> ## Documentation Index > Fetch the complete documentation index at: https://checkfu.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Get the generated harness support snapshot > Returns the exact deployed harness catalog together with a deterministic catalog digest, the current experience, conformance, evidence-manifest, and readiness revisions, and one derived support record per entry. Catalog supply and signed catalog readiness are reported separately. Every row remains `preflight_required` for an actual harness/model/sandbox tuple; a recipe, capability ceiling, or tier never becomes a compatibility claim. Checkfu support posture: alpha; hosted. Required evidence journey: support-registry. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities. ## OpenAPI ````yaml /openapi.json get /v1/support/harnesses openapi: 3.1.0 info: title: Checkfu API version: '2026-08-27' description: >- Authentication is declared per operation: API-key, runtime, or connector bearer; Automation signature; or credential-free pairing redemption. Every general Checkfu REST request requires the dated `Checkfu-Version` header (one of: 2026-08-27); the three MCP JSON-RPC transports use `MCP-Protocol-Version`, A2A uses `A2A-Version`, and the provider OAuth callback carries neither Checkfu header. API keys resolve one Workspace without a request selector; authenticated responses identify it with `Checkfu-Workspace-Id`. servers: - url: https://api.checkfu.com security: - bearerAuth: [] tags: - name: organizations - name: sourceRepositories - name: tenants - name: workspaces - name: principals - name: principalGroups - name: principalAccessCredentials - name: apiKeys - name: agents - name: harnesses - name: harnessRuntime - name: sandboxProfiles - name: computerProfiles - name: permissionAssignments - name: actionPolicies - name: files - name: memoryStores - name: dreams - name: modelCredentials - name: modelRoutingProfiles - name: blueprintInstallations - name: toolSources - name: skills - name: skillSources - name: agentSources - name: skillProposals - name: instructionProposals - name: catalog - name: concepts - name: support - name: connections - name: connectionVaults - name: connectionAssignments - name: connectedRuntimes - name: projects - name: collaboration - name: automationGraphs - name: automations - name: actionApprovals - name: standingApprovals - name: usage - name: models - name: outcomes - name: budgets - name: billing - name: sessions - name: audit - name: sessionExports - name: runs - name: runnerPools - name: transcripts - name: sessionWatches - name: webhookEndpoints - name: integrationGateway - name: agentDeployments - name: workEnvironments - name: computers - name: computerScreens - name: computerBrowserObservations - name: computerBrowserActions - name: environments - name: vaults - name: apiMcp - name: a2a paths: /v1/support/harnesses: get: tags: - support summary: Get the generated harness support snapshot description: >- Returns the exact deployed harness catalog together with a deterministic catalog digest, the current experience, conformance, evidence-manifest, and readiness revisions, and one derived support record per entry. Catalog supply and signed catalog readiness are reported separately. Every row remains `preflight_required` for an actual harness/model/sandbox tuple; a recipe, capability ceiling, or tier never becomes a compatibility claim. Checkfu support posture: alpha; hosted. Required evidence journey: support-registry. Deployment-specific readiness and the latest proven release are available from GET /v1/support/capabilities. operationId: support.getHarnessSupport parameters: - name: checkfu-version in: header schema: type: string enum: - '2026-08-27' required: true responses: '200': description: Success content: application/json: schema: type: object properties: revision: type: string enum: - checkfu:harness-support@1 catalog_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ coordinates: type: object properties: experience_profile_revision: type: string enum: - checkfu:harness-experience-profiles@2 conformance_suite_revision: type: string enum: - checkfu:harness-conformance@9 conformance_case_set_revision: type: string enum: - checkfu:harness-conformance-case-set@6 conformance_evidence_identity_revision: type: string enum: - checkfu:harness-conformance-evidence-identity@2 conformance_evidence_manifest_revision: type: string enum: - checkfu:conformance-evidence-manifest@6 readiness_identity_revision: type: string enum: - checkfu:harness-readiness@2 readiness_attestation_type: type: string enum: - >- https://checkfu.dev/attestations/harness-readiness/v1 required: - experience_profile_revision - conformance_suite_revision - conformance_case_set_revision - conformance_evidence_identity_revision - conformance_evidence_manifest_revision - readiness_identity_revision - readiness_attestation_type additionalProperties: false entries: type: array items: type: object properties: entry: $ref: '#/components/schemas/Union_37' access_lane: type: string enum: - platform_model_gateway - harness_owned_model - connected_runtime