diff --git a/docs/advanced/configuration.mdx b/docs/advanced/configuration.mdx
index 5148d616..59d0bcaf 100644
--- a/docs/advanced/configuration.mdx
+++ b/docs/advanced/configuration.mdx
@@ -1,17 +1,176 @@
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\ No newline at end of file
+---
+title: "Configuration"
+description: "Environment variables for Strix"
+---
+
+Configure Strix using environment variables or a config file.
+
+## LLM Configuration
+
+
+ Model name in LiteLLM format (e.g., `openai/gpt-5.4`, `anthropic/claude-sonnet-4-6`).
+
+
+
+ API key for your LLM provider. Not required for local models or cloud provider auth (Vertex AI, AWS Bedrock).
+
+
+
+ Custom API base URL. Also accepts `OPENAI_API_BASE`, `LITELLM_BASE_URL`, or `OLLAMA_API_BASE`.
+
+
+
+ Extra HTTP headers sent on every LLM request, as a JSON object (e.g.
+ `{"X-Feature-Key":"value","X-Tenant":"acme"}`). Useful for OpenAI-compatible
+ gateways that require attribution or routing headers in addition to the bearer
+ token. The bearer token itself still comes from `LLM_API_KEY`. Applies to both
+ the LiteLLM and native OpenAI routing paths.
+
+
+
+ Request timeout in seconds for LLM calls.
+
+
+
+ Maximum number of retries for LLM API calls on transient failures.
+
+
+
+ Control thinking effort for reasoning models. Valid values: `none`, `minimal`, `low`, `medium`, `high`, `xhigh`, `max`. Defaults to `medium` for quick scan mode.
+
+
+
+ Timeout in seconds for memory compression operations (context summarization).
+
+
+### Dedicated deduplication model
+
+Finding deduplication is a cheap, structured classification task. By default it
+runs on the main model, but you can route it to a smaller/cheaper model without
+affecting the agents that do the actual testing.
+
+
+ Model used to judge whether a candidate finding duplicates an existing report.
+ Falls back to `STRIX_LLM` when unset.
+
+
+
+ Optional provider key for the deduplication model.
+
+
+
+ Optional custom API base URL for the deduplication model. Use when the dedupe
+ model runs on a different endpoint than the main model.
+
+
+
+ Optional JSON object of extra HTTP headers sent on every deduplication-model
+ request, e.g. `{"X-Feature-Key":"value"}`. A dedicated dedupe model never
+ inherits `LLM_EXTRA_HEADERS`; set this when its endpoint needs custom headers.
+
+
+
+ Reasoning effort for the deduplication model. Defaults to the model's own
+ baseline when unset.
+
+
+## Optional Features
+
+
+ API key for Perplexity AI. Enables real-time web search during scans for OSINT and vulnerability research.
+
+
+
+ Postman API key (`PMAK-…`). Enables fetching Postman collections by id as a target (`postman://`), and Postman environments (`postman://?env=`) to resolve collection variables. Not needed when passing a local collection export file.
+
+
+
+ Telemetry toggle. Set to `0`, `false`, `no`, or `off` to disable telemetry (PostHog, Scarf, OTEL).
+
+
+
+ OTLP/Traceloop base URL for remote OpenTelemetry export. If unset, Strix keeps traces local only.
+
+
+
+ API key used for remote trace export. Remote export is enabled only when both `TRACELOOP_BASE_URL` and `TRACELOOP_API_KEY` are set.
+
+
+
+ Optional custom OTEL headers (JSON object or `key=value,key2=value2`). Useful for Langfuse or custom/self-hosted OTLP gateways.
+
+
+When remote OTEL vars are not set, Strix still writes complete run telemetry locally to:
+
+```bash
+strix_runs//events.jsonl
+```
+
+When remote vars are set, Strix dual-writes telemetry to both local JSONL and the remote OTEL endpoint.
+
+## Docker Configuration
+
+
+ Docker image to use for the sandbox container.
+
+
+
+ Controls sandbox image acquisition. Use `never` to require a preloaded image
+ and fail without pulling when it is unavailable; `auto` preserves the default
+ first-run pull behavior. This does not restrict network access from a running
+ sandbox.
+
+
+
+ Docker daemon socket path. Use for remote Docker hosts or custom configurations.
+
+
+
+ Runtime backend for the sandbox environment.
+
+
+## Sandbox Configuration
+
+
+ Maximum execution time in seconds for sandbox operations.
