CLI harness · Google

Gemini CLI

Interactive terminal agent with filesystem, shell, web, and MCP tools.

ProductGemini CLIGoogleCLI · 47/114 current cells reviewed

Catalog twins:MarkdownJSON

Surface
CLI
Execution
local
Target type
release
Default environment
local default
Tracks
Current, Preview
Latest current evidence
2026-08-28

Description and scope

About this harness

This profile represents one exact product surface—not every product from Google.

Gemini CLI appears here as a CLI column so a capability page can show this harness next to others.

Support cells for this surface are published only when a dated note cites reviewable public evidence; every other cell remains unknown.

Current-track snapshot

Support at a glance

47 of 114 atomic capabilities have a reviewed current status.

Research coverage41%
23 unique public sources on the current track
Supported
38
Public evidence supports the current claim.
Partial
7
Supported with a documented condition or limit.
Unsupported
2
A current source explicitly says no.
Unknown
67
No sufficiently scoped public evidence is published yet.
Unknown is not “unsupported.” It means this exact product-and-capability cell has not passed the catalog’s evidence bar. Conditions such as plan, platform, preview access, policy, and runtime stay attached to individual rows below.

Provider and standards provenance

Reviewed public references

These links support individual capability cells. They are not a product-wide certification.

Atomic capability ledger

Capability support

Open a capability record for its full notes, qualifiers, targets, and source links.

114 capabilities
CapabilityCurrentPreviewCurrent evidence and conditions
InterfacesAgent Plugins failure isolation

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesAgent Plugins packaged MCP

Load MCP server configuration contained in an Agent Plugins package.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesAgent Plugins packaged skills

Load portable Agent Skills contained in an Agent Plugins package.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesAgent Plugins portable manifest

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeAgent Skills core and discovery

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI Agent Skills documentationNo additional condition recorded.Evidence and notes →
RuntimeAgent Skills manual invocation

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

PPartial?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI Agent Skills documentation
  • runtime: named enable, disable, reload, and link controls plus per-activation consent are documented; direct `/skill-name` invocation was not established by the reviewed guide
Evidence and notes →
RuntimeAgent Skills progressive loading

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI Agent Skills documentationNo additional condition recorded.Evidence and notes →
RuntimeAgent Skills references and assets

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI Agent Skills documentation
  • policy: the user must approve skill activation before it can access bundled resources
Evidence and notes →
RuntimeAgent Skills scripts

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI Agent Skills documentation
  • policy: the user must approve each skill activation before the skill can execute scripts or access files
Evidence and notes →
InterfacesAGENTS.md root instructions

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

PPartial?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI context-file documentation
  • runtime: requires adding AGENTS.md to context.fileName because GEMINI.md is the default context filename
Evidence and notes →
CollaborationArtifact export

Download generated files and other documented outputs.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Files and mediaAudio file input

Upload recorded audio for use as model input.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI custom-command documentation
  • runtime: supported audio files referenced with @{...} inside a custom command are encoded and injected as multimodal input
  • runtime: accepted audio formats, ordinary-prompt attachment methods, transcripts, timestamps, diarization, and acoustic semantics are not established by the reviewed page
Evidence and notes →
Security and privacyAudit logs

Record security-relevant activity in an administrative audit log.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Models and contextAutomatic context compaction

Continue long sessions by automatically summarizing or pruning older context.

YSupported?Unknown2 public referencesLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: the core automatically compresses chat history near the model limit; model.compressionThreshold controls the trigger and defaults to 0.5
Evidence and notes →
RuntimeBackground agents

Keep a run going after the operator leaves the session.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
ToolsBrowser automation

Control a browser for navigation, clicks, forms, and page reading.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
ToolsCode execution

Run generated code in a documented execution environment.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeComputer use

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeConcurrent subagents

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
ToolsConnectors

Connect to external services authorized by the user or organization.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Models and contextContext compaction controls

Trigger, inspect, configure, or disable context compaction.

