diff --git a/harbor/cli.py b/harbor/cli.py
index fc74c06..4a1c1bf 100644
--- a/harbor/cli.py
+++ b/harbor/cli.py
@@ -255,7 +255,7 @@ def build_parser():
     p = sub.add_parser("who", help="who has worked on a scope (notes, reviews, claims, messages)")
     p.add_argument("scope")
     p = sub.add_parser("re", help="reverse-engineering lookups from the project's image and annotations")
-    p.add_argument("action", choices=["disasm", "xrefs", "bytes", "lookup", "ghidra", "ghidra-tools", "debugger-tools", "match", "similar", "struct-audit", "behaviour"])
+    p.add_argument("action", choices=["disasm", "xrefs", "bytes", "lookup", "summary", "ghidra", "ghidra-tools", "ghidra-check", "debugger-tools", "match", "similar", "struct-audit", "behaviour"])
     p.add_argument("target", nargs="?", default="", help="an address (0x4AD850) or a name; for ghidra, the tool")
     p.add_argument("arguments", nargs="?", default="{}", help="ghidra: the tool's arguments as JSON")
     p.add_argument("--decomp", help="match: the checkout or worktree to compile from")
@@ -722,6 +722,21 @@ def main(argv=None):
         elif args.action == "ghidra-tools":
             res = Ghidra(harbor.project.reverse).tools()
             out(res, "\n".join(f"{t['name']:<26} {t['description'].splitlines()[0][:90]}" for t in res))
+        elif args.action == "ghidra-check":
+            from .reverse import ghidra_check
+            res = ghidra_check(harbor.project.reverse)
+            mark = lambda ok: "ok  " if ok else ("??  " if ok is None else "FAIL")
+            out(res, "\n".join(
+                [f"{'Ghidra serves our program' if res['ok'] else 'Ghidra does NOT serve our program'}: "
+                 f"{res['program']} ({res['functions_in_ghidra']} functions); image {res['image_base']}, "
+                 f"{res['image_size']} bytes, sha256 {res['image_sha256'][:16]}..."] +
+                [f"  {mark(c['ok'])} {c['check']}: " + (f"expected {c['expected']}, Ghidra {c['ghidra']}" if "ghidra" in c
+                                                        else ("differs at " + ", ".join(c["differ_at"]) if c.get("differ_at") else "all equal"))
+                 for c in res["checks"]]))
+        elif args.action == "summary":
+            from .reverse import format_summary
+            res = r.summary(args.target)
+            out(res, format_summary(res))
         elif args.action == "ghidra":
             text = Ghidra(harbor.project.reverse).call(args.target, json.loads(args.arguments))
             out({"result": text}, text)
diff --git a/harbor/mcp_server.py b/harbor/mcp_server.py
index 139af26..f677085 100644
--- a/harbor/mcp_server.py
+++ b/harbor/mcp_server.py
@@ -38,6 +38,8 @@ review queue, presence and stop flags. Protocol:
 10. Before your session ends or your allowance runs out, write handoff(): finished, in flight, next.
 11. To read the original machine code use re_disassemble, re_xrefs, re_bytes and re_lookup: they read the project's
     own image with the team's current names, so do not write your own disassembler or offset maths.
+    re_summary(address) gives the overview in one call: name, prototype, size, convention, readable status,
+    callers and callees with their status, globals, strings, vtable slots and the Mac/Xbox hints.
     For Ghidra's view (decompiler, p-code, stack frames, struct field references, types) use ghidra_tools() once,
     then ghidra(tool, arguments): one shared read-only Ghidra session holding the team's annotations.
     To check a value in the running game (x87 control word, `this`, struct fields), use debugger_tools() and
@@ -563,6 +565,14 @@ def re_lookup(target: str) -> dict:
     return _re(lambda r: r.lookup(target))
 
 
+@mcp.tool
+def re_summary(target: str) -> dict:
+    """One call before starting on a function: its current name and prototype, size and calling convention (read
+    from the bytes), whether it is readable on main, its callers and callees with their names and whether each is
+    readable on main, the globals and strings it uses, the vtable slots it fills, and the Mac/Xbox name hints."""
+    return _re(lambda r: r.summary(target))
+
+
 _ghidra = {}
 
 
@@ -692,6 +702,17 @@ def ghidra_tools() -> list:
     return _gh(lambda g: g.tools())
 
 
+@mcp.tool()
+def ghidra_check() -> dict:
+    """Is the shared Ghidra session serving our program? Compares its address range with the project image's base
+    and size, the SHA-256 of the file it imported with ours, and sample bytes; ok is false when any differs."""