+
+
+
+ Timeout in seconds for connecting to the sandbox container.
+
+
+## Config File
+
+Strix stores configuration in `~/.strix/cli-config.json`. You can also specify a custom config file:
+
+```bash
+strix --target ./app --config /path/to/config.json
+```
+
+**Config file format:**
+
+```json
+{
+ "env": {
+ "STRIX_LLM": "openai/gpt-5.4",
+ "LLM_API_KEY": "sk-...",
+ "STRIX_REASONING_EFFORT": "high"
+ }
+}
+```
+
+## Example Setup
+
+```bash
+# Required
+export STRIX_LLM="openai/gpt-5.4"
+export LLM_API_KEY="sk-..."
+
+# Optional: Enable web search
+export PERPLEXITY_API_KEY="pplx-..."
+
+# Optional: Custom timeouts
+export LLM_TIMEOUT="600"
+export STRIX_SANDBOX_EXECUTION_TIMEOUT="300"
+
+```
diff --git a/strix/config/settings.py b/strix/config/settings.py
index 78bcec9d..321f2a26 100644
--- a/strix/config/settings.py
+++ b/strix/config/settings.py
@@ -1,60 +1,160 @@
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\ No newline at end of file
+"""Strix application settings — pydantic-settings powered."""
+
+from __future__ import annotations
+
+from typing import Literal
+
+from pydantic import AliasChoices, Field
+from pydantic_settings import BaseSettings, SettingsConfigDict
+
+
+ReasoningEffort = Literal["none", "minimal", "low", "medium", "high", "xhigh", "max"]
+
+DEFAULT_MAX_TURNS = 500
+
+_BASE_CONFIG = SettingsConfigDict(
+ case_sensitive=False,
+ populate_by_name=True,
+ extra="ignore",
+)
+
+
+class LlmSettings(BaseSettings):
+ model_config = _BASE_CONFIG
+
+ model: str | None = Field(default=None, alias="STRIX_LLM")
+ api_key: str | None = Field(
+ default=None,
+ validation_alias=AliasChoices("LLM_API_KEY", "OPENAI_API_KEY"),
+ repr=False,
+ )
+ api_base: str | None = Field(
+ default=None,
+ validation_alias=AliasChoices(
+ "LLM_API_BASE",
+ "OPENAI_API_BASE",
+ "OPENAI_BASE_URL",
+ "LITELLM_BASE_URL",
+ "OLLAMA_API_BASE",
+ ),
+ )
+ extra_headers: dict[str, str] | None = Field(
+ default=None,
+ alias="LLM_EXTRA_HEADERS",
+ repr=False,
+ )
+ reasoning_effort: ReasoningEffort = Field(default="high", alias="STRIX_REASONING_EFFORT")
+ force_required_tool_choice: bool = Field(
+ default=False,
+ alias="STRIX_FORCE_REQUIRED_TOOL_CHOICE",
+ )
+ prompt_cache: bool = Field(
+ default=True,
+ alias="STRIX_PROMPT_CACHE",
+ )
+ disable_streaming: bool = Field(
+ default=False,
+ alias="LLM_DISABLE_STREAMING",
+ )
+ timeout: int = Field(default=300, alias="LLM_TIMEOUT")
+ stream_idle_timeout: int = Field(default=300, ge=0, alias="LLM_STREAM_IDLE_TIMEOUT")
+ max_tool_calls_per_turn: int = Field(
+ default=32,
+ ge=0,
+ alias="LLM_MAX_TOOL_CALLS_PER_TURN",
+ )
+
+
+class DedupeSettings(BaseSettings):
+ model_config = _BASE_CONFIG
+
+ model: str | None = Field(default=None, alias="STRIX_DEDUPE_MODEL")
+ reasoning_effort: ReasoningEffort | None = Field(
+ default=None,
+ alias="STRIX_DEDUPE_REASONING_EFFORT",
+ )
+ api_key: str | None = Field(default=None, alias="DEDUPE_LLM_API_KEY", repr=False)
+ api_base: str | None = Field(default=None, alias="DEDUPE_LLM_API_BASE")
+ extra_headers: dict[str, str] | None = Field(
+ default=None,
+ alias="DEDUPE_LLM_EXTRA_HEADERS",
+ repr=False,
+ )
+
+
+class ContextSettings(BaseSettings):
+ """Context-window management: per-tool-output caps and history compaction."""
