Merge pull request #206 from Sea-Haven-Industries/feature/port-upstream-clean-batch

feat: (port upstream) UI labels, git panel, Linear search, sandbox config

AGENTS.md

@@ -88,7 +88,7 @@ There is intentionally no after-agent safety net that opens a PR for the agent.
 All tools live in `agent/tools/` and are flat-imported via `agent/tools/__init__.py`. The set is intentionally small and curated — see README "Tools — Curated, Not Accumulated".
 
 Wired into `get_agent`:
-`http_request`, `fetch_url`, `web_search`, `linear_comment`, `linear_create_issue`, `linear_delete_issue`, `linear_get_issue`, `linear_get_issue_comments`, `linear_list_teams`, `linear_update_issue`, `jira_comment`, `jira_create_issue`, `jira_get_issue`, `jira_get_issue_comments`, `jira_list_projects`, `jira_update_issue`, `confluence_get_page`, `confluence_create_page`, `confluence_update_page`, `confluence_comment`, `confluence_search`, `request_pr_review`, `schedule_thread_wakeup`, `slack_add_reaction`, `slack_read_thread_messages`, `slack_thread_reply`.
+`http_request`, `fetch_url`, `web_search`, `linear_comment`, `linear_create_issue`, `linear_delete_issue`, `linear_get_issue`, `linear_get_issue_comments`, `linear_list_teams`, `linear_search_issues`, `linear_update_issue`, `jira_comment`, `jira_create_issue`, `jira_get_issue`, `jira_get_issue_comments`, `jira_list_projects`, `jira_update_issue`, `confluence_get_page`, `confluence_create_page`, `confluence_update_page`, `confluence_comment`, `confluence_search`, `request_pr_review`, `schedule_thread_wakeup`, `slack_add_reaction`, `slack_read_thread_messages`, `slack_thread_reply`.
 
 Reviewer-only tools (in `agent/reviewer.py`): `add_finding`, `update_finding`, `list_findings`, `publish_review`. The review-style analyzer uses `save_review_style` (exported as `save_review_style_prompt`).
 

CLAUDE.md

@@ -89,7 +89,7 @@ There is intentionally no after-agent safety net that opens a PR for the agent.
 All tools live in `agent/tools/` and are flat-imported via `agent/tools/__init__.py`. The set is intentionally small and curated — see README "Tools — Curated, Not Accumulated".
 
 Wired into `get_agent`:
-`http_request`, `fetch_url`, `web_search`, `linear_comment`, `linear_create_issue`, `linear_delete_issue`, `linear_get_issue`, `linear_get_issue_comments`, `linear_list_teams`, `linear_update_issue`, `jira_comment`, `jira_create_issue`, `jira_get_issue`, `jira_get_issue_comments`, `jira_list_projects`, `jira_update_issue`, `confluence_get_page`, `confluence_create_page`, `confluence_update_page`, `confluence_comment`, `confluence_search`, `request_pr_review`, `schedule_thread_wakeup`, `slack_add_reaction`, `slack_read_thread_messages`, `slack_thread_reply`.
+`http_request`, `fetch_url`, `web_search`, `linear_comment`, `linear_create_issue`, `linear_delete_issue`, `linear_get_issue`, `linear_get_issue_comments`, `linear_list_teams`, `linear_search_issues`, `linear_update_issue`, `jira_comment`, `jira_create_issue`, `jira_get_issue`, `jira_get_issue_comments`, `jira_list_projects`, `jira_update_issue`, `confluence_get_page`, `confluence_create_page`, `confluence_update_page`, `confluence_comment`, `confluence_search`, `request_pr_review`, `schedule_thread_wakeup`, `slack_add_reaction`, `slack_read_thread_messages`, `slack_thread_reply`.
 
 Jira uses a service-account REST client (`agent/utils/jira.py`, Basic auth) with ADF↔markdown conversion (`agent/utils/adf.py`); Confluence likewise (`agent/utils/confluence.py`, XHTML storage-format). Both are dark-safe: unset env returns a clean error.
 

README.md

@@ -72,6 +72,7 @@ Stripe's key insight: *tool curation matters more than tool quantity.* Open SWE
 | `fetch_url` | Fetch web pages as markdown |
 | `http_request` | API calls (GET, POST, etc.) |
 | `linear_comment` | Post updates to Linear tickets |
+| `linear_search_issues` | Search Linear issues by free text |
 | `jira_*` | Read/comment/create/update Jira issues |
 | `confluence_*` | Read/write Confluence pages + comments |
 | `slack_add_reaction` | React to Slack messages |

agent/chat.py

@@ -115,8 +115,10 @@ async def _resolve_chat_model(configurable: dict) -> tuple[str, str]:
 
 async def get_chat_agent(config: RunnableConfig) -> Pregel:
     """Get a read-only PR chat agent. No sandbox; PR context comes via config."""
+    config = config.copy()
+    config["configurable"] = config["configurable"].copy()
+    config.setdefault("recursion_limit", DEFAULT_RECURSION_LIMIT)
     thread_id = config["configurable"].get("thread_id")
-    config["recursion_limit"] = DEFAULT_RECURSION_LIMIT
 
     if thread_id is None or not graph_loaded_for_execution(config):
         return create_deep_agent(system_prompt="", tools=[]).with_config(config)

agent/dashboard/repo_snapshots.py

@@ -342,9 +342,9 @@ def _build_snapshot_sync(record: dict[str, Any], snapshot_name: str) -> tuple[st
     """
     from langsmith.sandbox import SandboxClient
 
-    from agent.integrations.langsmith import _get_langsmith_api_key
+    from agent.integrations.langsmith import _get_sandbox_api_endpoint, _get_sandbox_api_key
 
-    api_key = _get_langsmith_api_key()
+    api_key = _get_sandbox_api_key()
     if not api_key:
         raise RuntimeError("LANGSMITH_API_KEY is not configured")
 
@@ -356,7 +356,7 @@ def _build_snapshot_sync(record: dict[str, Any], snapshot_name: str) -> tuple[st
     timeout = int(
         os.environ.get("REPO_SNAPSHOT_BUILD_TIMEOUT_SECONDS", DEFAULT_BUILD_TIMEOUT_SECONDS)
     )
-    client = SandboxClient(api_key=api_key)
+    client = SandboxClient(api_key=api_key, api_endpoint=_get_sandbox_api_endpoint())
     try:
         with tempfile.TemporaryDirectory(prefix="openswe-snapshot-") as context_dir:
             dockerfile_path = Path(context_dir) / "Dockerfile"

agent/integrations/langsmith.py

@@ -4,9 +4,11 @@ from __future__ import annotations
 
 import asyncio
 import base64
+import json
 import logging
 import os
 import time
+import uuid
 from abc import ABC, abstractmethod
 from concurrent.futures import ThreadPoolExecutor
 from concurrent.futures import TimeoutError as FuturesTimeout
@@ -44,6 +46,69 @@ def _get_langsmith_api_key() -> str | None:
     return os.environ.get("LANGSMITH_API_KEY") or os.environ.get("LANGSMITH_API_KEY_PROD")
 
