feat(backends,conversations,frontends): opus 5.5 progress updates reach telegram, current claude cli in the image

Dockerfile

@@ -45,11 +45,30 @@ RUN apt-get update \
  && rm -rf /var/lib/apt/lists/*
 
 # Bun native binary (glibc): `bunx` runs the stdio MCP servers declared in
-# the user's config. The claude CLI itself ships inside the
+# the user's config.
-# claude-agent-sdk wheel (`_bundled/claude`), nothing to install here.
 COPY --from=oven/bun:1-slim /usr/local/bin/bun /usr/local/bin/bun
 RUN ln -s /usr/local/bin/bun /usr/local/bin/bunx
 
+# The claude-agent-sdk wheel bundles a CLI, but it trails the npm release:
+# 0.2.157 carries 2.1.277, which does not know claude-opus-5-5 and writes an
+# [claude-code:unrecognized_model] warning per turn. Install the npm build and
+# point BEAVER_CLAUDE_CLI at it; the adapter prefers it over the bundled one.
+#
+# Only the glibc platform package is pulled: the meta package also drags in the
+# musl build, and this image is glibc for the reason stated at the top. The
+# tree lands under /opt world-readable because the model runs as beaver-runner,
+# not as root.
+ARG CLAUDE_CODE_VERSION=2.1.280
+RUN mkdir -p /opt/claude-code \
+ && cd /opt/claude-code \
+ && echo '{"name":"claude-cli-holder","private":true}' > package.json \
+ && bun add @anthropic-ai/claude-code-linux-x64@${CLAUDE_CODE_VERSION} \
+ && ln -sf /opt/claude-code/node_modules/@anthropic-ai/claude-code-linux-x64/claude \
+       /usr/local/bin/claude-cli \
+ && chmod -R a+rX /opt/claude-code \
+ && /usr/local/bin/claude-cli --version
+ENV BEAVER_CLAUDE_CLI=/usr/local/bin/claude-cli
+
 # The model process runs as `beaver-runner`, not as the gateway: the
 # adapter spawns claude under this uid with a whitelisted environment.
 # `acl` lets the entrypoint grant it write access to the vault sub-mounts

pyproject.toml

@@ -14,7 +14,7 @@ dependencies = [
     "anthropic>=0.103.0",
     "anyio>=4.13.0",
     "argon2-cffi>=25.1.0",
-    "claude-agent-sdk>=0.2.150",
+    "claude-agent-sdk>=0.2.157",
     "croniter>=6.2.4",
     "fastapi>=0.136.1",
     "fastmcp>=3.3.1",

src/beaver_gateway/agents/claude.py

@@ -24,6 +24,9 @@ class ClaudeOptions(BaseModel):
     model_config = ConfigDict(frozen=True, arbitrary_types_allowed=True)
 
     effort: str | None = None
+    thinking: Mapping[str, str] | None = None
+    """Thinking config for the SDK; ``None`` keeps the CLI default."""
+
     include_partial_messages: bool = True
     """Token-level deltas on the wire; off means one delta per finished block."""
 

src/beaver_gateway/backends/claude_sdk.py

@@ -726,6 +726,7 @@ class ClaudeSdkBackend:
         return ClaudeAgentOptions(
             model=agent.model or None,
             effort=cast("Any", opt.effort),
+            thinking=cast("Any", dict(opt.thinking) if opt.thinking else None),
             system_prompt=system_prompt,
             setting_sources=[],
             strict_mcp_config=True,
@@ -933,7 +934,17 @@ async def _disconnect(live: Session) -> None:
         _log.exception("disconnect failed for session %s", live.session_id)
 