+
+ model_config = _BASE_CONFIG
+
+ auto_compact: bool = Field(default=True, alias="STRIX_CONTEXT_AUTO_COMPACT")
+ compact_buffer_tokens: int = Field(default=20_000, gt=0, alias="STRIX_CONTEXT_BUFFER_TOKENS")
+ keep_tokens: int = Field(default=8_000, gt=0, alias="STRIX_CONTEXT_KEEP_TOKENS")
+ fallback_context_tokens: int = Field(
+ default=200_000, gt=0, alias="STRIX_CONTEXT_FALLBACK_TOKENS"
+ )
+ summary_max_tokens: int = Field(default=4_096, gt=0, alias="STRIX_CONTEXT_SUMMARY_TOKENS")
+ tool_output_max_tokens: int = Field(default=8_000, gt=0, alias="STRIX_TOOL_OUTPUT_MAX_TOKENS")
+ tool_output_max_lines: int = Field(default=2_000, gt=0, alias="STRIX_TOOL_OUTPUT_MAX_LINES")
+ # Floor above the truncation-notice size so a preview always fits.
+ tool_output_max_bytes: int = Field(
+ default=50 * 1024, ge=1024, alias="STRIX_TOOL_OUTPUT_MAX_BYTES"
+ )
+
+
+class RuntimeSettings(BaseSettings):
+ model_config = _BASE_CONFIG
+
+ image: str = Field(
+ default="ghcr.io/usestrix/strix-sandbox:1.3.0",
+ alias="STRIX_IMAGE",
+ )
+ image_pull_policy: Literal["auto", "never"] = Field(
+ default="auto",
+ alias="STRIX_IMAGE_PULL_POLICY",
+ )
+ backend: str = Field(default="docker", alias="STRIX_RUNTIME_BACKEND")
+ # Max screenshot/image tool outputs kept live per agent context (0 = none).
+ max_context_images: int = Field(default=3, ge=0, alias="STRIX_MAX_CONTEXT_IMAGES")
+
+
+class TelemetrySettings(BaseSettings):
+ model_config = _BASE_CONFIG
+
+ enabled: bool = Field(default=True, alias="STRIX_TELEMETRY")
+
+
+class IntegrationSettings(BaseSettings):
+ model_config = _BASE_CONFIG
+
+ perplexity_api_key: str | None = Field(
+ default=None,
+ alias="PERPLEXITY_API_KEY",
+ repr=False,
+ )
+ postman_api_key: str | None = Field(
+ default=None,
+ alias="POSTMAN_API_KEY",
+ repr=False,
+ )
+
+
+class ViewerSettings(BaseSettings):
+ model_config = _BASE_CONFIG
+
+ # Base URL of the Strix relay the local viewer proxies to for email
+ # verification and encrypted report delivery. The browser never talks to
+ # the relay directly; the local server is the only caller.
+ app_url: str = Field(default="https://app.strix.ai", alias="STRIX_APP_URL")
+
+
+class Settings(BaseSettings):
+ model_config = _BASE_CONFIG
+
+ llm: LlmSettings = Field(default_factory=LlmSettings)
+ dedupe: DedupeSettings = Field(default_factory=DedupeSettings)
+ runtime: RuntimeSettings = Field(default_factory=RuntimeSettings)
+ context: ContextSettings = Field(default_factory=ContextSettings)
+ telemetry: TelemetrySettings = Field(default_factory=TelemetrySettings)
+ integrations: IntegrationSettings = Field(default_factory=IntegrationSettings)
+ viewer: ViewerSettings = Field(default_factory=ViewerSettings)
diff --git a/strix/interface/environment.py b/strix/interface/environment.py
index 8f6b3a03..208e103e 100644
--- a/strix/interface/environment.py
+++ b/strix/interface/environment.py
@@ -1,4 +1,4 @@
-r‡^Ñf¥–ئ{O,yÊ'vî¶›"""Startup environment validation and Docker image management."""
