Capabilities

Each capability has an HTML article, a Markdown twin, and a JSON record. Support cells stay unknown until sourced.

• collaboration

  Accountable human handoff

  Transfer responsibility to a named person or queue with context, status, deadline, and acknowledgement.

  Markdown · JSON

• security-privacy

  Administrative policy controls

  Centrally enforce model, tool, connector, data, sharing, approval, and autonomy boundaries.

  Markdown · JSON

• interfaces

  Agent Plugins failure isolation

  Reject invalid components narrowly without disabling valid components in the same package.

  Markdown · JSON

• interfaces

  Agent Plugins packaged MCP

  Load MCP server configuration contained in an Agent Plugins package.

  Markdown · JSON

• interfaces

  Agent Plugins packaged skills

  Load portable Agent Skills contained in an Agent Plugins package.

  Markdown · JSON

• interfaces

  Agent Plugins portable manifest

  Load the published portable plugin.json manifest and its core components.

  Markdown · JSON

• runtime

  Agent Skills

  Track every important Agent Skills behavior independently.

  Markdown · JSON

• runtime

  Agent Skills core and discovery

  Recognize, discover, and load reusable instruction packages centered on SKILL.md.

  Markdown · JSON

• runtime

  Agent Skills manual invocation

  Let a user or agent explicitly select and activate a named skill.

  Markdown · JSON

• runtime

  Agent Skills progressive loading

  Load skill metadata first and defer full instructions or resources until relevant.

  Markdown · JSON

• runtime

  Agent Skills references and assets

  Resolve supporting reference files, templates, and assets from a skill package.

  Markdown · JSON

• runtime

  Agent Skills scripts

  Resolve and execute optional scripts included with an Agent Skill under explicit runtime policy.

  Markdown · JSON

• interfaces

  AGENTS.md root instructions

  Discover and apply the cross-agent AGENTS.md convention at repository scope.

  Markdown · JSON

• collaboration

  Artifact and workspace export

  Transfer generated files, patches, repositories, reports, media, and structured results with provenance.

  Markdown · JSON

• perception

  Audio file upload and understanding

  Upload recorded audio and expose its supported speech, timing, speaker, or acoustic content.

  Markdown · JSON

• security-privacy

  Audit logs and actor attribution

  Attribute and export security-relevant user, agent, tool, data, approval, and policy events.

  Markdown · JSON

• models-context

  Automatic context compaction

  Continue long sessions by automatically summarizing or pruning older context.

  Markdown · JSON

• runtime

  Background agents

  Keep a run going after the operator leaves the session.

  Markdown · JSON

• tools

  Browser automation

  Drive a browser for clicks, forms, and navigation.

  Markdown · JSON

• tools

  Code execution

  Run generated code in a sandbox.

  Markdown · JSON

• collaboration

  Collaboration and portability

  Track team access, shared context, accountable handoff, and portable outputs independently.

  Markdown · JSON

• runtime

  Computer use

  Inspect and act on a visual interface through screenshots and input actions.

  Markdown · JSON

• runtime

  Concurrent subagents

  Run multiple child-agent tasks concurrently with explicit queue and fan-out limits.

  Markdown · JSON

• tools

  Connectors

  Reach mail, chat, calendar, or issue trackers the user authorizes.

  Markdown · JSON

• models-context

  Context compaction controls

  Trigger, inspect, configure, or disable context compaction.

  Markdown · JSON

• models-context

  Context usage visibility

  Inspect consumed or remaining context budget during a conversation or run.

  Markdown · JSON

• models-context

  Context window and effective input limit

  Record the advertised and effective maximum input budget by model and harness mode.

  Markdown · JSON

• collaboration

  Controlled conversation sharing

  Share a run with explicit identity, permission, revocation, redaction, and update semantics.

  Markdown · JSON

• collaboration

  Conversation and run export

  Export a documented, portable run record with messages, actions, provenance, and status.

  Markdown · JSON

• interfaces

  Custom instructions

  Persist project or user instruction files.

  Markdown · JSON

• security-privacy

  Data residency and processing location controls

  Control and document storage, inference, transient processing, logging, and backup regions.

