Environment Variables

This reference lists the environment variables most projects need when running KsADK locally or in a release pipeline. Use placeholders in committed files and put real values in local .env files or CI secrets.

Model Provider

OpenAI-compatible provider and hosted runtime model policy variables.

Variable	Purpose
`OPENAI_API_KEY`	API key for an OpenAI-compatible model provider
`OPENAI_BASE_URL`	provider base URL, usually ending in `/v1`
`OPENAI_API_BASE`	compatibility alias for `OPENAI_BASE_URL`
`OPENAI_MODEL_NAME`	default model name used by local runners and UI
`AGENTENGINE_MODEL_POLICY_JSON`	model policy JSON injected by hosted runtimes to declare primary / multimodal / fallback defaults
`OPENAI_FALLBACK_MODEL_NAME`	compatibility fallback model variable read by Hermes-style runtimes
`HERMES_DEFAULT_MODEL`	explicit Hermes default model override
`HERMES_FALLBACK_MODEL`	explicit Hermes fallback model override
`HERMES_MODEL_CATALOG_JSON`	Hermes model catalog JSON; overrides policy default catalog
`OPENCLAW_DEFAULT_MODEL`	explicit OpenClaw default model override
`OPENCLAW_FALLBACK_MODEL`	explicit OpenClaw fallback model override
`OPENCLAW_IMAGE_MODEL`	explicit OpenClaw multimodal / image model override
`OPENCLAW_MODEL_CATALOG_JSON`	OpenClaw model catalog JSON; overrides policy default catalog
`MODEL_NAME`	compatibility alias used by some projects

Example:

bash

OPENAI_API_KEY=sk-test
OPENAI_BASE_URL=https://api.example.com/v1
OPENAI_MODEL_NAME=my-model

Codex and model proxy

Variable	Purpose
`KSADK_CODEX_APPROVAL`	Codex approval policy; Studio can select it for the next turn
`KSADK_CODEX_HOME`	explicit native Codex HOME override; normally isolated automatically
`KSADK_CODEX_ISOLATE_HOME`	defaults to `1`; set to `0` only when debugging with the process HOME
`KSADK_CODEX_SANDBOX`	Codex sandbox mode: `read_only`, `workspace_write`, or `full_access`
`KSADK_CODEX_USE_PROXY`	`1` forces the local Codex protocol proxy and `0` forces direct mode; unset performs a conservative probe for custom upstreams only
`KSADK_PROXY_UPSTREAM_BASE`	Codex proxy upstream URL override; defaults to the OpenAI-compatible base URL
`KSADK_PROXY_UPSTREAM_KEY`	Codex proxy upstream credential override (sensitive)
`KSADK_PROXY_TOKEN`	bearer token between the loopback proxy and Codex subprocess (sensitive; normally generated by the SDK)
`KSADK_MODEL_PROXY_ENABLED`	enables the experimental model protocol proxy; default `0`
`KSADK_MODEL_PROXY_AGENTS`	comma-separated agent allowlist
`KSADK_MODEL_PROXY_MODELS`	comma-separated model allowlist
`KSADK_MODEL_PROXY_DENY`	comma-separated denylist for an emergency proxy disable
`KSADK_STUDIO_NO_SECURITY`	controlled tests only; `1` disables the local session and CSRF checks
`KSADK_STUDIO_SESSION_TOKEN`	local Studio browser session token (sensitive; generated randomly when unset)
`KSADK_STUDIO_TRACE_CONTENT`	persist trace event content, default `1`; set to `0` to retain metadata only

Runtime, A2A, and A2UI in 0.8

The following variables belong to 0.8 managed Runtime and A2A data-plane contracts. Variables marked “platform injected” are deployment inputs; users must not put them in .env or commit them.

Codex ManagedRuntime

Variable	Owner	Purpose
`AGENTENGINE_BASE_INSTRUCTIONS`	console / server	server input used to write manifest `prompt` during declarative Codex creation; local `web` reads YAML directly.
`AGENTENGINE_MANAGED_RUNTIME_NAME`	platform injected	Runtime name resolved by the catalog; image startup must match manifest `runtime.name`.
`AGENTENGINE_MANAGED_RUNTIME_VERSION`	platform injected	Runtime version resolved by the catalog; the image also validates installed `openai-codex`.
`AGENTENGINE_MANIFEST_PROTOCOL`	platform injected	inline manifest protocol; currently `runtime-manifest/v1`.
`AGENTENGINE_MANIFEST_SHA256`	platform injected	SHA-256 of normalized `agentengine.yaml`; checked at startup to prevent silent drift.