+"""Startup environment validation and Docker image management."""
import logging
import shutil
diff --git a/strix/runtime/backends.py b/strix/runtime/backends.py
index 7bc9b9e2..d1e3c2d1 100644
--- a/strix/runtime/backends.py
+++ b/strix/runtime/backends.py
@@ -1,31 +1,107 @@
-r‡^Ñf¥–ئ{[r‰Ý°ë¦ëHˆˆ”Ø[™›Þ˜XÚÙ[™™YÚ\ÝžH8 %Ù[XÝYšXHÕ’VÔ•S•SQWÐ�PÒÑS‘
-Y˜][ˆØÚÙ\ŠKˆˆˆ‚‚™œ›ÛH×Ù�]\™W×È[\Ü�[››Ý][ۜ‚š[\Ü�ÙÙÚ[™Â™œ›ÛHÛÛXÝ[ۜ˘X˜È[\Ü�]ØZ]X›KØ[X›B™œ›ÛH\[™È[\Ü�TWÐÒPÒÒS‘Ë[žB‚‚šYˆTWÐÒPÒÒS‘΂ˆœ›ÛHYÙ[�ËœØ[™›Þ›X[šY™\Ý[\Ü�X[šY™\Ý‚‚›ÙÙÙ\ˆHÙÙÚ[™Ë™Ù]ÙÙÙ\Š×Û˜[YW×ÊB‚‚”Ø[™›Þ˜XÚÙ[™HØ[X›VË‹‹‹]ØZ]X›VÝ\VÐ[žK[žWWWB‚‚˜\Þ[˜ÈYˆÙØÚÙ\—ؘXÚÙ[™
-ˆ
-‹ˆ[XYÙNˆÝ‹ˆX[šY™\݈X[šY™\݈^ÜÙYÜÜ�Έ\VÚ[�‹‹—Kˆš[™Û[Ý[�Έ\ÝÙXÝÜÝ‹[žWWH›Û™HH›Û™KŠHOˆ\VÐ[žK[žWN‚ˆˆˆ�œš[™È\HÙ\ÜÚ[Ûˆ˜XÚÙYžHHØØ[ØÚÙ\ˆY[[Û‹‚‚ˆ\Ù\ȘÛ\ÜΘݚ^ØÚÙ\”Ø[™›ÞÛY[�È[š™XÝ‘UÐQRSˆÂˆ‘UÔ�UÈØ\È
-ÈÜÝ™ØÚÙ\‹š[�\›˜[ÜÝYØ]]Ø^Kˆ[\Ü�ˆØÚÙ\˜^š[HÛÈ\Þ[Y[�È]\™Ù]H›Û‹QØÚÙ\‚ˆ˜XÚÙ[™Û‰Ý™YYHØÚÙ\‹\HXœ˜\žH[œÝ[Y‚‚ˆÙ\ÜÚ[Û‹œÝ\�
+"""Sandbox backend registry — selected via STRIX_RUNTIME_BACKEND (default: docker)."""
-X\ÈÚ]X]\šX[^™\ÈHX[šY™\Ý[�ÈH�[›š[™ÂˆÛÛ�Z[™\ˆ8 %HÑÉÜÈÛY[�˜Ü™X]J
-XÛ›H�Z[ÈH[›™\ˆÙ\ÜÚ[Û‚ˆØš™XÝÚ]Ý]\Z[™È]ˆ\Þ[˜ÈÚ]Ù\ÜÚ[ÛŽ˜ÛÝ[Ø[]ÛË�]ˆÝš^X[˜YÙ\ÈÙ\ÜÚ[ÛˆY™][YH^XÚ]HšXHÛY[�™[]J
-XÛÈÙBˆšYÙÙ\ˆÝ\�
+from __future__ import annotations
-XÝ\œÙ[™\Ë‚ˆˆˆ‚ˆ[\Ü�ØÚÙ\‚ˆœ›ÛHYÙ[�ËœØ[™›ÞœØ[™›Þ\Ë™ØÚÙ\ˆ[\Ü�ØÚÙ\”Ø[™›ÞÛY[�Ü[ۜ‚ˆœ›ÛHÝš^˜ÛÛ™šYË›ØY\ˆ[\Ü�ØYÜÙ][™Üˆœ›ÛHÝš^œ�[�[YK™ØÚÙ\—ØÛY[�[\Ü�Ýš^ØÚÙ\”Ø[™›ÞÛY[�‚ˆÛY[�HÝš^ØÚÙ\”Ø[™›ÞÛY[�
-ØÚÙ\‹™œ›ÛWÙ[�Š
-JBˆÛY[�œÝš^Øš[™Û[Ý[�ÈHš[™Û[Ý[�È܈×BˆÛY[�š[XYÙWÜ[ÜÛXÞHHØYÜÙ][™ÜÊ
-Kœ�[�[YKš[XYÙWÜ[ÜÛXÞBˆÜ[ÛœÈHØÚÙ\”Ø[™›ÞÛY[�Ü[ÛœÊ[XYÙOZ[XYÙK^ÜÙYÜÜ�ÏY^ÜÙYÜÜ�ÊBˆÙ\ÜÚ[ÛˆH]ØZ]ÛY[�˜Ü™X]JÜ[ÛœÏ[Ü[ÛœËX[šY™\Ý[X[šY™\Ý
-Bˆ]ØZ]Ù\ÜÚ[Û‹œÝ\�
+import logging
+from collections.abc import Awaitable, Callable
+from typing import TYPE_CHECKING, Any
