | null;
+  state: string;
+  html_url: string;
+  draft?: boolean;
+  user?: { login?: string };
+  head?: { ref?: string; sha?: string };
+  base?: { ref?: string; sha?: string };
+  created_at?: string;
+  updated_at?: string;
+}
+
+function optionValue(args: string[], name: string): string | undefined {
+  const index = args.indexOf(name);
+  if (index === -1) return undefined;
+  const value = args[index + 1];
+  if (value === undefined || value.length === 0 || value.startsWith("--")) throw new Error(`${name} requires a value`);
+  return value;
+}
+
+function hasFlag(args: string[], name: string): boolean {
+  return args.includes(name);
+}
+
+function positiveIntegerOption(args: string[], name: string, defaultValue: number, maxValue: number): number {
+  const raw = optionValue(args, name);
+  if (raw === undefined) return defaultValue;
+  const value = Number(raw);
+  if (!Number.isInteger(value) || value <= 0) throw new Error(`${name} must be a positive integer`);
+  return Math.min(value, maxValue);
+}
+
+function parseOptions(args: string[]): GitHubOptions {
+  return {
+    repo: optionValue(args, "--repo") ?? DEFAULT_REPO,
+    dryRun: hasFlag(args, "--dry-run"),
+    limit: positiveIntegerOption(args, "--limit", 30, 100),
+    title: optionValue(args, "--title"),
+    bodyFile: optionValue(args, "--body-file"),
+  };
+}
+
+function parseNumber(raw: string | undefined, label: string): number {
+  if (raw === undefined) throw new Error(`${label} requires a number`);
+  const value = Number(raw);
+  if (!Number.isInteger(value) || value <= 0) throw new Error(`${label} must be a positive integer`);
+  return value;
+}
+
+function readBodyFile(path: string | undefined, command: string): string {
+  if (path === undefined) throw new Error(`${command} requires --body-file <file>`);
+  if (!existsSync(path)) throw new Error(`body file not found: ${path}`);
+  return readFileSync(path, "utf8");
+}
+
+function tokenFromEnvironment(): GitHubTokenProbe {
+  if (process.env.GH_TOKEN && process.env.GH_TOKEN.length > 0) {
+    return { present: true, source: "GH_TOKEN", ghFallbackAttempted: false };
+  }
+  if (process.env.GITHUB_TOKEN && process.env.GITHUB_TOKEN.length > 0) {
+    return { present: true, source: "GITHUB_TOKEN", ghFallbackAttempted: false };
+  }
+  return { present: false, source: null, ghFallbackAttempted: false };
+}
+
+function ghBinaryPath(): string | null {
+  try {
+    const output = execFileSync("sh", ["-lc", "command -v gh"], { encoding: "utf8", stdio: ["ignore", "pipe", "ignore"] }).trim();
+    return output.length > 0 ? output : null;
+  } catch {
+    return null;
+  }
+}
+
+function ghAuthToken(): string | null {
+  try {
+    const output = execFileSync("gh", ["auth", "token"], { encoding: "utf8", stdio: ["ignore", "pipe", "ignore"], timeout: 5000 }).trim();
+    return output.length > 0 ? output : null;
+  } catch {
+    return null;
+  }
+}
+
+function resolveToken(allowGhFallback: boolean): { token: string | null; probe: GitHubTokenProbe } {
+  const envProbe = tokenFromEnvironment();
+  if (envProbe.present) {
+    const token = envProbe.source === "GH_TOKEN" ? process.env.GH_TOKEN ?? null : process.env.GITHUB_TOKEN ?? null;
+    return { token, probe: envProbe };
+  }
+  if (!allowGhFallback) return { token: null, probe: envProbe };
+  const token = ghAuthToken();
+  if (token !== null) return { token, probe: { present: true, source: "gh-auth-token", ghFallbackAttempted: true } };
+  return { token: null, probe: { present: false, source: null, ghFallbackAttempted: true } };
+}
+
+function repoParts(repo: string): { owner: string; name: string } {