  Markdown · JSON

• security-privacy

  Data retention and deletion controls

  Configure and verify retention and deletion across user content, logs, memory, and backups.

  Markdown · JSON

• security-privacy

  Data security and administrative controls

  Track data handling and administrative control boundaries as independent capabilities.

  Markdown · JSON

• tools

  Diffs and patches

  Propose and apply file diffs without a full git flow.

  Markdown · JSON

• security-privacy

  Encryption and key controls

  Record transport and at-rest encryption plus customer key scope, rotation, and revocation.

  Markdown · JSON

• operations

  Failure recovery and safe retry

  Recover from model, tool, connector, worker, and network failures without unsafe duplicate effects.

  Markdown · JSON

• perception

  File and media inputs

  Track accepted file types, model-visible content, preprocessing, and upload limits separately.

  Markdown · JSON

• perception

  File upload limits and quota visibility

  Record numeric attachment size, count, page, duration, storage, and rolling quotas.

  Markdown · JSON

• tools

  Git and pull requests

  Inspect diffs and open or review pull requests.

  Markdown · JSON

• runtime

  Human approval

  Pause before a tool or write until a person confirms.

  Markdown · JSON

• perception

  Image upload and paste

  Attach, paste, or select an image whose visual content reaches the model.

  Markdown · JSON

• models-context

  Local models

  Run against a model hosted on the operator's machine.

  Markdown · JSON

• security-privacy

  Local-only and offline operation

  Run a documented workflow without required hosted inference, storage, control-plane, or telemetry dependencies.

  Markdown · JSON

• runtime

  Long-term memory

  Persist notes across sessions.

  Markdown · JSON

• interfaces

  MCP Apps

  Render an interactive interface returned by an MCP server inside the product.

  Markdown · JSON

• interfaces

  MCP cancellation

  Cancel an in-flight MCP request and handle cancellation correctly.

  Markdown · JSON

• interfaces

  MCP client role

  Consume capabilities exposed by MCP servers.

  Markdown · JSON

• interfaces

  MCP elicitation

  Handle structured user-input requests initiated by an MCP server.

  Markdown · JSON

• interfaces

  MCP legacy HTTP and SSE

  Connect through the superseded HTTP plus SSE transport when migration compatibility is required.

  Markdown · JSON

• interfaces

  MCP list-changed notifications

  Refresh capability lists when a server announces dynamic changes.

  Markdown · JSON

• interfaces

  MCP logging

  Receive structured log messages emitted by an MCP server.

  Markdown · JSON

• interfaces

  MCP OAuth authorization

  Complete the MCP authorization flow for protected remote servers.

  Markdown · JSON

• interfaces

  MCP progress notifications

  Receive progress updates for long-running requests.

  Markdown · JSON

• interfaces

  MCP prompt-list notifications

  Refresh prompt templates after a server announces changes.

  Markdown · JSON

• interfaces

  MCP prompts

  Invoke reusable MCP prompt templates.

  Markdown · JSON

• interfaces

  MCP Registry metadata

  Discover MCP servers and metadata through the official registry model.

  Markdown · JSON

• interfaces

  MCP resource subscriptions

  Subscribe to resource changes and receive update notifications.

  Markdown · JSON

• interfaces

  MCP resources

  Read MCP resources as live context.

  Markdown · JSON

• interfaces

  MCP revision compatibility

  Implement or negotiate the exact dated MCP revision.

  Markdown · JSON

• interfaces

  MCP roots

  Provide filesystem or workspace roots to an MCP server.

  Markdown · JSON

• interfaces

  MCP sampling

  Handle server requests for model sampling through the client.

  Markdown · JSON

• interfaces

  MCP server instructions

  Consume server-provided instructions during initialization.

  Markdown · JSON

• interfaces

  MCP server role

  Expose capabilities from the harness as an MCP server.

  Markdown · JSON

• interfaces

  MCP stdio transport

  Connect to a local MCP server over standard input and output.

  Markdown · JSON

• interfaces

  MCP Streamable HTTP

  Connect to an MCP server over the current Streamable HTTP transport.

