feat: show issue labels in issue view and add its --fields flag

`issue view` rendered state but never labels, and offered no way to add
them — so reading one issue's labels forced a detour through
`issue list --fields labels` and hunting the matching row. The benchmark
transcripts showed agents paying this round-trip on every labels/state
read.

Show labels by default in the detail view (a detail view should be
complete), and add a `--fields` flag mirroring `issue list` / `search`
to append assignees, closedAt, milestone, updatedAt, url on request.

Also strengthen SKILL.md against the two command-discovery round-trips
the transcripts exposed: name the required `search issues` / `search prs`
subcommand form (a bare `search "<query>"` is invalid), and point agents
straight at `issue view <n>` for a single issue's fields.

Verified live: read-issue-labels-and-state dropped from 10 turns to 4
(cache-read ~3.3x lower), the transcript reduced to three clean commands
with the search-help and issue-list round-trips gone.

skills/gitea-axi/SKILL.md

@@ -33,9 +33,12 @@ So outside a checkout with the token in the environment, `gitea-axi <command> -R
 - `issue` — list, view, create, comment on, edit, close/reopen, pin, and link issues.
 - `pr` — create, view, comment on, edit, review, merge, check out, diff, and inspect the checks of pull requests.
 - `label` — list, create, edit, and delete labels.
-- `search` — full-text search across issues and pull requests.
+- `search` — full-text search; it takes a subcommand, so search issues with `search issues "<query>"` and pull requests with `search prs "<query>"` (a bare `search "<query>"` is not valid).
 - `setup` — install this skill (`setup`) and, opt-in, the SessionStart dashboard hook (`setup hooks`).
 
+To read one issue's fields, reach straight for `issue view <number>`: it shows labels and state by default, and takes `--fields assignees,milestone,…` for the rest.
+You rarely need `issue list` to answer a question about a single issue.
+
 ## Discovery
 
 This skill is a pointer, not a command reference — the CLI is the single source of truth for its own interface.

src/commands/issue.ts

@@ -222,8 +222,11 @@ Show a single issue. Pull request numbers are rejected — use \`pr view\` inste
 flags:
   --comments   Render every comment in full (bodies truncated at 800 chars)
   --full       Suppress all truncation of the issue body and comment bodies
+  --fields <a,b,c>  Append extra fields: assignees, closedAt, milestone, updatedAt, url
   --help       Show this help
 
+Labels are shown by default; use --fields to add assignees, milestone, and more.
+
 global flags:
   -R, --repo <OWNER/NAME>     Override the repository detected from the git origin remote
   --login <name>              Select a tea login profile by name
@@ -479,19 +482,32 @@ const ISSUE_VIEW_FIELDS: FieldDef<Issue>[] = [
   pluck("number"),
   pluck("title"),
   lowercased("state"),
+  joined("labels", "labels", "name"),
   pluck("author", "user.login"),
   relativeTimeField("created", "created_at"),
 ];
 
+// Appended to the default view fields on request via `--fields`, never replacing
+// them. Labels and body are shown by default, so they are not offered here.
+const ISSUE_VIEW_EXTRA_FIELDS: Record<string, FieldDef<Issue>> = {
+  assignees: joined("assignees", "assignees", "login"),
+  closedAt: relativeTimeField("closedAt", "closed_at"),
+  milestone: pluck("milestone", "milestone.title"),
+  updatedAt: relativeTimeField("updatedAt", "updated_at"),
+  url: pluck("url", "html_url"),
+};
+
 interface IssueDetailOptions {
   host: string;
   full: boolean;
   withComments: boolean;
   now: Date;
+  /** Extra fields selected via `--fields`, appended after the defaults. */
+  extraFields: FieldDef<Issue>[];
 }
 
 function buildIssueDetail(issue: Issue, options: IssueDetailOptions): Record<string, unknown> {
-  const row = extractRow(issue, ISSUE_VIEW_FIELDS, {
+  const row = extractRow(issue, [...ISSUE_VIEW_FIELDS, ...options.extraFields], {
     now: options.now,
     host: options.host,
     full: options.full,
@@ -539,12 +555,21 @@ async function issueView(deps: CliDeps, args: string[]): Promise<string> {
   }
   const { flags, positionals } = parseFlags(
     args,
-    { "--comments": { takesValue: false }, "--full": { takesValue: false } },
+    {
+      "--comments": { takesValue: false },
+      "--full": { takesValue: false },
+      "--fields": { takesValue: true },
+    },
     "issue view",
   );
   const number = parsePositionalNumber(positionals, "issue view", "issue");
   const full = flags["--full"] === true;
   const withComments = flags["--comments"] === true;
+  const extraFields = selectExtraFields(
+    flagValue(flags, "--fields"),
+    ISSUE_VIEW_EXTRA_FIELDS,
+    "issue view",
+  );
 
   const context = await resolveRepoContext(deps);
   const api = createClient(context);
@@ -557,7 +582,7 @@ async function issueView(deps: CliDeps, args: string[]): Promise<string> {
   }
 
   const now = new Date();
-  const item = buildIssueDetail(issue, { host: context.host, full, withComments, now });
+  const item = buildIssueDetail(issue, { host: context.host, full, withComments, now, extraFields });
 
   const blocks: DetailBlock[] = [];
   if (withComments) {

test/issue-view.test.ts

@@ -47,6 +47,46 @@ describe("issue view", () => {
     expect(stdout).toContain("comment_count: 3 — use --comments to see full comments");
   });
 
+  it("renders the issue's labels comma-joined by default, with no flag", async () => {
+    server = await startFixtureServer([
+      {
+        method: "GET",
+        path: ISSUE_PATH,
+        body: issueBody({ labels: [{ name: "bug" }, { name: "regression" }] }),
+      },
+    ]);
+    const { stdout, exitCode } = await runCliTest(["issue", "view", "42"], {
+      env: testModeEnv(server.url),
+    });
+
+    expect(exitCode).toBe(0);
+    // TOON-quoted because the joined value contains a comma.
+    expect(stdout).toContain('labels: "bug, regression"');
+  });
+
+  it("appends named extra fields with --fields on top of the default fields", async () => {
+    server = await startFixtureServer([
+      {
+        method: "GET",
+        path: ISSUE_PATH,
+        body: issueBody({
+          assignees: [{ login: "alexion" }],
+          milestone: { title: "v2.0" },
+        }),
+      },
+    ]);
+    const { stdout, exitCode } = await runCliTest(
+      ["issue", "view", "42", "--fields", "assignees,milestone"],
+      { env: testModeEnv(server.url) },
+    );
+
+    expect(exitCode).toBe(0);
+    // Default fields are still present; the extra fields are appended.
+    expect(stdout).toContain("state: open");
+    expect(stdout).toContain("assignees: alexion");
+    expect(stdout).toContain("milestone: v2.0");
+  });
+
   it("renders comment_count: 0 when there are no comments", async () => {
     server = await startFixtureServer([
       { method: "GET", path: ISSUE_PATH, body: issueBody({ comments: 0 }) },