A2A Runtime

Variable	Owner	Purpose
`KSADK_A2A_SPACE_IDS`	platform injected	JSON array of A2A Spaces configured for the Runtime; callers must select `space_id` explicitly when there is more than one.
`KSADK_A2A_CONTROL_PLANE_URL`	platform injected	A2A control-plane base URL; it does not fall back to the generic AgentEngine server URL.
`KSADK_A2A_ENABLE_PUBLIC_EGRESS`	deployment layer	allows `external_public`; absence is fail-closed as `false`.
`KSADK_A2A_EVENT_OUTBOX_PATH`	platform / developer	durable A2A task-event outbox path; production should place it on a writable Runtime volume.
`KSADK_A2A_TOKEN_DIR`	token sidecar	projected directory for audience workload JWTs; never create or commit these tokens yourself.

Hosted UI

Variable	Owner	Purpose
`KSADK_A2UI_GENERATION_TIMEOUT_SECONDS`	platform / developer	A2UI structured-generation timeout in seconds; valid range `1` through `120`, default `20`.

See A2A Runtime, Codex Managed Runtime, and Hosted UI and Event Replay for their protocol and runtime boundaries.

Unified Model Policy And Fallback (0.6.6+)

Hosted deployments can inject a shared policy through AGENTENGINE_MODEL_POLICY_JSON. Hermes, OpenClaw, and generic agents share one default semantics. In 0.6.6, model policy v1 defaults to glm-5.2 as the primary model, kimi-k2.7-code as the multimodal model, and deepseek-v4-pro as the fallback model. Explicit request fields and explicit environment-variable overrides (such as HERMES_DEFAULT_MODEL / OPENCLAW_FALLBACK_MODEL) still take precedence over policy defaults.

Fallback retry semantics: the conversation runtime automatically retries once with the fallback model on recoverable errors (timeout, rate limit, 5xx, model unavailable, permission/quota); 400 parameter errors, business errors, and tool errors are not swallowed.
Reasoning declaration (0.6.7): DEFAULT_MODEL_POLICY adds a reasoning: true declaration per model, and the catalog output exposes a reasoning field so the console can tell whether a model supports thinking.
Thinking-disable injection (0.6.7): when model_options.thinking is disabled (reasoning.effort=none, or thinking.type=disabled, or max_reasoning_tokens<=0), the runtime auto-injects enable_thinking=false and chat_template_kwargs.enable_thinking=false into extra_body (DeepSeek-style compatibility) and filters reasoning output items from the stream.

Project And Local UI

Variable	Purpose
`KSADK_PROJECT_DIR`	project directory resolved by `agentengine web`
`AGENTENGINE_UI_DIR`	local UI state directory; defaults under `.agentengine/ui`
`KSADK_UI_PROFILE`	Agent UI profile selector; `custom` exposes custom UI bootstrap (0.6.7)
`KSADK_UI_PATH`	custom UI mount path, e.g. `/` or `/research`; `/chat` is auto-rewritten to `/` for custom profile (0.6.7)
`KSADK_UI_URL`	external custom UI URL (0.6.7)
`KSADK_UI_BUNDLE_PATH`	custom UI static bundle path relative to project; local auto-detects `research-ui/dist` (0.6.7)
`KSYUN_REGION`	region used by cloud actions and some SDK clients

Cloud Account Identity Resolution

Variable	Purpose
`KSYUN_IAM_ENDPOINT`	Optional public IAM endpoint override; defaults to `iam.api.ksyun.com` when unset
`KSYUN_IAM_INTRANET_URL`	Optional platform-provided IAM intranet endpoint override; normally unset in public environments
`IAM_INTRANET_URL`	Compatibility alias for `KSYUN_IAM_INTRANET_URL`

Set KSYUN_IAM_INTRANET_URL or IAM_INTRANET_URL only when a platform operator supplies an approved intranet endpoint. Do not put that address in project files, documentation examples, or Agent manifests.