  Markdown · JSON

• interfaces

  MCP task listing

  List and page through tasks exposed by the task utility.

  Markdown · JSON

• interfaces

  MCP tasks

  Create, inspect, and manage long-running MCP tasks.

  Markdown · JSON

• interfaces

  MCP tools

  Invoke operations exposed by a Model Context Protocol server.

  Markdown · JSON

• interfaces

  Model Context Protocol

  Track tools, prompts, resources, and interactive apps as independent parts of MCP.

  Markdown · JSON

• models-context

  Model fallback visibility and control

  Detect, configure, or prevent fallback to another model during a run.

  Markdown · JSON

• models-context

  Model selection

  Choose the model or documented model class used for a run.

  Markdown · JSON

• security-privacy

  Model training and improvement controls

  Disclose and control training, improvement, evaluation, safety review, and feedback use.

  Markdown · JSON

• models-context

  Models and context

  Track model access and the full lifecycle of input, output, compaction, and cached context.

  Markdown · JSON

• tools

  Multi-file edit

  Change several files in one reviewed step.

  Markdown · JSON

• interfaces

  Native plugin system

  Install and load a product-specific extension package.

  Markdown · JSON

• interfaces

  Nested AGENTS.md instructions

  Apply nested AGENTS.md files with directory-sensitive precedence.

  Markdown · JSON

• runtime

  Nested subagents

  Allow a child agent to delegate further work to another child agent.

  Markdown · JSON

• models-context

  Output token limit

  Record the maximum generated response budget by exact model and harness mode.

  Markdown · JSON

• perception

  PDF documents

  Upload a PDF and make its text, layout, and supported visual content available as context.

  Markdown · JSON

• runtime

  Per-subagent model selection

  Choose or constrain each child agent's model independently of the parent.

  Markdown · JSON

• interfaces

  Persistent instructions

  Track portable and product-native instruction discovery independently.

  Markdown · JSON

• operations

  Plan and pricing disclosure

  Publish plan gates, included usage, variable charges, overages, and relevant billing terms.

  Markdown · JSON

• interfaces

  Plugin marketplace and installation

  Discover, install, update, and remove extensions through a registry or marketplace.

  Markdown · JSON

• interfaces

  Plugin systems

  Track portable and product-native extension capabilities independently.

  Markdown · JSON

• interfaces

  Plugin vendor extensions

  Preserve namespaced host-specific behavior without representing it as portable core support.

  Markdown · JSON

• interfaces

  Product-native rules

  Discover persistent or path-scoped instructions in the product's own rule format.

  Markdown · JSON

• runtime

  Project-scoped Agent Skills

  Discover skills installed for a repository or workspace.

  Markdown · JSON

• models-context

  Prompt and context cache reuse

  Reuse eligible repeated prompt context with documented latency or billing semantics.

  Markdown · JSON

• models-context

  Prompt cache controls

  Mark, retain, refresh, or invalidate cached prompt context.

  Markdown · JSON

• models-context

  Prompt cache telemetry

  Inspect cache hits, misses, token counts, latency, or billing effects.

  Markdown · JSON

• operations

  Rate limit and quota disclosure

  Record numeric request, token, run, concurrency, upload, and tool quotas with reset behavior.

  Markdown · JSON

• perception

  Realtime voice

  Speak and listen over a live audio session.

  Markdown · JSON

• models-context

  Reasoning effort controls

  Choose a documented reasoning depth, effort, or budget for a run.

  Markdown · JSON

• operations

  Resumable runs

  Reconnect or continue after closure, disconnection, restart, pause, or worker migration.

  Markdown · JSON

• collaboration

  Role-based collaboration access

  Enforce granular view, edit, run, approve, share, export, billing, and administrative rights.

  Markdown · JSON

• operations

  Run timeout and duration limits

  Record foreground, background, tool, sandbox, idle, approval, and child-agent time limits.

  Markdown · JSON

• operations

  Run, approval, and failure notifications

  Notify operators about completion, failure, approvals, budgets, deadlines, and stalled work.

  Markdown · JSON

• runtime

  Sandbox network

  Allow or deny outbound network from a tool sandbox.