 
+def _get_sandbox_api_key() -> str | None:
+    """LangSmith API key for sandbox operations.
+
+    ``SANDBOX_LANGSMITH_API_KEY`` lets sandboxes run against a different
+    LangSmith workspace than the one used for tracing/other API calls; falls
+    back to the standard key.
+    """
+    return os.environ.get("SANDBOX_LANGSMITH_API_KEY") or _get_langsmith_api_key()
+
+
+def _get_sandbox_endpoint() -> str:
+    """LangSmith API **root** for sandbox operations.
+
+    Overridable via ``SANDBOX_LANGSMITH_ENDPOINT`` to pair with
+    ``SANDBOX_LANGSMITH_API_KEY``; falls back to ``LANGSMITH_ENDPOINT``. This is
+    the bare root (e.g. ``https://api.smith.langchain.com``) used to build the
+    proxy-config URL; the SDK clients take :func:`_get_sandbox_api_endpoint`.
+    """
+    return (
+        os.environ.get("SANDBOX_LANGSMITH_ENDPOINT")
+        or os.environ.get("LANGSMITH_ENDPOINT")
+        or "https://api.smith.langchain.com"
+    )
+
+
+def _get_sandbox_api_endpoint() -> str:
+    """Sandbox API base URL for the langsmith SDK clients.
+
+    The SDK's ``api_endpoint`` is the sandbox base (root + ``/v2/sandboxes``),
+    not the API root, and its methods append ``/boxes``, ``/snapshots``, etc.
+    """
+    root = _get_sandbox_endpoint().rstrip("/")
+    suffix = "/v2/sandboxes"
+    return root if root.endswith(suffix) else f"{root}{suffix}"
+
+
+def _current_thread_id() -> str | None:
+    """The LangGraph thread id for the active run, if any."""
+    try:
+        from langgraph.config import get_config
+
+        return get_config().get("configurable", {}).get("thread_id")
+    except Exception:
+        return None
+
+
+def _sandbox_name_for_thread(thread_id: str | None) -> str | None:
+    """Deterministic, thread-traceable sandbox name: ``openswe-<b32(thread uuid)>``.
+
+    The thread id (a UUID) is base32-encoded lowercase without padding so the
+    name is a compact, hyphen-free token that maps back to the thread. Returns
+    None when the thread id is missing or not a UUID, leaving the name unset.
+    """
+    if not thread_id:
+        return None
+    try:
+        raw = uuid.UUID(thread_id).bytes
+    except ValueError:
+        return None
+    encoded = base64.b32encode(raw).decode("ascii").rstrip("=").lower()
+    return f"openswe-{encoded}"
+
+
 def _parse_optional_int(name: str, default: int) -> int:
     raw = os.environ.get(name)
     if not raw:
@@ -87,6 +152,43 @@ def _get_sandbox_snapshot_config() -> tuple[str | None, int, int, int, int, int]
     )
 
 
+def _get_sandbox_create_extra_fields() -> dict[str, Any]:
+    """Parse SANDBOX_CREATE_EXTRA_JSON into extra fields merged into the
+    sandbox-create request body, e.g. ``{"_internal_runtime": "v2"}``."""
+    raw = os.environ.get("SANDBOX_CREATE_EXTRA_JSON")
+    if not raw or not raw.strip():
+        return {}
+    try:
+        parsed = json.loads(raw)
+    except json.JSONDecodeError as e:
+        msg = f"SANDBOX_CREATE_EXTRA_JSON must be valid JSON, got {raw!r}"
+        raise ValueError(msg) from e
+    if not isinstance(parsed, dict):
+        msg = f"SANDBOX_CREATE_EXTRA_JSON must be a JSON object, got {type(parsed).__name__}"
+        raise ValueError(msg)
+    return parsed
+
+
+def _install_create_extra_fields(client: SandboxClient, extra: dict[str, Any]) -> None:
+    """Merge ``extra`` into the JSON body of the sandbox-create request.
+
+    The SDK's ``create_sandbox`` builds a fixed payload with no passthrough, so
+    wrap the HTTP client's ``post`` to inject the fields on the ``POST /boxes``
+    request only (other endpoints post to ``/boxes/{name}/...``).
+    """
+    if not extra:
+        return
+    original_post = client._http.post
+
+    def post_with_extra(url: Any, *args: Any, **kwargs: Any) -> Any:
+        payload = kwargs.get("json")
+        if str(url).endswith("/boxes") and isinstance(payload, dict):
+            kwargs["json"] = {**payload, **extra}
+        return original_post(url, *args, **kwargs)
+
+    client._http.post = post_with_extra
+
+
 def _github_proxy_rules(github_token: str) -> list[dict[str, Any]]:
     basic_auth = base64.b64encode(f"x-access-token:{github_token}".encode()).decode()
     return [
@@ -134,6 +236,22 @@ def _is_retryable_proxy_config_error(exc: BaseException) -> bool:
     return isinstance(exc, httpx.TransportError)
 
 
+def _release_sandbox_name(client: SandboxClient, name: str | None) -> None:
+    """Best-effort delete of any existing sandbox holding ``name``.
+
+    Sandbox names are unique in LangSmith and thread-deterministic, so the only
+    box that can hold this name is this thread's own — typically a dead one
+    (idle-stopped past its TTL) we're recreating. Provisioning is serialized per
+    thread, so this never races a live box. Without this, recreate would 409.
+    """
+    if not name:
+        return
+    try:
+        client.delete_sandbox(name)
+    except Exception as exc:  # noqa: BLE001 - name is free if nothing to delete
+        logger.debug("No pre-existing sandbox %s to release (%s)", name, type(exc).__name__)
+
+
 def _configure_github_proxy(sandbox_name: str, github_token: str) -> None:
     """Configure sandbox proxy to inject GitHub auth for GitHub traffic.
 
@@ -145,11 +263,11 @@ def _configure_github_proxy(sandbox_name: str, github_token: str) -> None:
         sandbox_name: The sandbox name/ID returned by the LangSmith API.
         github_token: GitHub token to inject as Authorization header.
     """
-    api_key = _get_langsmith_api_key()
+    api_key = _get_sandbox_api_key()
     if not api_key:
         logger.warning("No LangSmith API key found, skipping GitHub proxy configuration")
         return
-    langsmith_endpoint = os.environ.get("LANGSMITH_ENDPOINT", "https://api.smith.langchain.com")
+    langsmith_endpoint = _get_sandbox_endpoint()
     url = f"{langsmith_endpoint}/v2/sandboxes/boxes/{sandbox_name}"
     payload = {"proxy_config": {"rules": _github_proxy_rules(github_token)}}
     with httpx.Client(timeout=PROXY_CONFIG_TIMEOUT_SECONDS) as client:
@@ -211,7 +329,7 @@ def create_langsmith_sandbox(
     Returns:
         SandboxBackendProtocol instance
     """
-    api_key = _get_langsmith_api_key()
+    api_key = _get_sandbox_api_key()
     (
         default_snapshot_id,
         fs_capacity_bytes,
@@ -227,6 +345,7 @@ def create_langsmith_sandbox(
     backend = provider.get_or_create(
         sandbox_id=sandbox_id,
         snapshot_id=effective_snapshot_id,
+        name=_sandbox_name_for_thread(_current_thread_id()),
         fs_capacity_bytes=fs_capacity_bytes,
         vcpus=vcpus,
         mem_bytes=mem_bytes,
@@ -246,11 +365,9 @@ def _update_thread_sandbox_metadata(sandbox_id: str) -> None:
     try:
         import asyncio
 
-        from langgraph.config import get_config
         from langgraph_sdk import get_client
 
-        config = get_config()
+        thread_id = _current_thread_id()
-        thread_id = config.get("configurable", {}).get("thread_id")
         if not thread_id:
             return
         client = get_client()
@@ -416,11 +533,14 @@ class LangSmithProvider(SandboxProvider):
     def __init__(self, api_key: str | None = None) -> None:
         from langsmith import sandbox
 
-        self._api_key = api_key or _get_langsmith_api_key()
+        self._api_key = api_key or _get_sandbox_api_key()
+        self._api_endpoint = _get_sandbox_api_endpoint()
         if not self._api_key:
             msg = "LANGSMITH_API_KEY (or LANGSMITH_API_KEY_PROD) not set"
             raise ValueError(msg)
-        self._client: SandboxClient = sandbox.SandboxClient(api_key=self._api_key)
+        self._client: SandboxClient = sandbox.SandboxClient(
+            api_key=self._api_key, api_endpoint=self._api_endpoint
+        )
 