Session Storage

Variable	Purpose
`KSADK_SESSION_BACKEND`	session backend, for example `local` or `postgres`
`AGENTENGINE_SESSION_BACKEND`	compatibility alias for session backend
`KSADK_SESSION_DSN`	PostgreSQL or shared backend DSN
`KSADK_SESSION_PATH`	local session database path
`KSADK_SESSION_NAMESPACE`	namespace for shared session backends
`KSADK_SESSION_CONNECT_TIMEOUT`	PostgreSQL session backend connect timeout in seconds, default `5`; on failure raises `SessionBackendUnavailable` and server returns 503 instead of 500 (0.6.7)
`KSADK_STM_BACKEND`	short-term memory/session backend compatibility variable
`KSADK_STM_PATH`	local SQLite path for UI/session state
`KSADK_STM_DB_PATH`	compatibility alias for local SQLite path
`KSADK_STM_URL`	compatibility DSN for database-backed session state
`KSADK_STM_DB_URL`	compatibility DSN for database-backed session state
`KSADK_ADK_SESSION_BACKEND`	ADK-native session backend selector
`KSADK_ADK_SESSION_PATH`	ADK-native SQLite session path
`KSADK_ADK_SESSION_URL`	ADK-native database session URL
`KSADK_TENANT_ID`	tenant id used for session namespace scoping
`KSADK_WORKSPACE_ID`	workspace id used for session namespace scoping
`AGENTENGINE_TENANT_ID`	compatibility tenant id
`AGENTENGINE_WORKSPACE_ID`	compatibility workspace id

Local UI usually sets:

bash

KSADK_STM_BACKEND=sqlite
KSADK_STM_PATH=.agentengine/ui/sessions.sqlite

Agent Kernel

Variable	Purpose
`KSADK_AGENT_KERNEL`	explicitly enable Kernel ingress for local development; disabled by default
`AGENT_KERNEL_ENABLED`	platform-projected hosted enable flag; older Agents without it remain on the historical path
`AGENT_KERNEL_STORE_DRIVER`	`memory`, local `sqlite`, or `postgres`; the hosted production composition supports ephemeral memory or durable PostgreSQL
`AGENT_KERNEL_STORE_DSN`	required for `postgres`; may be a database file path for local `sqlite`; not used by memory
`AGENT_KERNEL_DURABILITY_TIER`	`ephemeral` or `durable`; hosted memory must explicitly select `ephemeral`
`AGENT_KERNEL_AUTHORITY_MODE`	`local` or `hosted`; hosted mode trusts Server permits only
`AGENT_CONTROL_JWKS_URL`	platform-projected JWKS URL used to verify Server-signed permits
`AGENT_CONTROL_PERMIT_ISSUER`	trusted permit issuer projected by the platform
`AGENT_KERNEL_CONTRACT_DIGEST`	frozen control-plane / Runtime contract digest; hosted startup rejects a mismatch
`AGENT_KERNEL_CAPABILITY_DIGEST`	digest of the actual Runtime capability matrix; admission rejects an adapter mismatch
`AGENT_BUNDLE_DIGEST`	immutable Agent Bundle identity used by owner and recovery evidence

PostgreSQL is not the default dependency

A single-replica hosted Agent that does not need cross-Pod recovery can use memory with AGENT_KERNEL_DURABILITY_TIER=ephemeral. Choose postgres only for a durable Inbox, cross-Pod takeover, or high availability; a missing AGENT_KERNEL_STORE_DSN then fails startup.

Checkpoint Storage

Variable	Purpose
`KSADK_CHECKPOINT_BACKEND`	checkpoint backend: `local` / `sqlite` / `memory` / `postgres`; default `local` (0.6.7)
`KSADK_CHECKPOINT_PATH`	local SQLite checkpoint path, default `.agentengine/ui/checkpoints.sqlite` (0.6.7)
`KSADK_LANGGRAPH_CHECKPOINT_DSN`	LangGraph PostgreSQL checkpoint DSN; required when backend is `postgres` (0.6.7)

Local agentengine web defaults to local session backend and SQLite LangGraph checkpoints, reducing the local resume path's dependency on PostgreSQL (0.6.7).