 
+CLI_ENV = "BEAVER_CLAUDE_CLI"
+"""Path to a ``claude`` CLI that wins over the one bundled in the wheel."""
+
+
 def _claude_binary() -> str:
+    override = os.environ.get(CLI_ENV)
+    if override:
+        if not Path(override).is_file():
+            msg = f"{CLI_ENV} points at {override!r}, which is not a file"
+            raise FileNotFoundError(msg)
+        return override
     bundled = Path(claude_agent_sdk.__file__).parent / "_bundled" / "claude"
     if bundled.is_file():
         return str(bundled)

src/beaver_gateway/conversations/turns.py

@@ -32,11 +32,11 @@ from beaver_gateway.frontends.accumulate import StreamAccumulator
 from beaver_gateway.storage.models import Conversation, InjectQueueItem, RateLimit
 
 if TYPE_CHECKING:
-    from collections.abc import AsyncIterator, Callable, Sequence
+    from collections.abc import AsyncIterator, Callable, Iterable, Sequence
 
     from beaver_gateway.events.stream import MessageStreamEvent
 
-__all__ = ["Turns", "content_of", "image_block"]
+__all__ = ["Turns", "content_of", "image_block", "reply_text"]
 
 _log = logging.getLogger(__name__)
 
@@ -164,12 +164,7 @@ class Turns(Seeds):
         ):
             acc.feed(event)
         message = acc.finalize(model=agent.model)
-        reply = "\n\n".join(
+        return reply_text(message.content), capture
-            getattr(b, "text", "")
-            for b in message.content
-            if getattr(b, "type", "") == "text"
-        ).strip()
-        return reply, capture
 
     async def before_turn(self, conv: Conversation) -> str | None:  # noqa: ARG002
         return None
@@ -489,6 +484,22 @@ class Turns(Seeds):
 IMAGE_MAX_BYTES = 5 * 1024 * 1024
 
 
+def reply_text(content: Iterable[Any]) -> str:
+    """Text blocks plus non-empty thinking blocks, in block order.
+
+    What the model writes between tool calls rides in thinking blocks; the
+    hidden reasoning in them is empty and drops out on its own.
+    """
+    parts: list[str] = []
+    for block in content:
+        kind = getattr(block, "type", "")
+        if kind == "text":
+            parts.append(getattr(block, "text", "") or "")
+        elif kind == "thinking":
+            parts.append(getattr(block, "thinking", "") or "")
+    return "\n\n".join(p for p in parts if p).strip()
+
+
 def content_of(
     text: str, attachments: Sequence[dict[str, Any]] | None
 ) -> str | list[dict[str, Any]]:

src/beaver_gateway/frontends/telegram/frontend.py

@@ -983,6 +983,11 @@ class TelegramFrontend(Frontend):
                 draft.set_status(self.texts.writing)
                 draft.append(str(delta.get("text") or ""))
             elif delta.get("type") == "thinking_delta":
+                progress = str(delta.get("thinking") or "")
+                if progress:
+                    draft.set_status(self.texts.writing)
+                    draft.append(progress)
+                else:
                     draft.set_status(self.texts.thinking)
         elif kind == "content_block_start":
             block = raw.get("content_block") or {}

tests/test_conversations.py

@@ -20,7 +20,11 @@ from claude_agent_sdk import (
     project_key_for_directory,
 )
 
+from anthropic.types import TextBlock as AnthropicTextBlock
+from anthropic.types import ThinkingBlock
+
 from beaver_gateway.agents.claude import ClaudeAgent, ClaudeOptions
+from beaver_gateway.conversations.turns import reply_text
 from beaver_gateway.backends.claude_sdk import ClaudeSdkBackend
 from beaver_gateway.events.bus import EventBus
 from beaver_gateway.conversations.service import (
@@ -958,3 +962,17 @@ async def test_subagent_result_inside_a_turn_does_not_end_it(world: World) -> No
     assert client.prompts[-1].startswith("two")
     rows = await world.conversations.queue.recent(conv.id)
     assert [r.status for r in rows] == ["done", "done"]
+
+
+def test_reply_text_keeps_progress_updates_and_drops_hidden_reasoning() -> None:
+    blocks = [
+        ThinkingBlock(type="thinking", thinking="", signature="s"),
+        ThinkingBlock(type="thinking", thinking="looking it up", signature="s"),
+        AnthropicTextBlock(type="text", text="found it"),
+    ]
+    assert reply_text(blocks) == "looking it up\n\nfound it"
+
+
+def test_reply_text_on_a_plain_answer_is_unchanged() -> None:
+    blocks = [AnthropicTextBlock(type="text", text="  just an answer  ")]
+    assert reply_text(blocks) == "just an answer"