+    try:
+        from .reverse import ghidra_check as check
+        return check(harbor().project.reverse)
+    except (HarborError, projects.ProjectError) as error:
+        raise ToolError(str(error)) from None
+
+
 @mcp.tool()
 def ghidra(tool: str, arguments: dict | None = None) -> str:
     """Run one tool in the shared read-only Ghidra session, e.g. ghidra('get_code', {'function': 'GetFogLevel',
diff --git a/harbor/reverse.py b/harbor/reverse.py
index f7ebc14..cee68c8 100644
--- a/harbor/reverse.py
+++ b/harbor/reverse.py
@@ -7,6 +7,8 @@ Configured per project in a [reverse] table:
     imports = 'R:/.../imports.json'   optional: [{module, name, slot}]
     annotations = 'R:/.../annotations' names.csv, functions.csv, globals.csv, prototypes.h
     src = 'R:/.../src'                optional: the decompiled C files (<ADDR>_<Name>.c)
+    sections = 'R:/.../sections.json' optional: [{name, start, end}] (default: sections.json beside the image),
+                                      used to find the vtables and pointer tables a function sits in
 
 Every answer comes from those files, read fresh when they change, so the agents see the team's current names.
 Nothing here writes anything."""
@@ -42,6 +44,7 @@ class Reverse:
         self.conventions_path = Path(config["conventions"]) if config.get("conventions") else None
         self.source_files = Path(config["source_files"]) if config.get("source_files") else None
         self.mac_names = Path(config["mac_names"]) if config.get("mac_names") else None
+        self.sections_path = Path(config["sections"]) if config.get("sections") else None
         self._cache = {}
 
     # ----------------------------------------------------------------- loading (cached by file mtime)
@@ -491,6 +494,176 @@ class Reverse:
                 break
         return out
 
+    # ----------------------------------------------------------------- one-call summary
+    def _src_index(self):
+        """address -> path of src/**/<ADDR>_<Name>.c (one directory walk, reused for 30 seconds)."""
+        import time
+        hit = self._cache.get("src_index")
+        if hit and time.monotonic() - hit[0] < 30:
+            return hit[1]
+        out = {}
+        if self.src and self.src.exists():
+            for folder, _, files in os.walk(self.src):
+                for name in files:
+                    m = re.match(r"([0-9A-Fa-f]{6,8})_.*\.c$", name)
+                    if m:
+                        out.setdefault(int(m.group(1), 16), Path(folder) / name)
+        self._cache["src_index"] = (time.monotonic(), out)
+        return out
+
+    def status_of(self, addr):
+        """The decompiled file's status on main ('readable', 'raw', ...), or None when there is no file."""
+        path = self._src_index().get(addr)
+        if not path:
+            return None
+        try:
+            with path.open(encoding="utf-8", errors="replace") as f:
+                head = [next(f, "") for _ in range(8)]
+        except OSError:
+            return None
+        return next((l.split("status:", 1)[1].strip() for l in head if "status:" in l), "raw")
+
+    def _sections(self):
+        """[(name, start, end)] from sections.json beside the image (or [reverse] sections), else []."""
+        path = self.sections_path or self.image.with_name("sections.json")
+        return self._load("sections", path, lambda p: [
+            (s["name"], _int(s["start"]), _int(s["end"])) for s in json.loads(p.read_text(encoding="utf-8"))] if p else [])
+
+    def _code_data_refs(self):
+        facts = self._facts()
+        key = ("data_refs", id(facts))
+        if key not in self._cache:
+            self._cache[key] = {_int(a) for d in facts.values() for a in d.get("data", [])}
+        return self._cache[key]
+
+    def _mac_vtables(self):
+        return self._load("mac_vtables", self.mac_names.with_name("vtables.csv") if self.mac_names else None,
+                          lambda p: {int(r["pc_vtable"], 16): r.get("class") for r in
+                                     csv.DictReader(p.read_text(encoding="utf-8").splitlines())
+                                     if (r.get("pc_vtable") or "").startswith("0x")} if p else {})
+
+    def vtable_slots(self, addr):
+        """Where the function's address sits in a table of code pointers outside .text: the table start (walked back
+        over function addresses to the entry the code references), the slot index, and what the table is."""