Ambient Runtime Context

Variable	Purpose
`KSADK_KB_AMBIENT_ENABLED`	enable runtime-injected knowledge context; default enabled
`KSADK_KB_AMBIENT_POLICY`	`on_demand`, `always`, or `disabled`
`KSADK_LTM_AMBIENT_ENABLED`	enable runtime-injected memory context; default enabled
`KSADK_LTM_AMBIENT_POLICY`	`on_demand`, `always`, or `disabled`
`KSADK_LTM_AUTO_SAVE`	save completed turns to long-term memory when supported
`KSADK_LTM_AGENT_ID`	agent id recorded with memory entries

Workspace Files

Variable	Purpose
`KSADK_WORKSPACE_FILES_ENABLED`	enable workspace file routes
`KSADK_WORKSPACE_ROOT_LABEL`	display label for the workspace root
`KSADK_WORKSPACE_MAX_UPLOAD_BYTES`	single upload size limit

Long-Term Memory

Variable	Purpose
`KSADK_LTM_BACKEND`	memory backend: `local`, `http`, or `sdk`
`KSADK_LTM_TOP_K`	default number of memories to retrieve
`KSADK_LTM_INDEX`	local or generic memory index name
`KSADK_LTM_APP_NAME`	application name used by memory service
`KSADK_LTM_HTTP_URL`	HTTP memory backend URL
`KSADK_LTM_HTTP_TOKEN`	HTTP memory backend token
`KSADK_LTM_ACCESS_KEY`	SDK memory access key; can fall back to cloud AK env vars
`KSADK_LTM_SECRET_KEY`	SDK memory secret key; can fall back to cloud SK env vars
`KSADK_LTM_REGION`	SDK memory region
`KSADK_LTM_ENDPOINT`	SDK memory endpoint
`KSADK_LTM_SCHEME`	SDK memory scheme, usually `https`
`KSADK_LTM_NAMESPACE`	SDK memory namespace
`KSADK_LTM_AGENT_ID`	agent id recorded with memory entries
`KSADK_LTM_SCENE_ID`	scene id, default `_sys_general`
`KSADK_LTM_AUTO_SAVE`	enable automatic memory saving when supported
`KSADK_MEMORY_BACKEND`	generic memory backend selector for legacy integrations
`KSADK_MEMORY_URL`	generic memory backend URL
`KSADK_MEMORY_PREFIX`	generic memory key prefix
`KSADK_MEMORY_TTL`	generic memory TTL in seconds

Knowledge Base

Variable	Purpose
`KSADK_KB_DATASET_ID`	enable a knowledge dataset integration
`KSADK_KB_TOP_K`	number of snippets to retrieve
`KSADK_KB_ACCESS_KEY`	optional knowledge SDK access key
`KSADK_KB_SECRET_KEY`	optional knowledge SDK secret key
`KSADK_KB_REGION`	knowledge service region
`KSADK_KB_ENDPOINT`	knowledge service endpoint
`KSADK_KB_SEARCH_METHOD`	retrieval method, default `intelligence_search`
`KSADK_KB_SCORE_THRESHOLD`	optional score threshold
`KSADK_KB_RERANKING_ENABLE`	enable reranking when supported

Skill Runtime

Variable	Purpose
`KSADK_SKILL_SPACE_IDS`	comma-separated Skill Space ids
`SKILL_SPACE_ID`	compatibility alias for a single Skill Space id
`KSADK_PUBLIC_SKILL_SPACE_IDS`	comma-separated public Skill Space ids appended after user spaces
`KSADK_PUBLIC_SKILL_ALLOWLIST`	comma-separated public Skill names to expose
`KSADK_LOCAL_SKILLS_DIR`	local directory containing `SKILL.md` packages
`KSADK_SELECTED_SKILL_NAMES`	comma-separated Skill names selected by an outer agent
`KSADK_SKILLS_MODE`	Skill loading mode: `auto`, `local`, or `sandbox`
`KSADK_SKILL_SERVICE_URL`	Skill Service endpoint
`KSADK_SKILL_SERVICE_TOKEN`	Skill Service bearer token when token auth is used
`KSADK_SKILL_SERVICE_ACCESS_KEY`	signed Skill Service access key
`KSADK_SKILL_SERVICE_SECRET_KEY`	signed Skill Service secret key
`KSADK_SKILL_SERVICE_ACCOUNT_ID`	account id for signed requests
`KSADK_SKILL_SERVICE_REGION`	Skill Service region
`KSADK_SKILL_SERVICE_API_VERSION`	Skill Service API version
`KSADK_SKILL_SERVICE_SIGN_SERVICE`	signing service name
`KSADK_SKILL_CACHE_DIR`	local cache for downloaded skill packages
`KSADK_SKILL_ALLOW_HASH_MISMATCH`	allow unverified skill package preview
`KSADK_SKILL_MANIFEST_TIMEOUT`	remote Skill manifest listing timeout in seconds
`KSADK_SKILL_MANIFEST_LIMIT`	maximum manifests injected into agent instructions
`KSADK_SKILL_RUNTIME_BACKEND`	isolated execution backend, for example `local_process` or `e2b`
`KSADK_SKILL_RUNTIME_TEMPLATE_ID`	runtime template id
`KSADK_SANDBOX_BACKEND`	sandbox backend selector used as a compatibility fallback
`KSADK_SANDBOX_TEMPLATE_ID`	sandbox template id; also enables E2B-style backend
`KSADK_SKILL_RUNTIME_TIMEOUT`	isolated execution timeout in seconds
`KSADK_SANDBOX_TIMEOUT`	sandbox timeout compatibility variable
`KSADK_SKILL_RUNTIME_ALLOW_INTERNET_ACCESS`	allow internet access for sandbox execution
`KSADK_SKILL_RUNTIME_AGENT_PATH`	local process runtime agent path
`KSADK_SKILL_WORKDIR`	workspace directory exposed to skill execution
`KSADK_SKILL_ARTIFACT_PROJECT`	artifact project name for generated outputs

