> ## Documentation Index > Fetch the complete documentation index at: https://docs.revoengine.com/llms.txt > Use this file to discover all available pages before exploring further. # Patch Studio working files > Applies full-content changes or a V4A patch atomically using each affected file revision and digest. A conflict preserves the existing workspace and returns merge information. ## OpenAPI ````yaml /api-reference/openapi.json post /api/v1/studio/sessions/{sessionId}/patch openapi: 3.0.0 info: title: RevoEngine Platform API description: Official RevoEngine Platform API documentation. version: 1.7.0 contact: name: Support email: support@revoengine.com termsOfService: https://docs.revoengine.com/tos servers: - url: https://api.revoengine.com description: Production security: [] tags: - name: Accounts description: Users, service accounts, API keys, status, and platform access. externalDocs: description: Identity and access guide url: https://docs.revoengine.com/operate/identity-and-access - name: Activity description: Snapshot-backed activity and version history. externalDocs: description: Observability guide url: https://docs.revoengine.com/operate/observability - name: Agent Memory description: Administrative access to durable Agent memory. externalDocs: description: Agent memory and workspaces guide url: https://docs.revoengine.com/ai/memory-and-workspaces - name: Agent Plugins description: Agent plugin definitions, synchronization, testing, and lifecycle. externalDocs: description: Agent plugins guide url: https://docs.revoengine.com/ai/plugins - name: Agent Terminals description: Terminal pairing, owner grants, access, and command activity. externalDocs: description: Connect a terminal guide url: https://docs.revoengine.com/ai/terminals - name: Agents description: >- Agent definitions, runs, sessions, inboxes, memory, tools, workspaces, and lifecycle. externalDocs: description: Autonomous Agents guide url: https://docs.revoengine.com/ai/agents - name: Assistant description: >- Assistant threads, messages, responses, goals, reports, sharing, attachments, and control. externalDocs: description: Assistant guide url: https://docs.revoengine.com/ai/assistant - name: Automation description: >- Jobs, templates, schedules, events, webhooks, execution history, and lifecycle. externalDocs: description: Automation guide url: https://docs.revoengine.com/operate/automation - name: Browser Profiles description: >- Manage browser profile metadata, access, assignments and active sessions without exposing website authentication state. externalDocs: description: Browser profiles and collaboration guide url: https://docs.revoengine.com/ai/browser - name: Chat description: Collaborative chat threads, messages, reactions, uploads, and attachments. externalDocs: description: Team Chat guide url: https://docs.revoengine.com/operate/chat - name: Component deployments description: >- Custom Node.js runtime deployment attempts, readiness, activation, and rollback. externalDocs: description: Custom Node.js guide url: https://docs.revoengine.com/build/custom-nodejs - name: Components description: Components, elements, versions, validation, activation, and lifecycle. externalDocs: description: Components guide url: https://docs.revoengine.com/build/components - name: Config description: Instance configuration, usage, logs, and cache administration. externalDocs: description: Instance settings guide url: https://docs.revoengine.com/platform/instance-settings - name: Database Cache description: Instance Database cache values and statistics. externalDocs: description: Database Cache guide url: https://docs.revoengine.com/operate/database-cache - name: Database Views description: Database Views, previews, refreshes, exports, and controlled data actions. externalDocs: description: Database Views guide url: https://docs.revoengine.com/operate/database-views - name: Databases description: Database definitions, data, audits, exports, cloning, and lifecycle. externalDocs: description: Databases guide url: https://docs.revoengine.com/operate/databases - name: Endpoints description: >- Endpoint definitions, activation, validation, generated OpenAPI, and statistics. externalDocs: description: Endpoints guide url: https://docs.revoengine.com/operate/endpoints - name: Files description: Compatibility file listing, preview, download, and deletion operations. externalDocs: description: Files compatibility guide url: https://docs.revoengine.com/operate/files - name: Groups description: Groups, membership, avatars, and lifecycle. externalDocs: description: Groups guide url: https://docs.revoengine.com/operate/groups - name: Instance Vault description: Operations in the Instance Vault Platform API