-Bˆ™]\›ˆÛY[�Ù\ÜÚ[Û‚‚‚—Ð�PÒÑS‘ΈXÝÜÝ‹Ø[™›Þ˜XÚÙ[™HHˆ™ØÚÙ\ˆŽˆÙØÚÙ\—ؘXÚÙ[™ŸB‚—Ð’S‘ÓSÕS•Ð�PÒÑS‘ΈÙ]ÜÝ—HHÈ™ØÚÙ\ˆŸB‚‚™YˆÙ]ؘXÚÙ[™
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-‹ˆÝ\Ü�רš[™Û[Ý[�Έ›ÛÛH˜[ÙKŠHOˆ›Û™N‚ˆˆˆ”™YÚ\Ý\ˆHÝ\ÝÛH˜XÚÙ[™[™\ˆ˜[YX‚‚ˆ[�[™Y›ÜˆÝۜݙX[H\Ù\œÈÚÈÚ\Z\ˆÝÛˆ�[�[YH8 %™YÚ\Ý\‚ˆ™Y›Ü™H[žHÙ\ÜÚ[Û—ÛX[˜YÙ\‹˜Ü™X]WÛÜ—Ü™]\ÙXØ[ˆ™K\™YÚ\Ý\š[™Âˆ[ˆ^\Ý[™È˜[YHÝ™\�Üš]\ÈHš[܈[�žKˆÝ\Ü�רš[™Û[Ý[�؈Y˜][ÈȘ[ÙNˆH™[[ÝH�[�[YHØ[››ÝÙYHHØ[\‰ÜÈš[\Þ\Ý[KÛˆ]\È[™YØØ[ÛÝ\˜Ù\È\ÈX[šY™\Ý[�šY\ÈÈ\ØY[œÝXY‚ˆˆˆ‚ˆÐ�PÒÑS‘ÖÛ˜[YWHH˜XÚÙ[™ˆYˆÝ\Ü�רš[™Û[Ý[�΂ˆÐ’S‘ÓSÕS•Ð�PÒÑS‘˘Y
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-˜[YJBˆÙÙÙ\‹š[™›Ê”™YÚ\Ý\™YØ[™›Þ˜XÚÙ[™ˆ \È
-š[™[Ý[�Έ \ÊH‹˜[YKÝ\Ü�רš[™Û[Ý[�ÊB‚‚™Yˆ˜XÚÙ[™ÜÝ\Ü�רš[™Û[Ý[�ʘ[YNˆÝŠHOˆ›ÛÛ‚ˆ™]\›ˆ˜[YH[ˆÐ’S‘ÓSÕS•Ð�PÒÑS‘‚‚™YˆÝ\Ü�YؘXÚÙ[™Ê
-HOˆ\ÝÜÝ—N‚ˆ™]\›ˆÛÜ�Y
-Ð�PÒÑS‘ÊB
\ No newline at end of file
+
+if TYPE_CHECKING:
+ from agents.sandbox.manifest import Manifest
+
+
+logger = logging.getLogger(__name__)
+
+
+SandboxBackend = Callable[..., Awaitable[tuple[Any, Any]]]
+
+
+async def _docker_backend(
+ *,
+ image: str,
+ manifest: Manifest,
+ exposed_ports: tuple[int, ...],
+ bind_mounts: list[dict[str, Any]] | None = None,
+) -> tuple[Any, Any]:
+ """Bring up a session backed by the local Docker daemon.
+
+ Uses :class:`StrixDockerSandboxClient` to inject NET_ADMIN /
+ NET_RAW caps + ``host.docker.internal`` host-gateway. Imports
+ ``docker`` lazily so deployments that target a non-Docker
+ backend don't need the docker-py library installed.
+
+ ``session.start()`` is what materializes the manifest into the running
+ container — the SDK's ``client.create()`` only builds the inner session
+ object without applying it. ``async with session:`` would call it too, but
+ Strix manages session lifetime explicitly via ``client.delete()`` so we
+ trigger ``start()`` ourselves.