+  const [owner, name, extra] = repo.split("/");
+  if (!owner || !name || extra !== undefined) throw new Error("--repo must be in owner/name format");
+  return { owner, name };
+}
+
+function preview(text: string): string {
+  return text.length > PREVIEW_CHARS ? `${text.slice(0, PREVIEW_CHARS)}...` : text;
+}
+
+function dryRunBody(repo: string, title: string | undefined, body: string): Record<string, unknown> {
+  return {
+    repo,
+    ...(title === undefined ? {} : { title }),
+    bodyChars: body.length,
+    bodyPreview: preview(body),
+    bodyPreviewLines: body.split(/\r?\n/).slice(0, 12),
+    preservesRawNewlines: body.includes("\n"),
+    containsLiteralBackslashN: body.includes("\\n"),
+    containsBackticks: body.includes("`"),
+    containsMarkdownTable: /^\s*\|.+\|\s*$/m.test(body),
+  };
+}
+
+async function parseGitHubResponse(response: Response): Promise<unknown> {
+  const text = await response.text();
+  if (text.length === 0) return null;
+  try {
+    return JSON.parse(text) as unknown;
+  } catch {
+    return { raw: preview(text) };
+  }
+}
+
+function classifyHttpStatus(status: number, message: string, path: string): GitHubDegradedReason {
+  if (status === 401 || status === 403) return "permission-denied";
+  if (status === 404) return path.includes("/issues/") || message.toLowerCase().includes("issue") ? "issue-not-found" : "repo-not-found";
+  return "invalid-response";
+}
+
+async function githubRequest<T>(
+  token: string,
+  method: string,
+  path: string,
+  body?: Record<string, unknown>,
+): Promise<T | GitHubErrorPayload> {
+  let response: Response;
+  try {
+    response = await fetch(`${GITHUB_API}${path}`, {
+      method,
+      headers: {
+        Accept: "application/vnd.github+json",
+        Authorization: `Bearer ${token}`,
+        "Content-Type": "application/json",
+        "User-Agent": USER_AGENT,
+        "X-GitHub-Api-Version": "2022-11-28",
+      },
+      body: body === undefined ? undefined : JSON.stringify(body),
+    });
+  } catch (error) {
+    return {
+      ok: false,
+      degradedReason: "egress-failed",
+      message: error instanceof Error ? error.message : String(error),
+    };
+  }
+  const parsed = await parseGitHubResponse(response);
+  if (!response.ok) {
+    const message = typeof parsed === "object" && parsed !== null && "message" in parsed ? String((parsed as { message?: unknown }).message) : response.statusText;
+    return {
+      ok: false,
+      degradedReason: classifyHttpStatus(response.status, message, path),
+      status: response.status,
+      message,
+      details: parsed,
+    };
+  }
+  return parsed as T;
+}
+
+function authRequired(repo: string, command: string, tokenProbe: GitHubTokenProbe): GitHubCommandResult | null {
+  if (!tokenProbe.present) {
+    return {
+      ok: false,
+      command,
+      repo,
+      degradedReason: "missing-token",
+      token: tokenProbe,
+    };
+  }
+  return null;
+}
+
+function isGitHubError(value: unknown): value is GitHubErrorPayload {
+  return typeof value === "object" && value !== null && (value as { ok?: unknown }).ok === false && "degradedReason" in value;
+}
+
+function issueSummary(issue: GitHubIssue): Record<string, unknown> {
+  return {
+    id: issue.id,
+    number: issue.number,
+    title: issue.title,
+    body: issue.body ?? "",
+    state: issue.state,
+    url: issue.html_url,
+    author: issue.user?.login ?? null,
+    createdAt: issue.created_at ?? null,
+    updatedAt: issue.updated_at ?? null,
+  };
+}
+
+function commentSummary(comment: GitHubComment): Record<string, unknown> {
+  return {
+    id: comment.id,