     @classmethod
     def validate_startup_config(cls) -> None:
@@ -453,6 +573,7 @@ class LangSmithProvider(SandboxProvider):
             ):
                 msg = f"{name} must be >= 0, got {value}"
                 raise ValueError(msg)
+        _get_sandbox_create_extra_fields()
 
     def get_or_create(
         self,
@@ -460,6 +581,7 @@ class LangSmithProvider(SandboxProvider):
         sandbox_id: str | None = None,
         timeout: int = 180,
         snapshot_id: str | None = None,
+        name: str | None = None,
         fs_capacity_bytes: int | None = None,
         vcpus: int | None = None,
         mem_bytes: int | None = None,
@@ -483,9 +605,13 @@ class LangSmithProvider(SandboxProvider):
             msg = "DEFAULT_SANDBOX_SNAPSHOT_ID must be set when SANDBOX_TYPE=langsmith"
             raise ValueError(msg)
 
+        _install_create_extra_fields(self._client, _get_sandbox_create_extra_fields())
+        _release_sandbox_name(self._client, name)
+
         try:
             sandbox = self._client.create_sandbox(
                 snapshot_id=snapshot_id,
+                name=name,
                 fs_capacity_bytes=fs_capacity_bytes,
                 vcpus=vcpus,
                 mem_bytes=mem_bytes,

agent/middleware/refresh_slack_status.py

@@ -63,6 +63,7 @@ _TOOL_STATUS: dict[str, str] = {
     "linear_get_issue": "checking Linear...",
     "linear_get_issue_comments": "checking Linear...",
     "linear_list_teams": "checking Linear...",
+    "linear_search_issues": "searching Linear...",
     "linear_update_issue": "updating Linear...",
     "linear_delete_issue": "updating Linear...",
     "add_finding": "recording review findings...",

agent/reviewer.py

@@ -854,10 +854,11 @@ async def _resolve_grouping_model(
 
 async def get_reviewer_agent(config: RunnableConfig) -> Pregel:
     """Get or create a reviewer agent with a sandbox + prepped repo."""
+    config = config.copy()
+    config["configurable"] = config["configurable"].copy()
+    config.setdefault("recursion_limit", DEFAULT_RECURSION_LIMIT)
     thread_id = config["configurable"].get("thread_id", None)
 
-    config["recursion_limit"] = DEFAULT_RECURSION_LIMIT
-
     if thread_id is None or not graph_loaded_for_execution(config):
         logger.info("No thread_id or not for execution, returning reviewer agent without sandbox")
         return create_deep_agent(system_prompt="", tools=[]).with_config(config)

agent/server.py

@@ -105,6 +105,7 @@ from .tools import (
     linear_get_issue,
     linear_get_issue_comments,
     linear_list_teams,
+    linear_search_issues,
     linear_update_issue,
     open_pull_request,
     report_platform_issue,
@@ -1019,6 +1020,7 @@ async def get_agent(config: RunnableConfig) -> Pregel:
             linear_get_issue,
             linear_get_issue_comments,
             linear_list_teams,
+            linear_search_issues,
             linear_update_issue,
             jira_comment,
             jira_create_issue,

agent/tools/__init__.py

@@ -24,6 +24,7 @@ _TOOL_MODULES = {
     "linear_get_issue": ".linear_get_issue",
     "linear_get_issue_comments": ".linear_get_issue_comments",
     "linear_list_teams": ".linear_list_teams",
+    "linear_search_issues": ".linear_search_issues",
     "linear_update_issue": ".linear_update_issue",
     "list_findings": ".list_findings",
     "list_review_findings": ".list_review_findings",
@@ -67,6 +68,7 @@ __all__ = [
     "linear_get_issue",
     "linear_get_issue_comments",
     "linear_list_teams",
+    "linear_search_issues",
     "linear_update_issue",
     "list_findings",
     "list_review_findings",
@@ -110,6 +112,7 @@ if TYPE_CHECKING:
     from .linear_get_issue import linear_get_issue
     from .linear_get_issue_comments import linear_get_issue_comments
     from .linear_list_teams import linear_list_teams
+    from .linear_search_issues import linear_search_issues
     from .linear_update_issue import linear_update_issue
     from .list_findings import list_findings
     from .list_review_findings import list_review_findings

agent/tools/linear_search_issues.py

@@ -0,0 +1,34 @@
+from typing import Any
+
+from ..utils.linear import search_issues
+
+
+async def linear_search_issues(
+    query: str,
+    team_id: str | None = None,
+    limit: int = 10,
+    include_archived: bool = False,
+    include_comments: bool = False,
+    after: str | None = None,
+) -> dict[str, Any]:
+    """Search Linear issues by title, description, and optionally comments.
+
+    Args:
+        query: Free-text search query.
+        team_id: Optional team UUID used to restrict matches to that team.
+        limit: Maximum results to return, from 1 to 50.
+        include_archived: Whether to include archived issues.
+        include_comments: Whether to search issue comments in addition to issue content.
+        after: Optional pagination cursor from a previous result's page_info.endCursor.
+
+    Returns:
+        Matching issues plus total_count and page_info for pagination.
+    """
+    return await search_issues(
+        query=query,
+        team_id=team_id,
+        limit=limit,
+        include_archived=include_archived,
+        include_comments=include_comments,
+        after=after,
+    )

agent/utils/linear.py

@@ -132,6 +132,84 @@ async def get_issue(issue_id: str) -> dict[str, Any]:
     return {"issue": result.get("issue")}
 
 
+async def search_issues(
+    query: str,
+    team_id: str | None = None,
+    limit: int = 10,
+    include_archived: bool = False,
+    include_comments: bool = False,
+    after: str | None = None,
+) -> dict[str, Any]:
+    """Search Linear issues by free-text query."""
+    query = query.strip()
+    if not query:
+        return {"error": "Search query must not be empty"}
+    if not 1 <= limit <= 50:
+        return {"error": "Search limit must be between 1 and 50"}
+
+    search_query = """
+    query SearchIssues(
+        $query: String!
+        $filter: IssueFilter
+        $limit: Int!
+        $includeArchived: Boolean
+        $includeComments: Boolean
+        $after: String
+    ) {
+        searchIssues(
+            term: $query
+            filter: $filter
+            first: $limit
+            includeArchived: $includeArchived
+            includeComments: $includeComments
+            after: $after
+        ) {
+            totalCount
+            pageInfo {
+                hasNextPage
+                endCursor
+            }
+            nodes {
+                id
+                identifier
+                title
+                priority
+                priorityLabel
+                state { id name type }
+                assignee { id name email }
+                team { id name key }
+                project { id name }
+                labels { nodes { id name } }
+                createdAt
+                updatedAt
+                archivedAt
+                url
+            }
+        }
+    }
+    """
+    result = await _graphql_request(
+        search_query,
+        {
+            "query": query,
+            "filter": {"team": {"id": {"eq": team_id}}} if team_id else None,
+            "limit": limit,
+            "includeArchived": include_archived,
+            "includeComments": include_comments,
+            "after": after,
+        },
+    )
+    if "error" in result:
+        return result
+
+    search_results = result.get("searchIssues", {})
+    return {
+        "issues": search_results.get("nodes", []),
+        "total_count": search_results.get("totalCount", 0),
+        "page_info": search_results.get("pageInfo", {}),
+    }
+
+
 async def create_issue(
     team_id: str,
     title: str,

docs/CUSTOMIZATION.md

@@ -69,6 +69,8 @@ Set the `SANDBOX_TYPE` environment variable to switch providers. Each provider h
 
 > **Warning**: `local` runs commands directly on your host with no sandboxing. Only use for local development with human-in-the-loop enabled.
 