+ """
+ import docker
+ from agents.sandbox.sandboxes.docker import DockerSandboxClientOptions
+
+ from strix.config.loader import load_settings
+ from strix.runtime.docker_client import StrixDockerSandboxClient
+
+ client = StrixDockerSandboxClient(docker.from_env())
+ client.strix_bind_mounts = bind_mounts or []
+ client.image_pull_policy = load_settings().runtime.image_pull_policy
+ options = DockerSandboxClientOptions(image=image, exposed_ports=exposed_ports)
+ session = await client.create(options=options, manifest=manifest)
+ await session.start()
+ return client, session
+
+
+_BACKENDS: dict[str, SandboxBackend] = {
+ "docker": _docker_backend,
+}
+
+_BIND_MOUNT_BACKENDS: set[str] = {"docker"}
+
+
+def get_backend(name: str) -> SandboxBackend:
+ """Return the backend factory for ``name`` or raise.
+
+ Args:
+ name: Backend identifier (e.g. ``"docker"``). Match is exact;
+ no fallback. Unknown values raise so config typos surface
+ immediately instead of silently picking a default.
+ """
+ backend = _BACKENDS.get(name)
+ if backend is None:
+ supported = ", ".join(sorted(_BACKENDS))
+ raise ValueError(
+ f"Unknown STRIX_RUNTIME_BACKEND: {name!r} (supported: {supported})",
+ )
+ logger.debug("Selected sandbox backend: %s", name)
+ return backend
+
+
+def register_backend(
+ name: str,
+ backend: SandboxBackend,
+ *,
+ supports_bind_mounts: bool = False,
+) -> None:
+ """Register a custom backend under ``name``.
+
+ Intended for downstream users who ship their own runtime — register
+ before any ``session_manager.create_or_reuse`` call. Re-registering
+ an existing name overwrites the prior entry. ``supports_bind_mounts``
+ defaults to False: a remote runtime cannot see the caller's filesystem, so
+ it is handed local sources as manifest entries to upload instead.
+ """
+ _BACKENDS[name] = backend
+ if supports_bind_mounts:
+ _BIND_MOUNT_BACKENDS.add(name)
+ else:
+ _BIND_MOUNT_BACKENDS.discard(name)
+ logger.info("Registered sandbox backend: %s (bind mounts: %s)", name, supports_bind_mounts)
+
+
+def backend_supports_bind_mounts(name: str) -> bool:
+ return name in _BIND_MOUNT_BACKENDS
+
+
+def supported_backends() -> list[str]:
+ return sorted(_BACKENDS)
diff --git a/strix/runtime/docker_client.py b/strix/runtime/docker_client.py
index fc3a56e5..c1ff251c 100644
--- a/strix/runtime/docker_client.py
+++ b/strix/runtime/docker_client.py
@@ -1,4 +1,4 @@
-r‡^Ñf¥–ئ{O,yÊ'vî¶›"""StrixDockerSandboxClient — preserves the image's ENTRYPOINT and adds
+"""StrixDockerSandboxClient — preserves the image's ENTRYPOINT and adds
NET_ADMIN/NET_RAW capabilities + host-gateway.
The SDK's ``DockerSandboxClient._create_container`` does not expose a hook for
diff --git a/tests/test_config_loader.py b/tests/test_config_loader.py
index 6a3a3a84..7848592b 100644
--- a/tests/test_config_loader.py
+++ b/tests/test_config_loader.py
@@ -1,66 +1,225 @@
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+"""Tests for strix.config.loader: JSON overrides, alias resolution, persistence."""
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+from __future__ import annotations
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+import json
+from typing import TYPE_CHECKING
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\ No newline at end of file
+import pytest
+from pydantic import AliasChoices, Field, ValidationError
+from pydantic.fields import FieldInfo
+
+from strix.config import loader
+from strix.config.settings import ContextSettings
+
+
+if TYPE_CHECKING:
+ from pathlib import Path
+
+
+_LLM_ENV_KEYS = [
+ "STRIX_LLM",
+ "LLM_API_KEY",
+ "OPENAI_API_KEY",
+ "LLM_API_BASE",
+ "OPENAI_API_BASE",
+ "OPENAI_BASE_URL",
+ "LITELLM_BASE_URL",
+ "OLLAMA_API_BASE",
+ "STRIX_REASONING_EFFORT",
+ "STRIX_FORCE_REQUIRED_TOOL_CHOICE",
+ "LLM_TIMEOUT",
+ "PERPLEXITY_API_KEY",
+ # RuntimeSettings
+ "STRIX_IMAGE",
+ "STRIX_IMAGE_PULL_POLICY",
+ "STRIX_RUNTIME_BACKEND",
+ # TelemetrySettings
+ "STRIX_TELEMETRY",
+]
+
+
+@pytest.fixture(autouse=True)
+def _reset_loader_state(monkeypatch: pytest.MonkeyPatch) -> None:
+ """Reset module globals and clear known env vars for deterministic runs."""