YSupported?Unknown2 public referencesLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: /compress replaces chat context with a high-level summary; model.compressionThreshold configures the automatic trigger fraction and defaults to 0.5
Evidence and notes →
Models and contextContext usage

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Models and contextContext window

Record the documented context-window limit by product, model, and mode.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
CollaborationConversation export

Export conversation history in a documented format.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
CollaborationConversation sharing

Share a conversation through a documented link or invitation.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesCustom instructions

Persist instructions at user or project scope.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Security and privacyData residency

Select or document geographic storage or processing regions.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Security and privacyData retention controls

Configure or document retention and deletion for covered product data.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
ToolsDiffs and patches

Propose or apply file changes as diffs or patches.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Files and mediaDocument input

Upload common document formats for use as model input.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Security and privacyEncryption key management

Record documented encryption key ownership, scope, rotation, and revocation.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Files and mediaFile upload limits

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeHuman approval

Pause before a tool action or file change until a person confirms.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • policy: security policy and sandbox configuration still determine the effective execution boundary
Evidence and notes →
Files and mediaImage input

Attach, paste, or select an image for use as model input.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI custom-command documentation
  • runtime: supported image files, with PNG and JPEG given as examples, are encoded and injected as multimodal input when referenced with @{...} in a custom command
  • runtime: this evidence establishes custom-command file injection, not every ordinary-prompt attachment or clipboard path
Evidence and notes →
Models and contextLocal models

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeLong-term memory

Persist notes across sessions.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP Apps

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP cancellation

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP client role

Consume capabilities exposed by MCP servers.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · Gemini CLI MCP documentation updated 2026-06-18
  • policy: configured server enablement, workspace trust, tool confirmation, and server health determine which capabilities are available
Evidence and notes →
InterfacesMCP elicitation

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

NUnsupported?Unknown1 public referenceLatest evidence 2026-08-28release · Gemini CLI v0.57.0
  • protocol revision: this finding covers the classic elicitation/create client capability; MCP 2026-07-28 multi-round-trip semantics are not claimed
Evidence and notes →
InterfacesMCP legacy HTTP and SSE

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · Gemini CLI MCP documentation updated 2026-06-18
  • transport: SSE endpoints can use headers or OAuth; new deployments should prefer Streamable HTTP where available
Evidence and notes →
InterfacesMCP list-changed notifications

Refresh capability lists when a server announces dynamic changes.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28release · Gemini CLI v0.57.0
  • protocol revision: evidence covers the tool, resource, and prompt list_changed notification handlers in the v0.57.0 MCP client
Evidence and notes →
InterfacesMCP logging

Receive structured log messages emitted by an MCP server.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP OAuth authorization

Complete the MCP authorization flow for protected remote servers.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · Gemini CLI MCP documentation updated 2026-06-18
  • auth: browser-based OAuth requires local callback access; headless, remote SSH, and container environments need an alternative authentication arrangement
Evidence and notes →
InterfacesMCP progress notifications

Receive progress updates for long-running requests.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP prompt-list notifications

Refresh prompt templates after a server announces changes.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP prompts

Invoke reusable MCP prompt templates.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · Gemini CLI MCP documentation updated 2026-06-18
  • runtime: slash commands appear only for prompts discovered from connected servers
Evidence and notes →
InterfacesMCP Registry metadata

Discover MCP servers and metadata through the official registry model.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP resource subscriptions

Subscribe to resource changes and receive update notifications.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP resources

Read MCP resources as live context.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · Gemini CLI MCP documentation updated 2026-06-18
  • runtime: exact resource availability, URI schemes, and media types depend on the connected server
Evidence and notes →
InterfacesMCP revision compatibility

Implement or negotiate the exact dated MCP revision.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP roots

Provide filesystem or workspace roots to an MCP server.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28release · Gemini CLI v0.57.0
  • runtime: roots are derived from the CLI workspace context and change notifications follow workspace-directory updates
  • protocol revision: evidence covers the pre-2026 roots/list request flow implemented by Gemini CLI v0.57.0
Evidence and notes →
InterfacesMCP sampling

Handle server requests for model sampling through the client.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP server instructions

Consume server-provided instructions during initialization.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP server role

Expose capabilities from the harness as an MCP server.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP stdio transport

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · Gemini CLI MCP documentation updated 2026-06-18
  • transport: stdio servers are started only for trusted folders and use the configured command, arguments, environment, and working directory
Evidence and notes →
InterfacesMCP Streamable HTTP