tests/test_telegram.py

@@ -20,6 +20,7 @@ from beaver_gateway.frontends.base import GatewayRuntime
 from beaver_gateway.frontends.files import SendFileError, SendFiles, method_for
 from beaver_gateway.frontends.telegram import Attachments, TelegramFrontend
 from beaver_gateway.frontends.telegram.drafts import Draft
+from beaver_gateway.frontends.telegram.texts import TelegramTexts
 from beaver_gateway.frontends.telegram.render import (
     LIMIT,
     chunks,
@@ -1194,3 +1195,56 @@ async def test_a_refused_upload_comes_back_to_the_agent(stack: Stack) -> None:
     outside = await _send(stack, master, path="/etc/passwd")
     assert outside["is_error"]
     assert "outside the allowed roots" in outside["content"][0]["text"]
+
+
+def _progress_draft() -> Draft:
+    return Draft(cast("Any", None), chat_id=USER, thread_id=None, turn_id="t")
+
+
+def _thinking_delta(text: str) -> Any:
+    return {
+        "event": {
+            "type": "content_block_delta",
+            "index": 0,
+            "delta": {"type": "thinking_delta", "thinking": text},
+        }
+    }
+
+
+def test_progress_updates_reach_the_draft_but_hidden_reasoning_does_not() -> None:
+    draft = _progress_draft()
+    texts = TelegramTexts()
+    stub = SimpleNamespace(_drafts={"k": draft}, texts=texts)
+    feed = functools.partial(TelegramFrontend._feed_draft, cast("Any", stub), "k")
+
+    feed(_thinking_delta(""))
+    assert draft.text == ""
+    assert draft.status == texts.thinking
+
+    feed(_thinking_delta("checking the vault"))
+    assert draft.text == "checking the vault"
+    assert draft.status == texts.writing
+
+
+def test_a_tool_call_between_progress_updates_starts_a_new_paragraph() -> None:
+    draft = _progress_draft()
+    texts = TelegramTexts()
+    stub = SimpleNamespace(
+        _drafts={"k": draft},
+        texts=texts,
+        _tool_status=lambda name, _input: texts.tool.format(label=name),
+    )
+    feed = functools.partial(TelegramFrontend._feed_draft, cast("Any", stub), "k")
+
+    feed(_thinking_delta("reading the note"))
+    feed(
+        {
+            "event": {
+                "type": "content_block_start",
+                "index": 1,
+                "content_block": {"type": "tool_use", "name": "Read"},
+            }
+        }
+    )
+    feed(_thinking_delta("now writing it back"))
+    assert draft.text == "reading the note\n\nnow writing it back"

uv.lock

@@ -338,7 +338,7 @@ requires-dist = [
     { name = "anthropic", specifier = ">=0.103.0" },
     { name = "anyio", specifier = ">=4.13.0" },
     { name = "argon2-cffi", specifier = ">=25.1.0" },
-    { name = "claude-agent-sdk", specifier = ">=0.2.150" },
+    { name = "claude-agent-sdk", specifier = ">=0.2.157" },
     { name = "croniter", specifier = ">=6.2.4" },
     { name = "fastapi", specifier = ">=0.136.1" },
     { name = "fastmcp", specifier = ">=3.3.1" },
@@ -450,7 +450,7 @@ wheels = [
 
 [[package]]
 name = "claude-agent-sdk"
-version = "0.2.150"
+version = "0.2.157"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
@@ -458,13 +458,12 @@ dependencies = [
     { name = "mcp" },
     { name = "sniffio" },
 ]
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 ]
 
 [[package]]