diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5bb15f0..3e567bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,9 @@ marketplace version bump + update.
   unset ⇒ in-memory only. Hardened against clobbering the persisted blob on a transient read
   failure (#57, #60).
 - **Clear scopes** — remove one scope or all, from the CLI/HTTP or the viewer UI (#49).
+- **Console inbox — workspace-wide read** — `GET /inbox?all=1` aggregates unread human→agent
+  messages across every scope in one call (peek-only; never advances an ack), so an agent can
+  watch the whole workspace instead of polling each board scope-by-scope (#108).
 
 ### Themes & visuals
 - **Theme system** — System / Dark / Light / Midnight / Paper, persisted; React Flow, Vega-Lite,
@@ -60,6 +63,9 @@ marketplace version bump + update.
   handles a malformed viewer response gracefully (#56, #61).
 - **`patch`** — apply incremental ops to a live `flow`/`component`/`panes` view (#58, #81, #82).
 - **`clear`** — remove one scope (`--project`/`--agent`) or `--all` (#49).
+- **`inbox --all`** — aggregate unread console messages across every scope in one call (no
+  `--project`/`--agent`); **`inbox --peek`** — read a scope without consuming it (no ack
+  advance), for non-destructive scans (#108).
 - **`push`** now requires `--description` (the label shown in `list`) (#56).
 - **Default theme is `zinc-dark`** — beautiful-mermaid's light-oriented default rendered node
   labels near-black (invisible on a dark terminal); override with `--theme zinc-light` (#80).
diff --git a/packages/cli/src/cli.ts b/packages/cli/src/cli.ts
index 0be1b3d..8b50849 100644
--- a/packages/cli/src/cli.ts
+++ b/packages/cli/src/cli.ts
@@ -34,8 +34,9 @@ Usage:
   termchart pull [flags]      Fetch a stored view's spec to iterate on (--project --agent [--json])
   termchart list [flags]      List stored views — scope · type · description (--project [--json])
   termchart patch [flags]     Update part of a stored flow/component without re-sending it (--project --agent --node --status / --check <id>/<item> / ops JSON)
-  termchart inbox [flags]     Read the human→agent console for a scope (--project --agent [--since <seq>] [--wait] [--follow] [--json])
+  termchart inbox [flags]     Read the human→agent console for a scope (--project --agent [--since <seq>] [--wait] [--follow] [--peek] [--json])
                               --follow/-f streams messages as they arrive (resilient long-poll, like tail -f; Ctrl-C to stop)
+                              --peek reads without consuming (no ack advance); --all aggregates unread across every scope in one call
   termchart suggest [flags]   Push clickable suggestion chips to the human's console (--project --agent --items '[...]' / --item)
   termchart template <cmd>    Reusable diagram templates: save --project --agent --name | list | get <id> | delete <id>
   termchart board <cmd>       Scheduled boards (auto-refreshing): create | list | show <id> | prompt <id> | scaffold-workflow <id> | delete <id>  (try \`board <cmd> --help\`)
diff --git a/packages/cli/src/inbox.ts b/packages/cli/src/inbox.ts
index d7662a6..c8f5acf 100644
--- a/packages/cli/src/inbox.ts
+++ b/packages/cli/src/inbox.ts
@@ -7,7 +7,7 @@ export interface InboxDeps {
   maxPolls?: number;
 }
 
-interface Args { project?: string; agent?: string; since?: number; wait: boolean; follow: boolean; json: boolean; error?: string; }
+interface Args { project?: string; agent?: string; since?: number; wait: boolean; follow: boolean; json: boolean; peek: boolean; all: boolean; error?: string; }
 
 // Long-poll the server holds for up to ~25s; give fetch a little headroom before we treat it as stuck.
 const WAIT_MS = 25000;
@@ -16,7 +16,7 @@ const BACKOFF_START_MS = 1000;
 const BACKOFF_MAX_MS = 15000;
 