+    body: comment.body ?? "",
+    url: comment.html_url,
+    author: comment.user?.login ?? null,
+    createdAt: comment.created_at ?? null,
+    updatedAt: comment.updated_at ?? null,
+  };
+}
+
+function prSummary(pr: GitHubPullRequest): Record<string, unknown> {
+  return {
+    id: pr.id,
+    number: pr.number,
+    title: pr.title,
+    body: pr.body ?? "",
+    state: pr.state,
+    draft: pr.draft ?? false,
+    url: pr.html_url,
+    author: pr.user?.login ?? null,
+    head: { ref: pr.head?.ref ?? null, sha: pr.head?.sha ?? null },
+    base: { ref: pr.base?.ref ?? null, sha: pr.base?.sha ?? null },
+    createdAt: pr.created_at ?? null,
+    updatedAt: pr.updated_at ?? null,
+  };
+}
+
+async function listIssueComments(token: string, repo: string, issueNumber: number): Promise<GitHubComment[] | GitHubErrorPayload> {
+  const { owner, name } = repoParts(repo);
+  return githubRequest<GitHubComment[]>(token, "GET", `/repos/${owner}/${name}/issues/${issueNumber}/comments?per_page=100`);
+}
+
+async function issueView(repo: string, token: string, issueNumber: number): Promise<GitHubCommandResult> {
+  const { owner, name } = repoParts(repo);
+  const issue = await githubRequest<GitHubIssue>(token, "GET", `/repos/${owner}/${name}/issues/${issueNumber}`);
+  if (isGitHubError(issue)) return { ok: false, command: "issue view", repo, degradedReason: issue.degradedReason, details: issue };
+  const comments = await listIssueComments(token, repo, issueNumber);
+  if (isGitHubError(comments)) return { ok: false, command: "issue view", repo, degradedReason: comments.degradedReason, issue: issueSummary(issue), details: comments };
+  return {
+    ok: true,
+    command: "issue view",
+    repo,
+    issue: issueSummary(issue),
+    comments: comments.map(commentSummary),
+  };
+}
+
+async function issueCreate(repo: string, token: string, options: GitHubOptions): Promise<GitHubCommandResult> {
+  if (options.title === undefined) throw new Error("issue create requires --title <title>");
+  const body = readBodyFile(options.bodyFile, "issue create");
+  if (options.dryRun) return { ok: true, command: "issue create", repo, dryRun: true, ...dryRunBody(repo, options.title, body) };
+  const { owner, name } = repoParts(repo);
+  const issue = await githubRequest<GitHubIssue>(token, "POST", `/repos/${owner}/${name}/issues`, { title: options.title, body });
+  if (isGitHubError(issue)) return { ok: false, command: "issue create", repo, degradedReason: issue.degradedReason, details: issue };
+  return { ok: true, command: "issue create", repo, issue: issueSummary(issue), rest: true };
+}
+
+async function issueEdit(repo: string, token: string, issueNumber: number, options: GitHubOptions): Promise<GitHubCommandResult> {
+  const body = readBodyFile(options.bodyFile, "issue edit");
+  if (options.dryRun) {
+    return {
+      ok: true,
+      command: "issue edit",
+      repo,
+      dryRun: true,
+      issueNumber,
+      ...dryRunBody(repo, options.title, body),
+      wouldPatch: { title: options.title ?? null, bodyFromFile: options.bodyFile },
+    };
+  }
+  const { owner, name } = repoParts(repo);
+  const payload: Record<string, unknown> = { body };
+  if (options.title !== undefined) payload.title = options.title;
+  const issue = await githubRequest<GitHubIssue>(token, "PATCH", `/repos/${owner}/${name}/issues/${issueNumber}`, payload);
+  if (isGitHubError(issue)) return { ok: false, command: "issue edit", repo, degradedReason: issue.degradedReason, details: issue };
+  return { ok: true, command: "issue edit", repo, issue: issueSummary(issue), rest: true };
+}
+