+For `langsmith`, sandboxes default to the same LangSmith credentials as tracing. To run sandboxes against a **different** LangSmith workspace, set `SANDBOX_LANGSMITH_API_KEY` (falls back to `LANGSMITH_API_KEY` / `LANGSMITH_API_KEY_PROD`) and optionally `SANDBOX_LANGSMITH_ENDPOINT` (falls back to `LANGSMITH_ENDPOINT`). These apply to sandbox create/connect/delete, the GitHub proxy config, and repo snapshot builds — the `DEFAULT_SANDBOX_SNAPSHOT_ID` must exist in whichever workspace these credentials point at.
+
 ### Adding a new sandbox provider
 
 1. **Create an integration file** at `agent/integrations/my_provider.py` with a factory function matching this signature:

tests/reviewer/test_factory_config_isolation.py

@@ -0,0 +1,122 @@
+"""Tests that get_reviewer_agent and get_chat_agent do not mutate the caller's config."""
+
+from __future__ import annotations
+
+from unittest.mock import MagicMock, patch
+
+import pytest
+from langgraph.graph.state import RunnableConfig
+
+
+def _make_config(recursion_limit: int = 25) -> RunnableConfig:
+    return {
+        "configurable": {"thread_id": None},
+        "recursion_limit": recursion_limit,
+    }
+
+
+@pytest.mark.asyncio
+async def test_get_reviewer_agent_does_not_mutate_caller_config() -> None:
+    """get_reviewer_agent must not overwrite the caller's recursion_limit."""
+    from agent import reviewer
+
+    config = _make_config(recursion_limit=25)
+    original_limit = config["recursion_limit"]
+
+    fake_pregel = MagicMock()
+    fake_pregel.with_config = MagicMock(return_value=fake_pregel)
+
+    with patch("agent.reviewer.create_deep_agent", return_value=fake_pregel):
+        await reviewer.get_reviewer_agent(config)
+
+    assert config["recursion_limit"] == original_limit, (
+        f"get_reviewer_agent mutated caller's recursion_limit: "
+        f"expected {original_limit}, got {config['recursion_limit']}"
+    )
+
+
+@pytest.mark.asyncio
+async def test_get_reviewer_agent_applies_default_when_limit_unset() -> None:
+    """get_reviewer_agent should apply DEFAULT_RECURSION_LIMIT when the caller didn't set one."""
+    from agent import reviewer
+
+    config: RunnableConfig = {"configurable": {"thread_id": None}}
+
+    fake_pregel = MagicMock()
+    fake_pregel.with_config = MagicMock(return_value=fake_pregel)
+
+    with patch("agent.reviewer.create_deep_agent", return_value=fake_pregel):
+        await reviewer.get_reviewer_agent(config)
+
+    assert "recursion_limit" not in config
+
+
+@pytest.mark.asyncio
+async def test_get_chat_agent_does_not_mutate_caller_config() -> None:
+    """get_chat_agent must not overwrite the caller's recursion_limit."""
+    from agent import chat
+
+    config = _make_config(recursion_limit=50)
+    original_limit = config["recursion_limit"]
+
+    fake_pregel = MagicMock()
+    fake_pregel.with_config = MagicMock(return_value=fake_pregel)
+
+    with patch("agent.chat.create_deep_agent", return_value=fake_pregel):
+        await chat.get_chat_agent(config)
+
+    assert config["recursion_limit"] == original_limit, (
+        f"get_chat_agent mutated caller's recursion_limit: "
+        f"expected {original_limit}, got {config['recursion_limit']}"
+    )
+
+
+@pytest.mark.asyncio
+async def test_get_chat_agent_applies_default_when_limit_unset() -> None:
+    """get_chat_agent should apply DEFAULT_RECURSION_LIMIT when the caller didn't set one."""
+    from agent import chat
+
+    config: RunnableConfig = {"configurable": {"thread_id": None}}
+
+    fake_pregel = MagicMock()
+    fake_pregel.with_config = MagicMock(return_value=fake_pregel)
+
+    with patch("agent.chat.create_deep_agent", return_value=fake_pregel):
+        await chat.get_chat_agent(config)
+
+    assert "recursion_limit" not in config
+
+
+@pytest.mark.parametrize(
+    ("module_name", "factory_name"),
+    [("agent.reviewer", "get_reviewer_agent"), ("agent.chat", "get_chat_agent")],
+)
+@pytest.mark.asyncio
+async def test_factory_copies_config_dicts_but_preserves_runtime_objects(
+    module_name: str, factory_name: str
+) -> None:
+    """Factory config isolation must preserve callback and configurable value identities."""
+    module = __import__(module_name, fromlist=[factory_name])
+    factory = getattr(module, factory_name)
+    callback = object()
+    configurable_value = object()
+    callbacks = [callback]
+    config: RunnableConfig = {
+        "configurable": {"thread_id": None, "custom_key": configurable_value},
+        "callbacks": callbacks,
+    }
+
+    fake_pregel = MagicMock()
+    fake_pregel.with_config = MagicMock(return_value=fake_pregel)
+
+    with patch(f"{module_name}.create_deep_agent", return_value=fake_pregel):
+        await factory(config)
+
+    bound_config = fake_pregel.with_config.call_args.args[0]
+    assert bound_config is not config
+    assert bound_config["configurable"] is not config["configurable"]
+    assert bound_config["configurable"]["custom_key"] is configurable_value
+    assert bound_config["callbacks"] is callbacks
+    assert bound_config["callbacks"][0] is callback
+    assert "recursion_limit" not in config
+    assert config["configurable"] == {"thread_id": None, "custom_key": configurable_value}

tests/reviewer/test_reviewer.py

@@ -1288,13 +1288,17 @@ async def test_reviewer_populates_diff_line_set_from_github_api() -> None:
         patch("agent.utils.deferred_model.make_model", return_value=MagicMock()),
         patch("agent.reviewer.create_deep_agent", side_effect=fake_create_deep_agent),
     ):
-        await reviewer.get_reviewer_agent(config)
+        agent = await reviewer.get_reviewer_agent(config)
 
     mock_fetch_diff.assert_awaited_once_with(
         owner="acme", repo="repo", pr_number=42, token="gh-token"
     )
-    assert config["configurable"]["diff_text"] == pr_diff
+    # get_reviewer_agent copies the caller's config before mutating it (it must not
-    assert config["configurable"]["diff_line_set"] == {"in_diff.py": {"RIGHT": {10}, "LEFT": {1}}}
+    # mutate the caller's dict in place), so assert against the config actually
+    # bound to the returned agent rather than the original input dict.
+    bound_configurable = agent.config["configurable"]
+    assert bound_configurable["diff_text"] == pr_diff
+    assert bound_configurable["diff_line_set"] == {"in_diff.py": {"RIGHT": {10}, "LEFT": {1}}}
 
 
 @pytest.mark.asyncio
@@ -1353,10 +1357,14 @@ async def test_reviewer_leaves_validation_disabled_when_diff_fetch_fails() -> No
         patch("agent.utils.deferred_model.make_model", return_value=MagicMock()),
         patch("agent.reviewer.create_deep_agent", side_effect=fake_create_deep_agent),
     ):
-        await reviewer.get_reviewer_agent(config)
+        agent = await reviewer.get_reviewer_agent(config)
 
-    assert config["configurable"]["diff_text"] == ""
+    # get_reviewer_agent copies the caller's config before mutating it (it must not
-    assert config["configurable"]["diff_line_set"] is None
+    # mutate the caller's dict in place), so assert against the config actually
+    # bound to the returned agent rather than the original input dict.
+    bound_configurable = agent.config["configurable"]
+    assert bound_configurable["diff_text"] == ""
+    assert bound_configurable["diff_line_set"] is None
 
 
 @pytest.mark.asyncio

tests/sandbox/test_langsmith_sandbox_config.py

@@ -1,6 +1,8 @@
 """Tests for LangSmith sandbox env-var configuration parsing."""
 