 function parse(argv: string[]): Args {
-  const a: Args = { wait: false, follow: false, json: false };
+  const a: Args = { wait: false, follow: false, json: false, peek: false, all: false };
   const take = (flag: string, set: (v: string) => void, i: number): void => {
     const t = takeValue(argv, i, flag);
     if (t.error) a.error = t.error; else set(t.value!);
@@ -32,6 +32,8 @@ function parse(argv: string[]): Args {
     } else if (arg === "--wait") a.wait = true;
     else if (arg === "--follow" || arg === "-f") a.follow = true;
     else if (arg === "--json") a.json = true;
+    else if (arg === "--peek") a.peek = true;
+    else if (arg === "--all") a.all = true;
     else a.error = `Unknown flag: ${arg}`;
   }
   return a;
@@ -40,6 +42,8 @@ function parse(argv: string[]): Args {
 interface InboxTarget { kind: string; panePath?: number[]; paneTitle?: string; id?: string; label?: string; excerpt?: string; seq?: number; }
 interface InboxEvent { seq: number; ts: number; kind: "message" | "action"; text?: string; ref?: string; target?: InboxTarget; }
 interface InboxResponse { events: InboxEvent[]; cursor: number; }
+interface UnreadScope { project: string; agent: string; scope: string; unread: number; cursor: number; acked: number; events: InboxEvent[]; }
+interface InboxAllResponse { scopes: UnreadScope[]; }
 
 /** One indented context line for a pinned message: where the human pinned it, in spec terms. */
 function fmtTarget(t: InboxTarget): string {
@@ -65,7 +69,9 @@ const sleep = (ms: number) => new Promise<void>((r) => setTimeout(r, ms));
  * console, issue #108). Prints events newer than `--since` and (in the human format) the cursor to
  * poll with next. `--wait` long-polls once so an agent can block on human input; `--follow`/`-f`
  * streams events as they arrive in a resilient loop (long-poll + reconnect/backoff, advancing the
- * cursor itself) — like `tail -f`, until Ctrl-C. `--json` prints raw events. Read is open (URL only,
+ * cursor itself) — like `tail -f`, until Ctrl-C. `--json` prints raw events. `--peek` reads WITHOUT
+ * advancing the ack (a non-consuming scan). `--all` aggregates unread across every scope in one call
+ * (no --project/--agent needed) so an agent can watch the whole workspace. Read is open (URL only,
  * like list/pull); the bearer token is sent if present. Returns an exit code.
  */
 export async function inbox(argv: string[], deps: InboxDeps): Promise<number> {
@@ -74,9 +80,14 @@ export async function inbox(argv: string[], deps: InboxDeps): Promise<number> {
   const token = deps.env.TERMCHART_VIEWER_TOKEN;
   if (a.error) { process.stderr.write(a.error + "\n"); return 3; }
   if (!base) { process.stderr.write(missingConfigMessage(false)); return EXIT_NO_VIEWER; }
-  if (!a.project || !a.agent) { process.stderr.write("--project and --agent are required.\n"); return 3; }
 
   const headers: Record<string, string> = token ? { authorization: `Bearer ${token}` } : {};
+
+  // `--all`: one aggregated call for unread across the whole workspace — the scope flags don't apply.
+  if (a.all) return inboxAll(base, headers, a);
+
+  if (!a.project || !a.agent) { process.stderr.write("--project and --agent are required (or use --all).\n"); return 3; }
+
   const scopeQs = `project=${encodeURIComponent(a.project)}&agent=${encodeURIComponent(a.agent)}`;
 
   if (a.follow) return follow(base, headers, scopeQs, a, deps);
@@ -84,6 +95,7 @@ export async function inbox(argv: string[], deps: InboxDeps): Promise<number> {
   let qs = scopeQs;
   if (a.since !== undefined) qs += `&since=${a.since}`;
   if (a.wait) qs += `&wait=${WAIT_MS}`;
+  if (a.peek) qs += `&peek=1`;
 
   try {
     // When waiting, bound the client a bit beyond the server's hold; a plain read gets the shorter
@@ -119,6 +131,45 @@ export async function inbox(argv: string[], deps: InboxDeps): Promise<number> {
   }
 }
 