Tool Gateway

Variable	Purpose
`KSADK_TOOL_APPROVAL_MODE`	tool approval mode; set to `strict` to make medium / high / critical risk tools return `approval_required` before execution

MCP

Variable	Purpose
`KSADK_ENABLE_MCP_TOOLS`	enable or disable MCP tools
`KSADK_MCP_SERVERS`	JSON array of MCP server definitions
`KSADK_BUILD_ENABLE_MCP`	include MCP runtime dependencies during code build

Example:

bash

KSADK_ENABLE_MCP_TOOLS=1
KSADK_MCP_SERVERS='[{"name":"docs","url":"http://127.0.0.1:9000/mcp"}]'

Build And Packaging

Variable	Purpose
`KSADK_BUILD_PIP_INSTALL_TIMEOUT_SECONDS`	pip install timeout in build flows
`KSADK_BUILD_ENABLE_ATTACHMENT_OCR`	include OCR-related attachment dependencies
`KSADK_BUILD_ENABLE_POSTGRES_SESSION`	include PostgreSQL session dependencies

Object Storage Credentials (KS3)

Variable	Purpose
`KS3_BUCKET`	KS3 bucket name; derived from `account_id` + `region` when unset
`KS3_REGION`	KS3 region; falls back to `KSYUN_REGION`, default `cn-beijing-6`
`KS3_ACCESS_KEY`	KS3 access key; can fall back to cloud AK env vars (sensitive)
`KS3_SECRET_KEY`	KS3 secret key; can fall back to cloud SK env vars (sensitive)

Image Registry Credentials

Variable	Purpose
`KCR_REGISTRY`	image registry address
`KCR_ENDPOINT`	image registry endpoint
`KCR_USERNAME`	image registry username; required for enterprise KCR and third-party registries (sensitive)
`KCR_PASSWORD`	image registry password; required for enterprise KCR and third-party registries (sensitive)

Personal KCR (*.kce.ksyun.com) allows KSYUN_ACCOUNT_ID to fall back as the username; enterprise KCR (*.ksyunkcr.com) and third-party registries must set KCR_USERNAME / KCR_PASSWORD explicitly, to avoid wrongly using the cloud account id as an enterprise image username (0.6.5).

Build Context .env Boundary

agentengine deploy and agentengine launch support --env KEY=VALUE (repeatable) and --env-file for runtime environment variables; explicit env goes into the deploy payload env_vars. Real .env / .env.local files are excluded from Code, Container, and MCP build contexts; only .env.example / .env.sample / .env.template template files are kept (0.6.5).

Web UI Static Sync

Variable	Purpose
`KSADK_WEB_VERSION`	published `@kingsoftcloud/ksadk-web` npm version used by `make sync-ksadk-web-static`; the 0.8.4 default is `0.3.7`. Publish and verify a new version before using it in a wheel build.
`KSADK_WEB_PACKAGE`	npm package name used for local UI static sync; default `@kingsoftcloud/ksadk-web`
`KSADK_WEB_TARBALL_NAME`	saved filename when `KSADK_WEB_RELEASE_URL` is set; npm pack mode uses the real tarball filename returned by npm
`KSADK_WEB_RELEASE_URL`	optional fallback; when set, skips npm pack and downloads from this tarball URL
`KSADK_WEB_CACHE_DIR`	KsADK Web package extraction cache directory; default `.cache/ksadk-web`

make build / make build-wheel automatically run sync-ksadk-web-static; no manual sync needed.