adoption_path: type: string enum: - catalog_ready - bring_your_own_image - blocked catalog_evidence: type: string enum: - signed_readiness_receipt - connected_plane - none blocker: type: string enum: - none - image_required - readiness_evidence_missing - connected_plane_missing driver_version: anyOf: - type: string - type: 'null' mcp_delivery: type: string enum: - session_http - none - undeclared readiness_receipt: anyOf: - $ref: '#/components/schemas/Objects_23' - type: 'null' tuple_support: type: string enum: - preflight_required required: - entry - access_lane - adoption_path - catalog_evidence - blocker - driver_version - mcp_delivery - readiness_receipt - tuple_support additionalProperties: false required: - revision - catalog_digest - coordinates - entries additionalProperties: false headers: checkfu-workspace-id: description: The Workspace resolved from the authenticated bearer credential. required: true schema: $ref: '#/components/schemas/WorkspaceId' '400': description: Typed Checkfu wire error content: application/json: schema: type: object required: - error properties: error: type: object properties: type: type: string enum: - validation.malformed message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#validation-malformed description: >- Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false additionalProperties: false '401': description: Typed Checkfu wire error content: application/json: schema: type: object required: - error properties: error: type: object required: - type - message - more properties: type: type: string enum: - auth.invalid_key message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#auth-invalid-key description: >- Stable public documentation and remedy for this error type. additionalProperties: false additionalProperties: false '403': description: >- The organization, tenant, or workspace backing this key is administratively disabled. | Deployment governance or retention policy denied the request. content: application/json: schema: anyOf: - type: object required: - error properties: error: type: object properties: type: type: string enum: - auth.disabled_tenancy message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#auth-disabled-tenancy description: >- Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false additionalProperties: false - $ref: '#/components/schemas/PolicyDeniedError' '429': description: Typed Checkfu wire error headers: retry-after: description: >- Delay in seconds for rate limits or deployment quotas with a known release or UTC reset boundary required: false schema: type: integer minimum: 1 content: application/json: schema: type: object required: - error properties: error: type: object required: - type - message - more properties: type: type: string enum: - budget.exceeded message: type: string more: type: string enum: - >- https://docs.checkfu.com/reference/errors#budget-exceeded description: >- Stable public documentation and remedy for this error type. additionalProperties: false additionalProperties: false '500': description: >- An unexpected internal failure occurred; the message contains an opaque incident reference. content: application/json: schema: $ref: '#/components/schemas/RuntimeInternalError' security: - bearerAuth: [] components: schemas: Union_37: anyOf: - type: object properties: name: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ display_name: type: string allOf: - minLength: 1 description: type: string allOf: - minLength: 1 launch_role: $ref: '#/components/schemas/HarnessLaunchRole' tier: $ref: '#/components/schemas/Union_38' mode: type: string enum: - managed availability: type: string enum: - ready adoption: type: object properties: kind: type: string enum: - managed artifact: $ref: '#/components/schemas/Objects_20' driver_version: type: string allOf: - minLength: 1 default_configuration: $ref: '#/components/schemas/HarnessConfiguration' configuration_schema: $ref: '#/components/schemas/Union_39' required: - kind - artifact - driver_version - default_configuration - configuration_schema additionalProperties: false capability_ceiling: $ref: '#/components/schemas/Objects_21' required: - name - display_name - description - launch_role - tier - mode - availability - adoption - capability_ceiling additionalProperties: false - type: object properties: name: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ display_name: type: string allOf: - minLength: 1 description: type: string allOf: - minLength: 1 launch_role: $ref: '#/components/schemas/HarnessLaunchRole' tier: $ref: '#/components/schemas/Union_38' mode: $ref: '#/components/schemas/Union_40' capability_ceiling: $ref: '#/components/schemas/Objects_21' availability: type: string enum: - image_required adoption: type: object properties: kind: type: string enum: - oci_recipe upstream_project: type: string allOf: - minLength: 1 upstream_revision: type: string allOf: - minLength: 1 recipe: $ref: '#/components/schemas/Objects_22' image_contract: $ref: '#/components/schemas/Union_41' driver_version: type: string allOf: - minLength: 1 default_configuration: $ref: '#/components/schemas/HarnessConfiguration' configuration_schema: $ref: '#/components/schemas/Union_39' default_image: type: 'null' required: - kind - upstream_project - upstream_revision - recipe - image_contract - driver_version - default_configuration - configuration_schema - default_image additionalProperties: false required: - name - display_name - description - launch_role - tier - mode - capability_ceiling - availability - adoption additionalProperties: false - $ref: '#/components/schemas/HarnessCatalogReadinessReceiptCoordinates' - type: object properties: name: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ display_name: type: string allOf: - minLength: 1 description: type: string allOf: - minLength: 1 launch_role: $ref: '#/components/schemas/HarnessLaunchRole' tier: $ref: '#/components/schemas/Union_38' mode: $ref: '#/components/schemas/Union_40' capability_ceiling: $ref: '#/components/schemas/Objects_21' availability: type: string enum: - blocked missing_evidence: type: string allOf: - minLength: 1 adoption: type: object properties: kind: type: string enum: - oci_recipe upstream_project: type: string allOf: - minLength: 1 upstream_revision: type: string allOf: - minLength: 1 recipe: $ref: '#/components/schemas/Objects_22' image_contract: $ref: '#/components/schemas/Union_41' driver_version: type: string allOf: - minLength: 1 default_configuration: $ref: '#/components/schemas/HarnessConfiguration' configuration_schema: $ref: '#/components/schemas/Union_39' default_image: $ref: '#/components/schemas/OciImageReference' required: - kind - upstream_project - upstream_revision - recipe - image_contract - driver_version - default_configuration - configuration_schema - default_image additionalProperties: false required: - name - display_name - description - launch_role - tier - mode - capability_ceiling - availability - missing_evidence - adoption additionalProperties: false - type: object properties: name: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ display_name: type: string allOf: - minLength: 1 description: type: string allOf: - minLength: 1 launch_role: $ref: '#/components/schemas/HarnessLaunchRole' tier: $ref: '#/components/schemas/Union_38' mode: type: string enum: - connected adoption: $ref: '#/components/schemas/Objects_24' capability_ceiling: $ref: '#/components/schemas/Objects_21' availability: type: string enum: - ready required: - name - display_name - description - launch_role - tier - mode - adoption - capability_ceiling - availability additionalProperties: false - type: object properties: name: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ display_name: type: string allOf: - minLength: 1 description: type: string allOf: - minLength: 1 launch_role: $ref: '#/components/schemas/HarnessLaunchRole' tier: $ref: '#/components/schemas/Union_38' mode: type: string enum: - connected adoption: $ref: '#/components/schemas/Objects_24' capability_ceiling: $ref: '#/components/schemas/Objects_21' availability: type: string enum: - blocked missing_plane: type: string allOf: - minLength: 1 required: - name - display_name - description - launch_role - tier - mode - adoption - capability_ceiling - availability - missing_plane additionalProperties: false Objects_23: type: object properties: schema_version: type: number enum: - 1 harness_name: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ image: $ref: '#/components/schemas/OciImageReference' recipe_revision: type: integer allOf: - exclusiveMinimum: 0 image_contract_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ local_prompt_evidence_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ hosted_prompt_evidence_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ conformance_report_id: $ref: '#/components/schemas/ConformanceReportId' conformance_report_fingerprint: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ integration_descriptor_digest: anyOf: - type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ - type: 'null' statement_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ attestation_type: type: string enum: - https://checkfu.dev/attestations/harness-readiness/v1 qualified_at: $ref: '#/components/schemas/HarnessReadinessInstant' required: - schema_version - harness_name - image - recipe_revision - image_contract_digest - local_prompt_evidence_digest - hosted_prompt_evidence_digest - conformance_report_id - conformance_report_fingerprint - statement_digest - attestation_type - qualified_at additionalProperties: false WorkspaceId: type: string allOf: - pattern: ^wrkspc_[0-9a-f]{32}$ PolicyDeniedError: type: object properties: error: type: object properties: type: type: string enum: - policy.denied message: type: string more: type: string enum: - https://docs.checkfu.com/reference/errors#policy-denied description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: Deployment governance or retention policy denied the request. RuntimeInternalError: type: object properties: error: type: object properties: type: type: string enum: - runtime.internal message: type: string more: type: string enum: - https://docs.checkfu.com/reference/errors#runtime-internal