-from unittest.mock import patch
+import base64
+import uuid
+from unittest.mock import MagicMock, patch
 
 import pytest
 
@@ -11,10 +13,62 @@ from agent.integrations.langsmith import (
     DEFAULT_SANDBOX_VCPUS,
     DEFAULT_SNAPSHOT_FS_CAPACITY_BYTES,
     LangSmithProvider,
+    _get_sandbox_api_endpoint,
+    _get_sandbox_create_extra_fields,
     _get_sandbox_snapshot_config,
+    _install_create_extra_fields,
+    _release_sandbox_name,
+    _sandbox_name_for_thread,
 )
 
 
+def test_sandbox_api_endpoint_appends_v2_sandboxes() -> None:
+    with patch.dict("os.environ", {"LANGSMITH_ENDPOINT": "https://eu.smith.langchain.com"}):
+        assert _get_sandbox_api_endpoint() == "https://eu.smith.langchain.com/v2/sandboxes"
+
+
+def test_sandbox_api_endpoint_no_double_suffix() -> None:
+    with patch.dict(
+        "os.environ",
+        {"SANDBOX_LANGSMITH_ENDPOINT": "https://x.smith.langchain.com/v2/sandboxes"},
+    ):
+        assert _get_sandbox_api_endpoint() == "https://x.smith.langchain.com/v2/sandboxes"
+
+
+def test_sandbox_name_for_thread_encodes_uuid() -> None:
+    thread_id = "12345678-1234-5678-1234-567812345678"
+    name = _sandbox_name_for_thread(thread_id)
+    assert name is not None
+    prefix, _, encoded = name.partition("-")
+    assert prefix == "openswe"
+    assert encoded == encoded.lower()
+    assert "=" not in encoded and "-" not in encoded
+    # Round-trips back to the original UUID.
+    padded = encoded.upper() + "=" * (-len(encoded) % 8)
+    assert uuid.UUID(bytes=base64.b32decode(padded)) == uuid.UUID(thread_id)
+
+
+def test_sandbox_name_for_thread_none_or_invalid() -> None:
+    assert _sandbox_name_for_thread(None) is None
+    assert _sandbox_name_for_thread("not-a-uuid") is None
+
+
+def test_release_sandbox_name_deletes_stale_box() -> None:
+    client = MagicMock()
+    _release_sandbox_name(client, "openswe-abc")
+    client.delete_sandbox.assert_called_once_with("openswe-abc")
+
+
+def test_release_sandbox_name_swallows_missing_and_skips_none() -> None:
+    client = MagicMock()
+    client.delete_sandbox.side_effect = RuntimeError("not found")
+    _release_sandbox_name(client, "openswe-abc")  # must not raise
+
+    client.delete_sandbox.reset_mock(side_effect=True)
+    _release_sandbox_name(client, None)
+    client.delete_sandbox.assert_not_called()
+
+
 def test_defaults_when_env_unset() -> None:
     with patch.dict(
         "os.environ",
@@ -97,3 +151,67 @@ def test_validate_startup_accepts_valid_config() -> None:
         clear=True,
     ):
         LangSmithProvider.validate_startup_config()
+
+
+def test_extra_fields_unset_is_empty() -> None:
+    with patch.dict("os.environ", {}, clear=True):
+        assert _get_sandbox_create_extra_fields() == {}
+    with patch.dict("os.environ", {"SANDBOX_CREATE_EXTRA_JSON": "  "}, clear=True):
+        assert _get_sandbox_create_extra_fields() == {}
+
+
+def test_extra_fields_parsed() -> None:
+    with patch.dict(
+        "os.environ",
+        {"SANDBOX_CREATE_EXTRA_JSON": '{"_internal_runtime": "v2"}'},
+        clear=True,
+    ):
+        assert _get_sandbox_create_extra_fields() == {"_internal_runtime": "v2"}
+
+
+def test_extra_fields_rejects_invalid_json() -> None:
+    with patch.dict("os.environ", {"SANDBOX_CREATE_EXTRA_JSON": "{not json"}, clear=True):
+        with pytest.raises(ValueError, match="valid JSON"):
+            _get_sandbox_create_extra_fields()
+
+
+def test_extra_fields_rejects_non_object() -> None:
+    with patch.dict("os.environ", {"SANDBOX_CREATE_EXTRA_JSON": "[1, 2]"}, clear=True):
+        with pytest.raises(ValueError, match="JSON object"):
+            _get_sandbox_create_extra_fields()
+
+
+def test_install_create_extra_fields_merges_only_boxes_post() -> None:
+    calls: list[tuple[str, dict]] = []
+
+    class _FakeHttp:
+        def post(self, url, **kwargs):  # noqa: ANN001, ANN003
+            calls.append((url, kwargs.get("json")))
+            return "ok"
+
+    class _FakeClient:
+        def __init__(self) -> None:
+            self._http = _FakeHttp()
+
+    client = _FakeClient()
+    _install_create_extra_fields(client, {"_internal_runtime": "v2"})
+
+    client._http.post("https://api/v2/sandboxes/boxes", json={"snapshot_id": "s"})
+    client._http.post("https://api/v2/sandboxes/boxes/abc/start", json={"foo": "bar"})
+
+    assert calls[0][1] == {"snapshot_id": "s", "_internal_runtime": "v2"}
+    assert calls[1][1] == {"foo": "bar"}
+
+
+def test_install_create_extra_fields_noop_when_empty() -> None:
+    class _FakeHttp:
+        def __init__(self) -> None:
+            self.post = "sentinel"
+
+    class _FakeClient:
+        def __init__(self) -> None:
+            self._http = _FakeHttp()
+
+    client = _FakeClient()
+    _install_create_extra_fields(client, {})
+    assert client._http.post == "sentinel"

tests/sandbox/test_proxy_auth.py

@@ -125,6 +125,35 @@ class TestConfigureGithubProxy:
             headers = mock_client.patch.call_args.kwargs["headers"]
             assert headers == {"X-API-Key": "my-api-key"}
 
+    def test_sandbox_overrides_take_precedence(self) -> None:
+        """SANDBOX_LANGSMITH_* override the shared key/endpoint for the proxy call."""
+        with (
+            patch("agent.integrations.langsmith.httpx.Client") as mock_client_cls,
+            patch.dict(
+                "os.environ",
+                {
+                    "LANGSMITH_API_KEY": "shared-key",
+                    "LANGSMITH_ENDPOINT": "https://shared.smith.langchain.com",
+                    "SANDBOX_LANGSMITH_API_KEY": "sandbox-key",
+                    "SANDBOX_LANGSMITH_ENDPOINT": "https://sandbox.smith.langchain.com",
+                },
+            ),
+        ):
+            mock_client = MagicMock()
+            mock_response = MagicMock()
+            mock_response.raise_for_status = MagicMock()
+            mock_client.patch.return_value = mock_response
+            mock_client_cls.return_value.__enter__ = MagicMock(return_value=mock_client)
+            mock_client_cls.return_value.__exit__ = MagicMock(return_value=False)
+
+            _configure_github_proxy("sandbox-abc", "token")
+
+            assert (
+                mock_client.patch.call_args.args[0]
+                == "https://sandbox.smith.langchain.com/v2/sandboxes/boxes/sandbox-abc"
+            )
+            assert mock_client.patch.call_args.kwargs["headers"] == {"X-API-Key": "sandbox-key"}
+
     def test_retries_transient_http_error(self) -> None:
         """Transient proxy API errors should be retried on the same sandbox."""
         request = httpx.Request(