+/**
+ * `--all`: one call to GET /inbox?all=1 — the unread events across EVERY scope in the workspace, so
+ * an agent can watch the whole workspace at once instead of polling each scope. Always a peek (never
+ * advances any ack); the agent then does a normal per-scope read to consume + act. Human output is
+ * one block per scope with unread; `--json` prints the raw aggregate.
+ */
+async function inboxAll(base: string, headers: Record<string, string>, a: Args): Promise<number> {
+  try {
+    const r = await fetch(`${base}/inbox?all=1`, { method: "GET", headers });
+    if (!r.ok) {
+      const detail = (await r.text().catch(() => "")).trim();
+      process.stderr.write(`inbox failed: HTTP ${r.status}${detail ? ` — ${detail}` : ""}\n`);
+      return 1;
+    }
+    const data = (await r.json().catch(() => null)) as InboxAllResponse | null;
+    if (!data || !Array.isArray(data.scopes)) {
+      process.stderr.write("inbox failed: unexpected response from viewer\n");
+      return 1;
+    }
+    if (a.json) {
+      process.stdout.write(JSON.stringify(data, null, 2) + "\n");
+      return 0;
+    }
+    for (const s of data.scopes) {
+      process.stdout.write(`${s.scope}  (${s.unread} unread, cursor ${s.cursor})\n`);
+      for (const e of s.events) process.stdout.write(`  ${fmt(e)}\n`);
+    }
+    process.stderr.write(`scopes with unread: ${data.scopes.length}\n`);
+    return 0;
+  } catch (e) {
+    if (isConnError(e)) {
+      process.stderr.write(unreachableMessage(base, e));
+      return EXIT_NO_VIEWER;
+    }
+    process.stderr.write(`inbox failed: ${(e as Error).message}\n`);
+    return 1;
+  }
+}
+
 /**
  * `--follow`: stream inbox events as they arrive. A resilient long-poll loop — on each iteration it
  * long-polls from the current cursor; new events print immediately (and advance the cursor), an empty
diff --git a/packages/cli/test/inbox.test.ts b/packages/cli/test/inbox.test.ts
index de2ad6f..c0f406e 100644
--- a/packages/cli/test/inbox.test.ts
+++ b/packages/cli/test/inbox.test.ts
@@ -100,6 +100,49 @@ describe("inbox", () => {
     expect((await received).path).toBe("/w/ws1/inbox?project=p&agent=a&since=5");
   });
 
+  it("--peek forwards peek=1 (a non-consuming read)", async () => {
+    const { url, received } = await stub(resp);
+    const spy = vi.spyOn(process.stdout, "write").mockImplementation(() => true);
+    const se = vi.spyOn(process.stderr, "write").mockImplementation(() => true);
+    await inbox(["--project", "p", "--agent", "a", "--peek"], { env: env(url) });
+    spy.mockRestore(); se.mockRestore();
+    expect((await received).path).toBe("/w/ws1/inbox?project=p&agent=a&peek=1");
+  });
+
+  it("--all hits /inbox?all=1 (no project/agent) and prints each unread scope + its events", async () => {
+    const allResp = {
+      scopes: [
+        { project: "p", agent: "a", scope: "p/a", unread: 2, cursor: 2, acked: 0, events: [{ seq: 1, ts: 1, kind: "message", text: "a1" }, { seq: 2, ts: 2, kind: "message", text: "a2" }] },
+        { project: "q", agent: "c", scope: "q/c", unread: 1, cursor: 1, acked: 0, events: [{ seq: 1, ts: 1, kind: "action", ref: "rerun" }] },
+      ],
+    };
+    const { url, received } = await stub(allResp);
+    const out: string[] = [];
+    const so = vi.spyOn(process.stdout, "write").mockImplementation((s) => (out.push(String(s)), true));
+    const se = vi.spyOn(process.stderr, "write").mockImplementation(() => true);
+    const code = await inbox(["--all"], { env: env(url) });
+    so.mockRestore(); se.mockRestore();
+    expect(code).toBe(0);
+    expect((await received).path).toBe("/w/ws1/inbox?all=1");
+    const printed = out.join("");
+    expect(printed).toContain("p/a");
+    expect(printed).toContain("a1");
+    expect(printed).toContain("q/c");
+    expect(printed).toContain("rerun");
+  });
+
+  it("--all --json prints the raw aggregate", async () => {
+    const allResp = { scopes: [{ project: "p", agent: "a", scope: "p/a", unread: 1, cursor: 1, acked: 0, events: [{ seq: 1, ts: 1, kind: "message", text: "x" }] }] };
+    const { url } = await stub(allResp);
+    const out: string[] = [];
+    const so = vi.spyOn(process.stdout, "write").mockImplementation((s) => (out.push(String(s)), true));
+    const se = vi.spyOn(process.stderr, "write").mockImplementation(() => true);
+    const code = await inbox(["--all", "--json"], { env: env(url) });
+    so.mockRestore(); se.mockRestore();
+    expect(code).toBe(0);
+    expect(JSON.parse(out.join("")).scopes).toHaveLength(1);
+  });
+
   it("--wait long-polls (sends wait= and returns the events that arrive)", async () => {
     const { url, received } = await stub({ events: [{ seq: 3, ts: 9, kind: "message", text: "late" }], cursor: 3 });
     const out: string[] = [];
diff --git a/packages/viewer/src/server.ts b/packages/viewer/src/server.ts
index f2ccc9c..fb4692f 100644
--- a/packages/viewer/src/server.ts
+++ b/packages/viewer/src/server.ts
@@ -847,9 +847,20 @@ export function createViewerServer(opts: ServerOpts) {
     // then return (possibly empty). Cleanup is leak-proof: the waiter is unregistered and the timer
     // cleared on resolve, on the wait timeout, AND on client disconnect (`req.on("close")`).
     if (req.method === "GET" && action === "inbox") {
+      // `?all=1`: aggregate unread across EVERY scope in the workspace in one call — so an agent can
+      // watch the whole workspace instead of polling each scope. Always a PEEK (never advances any
+      // ack: you can't sensibly consume many scopes at once); the agent then does a normal per-scope
+      // read to consume + act. Returns only scopes that have unread, each with its unread events.
+      if (url.searchParams.get("all") === "1") {
+        const scopes = inboxStore.unreadByScope(wsid).map((s) => {
+          const sl = s.scope.indexOf("/");
+          return { project: s.scope.slice(0, sl), agent: s.scope.slice(sl + 1), ...s };
+        });
+        return send(res, 200, JSON.stringify({ scopes }), "application/json");
+      }
       const project = url.searchParams.get("project");
       const agent = url.searchParams.get("agent");
-      if (!project || !agent) return send(res, 400, "inbox needs ?project=&agent=");
+      if (!project || !agent) return send(res, 400, "inbox needs ?project=&agent= (or ?all=1)");
       const scope = `${project}/${agent}`;
       const since = Math.max(0, Number(url.searchParams.get("since") ?? "0") | 0);
       const waitRaw = Number(url.searchParams.get("wait") ?? "0");
diff --git a/packages/viewer/src/state.ts b/packages/viewer/src/state.ts
index dfdb8b8..db68ef2 100644
--- a/packages/viewer/src/state.ts
+++ b/packages/viewer/src/state.ts
@@ -254,6 +254,23 @@ export class InboxStore {
     return s ? Math.max(0, s.seq - s.acked) : 0;
   }
 