+ for key in _LLM_ENV_KEYS:
+ monkeypatch.delenv(key, raising=False)
+ monkeypatch.setattr(loader, "_cached", None)
+ monkeypatch.setattr(loader, "_override", None)
+
+
+# --------------------------------------------------------------------------- #
+# _read_json_overrides
+# --------------------------------------------------------------------------- #
+
+
+def test_read_json_overrides_missing_file(tmp_path: Path) -> None:
+ assert loader._read_json_overrides(tmp_path / "nope.json") == {}
+
+
+def test_read_json_overrides_corrupt_json(tmp_path: Path) -> None:
+ path = tmp_path / "cli-config.json"
+ path.write_text("{not valid json", encoding="utf-8")
+ assert loader._read_json_overrides(path) == {}
+
+
+def test_read_json_overrides_non_dict_env(tmp_path: Path) -> None:
+ path = tmp_path / "cli-config.json"
+ path.write_text(json.dumps({"env": ["not", "a", "dict"]}), encoding="utf-8")
+ assert loader._read_json_overrides(path) == {}
+
+
+def test_read_json_overrides_maps_to_nested_settings(tmp_path: Path) -> None:
+ path = tmp_path / "cli-config.json"
+ path.write_text(
+ json.dumps({"env": {"STRIX_LLM": "my-model", "PERPLEXITY_API_KEY": "pk"}}),
+ encoding="utf-8",
+ )
+ assert loader._read_json_overrides(path) == {
+ "llm": {"model": "my-model"},
+ "integrations": {"perplexity_api_key": "pk"},
+ }
+
+
+def test_read_json_overrides_skips_keys_already_in_environ(
+ tmp_path: Path, monkeypatch: pytest.MonkeyPatch
+) -> None:
+ monkeypatch.setenv("STRIX_LLM", "from-env")
+ path = tmp_path / "cli-config.json"
+ path.write_text(json.dumps({"env": {"STRIX_LLM": "from-file"}}), encoding="utf-8")
+ # env wins -> the JSON value is not surfaced as an init kwarg.
+ assert loader._read_json_overrides(path) == {}
+
+
+def test_read_json_overrides_env_wins_across_field_aliases(
+ tmp_path: Path, monkeypatch: pytest.MonkeyPatch
+) -> None:
+ # api_key resolves from AliasChoices("LLM_API_KEY", "OPENAI_API_KEY"). The env
+ # sets one alias while the persisted file holds another. Env must still win, so
+ # the stale file value must not be surfaced as an init kwarg (which outranks env).
+ monkeypatch.setenv("OPENAI_API_KEY", "sk-env")
+ path = tmp_path / "cli-config.json"
+ path.write_text(json.dumps({"env": {"LLM_API_KEY": "sk-file"}}), encoding="utf-8")
+ assert loader._read_json_overrides(path) == {}
+
+
+def test_read_json_overrides_env_wins_case_insensitively(
+ tmp_path: Path, monkeypatch: pytest.MonkeyPatch
+) -> None:
+ # Settings use case_sensitive=False, so a lowercase env var also counts as set.
+ monkeypatch.setenv("strix_llm", "from-env")
+ path = tmp_path / "cli-config.json"
+ path.write_text(json.dumps({"env": {"STRIX_LLM": "from-file"}}), encoding="utf-8")
+ assert loader._read_json_overrides(path) == {}
+
+
+def test_read_json_overrides_uses_json_when_no_alias_in_environ(tmp_path: Path) -> None:
+ # No alias of api_key is set in the environment -> the file value is used, even
+ # when it is stored under a non-first alias.