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · Gemini CLI MCP documentation updated 2026-06-18
  • transport: the configured endpoint must be reachable and can require headers, OAuth, or other documented authentication providers
Evidence and notes →
InterfacesMCP task listing

List and page through tasks exposed by the task utility.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP tasks

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesMCP tools

Invoke operations exposed by a Model Context Protocol server.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentationNo additional condition recorded.Evidence and notes →
Models and contextModel fallback

Switch to another model after a documented failure condition.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28hosted observation · 2026-08-28 Gemini CLI documentation observation
  • runtime: model fallback is enabled by default and can trigger after quota or server errors; the CLI normally prompts for consent before switching
  • policy: a routing policy can permit silent fallback for the current turn or remainder of the session; internal utility calls have a separate silent fallback chain
  • runtime: the reviewed page identifies fallback behavior but does not provide an exported per-turn routing provenance record
Evidence and notes →
Models and contextModel selection

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: /model and --model expose automatic model classes and manual model selection; this setting does not override models used by subagents
Evidence and notes →
ToolsMulti-file edit

Edit multiple files during one task.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesNative plugin system

Install and load a product-specific extension package.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesNested AGENTS.md instructions

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

PPartial?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI context-file documentation
  • runtime: hierarchical and just-in-time discovery applies only after AGENTS.md is added to context.fileName; GEMINI.md is the default
Evidence and notes →
RuntimeNested subagents

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

NUnsupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: recursion protection removes other agents from every child tool surface
Evidence and notes →
Security and privacyOffline operation

Run a documented workflow without a required network connection.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Security and privacyOrganization policy controls

Centrally configure and enforce product settings for an organization.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Models and contextOutput token limit

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Files and mediaPDF input

Upload a PDF for use as model input.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI custom-command documentation
  • runtime: supported PDF files referenced with @{...} inside a custom command are encoded and injected as multimodal input
  • runtime: this evidence establishes custom-command file injection; PDF limits, OCR behavior, and ordinary-prompt attachment methods are not established by the reviewed page
Evidence and notes →
RuntimePer-subagent model selection

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

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: agent definitions and overrides can select a child model; /model and --model do not override child models
Evidence and notes →
Pricing, usage, and limitsPlans and pricing

Compare documented plan, seat, included-usage, credit, and overage pricing by exact product.

PPartial?Unknown1 public referenceLatest evidence 2026-08-28hosted observation · 2026-08-28 Gemini CLI plans observation
  • auth: Google Account Free, Google AI Pro or Ultra, Google Developer Program, AI Studio API key, and Vertex AI authentication and billing paths are documented
  • plan: the reviewed Gemini CLI plans page describes usage and privacy differences but delegates exact Google AI subscription prices to linked plan details
Evidence and notes →
InterfacesPlugin marketplace

Discover and install extensions through a documented registry or marketplace.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesPlugin vendor extensions

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesProject rules

Load persistent or path-scoped instructions from a documented product rule format.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI context-file documentationNo additional condition recorded.Evidence and notes →
RuntimeProject-scoped Agent Skills

Discover skills installed for a repository or workspace.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI Agent Skills documentationNo additional condition recorded.Evidence and notes →
Models and contextPrompt cache controls

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Models and contextPrompt cache telemetry

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

PPartial?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: /stats displays cached-token savings when caching is available; the reviewed page does not establish hit/miss events or retained historical telemetry
Evidence and notes →
Models and contextPrompt caching

Reuse eligible repeated prompt content under documented caching behavior.

PPartial?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: automatic caching reuses previous system instructions and context for Gemini API-key and Vertex AI users
  • policy: OAuth users through Google Personal or Enterprise Code Assist do not receive cached-content creation
Evidence and notes →
ToolsPull request integration

Open or review pull requests through a documented integration.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Pricing, usage, and limitsRate limits and quotas

Record documented product usage limits and reset periods.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Files and mediaRealtime voice

Speak and listen over a live audio session.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Models and contextReasoning effort controls

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
CollaborationRole-based access control (RBAC)

Assign and enforce permissions through documented roles.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeSandbox network access

Allow, deny, or restrict outbound network access from a tool sandbox.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI sandbox configuration
  • runtime: sandboxing is configurable and disabled by default; tools.sandboxNetworkAccess defaults to false and changes require restart
Evidence and notes →
RuntimeScheduled runs

Start a task on a schedule without a new human prompt.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Files and mediaScreenshots

Capture a screen, window, or browser page for use as model input.