domain. externalDocs: description: Secrets and Vault guide url: https://docs.revoengine.com/operate/secrets - name: Me description: Current user profile, keys, avatar, and session information. externalDocs: description: Authentication guide url: https://docs.revoengine.com/developers/authentication - name: Native tests description: Operations in the Native tests Platform API domain. externalDocs: description: Native tests guide url: https://docs.revoengine.com/build/native-tests - name: Observability description: Authorized execution, performance, graph, and log evidence. externalDocs: description: Observability guide url: https://docs.revoengine.com/operate/observability - name: Preferences description: User and instance preference values. externalDocs: description: Platform UI guide url: https://docs.revoengine.com/platform/ui-tour - name: Role Groups description: Role groups, members, assigned roles, and lifecycle. externalDocs: description: Permissions guide url: https://docs.revoengine.com/operate/permissions - name: Roles description: Available platform roles and role details. externalDocs: description: Permissions guide url: https://docs.revoengine.com/operate/permissions - name: Search description: Cross-domain search over objects visible to the caller. externalDocs: description: Search and discovery guide url: https://docs.revoengine.com/platform/search - name: Secrets description: >- Secret definitions, revision history, explicit rotation, activation, reveal, disable, and destruction. externalDocs: description: Secrets guide url: https://docs.revoengine.com/operate/secrets - name: Share description: >- Short-lived authenticated links to supported application routes and grid state. externalDocs: description: Platform API share-link guide url: >- https://docs.revoengine.com/developers/platform-api#share-application-context - name: Storage description: >- Storage workspaces, folders, objects, upload sessions, signed access, and lifecycle. externalDocs: description: Storage guide url: https://docs.revoengine.com/operate/storage - name: Studio description: >- Manage durable Studio coding sessions, participants, shared discussion, tests, review and explicitly activated releases. Available only on enabled instances. externalDocs: description: Studio sessions guide url: https://docs.revoengine.com/build/studio-sessions externalDocs: description: Documentation url: https://docs.revoengine.com paths: /api/v1/studio/sessions/{sessionId}/patch: post: tags: - Studio summary: Patch Studio working files description: >- Applies full-content changes or a V4A patch atomically using each affected file revision and digest. A conflict preserves the existing workspace and returns merge information. operationId: StudioController_patch parameters: - name: sessionId required: true in: path schema: type: string requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/StudioPatchDto' responses: '201': description: '' security: - bearer: [] components: schemas: StudioPatchDto: type: object properties: operationId: type: string format: uuid description: Caller-generated UUID idempotency key for this exact operation. changes: maxItems: 100 minItems: 1 type: array items: $ref: '#/components/schemas/StudioFileChangeDto' createFiles: maxItems: 100 minItems: 1 description: >- Create absent workspace paths with exact text, preserving line endings and the final newline. Can be combined with revision-guarded changes, up to 100 total operations; cannot be combined with a V4A patch. type: array items: $ref: '#/components/schemas/StudioCreateFileDto' patch: type: string description: Complete V4A patch. Creates/updates/deletes workspace files only. maxLength: 4000000 expectedFiles: maxItems: 100 type: array items: $ref: '#/components/schemas/StudioExpectedFileDto' required: - operationId StudioFileChangeDto: type: object properties: studioFileId: type: string format: uuid expectedRevision: type: integer minimum: 0 expectedDigest: type: string maxLength: 100 content: type: string maxLength: 2000000 required: - studioFileId - expectedRevision - expectedDigest - content StudioCreateFileDto: type: object properties: path: type: string maxLength: 512 kind: type: string enum: - source - test - fixture - poc - configuration - scratch content: type: string maxLength: 2000000 required: - path - kind - content StudioExpectedFileDto: type: object properties: studioFileId: type: string format: uuid expectedRevision: type: integer minimum: 0 expectedDigest: type: string maxLength: 100 required: - studioFileId - expectedRevision - expectedDigest securitySchemes: bearer: scheme: bearer bearerFormat: JWT description: Bearer JWT token or API Key (sk-*). type: http ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.