tests/tools/test_linear_search_issues.py

@@ -0,0 +1,131 @@
+from __future__ import annotations
+
+import importlib
+from typing import Any
+
+import pytest
+
+from agent.utils import linear
+
+linear_search_tool = importlib.import_module("agent.tools.linear_search_issues")
+
+
+async def test_search_issues_returns_results_and_pagination(
+    monkeypatch: pytest.MonkeyPatch,
+) -> None:
+    captured: dict[str, Any] = {}
+
+    async def fake_graphql_request(
+        query: str, variables: dict[str, Any] | None = None
+    ) -> dict[str, Any]:
+        captured.update({"query": query, "variables": variables})
+        return {
+            "searchIssues": {
+                "nodes": [
+                    {
+                        "id": "issue-id",
+                        "identifier": "DCD-20",
+                        "title": "User-message styling improvement",
+                    }
+                ],
+                "totalCount": 12,
+                "pageInfo": {"hasNextPage": True, "endCursor": "next-page"},
+            }
+        }
+
+    monkeypatch.setattr(linear, "_graphql_request", fake_graphql_request)
+
+    result = await linear.search_issues(
+        "  user message styling  ",
+        team_id="team-id",
+        limit=5,
+        include_archived=True,
+        include_comments=True,
+        after="current-page",
+    )
+
+    assert "searchIssues" in captured["query"]
+    assert captured["variables"] == {
+        "query": "user message styling",
+        "filter": {"team": {"id": {"eq": "team-id"}}},
+        "limit": 5,
+        "includeArchived": True,
+        "includeComments": True,
+        "after": "current-page",
+    }
+    assert result == {
+        "issues": [
+            {
+                "id": "issue-id",
+                "identifier": "DCD-20",
+                "title": "User-message styling improvement",
+            }
+        ],
+        "total_count": 12,
+        "page_info": {"hasNextPage": True, "endCursor": "next-page"},
+    }
+
+
+async def test_search_issues_rejects_blank_query(monkeypatch: pytest.MonkeyPatch) -> None:
+    async def unexpected_request(*_args: Any, **_kwargs: Any) -> dict[str, Any]:
+        pytest.fail("GraphQL request should not be made")
+
+    monkeypatch.setattr(linear, "_graphql_request", unexpected_request)
+
+    result = await linear.search_issues("   ")
+
+    assert result == {"error": "Search query must not be empty"}
+
+
+@pytest.mark.parametrize("limit", [0, 51])
+async def test_search_issues_rejects_invalid_limit(
+    monkeypatch: pytest.MonkeyPatch, limit: int
+) -> None:
+    async def unexpected_request(*_args: Any, **_kwargs: Any) -> dict[str, Any]:
+        pytest.fail("GraphQL request should not be made")
+
+    monkeypatch.setattr(linear, "_graphql_request", unexpected_request)
+
+    result = await linear.search_issues("styling", limit=limit)
+
+    assert result == {"error": "Search limit must be between 1 and 50"}
+
+
+async def test_search_issues_propagates_graphql_errors(monkeypatch: pytest.MonkeyPatch) -> None:
+    async def fake_graphql_request(
+        _query: str, _variables: dict[str, Any] | None = None
+    ) -> dict[str, Any]:
+        return {"error": "rate limited"}
+
+    monkeypatch.setattr(linear, "_graphql_request", fake_graphql_request)
+
+    assert await linear.search_issues("styling") == {"error": "rate limited"}
+
+
+async def test_linear_search_issues_tool_delegates(monkeypatch: pytest.MonkeyPatch) -> None:
+    captured: dict[str, Any] = {}
+
+    async def fake_search_issues(**kwargs: Any) -> dict[str, Any]:
+        captured.update(kwargs)
+        return {"issues": []}
+
+    monkeypatch.setattr(linear_search_tool, "search_issues", fake_search_issues)
+
+    result = await linear_search_tool.linear_search_issues(
+        "styling",
+        team_id="team-id",
+        limit=20,
+        include_archived=True,
+        include_comments=True,
+        after="cursor",
+    )
+
+    assert result == {"issues": []}
+    assert captured == {
+        "query": "styling",
+        "team_id": "team-id",
+        "limit": 20,
+        "include_archived": True,
+        "include_comments": True,
+        "after": "cursor",
+    }

ui/src/features/agents/components/AgentGitPanel.tsx

@@ -88,9 +88,6 @@ function commonDirPrefix(paths: Array<string>): string {
 }
 
 const PANEL_STORAGE_WIDTH = "open-swe.gitpanel.width"
-const PANEL_STORAGE_COLLAPSED = "open-swe.gitpanel.collapsed"
-const COLLAPSED_STATE_TRUE = "1"
-const COLLAPSED_STATE_FALSE = "0"
 const PANEL_DEFAULT_WIDTH = 420
 const PANEL_MIN_WIDTH = 320
 // Keep at least this much room for the chat so the panel can grow to nearly the
@@ -119,23 +116,6 @@ function readStoredPanelWidth(): number {
   return clampPanelWidth(parsed)
 }
 
-export function readStoredPanelCollapsed(): boolean {
-  if (typeof window === "undefined") return true
-  // Default to collapsed until the user opens it once.
-  return (
-    window.localStorage.getItem(PANEL_STORAGE_COLLAPSED) !==
-    COLLAPSED_STATE_FALSE
-  )
-}
-
-export function writeStoredPanelCollapsed(collapsed: boolean): void {
-  if (typeof window === "undefined") return
-  window.localStorage.setItem(
-    PANEL_STORAGE_COLLAPSED,
-    collapsed ? COLLAPSED_STATE_TRUE : COLLAPSED_STATE_FALSE
-  )
-}
-
 function PanelResizeHandle({
   width,
   onResize,

ui/src/features/agents/components/AgentThreadView.tsx

@@ -12,10 +12,12 @@ import type { ModelSelection } from "@/features/agents/lib/provider/useModelOpti
 import {
   AgentGitPanel,
   PANEL_MIN_CHAT_WIDTH,
-  readStoredPanelCollapsed,
-  writeStoredPanelCollapsed,
 } from "@/features/agents/components/AgentGitPanel"
 import { AgentPromptBar } from "@/features/agents/components/AgentPromptBar"
+import {
+  readStoredPanelCollapsed,
+  writeStoredPanelCollapsed,
+} from "@/features/agents/lib/gitPanelPreferences"
 import { Messages } from "@/features/agents/components/messages"
 import { streamMessagesToUi } from "@/features/agents/lib/streamMessagesToUi"
 import { messageArrivalTimestamp } from "@/features/agents/lib/messageTimestamps"

ui/src/features/agents/components/AgentsThreadsPage.tsx

@@ -61,6 +61,10 @@ function triToBool(value: TriState): boolean | undefined {
   return undefined
 }
 
+function displayStatus(status: AgentStatus): string {
+  return STATUS_OPTIONS.find((option) => option.value === status)?.label ?? status
+}
+
 export function AgentsThreadsPage({
   filters,
   onFiltersChange,
@@ -279,8 +283,8 @@ function ThreadListItem({ thread }: { thread: AgentThread }) {
       <div className="min-w-0 flex-1">
         <p className="truncate text-sm text-[var(--ui-text)]">{thread.title}</p>
         <p className="truncate text-[11px] text-[var(--ui-text-dim)]">
-          {thread.repoFullName || "no repo"} · {thread.status}
+          {thread.repoFullName || "No repo"} · {displayStatus(thread.status)}
-          {isResolved ? " · resolved" : ""}
+          {isResolved ? " · Resolved" : ""}
         </p>
       </div>
       <button

ui/src/features/agents/components/WorkflowApprovalCard.tsx

@@ -75,11 +75,11 @@ export function WorkflowApprovalCard({
                   </div>
                   <p className="text-xs text-[var(--ui-text-dim)]">
                     {approval.repo || "Repository"} on{" "}
-                    {approval.branch || "current branch"} ·{" "}
+                    {approval.branch || "Current branch"} ·{" "}
                     {shortSha(approval.baseSha)} → {shortSha(approval.headSha)}
                   </p>
                   <p className="font-mono text-[0.68rem] break-all text-[var(--ui-text-dim)]">
-                    fingerprint: {approval.fingerprint}
+                    Fingerprint: {approval.fingerprint}
                   </p>
                 </div>
                 <div className="flex shrink-0 flex-wrap gap-2">

ui/src/features/agents/components/chat/CloudPromptBar.tsx

@@ -393,7 +393,7 @@ export const CloudPromptBar = memo(function CloudPromptBarComponent({
               >
                 <img
                   src={`data:${image.mimeType};base64,${image.base64}`}
-                  alt={image.fileName || "pending image"}
+                  alt={image.fileName || "Pending image"}
                   className="size-16 rounded-lg border border-[var(--ui-border)] object-cover"
                 />
                 <button