+        data = self._bytes()
+        facts = self._facts()
+        sections = self._sections()
+        text = next(((lo, hi) for name, lo, hi in sections if name == ".text"), None)
+        tables = [(lo, hi) for name, lo, hi in sections if name in (".rdata", ".data")]
+        if not tables:                                     # no section list: everything past the last function
+            end = max((a + int(d.get("size") or 0) for a, d in facts.items()), default=self.base)
+            tables = [(end, self.base + len(data))]
+        refs, mac = self._code_data_refs(), self._mac_vtables()
+        is_code = (lambda v: v in facts) if facts else (lambda v: text and text[0] <= v < text[1])
+        needle = struct.pack("<I", addr)
+        out = []
+        for lo, hi in tables:
+            pos = data.find(needle, max(0, lo - self.base), hi - self.base)
+            while pos >= 0 and len(out) < 40:
+                if pos % 4 == 0:
+                    start = pos
+                    while start - 4 >= lo - self.base and (start + self.base) not in refs and \
+                            (start + self.base) not in mac and \
+                            is_code(struct.unpack_from("<I", data, start - 4)[0]) and pos - start < 4 * 400:
+                        start -= 4
+                    table = start + self.base
+                    slot = (pos - start) // 4
+                    name = self.name_of(table)
+                    kind = "vtable" if table in refs or table in mac or (name and "vtable" in name.lower()) \
+                        else "pointer table"
+                    out.append({"table": f"0x{table:X}", "slot": slot, "offset": f"0x{slot * 4:X}", "kind": kind,
+                                **({"table_name": name} if name else {}),
+                                **({"mac_class": mac[table]} if table in mac else {})})
+                pos = data.find(needle, pos + 1, hi - self.base)
+        return out
+
+    def summary(self, target):
+        """Everything a worker needs before starting on a function, in one call: name, prototype, size, convention,
+        whether it is readable on main, callers and callees (named, with their status on main), globals and strings,
+        the vtable slots it fills, and the Mac/Xbox name hints."""
+        addr = self.resolve(target)
+        func = self.function_at(addr)
+        if not func:
+            raise HarborError(f"0x{addr:X} is not inside a known function")
+        start, size, name = func
+        d = self._facts()[start]
+
+        def fn(a):
+            status = self.status_of(a)
+            return {"address": f"0x{a:X}", "name": self.name_of(a), "status": status or "no file",
+                    "readable": status == "readable"}
+
+        out = {"address": f"0x{start:X}", "name": name, "size": size, "end": f"0x{start + size:X}"}
+        if addr != start:
+            out["asked"] = f"0x{addr:X} (+0x{addr - start:X})"
+        proto = self._prototypes().get(name) if name else None
+        out["prototype"] = proto
+        conv = self.convention(start)
+        out["convention"] = conv["summary"] if conv else None
+        if conv:
+            out["registers_in"], out["ret_pops"] = conv["registers_in"], conv["ret_pops"]
+        status = self.status_of(start)
+        out["status"] = status or "no file"
+        out["readable"] = status == "readable"
+        path = self._src_index().get(start)
+        if path and self.src:
+            out["file"] = str(path.relative_to(self.src.parent)).replace(os.sep, "/")
+        row = self._csv("names.csv").get(start)
+        if row and len(row) > 3 and row[3]:
+            out["note"] = row[3] if len(row[3]) < 600 else row[3][:600] + "..."
+        callers = sorted(set(self._callers().get(start, [])))
+        callees = list(dict.fromkeys(_int(a) for a in d.get("calls", [])))
+        out["callers"] = [fn(a) for a in callers]
+        out["callees"] = [fn(a) for a in callees]
+        if d.get("imports"):
+            out["imports"] = d["imports"]
+        glob = self._csv("globals.csv")
+        out["globals"] = [{"address": f"0x{a:X}", "name": self.name_of(a),
+                           **({"type": glob[a][2]} if a in glob and len(glob[a]) > 2 and glob[a][2] else {})}
+                          for a in dict.fromkeys(_int(x) for x in d.get("data", []))]
+        out["strings"] = d.get("strings", [])
+        out["vtable_slots"] = self.vtable_slots(start)
+        out["hints"] = self.origins(start)
+        out["counts"] = {"callers": len(callers), "callers_readable": sum(c["readable"] for c in out["callers"]),
+                         "callees": len(callees), "callees_readable": sum(c["readable"] for c in out["callees"])}
+        return out
+
+
+def format_summary(s):
+    """Reverse.summary() as text for the command line."""