+async function issueComment(repo: string, token: string, issueNumber: number, options: GitHubOptions): Promise<GitHubCommandResult> {
+  const body = readBodyFile(options.bodyFile, "issue comment");
+  if (options.dryRun) return { ok: true, command: "issue comment", repo, dryRun: true, issueNumber, ...dryRunBody(repo, undefined, body) };
+  const { owner, name } = repoParts(repo);
+  const comment = await githubRequest<GitHubComment>(token, "POST", `/repos/${owner}/${name}/issues/${issueNumber}/comments`, { body });
+  if (isGitHubError(comment)) return { ok: false, command: "issue comment", repo, degradedReason: comment.degradedReason, details: comment };
+  return { ok: true, command: "issue comment", repo, comment: commentSummary(comment), rest: true };
+}
+
+async function issueState(repo: string, token: string, issueNumber: number, state: "open" | "closed", dryRun: boolean): Promise<GitHubCommandResult> {
+  if (dryRun) return { ok: true, command: state === "closed" ? "issue close" : "issue reopen", dryRun: true, repo, issueNumber, wouldPatch: { state } };
+  const { owner, name } = repoParts(repo);
+  const issue = await githubRequest<GitHubIssue>(token, "PATCH", `/repos/${owner}/${name}/issues/${issueNumber}`, { state });
+  if (isGitHubError(issue)) return { ok: false, command: state === "closed" ? "issue close" : "issue reopen", repo, degradedReason: issue.degradedReason, details: issue };
+  return { ok: true, command: state === "closed" ? "issue close" : "issue reopen", repo, issue: issueSummary(issue), rest: true };
+}
+
+function escapeSnippet(text: string, index: number): string {
+  const start = Math.max(0, index - 80);
+  const end = Math.min(text.length, index + 120);
+  return text.slice(start, end).replace(/\n/g, "\\n");
+}
+
+function scanText(text: string, patterns: Array<{ kind: string; pattern: RegExp }>): Array<{ kind: string; snippet: string }> {
+  const findings: Array<{ kind: string; snippet: string }> = [];
+  for (const item of patterns) {
+    item.pattern.lastIndex = 0;
+    let match = item.pattern.exec(text);
+    while (match !== null) {
+      findings.push({ kind: item.kind, snippet: escapeSnippet(text, match.index) });
+      if (findings.length >= 5) return findings;
+      match = item.pattern.exec(text);
+    }
+  }
+  return findings;
+}
+
+async function issueScanEscape(repo: string, token: string, limit: number): Promise<GitHubCommandResult> {
+  const { owner, name } = repoParts(repo);
+  const issues = await githubRequest<GitHubIssue[]>(token, "GET", `/repos/${owner}/${name}/issues?state=all&per_page=${limit}`);
+  if (isGitHubError(issues)) return { ok: false, command: "issue scan-escape", repo, degradedReason: issues.degradedReason, details: issues };
+
+  const patterns = [
+    { kind: "literal-backslash-n", pattern: /\\n/g },
+    { kind: "literal-backslash-t", pattern: /\\t/g },
+    { kind: "shell-escaped-newline", pattern: /\\r\\n|\\012|\\x0a/g },
+    { kind: "ansi-escape-literal", pattern: /\\u001b|\\033/g },
+  ];
+
+  const findings: Array<Record<string, unknown>> = [];
+  for (const issue of issues) {
+    for (const finding of scanText(issue.body ?? "", patterns)) {
+      findings.push({ type: "issue", issueNumber: issue.number, id: issue.id, url: issue.html_url, ...finding });
+    }
+    const comments = await listIssueComments(token, repo, issue.number);
+    if (isGitHubError(comments)) {
+      findings.push({ type: "comment-scan-error", issueNumber: issue.number, url: issue.html_url, degradedReason: comments.degradedReason, details: comments });
+      continue;
+    }
+    for (const comment of comments) {
+      for (const finding of scanText(comment.body ?? "", patterns)) {