+  /**
+   * Every scope in this workspace that has unread events, with its unread events (those with
+   * `seq > acked`), unread count, cursor, and ack. PEEK semantics — does NOT advance any ack — so
+   * an agent can watch the WHOLE workspace with one call (GET /inbox?all=1) instead of polling each
+   * scope, then do a normal per-scope read to consume + act. Scopes with nothing unread are omitted.
+   */
+  unreadByScope(wsid: string): { scope: string; unread: number; cursor: number; acked: number; events: InboxEvent[] }[] {
+    const scopes = this.ws.get(wsid);
+    if (!scopes) return [];
+    const out: { scope: string; unread: number; cursor: number; acked: number; events: InboxEvent[] }[] = [];
+    for (const [scope, s] of scopes) {
+      const unread = Math.max(0, s.seq - s.acked);
+      if (unread > 0) out.push({ scope, unread, cursor: s.seq, acked: s.acked, events: s.events.filter((e) => e.seq > s.acked) });
+    }
+    return out;
+  }
+
   /** Unread events the agent hasn't yet been NUDGED about (`seq − max(acked, notified)`). The
    *  push/patch/status nudge uses this so it fires only on NEW messages — not re-announcing the same
    *  stale backlog on every write (the "inbox heartbeat" that was annoying when nothing was new). */
diff --git a/packages/viewer/test/server.test.ts b/packages/viewer/test/server.test.ts
index 9960c67..d0e0fdd 100644
--- a/packages/viewer/test/server.test.ts
+++ b/packages/viewer/test/server.test.ts
@@ -772,6 +772,32 @@ describe("viewer server", () => {
       expect((await fetch(`${base}/w/ws1/inbox`)).status).toBe(400);
     });
 