+    mark = lambda f: f"{f['address']} {f['name'] or '(unnamed)'} [{'readable' if f['readable'] else f['status']}]"
+    lines = [f"{s['name'] or '(unnamed)'} {s['address']}..{s['end']} ({s['size']} bytes)"
+             + (f", asked {s['asked']}" if s.get("asked") else ""),
+             f"status on main: {s['status']}" + (f" ({s['file']})" if s.get("file") else ""),
+             f"convention: {s['convention'] or 'unknown'}",
+             "prototype: " + (s["prototype"] or "none in prototypes.h")]
+    c = s["counts"]
+    lines.append(f"callers ({c['callers']}, {c['callers_readable']} readable):")
+    lines += [f"  {mark(f)}" for f in s["callers"]] or ["  none"]
+    lines.append(f"callees ({c['callees']}, {c['callees_readable']} readable):")
+    lines += [f"  {mark(f)}" for f in s["callees"]] or ["  none"]
+    if s.get("imports"):
+        lines.append("imports: " + ", ".join(s["imports"]))
+    lines.append(f"globals ({len(s['globals'])}):")
+    lines += [f"  {g['address']} {g['name'] or '(unnamed)'}" + (f" : {g['type']}" if g.get("type") else "")
+              for g in s["globals"]] or ["  none"]
+    if s["strings"]:
+        lines.append("strings: " + ", ".join(repr(x) for x in s["strings"]))
+    lines.append("vtable slots:" + ("" if s["vtable_slots"] else " none"))
+    lines += [f"  {v['kind']} {v['table']}" + (f" {v['table_name']}" if v.get("table_name") else "")
+              + (f" (Mac class {v['mac_class']})" if v.get("mac_class") else "") + f" slot {v['slot']} (+{v['offset']})"
+              for v in s["vtable_slots"]]
+    h = s["hints"]
+    if h.get("mac_name"):
+        lines.append(f"Mac name: {h['mac_name'].get('demangled')} ({h['mac_name'].get('confidence')})")
+    if h.get("source_file"):
+        sf = h["source_file"]
+        lines.append(f"Xbox source file: {sf.get('source_file')}" + (f" lines {sf['lines']}" if sf.get("lines") else "")
+                     + f" ({sf.get('confidence')})")
+    if not h:
+        lines.append("Mac/Xbox hints: none")
+    return "\n".join(lines)
+
 
 class Ghidra:
     """A small client for the shared, read-only Ghidra MCP server (GhidrAssistMCP over streamable HTTP), so every
@@ -572,6 +745,63 @@ class Ghidra:
         return re.sub(r"^\[Context\] Operating on: [^\n]*\n+", "", text)
 
 
+def _hexdump_bytes(text):
+    """The bytes of a GhidrAssistMCP get_data_at hexdump ('401000  53 55 8b ...  |SU.|')."""
+    out = bytearray()
+    for line in text.splitlines():
+        m = re.match(r"^\s*[0-9A-Fa-f]{4,16}\s{2}((?:[0-9A-Fa-f]{2}\s{1,2})+)", line + " ")
+        if m:
+            out += bytes.fromhex("".join(m.group(1).split()))
+    return bytes(out)
+
+
+def ghidra_check(config, samples=16, sample_len=128):
+    """Is the shared Ghidra server serving our program? Read-only: compares the program's address range with the
+    project image (base and size), the SHA-256 of the file Ghidra imported (when that path is readable here) with
+    the image's, and sample bytes read through Ghidra (get_data_at) with the image at spread-out addresses."""