+        findings.push({ type: "comment", issueNumber: issue.number, id: comment.id, url: comment.html_url, ...finding });
+      }
+    }
+  }
+  return {
+    ok: true,
+    command: "issue scan-escape",
+    repo,
+    scannedIssues: issues.length,
+    findings,
+    note: "Read-only scan; no issue or comment content was modified.",
+  };
+}
+
+async function authStatus(repo: string): Promise<GitHubCommandResult> {
+  const ghPath = ghBinaryPath();
+  const { token, probe } = resolveToken(ghPath !== null);
+  const degraded: GitHubDegradedReason[] = [];
+  if (ghPath === null) degraded.push("missing-binary");
+  if (!probe.present || token === null) {
+    degraded.push("missing-token");
+    return {
+      ok: false,
+      command: "auth status",
+      repo,
+      degradedReason: "missing-token",
+      degraded,
+      gh: { binaryFound: ghPath !== null, path: ghPath },
+      token: probe,
+      probes: { restApi: "skipped", repo: "skipped", issueRead: "skipped" },
+    };
+  }
+
+  const { owner, name } = repoParts(repo);
+  const api = await githubRequest<Record<string, unknown>>(token, "GET", "/rate_limit");
+  if (isGitHubError(api)) {
+    return {
+      ok: false,
+      command: "auth status",
+      repo,
+      degradedReason: api.degradedReason,
+      degraded: [...degraded, api.degradedReason],
+      gh: { binaryFound: ghPath !== null, path: ghPath },
+      token: probe,
+      probes: { restApi: api, repo: "skipped", issueRead: "skipped" },
+    };
+  }
+
+  const repoProbe = await githubRequest<{ full_name?: string; private?: boolean }>(token, "GET", `/repos/${owner}/${name}`);
+  if (isGitHubError(repoProbe)) {
+    return {
+      ok: false,
+      command: "auth status",
+      repo,
+      degradedReason: repoProbe.degradedReason,
+      degraded: [...degraded, repoProbe.degradedReason],
+      gh: { binaryFound: ghPath !== null, path: ghPath },
+      token: probe,
+      probes: { restApi: "ok", repo: repoProbe, issueRead: "skipped" },
+    };
+  }
+
+  const issueProbe = await githubRequest<GitHubIssue[]>(token, "GET", `/repos/${owner}/${name}/issues?per_page=1&state=all`);
+  if (isGitHubError(issueProbe)) {
+    return {
+      ok: false,
+      command: "auth status",
+      repo,
+      degradedReason: issueProbe.degradedReason,
+      degraded: [...degraded, issueProbe.degradedReason],
+      gh: { binaryFound: ghPath !== null, path: ghPath },
+      token: probe,
+      probes: { restApi: "ok", repo: { ok: true, fullName: repoProbe.full_name ?? repo, private: repoProbe.private ?? null }, issueRead: issueProbe },
+    };
+  }
+
+  return {
+    ok: true,
+    command: "auth status",
+    repo,
+    degraded,
+    gh: { binaryFound: ghPath !== null, path: ghPath },
+    token: probe,
+    probes: {
+      restApi: "ok",
+      repo: { ok: true, fullName: repoProbe.full_name ?? repo, private: repoProbe.private ?? null },
+      issueRead: { ok: true, readable: true, sampleCount: issueProbe.length },
+    },
+    restFallback: true,
+  };
+}
+
+async function prList(repo: string, token: string, limit: number): Promise<GitHubCommandResult> {
+  const { owner, name } = repoParts(repo);
+  const prs = await githubRequest<GitHubPullRequest[]>(token, "GET", `/repos/${owner}/${name}/pulls?state=all&per_page=${limit}`);
+  if (isGitHubError(prs)) return { ok: false, command: "pr list", repo, degradedReason: prs.degradedReason, details: prs };
+  return {
+    ok: true,
+    command: "pr list",
+    repo,
+    plannedScope: "first-stage read-only REST support",
+    pullRequests: prs.map(prSummary),
+  };
+}
+