description: Stable public documentation and remedy for this error type. required: - type - message - more additionalProperties: false required: - error additionalProperties: false description: >- An unexpected internal failure occurred; the message contains an opaque incident reference. HarnessLaunchRole: type: string enum: - primary - alternative - local_fixture description: >- Operator-owned launch intent: product primary, explicit alternative, or local-only fixture Union_38: type: string enum: - certified - beta - experimental Objects_20: type: object properties: kind: type: string enum: - managed protocol: type: string enum: - mock preset: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ adapter_version: type: string allOf: - minLength: 1 recipe_digest: type: string allOf: - pattern: ^sha256:[0-9a-f]{64}$ required: - kind - protocol - preset - adapter_version - recipe_digest additionalProperties: false HarnessConfiguration: type: object additionalProperties: description: >- A value in the JSON data model: null, boolean, finite number, string, array, or object. allOf: - x-checkfu-json-budget: maximumBytes: 65536 maximumDepth: 32 maximumNodes: 4000 maximumInspectionWork: 4000 allOf: - x-checkfu-json-budget: maximumBytes: 65536 maximumDepth: 32 maximumNodes: 4000 maximumInspectionWork: 4000 - maxProperties: 4000 description: harness configuration of at most 64 KiB, depth 32, and 4,000 nodes Union_39: anyOf: - type: boolean - $ref: '#/components/schemas/HarnessConfigurationSchemaObject' Objects_21: type: object properties: event_fidelity: type: string enum: - native - structured - text_only - minimal continuation: type: string enum: - in_flight - next_turn - rebuild_only checkpoint: type: string enum: - process_and_disk - disk_only - conversation_only - none approval_delivery: type: string enum: - park - snapshot_release - end_reinject - unsupported interrupt: type: string enum: - cooperative - kill_only mid_run_input: type: string enum: - native - turn_boundary_only - unsupported model_control: type: string enum: - platform_enforced - compatible - opaque - harness_owned usage_authority: type: string enum: - platform_observed - harness_reported - unknown multiagent_shared_environment: type: boolean subagents: type: string enum: - observed - flatten required: - event_fidelity - continuation - checkpoint - approval_delivery - interrupt - mid_run_input - model_control - usage_authority - multiagent_shared_environment additionalProperties: false Union_40: type: string enum: - packaged - custom Objects_22: type: object properties: id: type: string allOf: - minLength: 1 revision: type: integer allOf: - exclusiveMinimum: 0 scaffold_command: anyOf: - type: string allOf: - minLength: 1 - type: 'null' required: - id - revision - scaffold_command additionalProperties: false Union_41: anyOf: - type: object properties: argv: false prompt_transport: false output_mode: false resume_flag: false output_schema_flag: false output_schema_transport: false protocol: type: string enum: - acp-v1 entrypoint: type: string allOf: - maxLength: 4096 - pattern: >- ^\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+(?:\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+)*$ arguments: $ref: '#/components/schemas/HarnessProcessArgumentVectorUtf8Bytes' mcp_delivery: type: string enum: - session_http - none working_directory: type: string allOf: - maxLength: 4096 - pattern: >- ^\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+(?:\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+)*$ platforms: $ref: '#/components/schemas/Arrays_8' model_plane: type: string enum: - workspace model_wire_dialects: type: array items: type: string enum: - anthropic_messages - openai_chat - openai_responses - fal_queue allOf: - minItems: 1 - maxItems: 4 - uniqueItems: true run_as_user: type: string enum: - '65532:65532' read_only_root: type: boolean enum: - true writable_paths: $ref: '#/components/schemas/Arrays_9' required: - protocol - entrypoint - arguments - mcp_delivery - working_directory - platforms - model_plane - run_as_user - read_only_root - writable_paths additionalProperties: false - $ref: '#/components/schemas/OneShotImageContractPromptPath' HarnessCatalogReadinessReceiptCoordinates: type: object properties: name: type: string allOf: - pattern: ^[a-z0-9](?:[a-z0-9._-]{0,93})$ display_name: type: string allOf: - minLength: 1 description: type: string allOf: - minLength: 1 launch_role: $ref: '#/components/schemas/HarnessLaunchRole' tier: $ref: '#/components/schemas/Union_38' mode: $ref: '#/components/schemas/Union_40' capability_ceiling: $ref: '#/components/schemas/Objects_21' availability: type: string enum: - ready readiness_receipt: $ref: '#/components/schemas/Objects_23' adoption: type: object properties: kind: type: string enum: - oci_recipe upstream_project: type: string allOf: - minLength: 1 upstream_revision: type: string allOf: - minLength: 1 recipe: $ref: '#/components/schemas/Objects_22' image_contract: $ref: '#/components/schemas/Union_41' driver_version: type: string allOf: - minLength: 1 default_configuration: $ref: '#/components/schemas/HarnessConfiguration' configuration_schema: $ref: '#/components/schemas/Union_39' default_image: $ref: '#/components/schemas/OciImageReference' required: - kind - upstream_project - upstream_revision - recipe - image_contract - driver_version - default_configuration - configuration_schema - default_image additionalProperties: false required: - name - display_name - description - launch_role - tier - mode - capability_ceiling - availability - readiness_receipt - adoption additionalProperties: false OciImageReference: type: string Objects_24: type: object properties: kind: type: string enum: - connected upstream_project: type: string allOf: - minLength: 1 upstream_revision: type: string allOf: - minLength: 1 command: type: string allOf: - maxLength: 65536 - pattern: ^[^\u0000]*$ description: >- Exact process argument text, preserving whitespace; U+0000 is forbidden and UTF-8 encoding is limited to 65536 bytes - minLength: 1 arguments: $ref: '#/components/schemas/HarnessProcessArgumentVectorUtf8Bytes' required: - kind - upstream_project - upstream_revision - command - arguments additionalProperties: false ConformanceReportId: type: string allOf: - pattern: ^conf_[0-9a-f]{32}$ HarnessReadinessInstant: type: string allOf: - maxLength: 24 - pattern: ^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{3}Z$ description: >- A canonical UTC ISO-8601 harness-readiness instant with millisecond precision. HarnessConfigurationSchemaObject: type: object additionalProperties: description: >- A value in the JSON data model: null, boolean, finite number, string, array, or object. allOf: - x-checkfu-json-budget: maximumBytes: 65536 maximumDepth: 32 maximumNodes: 4000 maximumInspectionWork: 4000 allOf: - x-checkfu-json-budget: maximumBytes: 65536 maximumDepth: 32 maximumNodes: 4000 maximumInspectionWork: 4000 - maxProperties: 4000 description: >- harness configuration schema of at most 64 KiB, depth 32, and 4,000 nodes HarnessProcessArgumentVectorUtf8Bytes: type: array items: $ref: '#/components/schemas/HarnessProcessArgumentUtf8Bytes' allOf: - maxItems: 256 description: >- At most 256 exact process arguments and 131072 aggregate UTF-8 bytes including one terminator per argument Arrays_8: type: array items: $ref: '#/components/schemas/Objects_8' allOf: - minItems: 1 Arrays_9: type: array items: type: string allOf: - maxLength: 4096 - pattern: >- ^\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+(?:\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+)*$ allOf: - minItems: 1 OneShotImageContractPromptPath: type: object properties: protocol: type: string enum: - oneshot-v1 arguments: false mcp_delivery: false entrypoint: type: string allOf: - maxLength: 4096 - pattern: >- ^\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+(?:\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+)*$ argv: $ref: '#/components/schemas/OneShotArgvPlaceholders' prompt_transport: $ref: '#/components/schemas/Union_44' output_mode: $ref: '#/components/schemas/Union_45' resume_flag: type: string allOf: - maxLength: 65536 - pattern: ^[^\u0000]*$ description: >- Exact process argument text, preserving whitespace; U+0000 is forbidden and UTF-8 encoding is limited to 65536 bytes - minLength: 1 output_schema_flag: type: string allOf: - maxLength: 65536 - pattern: ^[^\u0000]*$ description: >- Exact process argument text, preserving whitespace; U+0000 is forbidden and UTF-8 encoding is limited to 65536 bytes - minLength: 1 output_schema_transport: type: string enum: - argv_json - argv_path working_directory: type: string allOf: - maxLength: 4096 - pattern: >- ^\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+(?:\/(?!\.{1,2}(?:\/|$))[A-Za-z0-9._-]+)*$ platforms: $ref: '#/components/schemas/Arrays_8' model_plane: type: string enum: - workspace model_wire_dialects: type: array items: type: string enum: - anthropic_messages - openai_chat - openai_responses - fal_queue allOf: - minItems: 1 - maxItems: 4 - uniqueItems: true run_as_user: type: string enum: - '65532:65532' read_only_root: type: boolean enum: - true writable_paths: $ref: '#/components/schemas/Arrays_9' required: - protocol - entrypoint - argv - prompt_transport - output_mode - working_directory - platforms - model_plane - run_as_user - read_only_root - writable_paths additionalProperties: false HarnessProcessArgumentUtf8Bytes: type: string allOf: - maxLength: 65536 - pattern: ^[^\u0000]*$ description: >- Exact process argument text, preserving whitespace; U+0000 is forbidden and UTF-8 encoding is limited to 65536 bytes Objects_8: type: object properties: os: type: string enum: - linux architecture: type: string enum: - amd64 - arm64 required: - os - architecture additionalProperties: false OneShotArgvPlaceholders: type: array items: $ref: '#/components/schemas/HarnessProcessArgumentUtf8Bytes' allOf: - maxItems: 256 description: >- At most 256 exact process arguments and 131072 aggregate UTF-8 bytes including one terminator per argument Union_44: type: string enum: - stdin - argv_path Union_45: type: string enum: - stream_json - text securitySchemes: bearerAuth: type: http scheme: bearer ````