+    import hashlib
+    reverse = Reverse(config)
+    image = reverse._bytes()
+    if not image:
+        raise HarborError(f"the project image {reverse.image} is missing")
+    base = reverse.base
+    g = Ghidra(config)
+    info = g.call("get_binary_info", {})
+    binaries = g.call("list_binaries", {})
+    field = lambda label, text: (re.search(rf"^\s*{label}:\s*(.+?)\s*$", text, re.M) or [None, None])[1]
+    lo, hi = field("Min Address", info), field("Max Address", info)
+    checks = []
+    want_lo, want_hi = base, base + len(image) - 1
+    got = (int(lo, 16), int(hi, 16)) if lo and hi else None
+    checks.append({"check": "address range", "ok": got == (want_lo, want_hi),
+                   "expected": f"0x{want_lo:X}..0x{want_hi:X} ({len(image)} bytes)",
+                   "ghidra": f"0x{got[0]:X}..0x{got[1]:X} ({got[1] - got[0] + 1} bytes)" if got else info.strip()[:200]})
+    sha = hashlib.sha256(image).hexdigest()
+    exe = field("Executable Path", binaries)
+    local = Path(exe[1:] if exe and re.match(r"^/[A-Za-z]:/", exe) else exe) if exe else None
+    if local and local.is_file():
+        theirs = hashlib.sha256(local.read_bytes()).hexdigest()
+        checks.append({"check": "sha256 of the imported file", "ok": theirs == sha, "expected": sha,
+                       "ghidra": theirs, "file": str(local)})
+    else:
+        checks.append({"check": "sha256 of the imported file", "ok": None, "expected": sha,
+                       "ghidra": f"not readable here ({exe or 'no path reported'})"})
+    step = max(sample_len, (len(image) - sample_len) // max(1, samples - 1)) & ~0xF
+    bad = []
+    for i in range(samples):
+        addr = base + min(i * step, len(image) - sample_len)
+        theirs = _hexdump_bytes(g.call("get_data_at", {"address": f"0x{addr:X}", "len": sample_len}))
+        ours = image[addr - base:addr - base + sample_len]
+        if theirs != ours:
+            bad.append(f"0x{addr:X}")
+    checks.append({"check": f"{samples} byte samples of {sample_len}", "ok": not bad,
+                   **({"differ_at": bad} if bad else {})})
+    ok = all(c["ok"] is not False for c in checks)
+    return {"ok": ok, "program": field("Name", info), "image": str(reverse.image), "image_sha256": sha,
+            "image_base": f"0x{base:X}", "image_size": len(image), "functions_in_ghidra": field("Function Count", info),
+            "checks": checks}
+
+
 class Debugger:
     """A per-agent x64dbg session through the x64dbg-automate MCP server (stdio), started on first use and kept for
     the life of this Harbor process, so breakpoints and the paused game survive between calls. Configured by
diff --git a/tests/test_reverse.py b/tests/test_reverse.py
index caa32b8..d79483b 100644
--- a/tests/test_reverse.py
+++ b/tests/test_reverse.py
@@ -58,6 +58,105 @@ class ReverseTools(unittest.TestCase):
         with self.assertRaises(HarborError):
             Reverse({})
 
+    def test_summary_names_status_vtables_and_hints(self):
+        image = bytearray((self.d / "image.bin").read_bytes())
+        image[0xC0:0xC8] = struct.pack("<II", 0x401000, 0x401040)          # 0x4010C0: a two-slot vtable
+        (self.d / "image.bin").write_bytes(bytes(image))
+        (self.d / "sections.json").write_text(json.dumps([
+            {"name": ".text", "start": 0x401000, "end": 0x401080}, {"name": ".rdata", "start": 0x4010B0,
+                                                                     "end": 0x401100}]), encoding="utf-8")
+        facts = [json.loads(l) for l in (self.d / "facts.jsonl").read_text(encoding="utf-8").splitlines()]
+        facts[1]["data"] = ["0x4010C0"]                                    # the constructor installs it
+        facts[0]["strings"] = [".cue"]
+        (self.d / "facts.jsonl").write_text("\n".join(json.dumps(f) for f in facts), encoding="utf-8")
+        src = self.d / "src" / "game"
+        src.mkdir(parents=True)
+        (src / "401040_Helper.c").write_text("/* Helper\n * status: readable\n */\nvoid Helper(void) {}\n",
+                                             encoding="utf-8")
+        (self.d / "mac.csv").write_text("pc_address,demangled,confidence\n0x00401000,Level::Get(),high\n",
+                                        encoding="utf-8")
+        r = Reverse({"image": str(self.d / "image.bin"), "base": "0x401000", "facts": str(self.d / "facts.jsonl"),
+                     "annotations": str(self.d / "annotations"), "src": str(self.d / "src"),
+                     "mac_names": str(self.d / "mac.csv")})
+        s = r.summary("GetLevel")
+        self.assertEqual((s["name"], s["size"], s["status"], s["readable"]), ("GetLevel", 18, "no file", False))
+        self.assertIn("plain ret", s["prototype"])
+        self.assertEqual(s["callees"], [{"address": "0x401040", "name": "Helper", "status": "readable",
+                                         "readable": True}])
+        self.assertEqual(s["globals"], [{"address": "0x401080", "name": "g_root", "type": "int"}])
+        self.assertEqual(s["strings"], [".cue"])
+        self.assertEqual(s["vtable_slots"], [{"table": "0x4010C0", "slot": 0, "offset": "0x0", "kind": "vtable"}])
+        self.assertEqual(s["hints"]["mac_name"]["demangled"], "Level::Get()")
+        h = r.summary("0x401040")
+        self.assertTrue(h["readable"])
+        self.assertEqual([c["name"] for c in h["callers"]], ["GetLevel"])
+        self.assertEqual(h["vtable_slots"][0]["slot"], 1)
+        from harbor.reverse import format_summary
+        self.assertIn("vtable 0x4010C0 slot 1 (+0x4)", format_summary(h))
+
+
+class GhidraCheck(unittest.TestCase):
+    """ghidra_check compares the served program with the project image: range, SHA-256 of the file, byte samples."""