PPartial?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI browser-agent documentation
  • runtime: the optional browser agent gains an analyze_screenshot tool that captures a browser screenshot and sends it to a configured vision model
  • plan: requires API-key or Vertex AI authentication and is unavailable with Sign in with Google
  • runtime: browser-only capture does not establish arbitrary desktop, application-window, or multi-monitor screenshot support
Evidence and notes →
Security and privacySecrets management

Store and provide credentials through a documented secrets feature.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Pricing, usage, and limitsSession resume

Continue a previously saved product session.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI session-management documentation
  • runtime: resume history is project-scoped and subject to configured retention and deletion
Evidence and notes →
CollaborationShared projects

Share a product-defined project workspace with other people.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesStreaming output

Show text or tool events as they arrive during a run.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesStructured outputs

Return JSON or schema-constrained output through a documented product feature.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI headless-mode documentation
  • runtime: documented JSON output is a product-defined response and statistics envelope; this evidence does not establish caller-supplied JSON Schema conformance
Evidence and notes →
RuntimeSubagent context

Define which conversation, instructions, files, memory, and tools a child receives.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: a child has independent history and only explicitly granted tools; it cannot invoke another subagent even when granted the all-tools wildcard
Evidence and notes →
RuntimeSubagent delegation

Delegate a bounded task to another agent process.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: the main agent can automatically choose a matching subagent or be nudged to a named specialist with @agent syntax
Evidence and notes →
RuntimeSubagent management

List, inspect, and control child-agent tasks.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeSubagent MCP access

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeSubagent permissions

Control child-agent tools, inherited permissions, and approval behavior.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • policy: tool lists, inline or inherited MCP servers, and named policy rules can be scoped to a child; recursion protection always removes other agents
Evidence and notes →
RuntimeSubagent results

Return a child agent's findings or work to the parent.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentation
  • runtime: findings return to the parent, but no typed artifact, citation, diff, status, or error schema is documented
Evidence and notes →
RuntimeSubagent write access

Allow a child agent to create or modify project files.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
ToolsTerminal commands

Propose or execute shell commands in a project environment.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentationNo additional condition recorded.Evidence and notes →
Security and privacyTraining data controls

Control or document model-training and service-improvement use of product content.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
Pricing, usage, and limitsUsage metering

Inspect documented product usage such as requests, tokens, or cost.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
RuntimeUser-scoped Agent Skills

Discover personal or global skills outside the current project.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI Agent Skills documentationNo additional condition recorded.Evidence and notes →
Files and mediaVideo input

Upload or select a video for use as model input.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI custom-command documentation
  • runtime: supported video files referenced with @{...} inside a custom command are encoded and injected as multimodal input
  • runtime: accepted containers, codecs, limits, frame sampling, timecodes, temporal reasoning, audio handling, and ordinary-prompt attachment methods are not established by the reviewed page
Evidence and notes →
ToolsWeb fetch

Retrieve live web pages or APIs during a run.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI web fetch documentation
  • policy: shows a confirmation dialog for converted URLs and always requires explicit confirmation in Plan Mode
Evidence and notes →
InterfacesWebMCP declarative form tools

Expose semantic HTML forms as structured tools through WebMCP annotations.

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesWebMCP execution cancellation

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesWebMCP imperative tools

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesWebMCP permissions policy

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesWebMCP security annotations

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesWebMCP tool discovery

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
InterfacesWebMCP tool execution

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

?Unknown?UnknownNo reviewed current evidenceThis remains unknown; it is not an unsupported claim.Open capability record →
ToolsWorkspace files

Read or edit files inside a user-selected project.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI documentationNo additional condition recorded.Evidence and notes →
ToolsWorkspace search

Search file names, text, or symbols across a workspace.

YSupported?Unknown1 public referenceLatest evidence 2026-08-28dated documentation · current Gemini CLI file-system tools documentationNo additional condition recorded.Evidence and notes →