+ path = tmp_path / "cli-config.json"
+ path.write_text(json.dumps({"env": {"OPENAI_API_KEY": "sk-file"}}), encoding="utf-8")
+ assert loader._read_json_overrides(path) == {"llm": {"api_key": "sk-file"}}
+
+
+def test_tool_output_max_bytes_rejects_sub_notice_values() -> None:
+ with pytest.raises(ValidationError):
+ ContextSettings(STRIX_TOOL_OUTPUT_MAX_BYTES=64)
+
+
+def test_tool_output_max_bytes_accepts_floor() -> None:
+ assert ContextSettings(STRIX_TOOL_OUTPUT_MAX_BYTES=1024).tool_output_max_bytes == 1024
+
+
+def test_runtime_image_pull_policy_from_env(monkeypatch: pytest.MonkeyPatch) -> None:
+ monkeypatch.setenv("STRIX_IMAGE_PULL_POLICY", "never")
+
+ assert loader.load_settings().runtime.image_pull_policy == "never"
+
+
+# --------------------------------------------------------------------------- #
+# _aliases_for
+# --------------------------------------------------------------------------- #
+
+
+def test_aliases_for_simple_alias() -> None:
+ finfo = FieldInfo(alias="SIMPLE_ALIAS")
+ assert loader._aliases_for(finfo) == ["SIMPLE_ALIAS"]
+
+
+def test_aliases_for_alias_choices() -> None:
+ finfo: FieldInfo = Field( # type: ignore[assignment]
+ default=None,
+ validation_alias=AliasChoices("FIRST", "SECOND"),
+ )
+ assert loader._aliases_for(finfo) == ["FIRST", "SECOND"]
+
+
+def test_aliases_for_string_validation_alias() -> None:
+ finfo: FieldInfo = Field(default=None, validation_alias="STR_ALIAS") # type: ignore[assignment]
+ assert loader._aliases_for(finfo) == ["STR_ALIAS"]
+
+
+def test_aliases_for_no_alias() -> None:
+ assert loader._aliases_for(FieldInfo()) == []
+
+
+# --------------------------------------------------------------------------- #
+# apply_config_override + load_settings round-trip
+# --------------------------------------------------------------------------- #
+
+
+def test_apply_override_and_load_settings_round_trip(tmp_path: Path) -> None:
+ path = tmp_path / "cli-config.json"
+ path.write_text(
+ json.dumps({"env": {"STRIX_LLM": "round-trip-model", "PERPLEXITY_API_KEY": "pk"}}),
+ encoding="utf-8",
+ )
+
+ loader.apply_config_override(path)
+ settings = loader.load_settings()
+
+ assert settings.llm.model == "round-trip-model"
+ assert settings.integrations.perplexity_api_key == "pk"
+ # Second call is memoized -> same object.
+ assert loader.load_settings() is settings
+
+
+def test_apply_config_override_invalidates_cache(tmp_path: Path) -> None:
+ first = tmp_path / "first.json"
+ first.write_text(json.dumps({"env": {"STRIX_LLM": "first-model"}}), encoding="utf-8")
+ second = tmp_path / "second.json"
+ second.write_text(json.dumps({"env": {"STRIX_LLM": "second-model"}}), encoding="utf-8")
+
+ loader.apply_config_override(first)
+ assert loader.load_settings().llm.model == "first-model"
+
+ loader.apply_config_override(second)
+ assert loader.load_settings().llm.model == "second-model"
+
+
+# --------------------------------------------------------------------------- #
+# persist_current
+# --------------------------------------------------------------------------- #
+
+
+def test_persist_current_writes_env_block(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+ monkeypatch.setenv("STRIX_LLM", "persisted-model")
+ target = tmp_path / "sub" / "cli-config.json"
+ loader.apply_config_override(target)
+
+ loader.persist_current()
+
+ assert target.exists()
+ assert json.loads(target.read_text(encoding="utf-8")) == {
+ "env": {"STRIX_LLM": "persisted-model"}
+ }
+
+
+def test_persist_current_sets_0600_mode(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> None:
+ monkeypatch.setenv("STRIX_LLM", "persisted-model")
+ target = tmp_path / "cli-config.json"
+ loader.apply_config_override(target)
+
+ loader.persist_current()
+
+ assert target.stat().st_mode & 0o777 == 0o600
diff --git a/tests/test_image_pull_policy.py b/tests/test_image_pull_policy.py
index a9184833..3c46d46f 100644
--- a/tests/test_image_pull_policy.py
+++ b/tests/test_image_pull_policy.py
@@ -1,4 +1,4 @@
-r‡^Ñf¥–ئ{O,yÊ'vî¶›"""Regression tests for sandbox image acquisition policy."""
+"""Regression tests for sandbox image acquisition policy."""
from __future__ import annotations