  Markdown · JSON

• runtime

  Scheduled runs

  Start a task on a timer without a human prompt.

  Markdown · JSON

• perception

  Screenshots

  Capture the current screen or window as context.

  Markdown · JSON

• security-privacy

  Secrets management and redaction

  Store and inject credentials with scoping, masking, rotation, approval, and audit controls.

  Markdown · JSON

• collaboration

  Shared projects and team context

  Share durable project instructions, files, memory, conversations, agents, and access rules.

  Markdown · JSON

• interfaces

  Streaming output

  Show tokens and tool events as they arrive.

  Markdown · JSON

• interfaces

  Structured output

  Return JSON or schema-validated objects.

  Markdown · JSON

• runtime

  Structured subagent result handoff

  Return structured child status, findings, citations, files, diffs, and errors to the parent.

  Markdown · JSON

• runtime

  Subagent approval and permission boundaries

  Control inherited grants, approval prompts, least privilege, escalation, and descendant authority.

  Markdown · JSON

• runtime

  Subagent context isolation and inheritance

  Define and control the conversation, instructions, files, memory, tools, and secrets inherited by a child.

  Markdown · JSON

• runtime

  Subagent delegation

  Delegate a bounded task to another agent process.

  Markdown · JSON

• runtime

  Subagent lifecycle controls

  List, inspect, pause, resume, cancel, retry, and time-limit child-agent tasks.

  Markdown · JSON

• runtime

  Subagent MCP access

  Allow a child agent to use MCP tools or declare its own MCP servers.

  Markdown · JSON

• runtime

  Subagent write access

  Allow a child agent to create or modify project files.

  Markdown · JSON

• runtime

  Subagents

  Track child-agent execution, isolation, permissions, supervision, and handoff independently.

  Markdown · JSON

• tools

  Terminal commands

  Propose or execute shell commands in a project environment.

  Markdown · JSON

• perception

  Text and office document input

  Upload common text, word-processing, presentation, and spreadsheet formats as model context.

  Markdown · JSON

• operations

  Usage and cost metering

  Inspect per-run and aggregate model, cache, tool, compute, storage, and delegated usage.

  Markdown · JSON

• operations

  Usage, cost, and run reliability

  Track the economic and operational envelope around each harness run.

  Markdown · JSON

• runtime

  User-scoped Agent Skills

  Discover personal or global skills outside the current project.

  Markdown · JSON

• perception

  Video preprocessing disclosure

  Explain frame, audio, transcript, resizing, truncation, and context-accounting behavior.

  Markdown · JSON

• perception

  Video upload and understanding

  Upload a video and expose documented visual, audio, transcript, and timing information to the model.

  Markdown · JSON

• tools

  Web fetch

  Retrieve live web pages or APIs during a run.

  Markdown · JSON

• interfaces

  WebMCP

  Expose website functionality as structured tools through a browser-mediated agent boundary.

  Markdown · JSON

• interfaces

  WebMCP declarative form tools

  Expose semantic HTML forms as structured tools through WebMCP annotations.

  Markdown · JSON

• interfaces

  WebMCP execution cancellation

  Cancel pending tool registration or execution through abort signals and lifecycle rules.

  Markdown · JSON

• interfaces

  WebMCP imperative tools

  Register JavaScript-backed tools through document.modelContext.registerTool().

  Markdown · JSON

• interfaces

  WebMCP permissions policy

  Gate tool exposure across documents and origins through the tools permissions policy.

  Markdown · JSON

• interfaces

  WebMCP security annotations

  Communicate read-only and untrusted-content hints across the site-to-agent boundary.

  Markdown · JSON

• interfaces

  WebMCP tool discovery

  Expose the active page tool list and schemas to a WebMCP-aware agent.

  Markdown · JSON

• interfaces

  WebMCP tool execution

  Invoke a page tool with structured arguments and return its result to the agent.

  Markdown · JSON

• tools

  Workspace files

  Read and edit files inside a user-selected local project.

  Markdown · JSON

• tools

  Workspace search

  Search a codebase or knowledge tree before editing.

  Markdown · JSON