+    it("GET inbox?all=1 aggregates unread across every scope (peek-only — no ack advance)", async () => {
+      await inboxReq({ project: "p", agent: "a", kind: "message", text: "a1" });
+      await inboxReq({ project: "p", agent: "a", kind: "message", text: "a2" });
+      await inboxReq({ project: "p", agent: "b", kind: "message", text: "b1" });
+      await inboxReq({ project: "q", agent: "c", kind: "action", ref: "rerun" });
+      await getJson("inbox?project=q&agent=c"); // consume q/c → it should drop out of the aggregate
+
+      const got = await getJson("inbox?all=1");
+      expect(got.status).toBe(200);
+      const scopes = (got.body as { scopes: { project: string; agent: string; scope: string; unread: number; cursor: number; events: { text?: string }[] }[] }).scopes;
+      const byScope = Object.fromEntries(scopes.map((s) => [s.scope, s]));
+      expect(Object.keys(byScope).sort()).toEqual(["p/a", "p/b"]); // q/c was read → omitted
+      expect(byScope["p/a"]).toMatchObject({ project: "p", agent: "a", unread: 2, cursor: 2 });
+      expect(byScope["p/a"].events.map((e) => e.text)).toEqual(["a1", "a2"]);
+
+      // The aggregate is a peek: it must NOT have consumed p/a, so a later push still nudges.
+      const r = await push({ project: "p", agent: "a", type: "mermaid", content: "graph LR\n A-->B" });
+      expect(r.headers.get("x-termchart-inbox-unread")).toBe("2");
+    });
+
+    it("GET inbox?all=1 returns an empty list when nothing is unread", async () => {
+      const got = await getJson("inbox?all=1");
+      expect(got.status).toBe(200);
+      expect(got.body).toEqual({ scopes: [] });
+    });
+
     it("nudges via x-termchart-inbox-unread ONCE on new messages, not as a heartbeat on every write", async () => {
       // Fresh scope: the human has typed nothing → no nudge header.
       const r0 = await push({ project: "p", agent: "a", type: "mermaid", content: "graph LR\n A-->B" });
diff --git a/packages/viewer/test/state.test.ts b/packages/viewer/test/state.test.ts
index 87dc3b2..a570d2f 100644
--- a/packages/viewer/test/state.test.ts
+++ b/packages/viewer/test/state.test.ts
@@ -182,6 +182,37 @@ describe("InboxStore", () => {
     expect(s.unread("w1", "p/a")).toBe(0);
   });
 
+  it("unreadByScope aggregates every scope with unread (peek — no ack advance), omitting read ones", () => {
+    const s = new InboxStore();
+    expect(s.unreadByScope("w1")).toEqual([]); // empty workspace
+    s.append("w1", "p/a", { kind: "message", text: "a1" });
+    s.append("w1", "p/a", { kind: "message", text: "a2" });
+    s.append("w1", "p/b", { kind: "message", text: "b1" });
+    s.append("w1", "p/c", { kind: "message", text: "c1" });
+    s.markReadTo("w1", "p/c", 4); // c is fully read → omitted
+    s.append("w2", "p/a", { kind: "message", text: "other-ws" }); // a different workspace is isolated
+
+    const got = s.unreadByScope("w1");
+    expect(got.map((x) => x.scope).sort()).toEqual(["p/a", "p/b"]);
+    const a = got.find((x) => x.scope === "p/a")!;
+    expect(a).toMatchObject({ scope: "p/a", unread: 2, cursor: 2, acked: 0 });
+    expect(a.events.map((e) => e.text)).toEqual(["a1", "a2"]);
+
+    // Peek must NOT advance the ack — the scope is still unread afterwards.
+    expect(s.unread("w1", "p/a")).toBe(2);
+  });
+
+  it("unreadByScope returns only events past the ack for a partially-read scope", () => {
+    const s = new InboxStore();
+    s.append("w1", "p/a", { kind: "message", text: "old" }); // seq 1
+    s.markReadTo("w1", "p/a", 1);
+    s.append("w1", "p/a", { kind: "message", text: "new" }); // seq 2, unread
+    const got = s.unreadByScope("w1");
+    expect(got).toHaveLength(1);
+    expect(got[0]).toMatchObject({ scope: "p/a", unread: 1, cursor: 2, acked: 1 });
+    expect(got[0].events.map((e) => e.text)).toEqual(["new"]);
+  });
+
   it("stores + replaces suggestion chips", () => {
     const s = new InboxStore();
     s.setSuggestions("w1", "p/a", [{ id: "x", label: "X" }]);