ui/src/features/agents/components/chat/ToolExecution.test.ts

@@ -0,0 +1,49 @@
+import { describe, expect, it } from "vitest";
+
+import { formatToolDisplay } from "./toolExecutionDisplay";
+
+describe("formatToolDisplay", () => {
+  const projectPath = "/workspace/open-swe";
+
+  it("renders read_file with the file_path alias consistently", () => {
+    expect(
+      formatToolDisplay(
+        "read_file /workspace/open-swe/AGENTS.md",
+        "read",
+        { file_path: "/workspace/open-swe/AGENTS.md" },
+        projectPath,
+      ),
+    ).toBe("Read AGENTS.md");
+  });
+
+  it("renders ls as a list operation with a relative path", () => {
+    expect(
+      formatToolDisplay(
+        "ls /workspace/open-swe/ui",
+        "read",
+        { path: "/workspace/open-swe/ui" },
+        projectPath,
+      ),
+    ).toBe("List ui");
+  });
+
+  it("renders search tools with their pattern", () => {
+    expect(
+      formatToolDisplay("grep", "search", { pattern: "tool_calls" }, projectPath),
+    ).toBe('Search "tool_calls"');
+  });
+
+  it("normalizes write_todos", () => {
+    expect(formatToolDisplay("write todos", "other", {}, projectPath)).toBe("Update todos");
+  });
+
+  it("sentence-cases raw tool names", () => {
+    expect(formatToolDisplay("enter_plan_mode", "other", {}, projectPath)).toBe(
+      "Enter plan mode",
+    );
+    expect(formatToolDisplay("save_plan", "other", {}, projectPath)).toBe("Save plan");
+    expect(formatToolDisplay("slack_thread_reply", "other", {}, projectPath)).toBe(
+      "Slack thread reply",
+    );
+  });
+});

ui/src/features/agents/components/chat/ToolExecution.tsx

@@ -1,7 +1,8 @@
 import { memo, useCallback, useLayoutEffect, useMemo, useRef, useState } from "react";
 import { MultiFileDiff } from "@pierre/diffs/react";
 import { DiffView } from "./DiffView";
-import type { AcpToolKind, ToolExecutionChunk } from "@/features/agents/lib/types";
+import { formatToolDisplay } from "./toolExecutionDisplay";
+import type { ToolExecutionChunk } from "@/features/agents/lib/types";
 import { useDiffOptions } from "@/features/agents/utils/diffUtils";
 import { countLineChanges } from "@/features/agents/utils/diffStats";
 
@@ -27,60 +28,6 @@ function getFileName(path: string): string {
   return parts[parts.length - 1] || path;
 }
 
-function formatToolDisplay(
-  title: string,
-  toolKind: AcpToolKind,
-  input: Record<string, unknown> | undefined,
-  projectPath?: string,
-): string {
-  const path = input?.path as string | undefined;
-  const pattern = input?.pattern as string | undefined;
-  const query = input?.query as string | undefined;
-  const url = input?.url as string | undefined;
-  const command = input?.command as string | undefined;
-
-  switch (toolKind) {
-    case "read": {
-      if (path) {
-        const displayPath = stripProjectPath(path, projectPath);
-        return `Read(${displayPath})`;
-      }
-      return title;
-    }
-    case "search": {
-      if (pattern) {
-        const truncated = pattern.length > 40 ? pattern.slice(0, 40) + "..." : pattern;
-        return `Search("${truncated}")`;
-      }
-      if (query) {
-        return `Search("${query.slice(0, 40)}${query.length > 40 ? "..." : ""}")`;
-      }
-      return title;
-    }
-    case "fetch": {
-      if (url) {
-        return `Fetch(${url.slice(0, 50)}${url.length > 50 ? "..." : ""})`;
-      }
-      return title;
-    }
-    case "execute": {
-      if (command) {
-        const truncated = command.length > 60 ? command.slice(0, 60) + "..." : command;
-        return `Shell(${truncated})`;
-      }
-      return title;
-    }
-    case "edit":
-    case "delete":
-    case "move":
-      return title;
-    case "think":
-      return "Thinking...";
-    default:
-      return title;
-  }
-}
-
 const InlineDiffCollapsible = memo(function InlineDiffCollapsible({
   filePath,
   fileName,

ui/src/features/agents/components/chat/toolExecutionDisplay.ts

@@ -0,0 +1,91 @@
+import { humanizeToolName } from "@/features/agents/lib/toolNames";
+import type { AcpToolKind } from "@/features/agents/lib/types";
+
+function stripProjectPath(path: string, projectPath?: string): string {
+  if (!projectPath || !path.startsWith(projectPath)) return path;
+  const relative = path.slice(projectPath.length);
+  return relative.replace(/^\/+/, "") || ".";
+}
+
+function firstStringArg(
+  input: Record<string, unknown> | undefined,
+  keys: Array<string>,
+): string | undefined {
+  if (!input) return undefined;
+  for (const key of keys) {
+    const value = input[key];
+    if (typeof value === "string" && value.trim()) return value.trim();
+  }
+  return undefined;
+}
+
+function truncateMiddle(value: string, maxLength: number): string {
+  return value.length > maxLength ? `${value.slice(0, maxLength)}...` : value;
+}
+
+function normalizedToolName(title: string): string {
+  return title.trim().split(/\s+/, 1)[0]?.toLowerCase() ?? "";
+}
+
+function humanizeToolTitle(title: string): string {
+  const trimmed = title.trim();
+  if (!trimmed) return "Tool";
+
+  const [name, ...rest] = trimmed.split(/\s+/);
+  const suffix = rest.join(" ");
+  if (name && suffix && /^(?:[./~]|[a-z]+:\/\/)/i.test(suffix)) {
+    return `${humanizeToolName(name)} ${suffix}`;
+  }
+  return humanizeToolName(trimmed);
+}
+
+export function formatToolDisplay(
+  title: string,
+  toolKind: AcpToolKind,
+  input: Record<string, unknown> | undefined,
+  projectPath?: string,
+): string {
+  const toolName = normalizedToolName(title);
+  const path = firstStringArg(input, ["path", "file_path", "target_file"]);
+  const pattern = firstStringArg(input, ["pattern"]);
+  const query = firstStringArg(input, ["query"]);
+  const url = firstStringArg(input, ["url"]);
+  const command = firstStringArg(input, ["command"]);
+
+  switch (toolKind) {
+    case "read": {
+      if (path) {
+        const displayPath = stripProjectPath(path, projectPath);
+        return toolName === "ls" ? `List ${displayPath}` : `Read ${displayPath}`;
+      }
+      return humanizeToolTitle(title);
+    }
+    case "search": {
+      if (pattern) return `Search "${truncateMiddle(pattern, 40)}"`;
+      if (query) return `Search "${truncateMiddle(query, 40)}"`;
+      if (path) return `Search ${stripProjectPath(path, projectPath)}`;
+      return humanizeToolTitle(title);
+    }
+    case "fetch": {
+      if (url) return `Fetch ${truncateMiddle(url, 50)}`;
+      return humanizeToolTitle(title);
+    }
+    case "execute": {
+      if (command) return `Shell ${truncateMiddle(command, 60)}`;
+      return humanizeToolTitle(title);
+    }
+    case "edit":
+    case "delete":
+    case "move":
+      return humanizeToolTitle(title);
+    case "think":
+      return "Thinking...";
+    default: {
+      if (toolName === "write_todos" || title.toLowerCase().startsWith("write todos")) {
+        return "Update todos";
+      }
+      if (toolName === "ls" && path) return `List ${stripProjectPath(path, projectPath)}`;
+      return humanizeToolTitle(title);
+    }
+  }
+}

ui/src/features/agents/components/messages/ThinkingSpinner.tsx

@@ -3,17 +3,17 @@ import { useEffect, useRef, useState } from "react";
 import { formatElapsed } from "@/lib/utils";
 
 const BUSY_TEXTS: Array<{ present: string; past: string }> = [
-  { present: "vibing...", past: "Vibed" },
+  { present: "Vibing...", past: "Vibed" },
-  { present: "noodling...", past: "Noodled" },
+  { present: "Noodling...", past: "Noodled" },
-  { present: "pondering...", past: "Pondered" },
+  { present: "Pondering...", past: "Pondered" },
-  { present: "thinking really hard...", past: "Thought really hard" },
+  { present: "Thinking really hard...", past: "Thought really hard" },
-  { present: "spinning up...", past: "Spun up" },
+  { present: "Spinning up...", past: "Spun up" },
-  { present: "connecting the dots...", past: "Connected the dots" },
+  { present: "Connecting the dots...", past: "Connected the dots" },
-  { present: "brewing ideas...", past: "Brewed ideas" },
+  { present: "Brewing ideas...", past: "Brewed ideas" },
-  { present: "cooking...", past: "Cooked" },
+  { present: "Cooking...", past: "Cooked" },
-  { present: "crunching...", past: "Crunched" },
+  { present: "Crunching...", past: "Crunched" },
-  { present: "scheming...", past: "Schemed" },
+  { present: "Scheming...", past: "Schemed" },
-  { present: "processing...", past: "Processed" },
+  { present: "Processing...", past: "Processed" },
 ];
 
 const THINKING_SETTLE_MS = 300;

ui/src/features/agents/components/subagents/SubagentActivity.tsx

@@ -1,9 +1,7 @@
 import { useStreamContext as useAgentThreadStream, useToolCalls } from "@langchain/react"
 import { Check, Loader2, X } from "lucide-react"
 