+
+    def serve(self, lo, hi, path, image):
+        import http.server
+        import threading
+
+        class Fake(http.server.BaseHTTPRequestHandler):
+            def log_message(self, *a):
+                pass
+
+            def do_POST(self):
+                body = json.loads(self.rfile.read(int(self.headers["Content-Length"])))
+                if "id" not in body:
+                    self.send_response(202)
+                    self.end_headers()
+                    return
+                params = body.get("params", {})
+                name, args = params.get("name"), params.get("arguments", {})
+                text = ""
+                if name == "get_binary_info":
+                    text = f"Program Information:\nName: image.bin\nImage Base: 00000000\nMin Address: {lo:08x}\n" \
+                           f"Max Address: {hi:08x}\nFunction Count: 2\n"
+                elif name == "list_binaries":
+                    text = f"Open Programs in Ghidra:\n\n1. image.bin [ACTIVE]\n   Executable Path: /{path}\n"
+                elif name == "get_data_at":
+                    a, n = int(args["address"], 16), int(args["len"])
+                    chunk = image[a - 0x401000:a - 0x401000 + n]
+                    rows = [f"{a + i:x}  " + " ".join(f"{b:02x}" for b in chunk[i:i + 16]) + "  |....|"
+                            for i in range(0, len(chunk), 16)]
+                    text = f"Hexdump at {a:08x} ({n} bytes):\n\n" + "\n".join(rows) + "\n"
+                result = {"content": [{"type": "text", "text": text}]} if body["method"] == "tools/call" else {}
+                data = json.dumps({"jsonrpc": "2.0", "id": body["id"], "result": result}).encode()
+                self.send_response(200)
+                self.send_header("Content-Type", "application/json")
+                self.send_header("Content-Length", str(len(data)))
+                self.end_headers()
+                self.wfile.write(data)
+
+        server = http.server.ThreadingHTTPServer(("127.0.0.1", 0), Fake)
+        threading.Thread(target=server.serve_forever, daemon=True).start()
+        self.addCleanup(server.server_close)
+        self.addCleanup(server.shutdown)
+        return f"http://127.0.0.1:{server.server_port}/mcp"
+
+    def test_match_and_mismatch(self):
+        from harbor.reverse import ghidra_check
+        d = temp_dir()
+        self.addCleanup(shutil.rmtree, d, True)
+        image = bytes(range(256)) * 4
+        (d / "image.bin").write_bytes(image)
+        config = {"image": str(d / "image.bin"), "base": "0x401000"}
+        good = ghidra_check(config | {"ghidra_url": self.serve(0x401000, 0x4013FF, (d / "image.bin").as_posix(), image)})
+        self.assertTrue(good["ok"], good)
+        self.assertEqual([c["ok"] for c in good["checks"]], [True, True, True])
+        other = d / "other.bin"
+        other.write_bytes(image[:-1] + b"\x00")
+        bad = ghidra_check(config | {"ghidra_url": self.serve(0x401000, 0x4013FE, other.as_posix(),
+                                                               image[:512] + b"\0" * 512)})
+        self.assertFalse(bad["ok"])
+        self.assertEqual([c["ok"] for c in bad["checks"]], [False, False, False])
+
 
 class GhidraForwarder(unittest.TestCase):
     """The ghidra() tool against a fake streamable-HTTP MCP server: a session, a polled async task, a refusal."""