+async function prView(repo: string, token: string, number: number): Promise<GitHubCommandResult> {
+  const { owner, name } = repoParts(repo);
+  const pr = await githubRequest<GitHubPullRequest>(token, "GET", `/repos/${owner}/${name}/pulls/${number}`);
+  if (isGitHubError(pr)) return { ok: false, command: "pr view", repo, degradedReason: pr.degradedReason, details: pr };
+  return {
+    ok: true,
+    command: "pr view",
+    repo,
+    plannedScope: "first-stage read-only REST support",
+    pullRequest: prSummary(pr),
+  };
+}
+
+export function ghHelp(): unknown {
+  return {
+    command: "gh",
+    output: "json",
+    usage: [
+      "bun scripts/cli.ts gh auth status [--repo owner/name]",
+      "bun scripts/cli.ts gh issue view <number> [--repo owner/name]",
+      "bun scripts/cli.ts gh issue create --title <title> --body-file <file> [--repo owner/name] [--dry-run]",
+      "bun scripts/cli.ts gh issue edit <number> --body-file <file> [--title title] [--repo owner/name] [--dry-run]",
+      "bun scripts/cli.ts gh issue comment <number> --body-file <file> [--repo owner/name] [--dry-run]",
+      "bun scripts/cli.ts gh issue close|reopen <number> [--repo owner/name] [--dry-run]",
+      "bun scripts/cli.ts gh issue scan-escape [--repo owner/name] [--limit N]",
+      "bun scripts/cli.ts gh pr list [--repo owner/name] [--limit N]",
+      "bun scripts/cli.ts gh pr view <number> [--repo owner/name]",
+    ],
+    defaults: { repo: DEFAULT_REPO },
+    notes: [
+      "Issue create/edit/comment/close/reopen use GitHub REST and do not require the gh binary when GH_TOKEN or GITHUB_TOKEN is present.",
+      "Token values are never printed; auth status reports only token source and presence.",
+      "--body-file is required for mutating Markdown bodies so real newlines, backticks, and tables are read as file bytes instead of shell arguments.",
+      "Issue body stdin is intentionally unsupported in the first phase; write generated Markdown to a file and pass --body-file.",
+      "PR support is first-stage read-only list/view; create/edit/merge are planned and intentionally unsupported.",
+    ],
+  };
+}
+
+export async function runGhCommand(args: string[]): Promise<GitHubCommandResult | unknown> {
+  const [top, sub, third] = args;
+  if (top === undefined || top === "help" || top === "--help" || top === "-h") return ghHelp();
+  const options = parseOptions(args);
+
+  if (top === "auth" && sub === "status") return authStatus(options.repo);
+
+  if (top === "issue") {
+    if (options.dryRun) {
+      if (sub === "create") return issueCreate(options.repo, "", options);
+      if (sub === "edit") return issueEdit(options.repo, "", parseNumber(third, "issue edit"), options);
+      if (sub === "comment") return issueComment(options.repo, "", parseNumber(third, "issue comment"), options);
+      if (sub === "close") return issueState(options.repo, "", parseNumber(third, "issue close"), "closed", true);
+      if (sub === "reopen") return issueState(options.repo, "", parseNumber(third, "issue reopen"), "open", true);
+    }
+    const { token, probe } = resolveToken(true);
+    const missing = authRequired(options.repo, `issue ${sub ?? ""}`.trim(), probe);
+    if (missing !== null || token === null) return missing ?? authRequired(options.repo, `issue ${sub ?? ""}`.trim(), { present: false, source: null, ghFallbackAttempted: true });
+
+    if (sub === "view") return issueView(options.repo, token, parseNumber(third, "issue view"));
+    if (sub === "create") return issueCreate(options.repo, token, options);
+    if (sub === "edit") return issueEdit(options.repo, token, parseNumber(third, "issue edit"), options);