-function humanizeToolName(name: string): string {
+import { humanizeToolName } from "@/features/agents/lib/toolNames"
-  return name.replace(/_/g, " ").trim() || "tool"
-}
 
 /**
  * Live status for a single subagent, read straight from the SDK's scoped

ui/src/features/agents/experiments/PromptBar.tsx

@@ -528,7 +528,7 @@ export const PromptBar = memo(function PromptBar({
             <div key={i} className="relative group">
               <img
                 src={`data:${img.mimeType};base64,${img.base64}`}
-                alt={img.fileName || "pending image"}
+                alt={img.fileName || "Pending image"}
                 className="w-16 h-16 object-cover rounded border border-gray-600"
               />
               <button

ui/src/features/agents/lib/gitPanelPreferences.test.ts

@@ -0,0 +1,58 @@
+/** @vitest-environment jsdom */
+
+import { beforeEach, describe, expect, it, vi } from "vitest"
+
+import {
+  readStoredPanelCollapsed,
+  writeStoredPanelCollapsed,
+} from "./gitPanelPreferences"
+
+function mockViewport(matches: boolean): void {
+  Object.defineProperty(window, "matchMedia", {
+    configurable: true,
+    writable: true,
+    value: vi.fn().mockImplementation((query: string) => ({
+      matches,
+      media: query,
+      onchange: null,
+      addListener: vi.fn(),
+      removeListener: vi.fn(),
+      addEventListener: vi.fn(),
+      removeEventListener: vi.fn(),
+      dispatchEvent: vi.fn(),
+    })),
+  })
+}
+
+beforeEach(() => {
+  window.localStorage.clear()
+  mockViewport(false)
+})
+
+describe("git panel collapsed preference", () => {
+  it("defaults to collapsed before really wide screens", () => {
+    mockViewport(false)
+
+    expect(readStoredPanelCollapsed()).toBe(true)
+  })
+
+  it("defaults to expanded on really wide screens", () => {
+    mockViewport(true)
+
+    expect(readStoredPanelCollapsed()).toBe(false)
+  })
+
+  it("keeps an explicit collapsed preference on really wide screens", () => {
+    mockViewport(true)
+    writeStoredPanelCollapsed(true)
+
+    expect(readStoredPanelCollapsed()).toBe(true)
+  })
+
+  it("keeps an explicit expanded preference before really wide screens", () => {
+    mockViewport(false)
+    writeStoredPanelCollapsed(false)
+
+    expect(readStoredPanelCollapsed()).toBe(false)
+  })
+})

ui/src/features/agents/lib/gitPanelPreferences.ts

@@ -0,0 +1,20 @@
+const PANEL_STORAGE_COLLAPSED = "open-swe.gitpanel.collapsed"
+const COLLAPSED_STATE_TRUE = "1"
+const COLLAPSED_STATE_FALSE = "0"
+const PANEL_DEFAULT_EXPANDED_MEDIA_QUERY = "(min-width: 1536px)"
+
+export function readStoredPanelCollapsed(): boolean {
+  if (typeof window === "undefined") return true
+  const stored = window.localStorage.getItem(PANEL_STORAGE_COLLAPSED)
+  if (stored === COLLAPSED_STATE_TRUE) return true
+  if (stored === COLLAPSED_STATE_FALSE) return false
+  return !window.matchMedia(PANEL_DEFAULT_EXPANDED_MEDIA_QUERY).matches
+}
+
+export function writeStoredPanelCollapsed(collapsed: boolean): void {
+  if (typeof window === "undefined") return
+  window.localStorage.setItem(
+    PANEL_STORAGE_COLLAPSED,
+    collapsed ? COLLAPSED_STATE_TRUE : COLLAPSED_STATE_FALSE
+  )
+}

ui/src/features/agents/lib/streamMessagesToUi.ts

@@ -1,14 +1,16 @@
 import { AIMessage, HumanMessage, ToolMessage } from "@langchain/core/messages";
 import { messageArrivalTimestamp } from "./messageTimestamps";
+import { humanizeToolName } from "./toolNames";
 import type { BaseMessage, ContentBlock } from "@langchain/core/messages";
 import type { AssembledToolCall, SubagentDiscoverySnapshot } from "@langchain/react";
 
 import type { Chunk, DiffData, Message, ToolExecutionChunk } from "./types";
 
-const READ_TOOLS = new Set(["read_file", "read", "glob", "grep"]);
+const READ_TOOLS = new Set(["read_file", "read", "ls"]);
 const EDIT_TOOLS = new Set(["write_file", "edit_file", "str_replace", "write", "edit", "patch"]);
 const EXECUTE_TOOLS = new Set(["execute", "bash", "shell", "run_terminal_cmd"]);
-const SEARCH_TOOLS = new Set(["glob", "grep", "web_search", "fetch_url", "search"]);
+const SEARCH_TOOLS = new Set(["glob", "grep", "web_search", "search"]);
+const FETCH_TOOLS = new Set(["fetch", "fetch_url", "http_request"]);
 const INTERNAL_TOOLS = new Set(["confirming_completion", "no_op"]);
 
 type ToolKind = ToolExecutionChunk["toolKind"];
@@ -19,14 +21,15 @@ function toolKind(name: string): ToolKind {
   if (lowered === "task") return "task";
   if (lowered === "slack_thread_reply") return "slack";
   if (lowered === "linear_comment") return "linear";
+  if (lowered === "write_todos") return "other";
   if (EDIT_TOOLS.has(lowered) || ["edit", "write", "replace"].some((t) => lowered.includes(t))) {
     return "edit";
   }
   if (EXECUTE_TOOLS.has(lowered)) return "execute";
+  if (FETCH_TOOLS.has(lowered)) return "fetch";
   if (SEARCH_TOOLS.has(lowered)) return "search";
   if (READ_TOOLS.has(lowered) || lowered.includes("read")) return "read";
   if (lowered === "think") return "think";
-  if (["fetch", "fetch_url", "http_request"].includes(lowered)) return "fetch";
   return "other";
 }
 
@@ -37,7 +40,7 @@ function toolTitle(name: string, args: Record<string, unknown>): string {
   if (typeof command === "string" && command.trim()) {
     return command.trim().split("\n")[0]?.slice(0, 120) ?? "";
   }
-  return name.replace(/_/g, " ").trim() || "Tool";
+  return humanizeToolName(name);
 }
 
 function parseToolArgs(raw: unknown): Record<string, unknown> {

ui/src/features/agents/lib/toolNames.ts

@@ -0,0 +1,10 @@
+export function humanizeToolName(name: string, fallback = "Tool"): string {
+  const normalized = name
+    .replace(/[_-]+/g, " ")
+    .trim()
+    .replace(/\s+/g, " ")
+    .toLowerCase()
+
+  if (!normalized) return fallback
+  return `${normalized.charAt(0).toUpperCase()}${normalized.slice(1)}`
+}