DSH Plugin Bridge

Variable	Purpose
`KSADK_DSH_HOME`	Isolated managed DSH Profile directory; defaults to `.agentkit/dsh-home` in the workspace. Studio never mutates an explicitly configured directory.
`KSADK_DSH_PROFILE`	DSH Profile name to use; defaults to `studio`.
`KSADK_DSH_BIN`	Optional absolute DSH command path for fixed-toolchain core development or CI verification; version mismatches fail closed.

Observability

Variable	Purpose
`OTEL_SERVICE_NAME`	OpenTelemetry service name; also used as an agent name fallback
`OTEL_RESOURCE_ATTRIBUTES`	OpenTelemetry resource attributes as comma-separated `key=value` pairs
`OTEL_EXPORTER_OTLP_ENDPOINT`	generic OTLP HTTP endpoint; KsADK derives `/v1/traces` when no traces endpoint is set
`OTEL_EXPORTER_OTLP_PROTOCOL`	generic OTLP protocol; KsADK auto HTTP exporter supports `http/protobuf`
`OTEL_EXPORTER_OTLP_HEADERS`	generic OTLP HTTP headers, comma-separated with URL-encoded values; may contain auth data
`OTEL_EXPORTER_OTLP_TRACES_ENDPOINT`	traces-specific OTLP HTTP endpoint; takes precedence over the generic endpoint
`OTEL_EXPORTER_OTLP_TRACES_PROTOCOL`	traces-specific OTLP protocol; takes precedence over the generic protocol
`OTEL_EXPORTER_OTLP_TRACES_HEADERS`	traces-specific OTLP HTTP headers; takes precedence over generic headers and may contain auth data
`KSADK_OTLP_MAX_EXPORT_BATCH_SIZE`	maximum spans exported per OTLP batch, default `64`, to avoid oversized collector requests
`SESSION_TITLE_MODEL`	model override for generated local session titles
`COMPACTION_DISABLE_SEMANTIC`	disable semantic session summary compaction
`COMPACTION_SUMMARY_TIMEOUT_MS`	timeout for summary generation
`COMPACTION_SUMMARY_MAX_GROUPS`	maximum message groups summarized
`COMPACTION_SUMMARY_MODEL`	model override for semantic summaries

CloudMonitor OTLP Dual-Write (CLOUD_MONITOR_*)

setup_tracing() auto-detects CLOUD_MONITOR_OTLP_* variables and builds a CloudMonitor OTLP exporter writing in parallel with the primary Langfuse OTLP (standard OTEL_EXPORTER_OTLP_*). A single span enters both backends with the same trace_id and span_id. Managed Agents created from either the CLI or console receive both routes by default; use --no-observability, or turn observability off in the console, to disable them explicitly. The Langfuse CallbackHandler path has been removed.

Variable	Purpose
`CLOUD_MONITOR_APP_KEY`	Deprecated transition fallback; used as `Ksc-Appkey` only when both `CLOUD_MONITOR_OTLP_TRACES_HEADERS` and `CLOUD_MONITOR_OTLP_HEADERS` are entirely absent (sensitive)
`CLOUD_MONITOR_OTLP_ENDPOINT`	CloudMonitor generic OTLP HTTP endpoint; derives `/v1/traces` when no traces endpoint is set
`CLOUD_MONITOR_OTLP_PROTOCOL`	CloudMonitor generic OTLP protocol; currently supports `http/protobuf`
`CLOUD_MONITOR_OTLP_HEADERS`	CloudMonitor OTLP extra headers, comma-separated and RFC 3986 encoded (sensitive)
`CLOUD_MONITOR_OTLP_TRACES_ENDPOINT`	CloudMonitor traces-specific endpoint; takes precedence over the generic endpoint
`CLOUD_MONITOR_OTLP_TRACES_HEADERS`	CloudMonitor traces-specific headers; take precedence over generic headers and fail closed when present without `Ksc-Appkey` (sensitive)
`CLOUD_MONITOR_OTLP_TRACES_PROTOCOL`	CloudMonitor traces-specific protocol; takes precedence over the generic protocol

When one backend fails the other still works: primary failure keeps the secondary, secondary failure keeps the primary, Agent business is not blocked.

Safety Rules

Never commit real values for keys, tokens, DSNs, private endpoints, customer dataset ids, or kubeconfigs.
Prefer local .env for development and CI secrets for automation.
Keep public docs on placeholders such as sk-test, my-model, and https://api.example.com/v1.

Environment Variables

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