+    if (sub === "comment") return issueComment(options.repo, token, parseNumber(third, "issue comment"), options);
+    if (sub === "close") return issueState(options.repo, token, parseNumber(third, "issue close"), "closed", options.dryRun);
+    if (sub === "reopen") return issueState(options.repo, token, parseNumber(third, "issue reopen"), "open", options.dryRun);
+    if (sub === "scan-escape") return issueScanEscape(options.repo, token, options.limit);
+  }
+
+  if (top === "pr") {
+    if (sub !== "list" && sub !== "view") {
+      return {
+        ok: false,
+        command: `pr ${sub ?? ""}`.trim(),
+        repo: options.repo,
+        degradedReason: "unsupported-command",
+        planned: true,
+        message: "PR create/edit/comment/merge are planned for a later phase; first-stage support is read-only pr list/view.",
+      };
+    }
+    const { token, probe } = resolveToken(true);
+    const missing = authRequired(options.repo, `pr ${sub}`, probe);
+    if (missing !== null || token === null) return missing ?? authRequired(options.repo, `pr ${sub}`, { present: false, source: null, ghFallbackAttempted: true });
+    if (sub === "list") return prList(options.repo, token, options.limit);
+    return prView(options.repo, token, parseNumber(third, "pr view"));
+  }
+
+  return {
+    ok: false,
+    command: args.join(" ") || "gh",
+    repo: options.repo,
+    degradedReason: "unsupported-command",
+    help: ghHelp(),
+  };
+}

scripts/src/help.ts

@@ -1,3 +1,5 @@
+import { ghHelp } from "./gh";
+
 export function rootHelp(): unknown {
   return {
     entry: "bun scripts/cli.ts",
@@ -41,6 +43,7 @@ export function rootHelp(): unknown {
       { command: "deploy check|plan|apply [--file deploy.json|--env dev|prod] [--service id] [--commit full-sha] [--dry-run] [--force]", description: "Reconcile services from a repo+commit manifest; --env reads origin/master:deploy.json environments and applies supported dev target-side rollouts or reviewed D601 registry artifact consumers. code-queue artifact consumption is dev-only." },
       { command: "dev-env validate|prewarm-images", description: "Validate D601 unidesk-dev guardrails or prewarm dev foundation images into native k3s containerd through a bounded async job." },
       { command: "artifact-registry plan|render|status|health|install|deploy-backend-core|deploy-service", description: "Manage the D601 host-managed CNCF Distribution registry and run pull-only artifact CD for supported services, including D601 direct, k3s-managed, and code-queue dev-only consumers." },
+      { command: "gh auth|issue|pr", description: "Run safe GitHub issue operations through REST with body-file support, token diagnostics, escape scanning, and first-stage read-only PR list/view." },
       { command: "code-agent-sandbox", description: "Independent Code Agent Sandbox service skeleton for adapter, mode, and credential-boundary diagnostics." },
       { command: "schedule list|get|runs|run|delete", description: "Manage backend-core scheduled tasks and run history; schedule run <id> supports --wait-ms N." },
       { command: "schedule upsert-pgdata-backup [--time HH:MM] [--remote-base /SERVER_DATA/UNIDESK_PG_DATA]", description: "Create or update the daily PGDATA physical backup task that uploads monthly rotated archives to Baidu Netdisk." },
@@ -332,5 +335,6 @@ export function staticNamespaceHelp(args: string[]): unknown | null {
   if (top === "e2e") return e2eHelp();
   if (top === "dev-env") return devEnvHelp();
   if (top === "artifact-registry") return artifactRegistryHelp();
+  if (top === "gh") return ghHelp();
   return null;
 }