chore(deps)(deps): bump the genkit group with 8 updates

[dependabot]

Bumps the genkit group with 8 updates:

Package	From	To
@genkit-ai/compat-oai	1.36.0	1.39.0
@genkit-ai/next	1.36.0	1.39.0
genkit	1.38.0	1.39.0
genkit-cli	1.36.0	1.39.0
@genkit-ai/ai	1.38.0	1.39.0
@genkit-ai/core	1.38.0	1.39.0
@genkit-ai/firebase	1.38.0	1.39.0
@genkit-ai/google-cloud	1.38.0	1.39.0

Updates @genkit-ai/compat-oai from 1.36.0 to 1.39.0

Release notes

Sourced from @​genkit-ai/compat-oai's releases.

Genkit JS and CLI 1.39.0

⚠️ Breaking changes (beta)

• The beta Chat API has been removed and replaced by the new Agents API (#5248, #5251). The Chat class, ai.chat(...), and session.chat(...) are gone. Migrate to ai.defineAgent(...) and agent.chat() (see Agents below). All removed surface was beta.

---

This release introduces Agents, a first-class, multi-turn agent API for Genkit JS. Agents bundle a model/prompt, conversational state, tool loops, interrupts, persistence, streaming, and abort/resume into a single ergonomic, transport-agnostic surface that runs identically in-process on the server and over HTTP from the browser.

Highlights

defineAgent — the new Agents API (#5251)

Define a multi-turn agent in a single call, with three levels of control:

// Zero-config
const agent = ai.defineAgent({
  name: 'assistant',
  model: 'googleai/gemini-flash-latest',
  system: 'You are a helpful assistant.',
  tools: [searchTool],
});
// Reuse a registered .prompt (typed promptInput)
const agent = ai.definePromptAgent({ promptName: 'assistant', promptInput: { role: 'pirate' } });
// Full control via a custom turn handler
const agent = ai.defineCustomAgent({ name: 'custom' }, async (runner, input) => { /* ... */ });

Key capabilities:

• Stateful, multi-turn chats — chat() threads state, messages, snapshotId, and sessionId for you (send & stream).
• Typed custom state with Zod validation (stateSchema).
• Pluggable persistence via SessionStore (in-memory + file stores included); server-managed sessions resumable by sessionId.
• Streaming with live custom-state patches over the wire (JSON Patch).
• Interrupts & resume (restart / respond) for human-in-the-loop tools.
• Abort, detach (background turns) + heartbeats, and graceful failure that preserves the last-good state.
• clientTransform to redact/reshape state and stream chunks before they leave the server.
• Same API server or browser — remoteAgent(...) returns the same AgentAPI shape over HTTP.

Agents middleware: delegation & artifacts (#5252)

New @genkit-ai/middleware middlewares for building multi-agent, artifact-producing workflows:

• agents() — turns an agent into an orchestrator that delegates to other registered agents. Injects a dedicated delegate_to_<agent> tool per sub-agent, auto-discovers descriptions, returns sub-agent interrupts/failures as tool results, and adds guard rails (maxDelegations, historyLength).
• artifacts() — gives the model read_artifact / write_artifact tools backed by session state, with an <artifacts> listing injected each turn. Pair with agents({ artifactStrategy: 'session' }) so an orchestrator can read artifacts produced by its sub-agents.

useChat adapter for Agents — @genkit-ai/vercel-ai (#5426)

... (truncated)

Commits

• f37effb chore: JS version bump
• df98c2e chore: JS version bump
• 2a7d796 chore: JS version bump
• e1eca51 chore: JS version bump
• See full diff in compare view

Updates @genkit-ai/next from 1.36.0 to 1.39.0

Release notes

Sourced from @​genkit-ai/next's releases.

Genkit JS and CLI 1.39.0

⚠️ Breaking changes (beta)

• The beta Chat API has been removed and replaced by the new Agents API (#5248, #5251). The Chat class, ai.chat(...), and session.chat(...) are gone. Migrate to ai.defineAgent(...) and agent.chat() (see Agents below). All removed surface was beta.

---

This release introduces Agents, a first-class, multi-turn agent API for Genkit JS. Agents bundle a model/prompt, conversational state, tool loops, interrupts, persistence, streaming, and abort/resume into a single ergonomic, transport-agnostic surface that runs identically in-process on the server and over HTTP from the browser.

Highlights

defineAgent — the new Agents API (#5251)

Define a multi-turn agent in a single call, with three levels of control:

// Zero-config
const agent = ai.defineAgent({
  name: 'assistant',
  model: 'googleai/gemini-flash-latest',
  system: 'You are a helpful assistant.',
  tools: [searchTool],
});
// Reuse a registered .prompt (typed promptInput)
const agent = ai.definePromptAgent({ promptName: 'assistant', promptInput: { role: 'pirate' } });
// Full control via a custom turn handler
const agent = ai.defineCustomAgent({ name: 'custom' }, async (runner, input) => { /* ... */ });

Key capabilities:

• Stateful, multi-turn chats — chat() threads state, messages, snapshotId, and sessionId for you (send & stream).
• Typed custom state with Zod validation (stateSchema).
• Pluggable persistence via SessionStore (in-memory + file stores included); server-managed sessions resumable by sessionId.
• Streaming with live custom-state patches over the wire (JSON Patch).
• Interrupts & resume (restart / respond) for human-in-the-loop tools.
• Abort, detach (background turns) + heartbeats, and graceful failure that preserves the last-good state.
• clientTransform to redact/reshape state and stream chunks before they leave the server.
• Same API server or browser — remoteAgent(...) returns the same AgentAPI shape over HTTP.

Agents middleware: delegation & artifacts (#5252)

New @genkit-ai/middleware middlewares for building multi-agent, artifact-producing workflows:

• agents() — turns an agent into an orchestrator that delegates to other registered agents. Injects a dedicated delegate_to_<agent> tool per sub-agent, auto-discovers descriptions, returns sub-agent interrupts/failures as tool results, and adds guard rails (maxDelegations, historyLength).
• artifacts() — gives the model read_artifact / write_artifact tools backed by session state, with an <artifacts> listing injected each turn. Pair with agents({ artifactStrategy: 'session' }) so an orchestrator can read artifacts produced by its sub-agents.

useChat adapter for Agents — @genkit-ai/vercel-ai (#5426)

... (truncated)

Commits

• f37effb chore: JS version bump
• df98c2e chore: JS version bump
• b798ebf feat(js): add init data support to client and express handler (#5247)
• 2a7d796 chore: JS version bump
• e1eca51 chore: JS version bump
• See full diff in compare view

Updates genkit from 1.38.0 to 1.39.0

Commits

• f37effb chore: JS version bump
• df98c2e chore: JS version bump
• a7d3247 feat(js/plugins/google-cloud|firebase): implemented Firestore session store (...
• 510b447 feat(js): implemented defineAgent (#5251)
• dd1d2d2 refactor(js)!: remove Chat API and associated session methods (#5248)
• b798ebf feat(js): add init data support to client and express handler (#5247)
• 379bcda feat(js): implement bidi actions and flows (#4288)
• See full diff in compare view

Updates genkit-cli from 1.36.0 to 1.39.0

Commits

• 54c60aa chore: CLI version bump
• e4d9d5d chore: CLI version bump
• 13bdda8 chore: CLI version bump
• 271965a chore: CLI version bump
• See full diff in compare view

Updates @genkit-ai/ai from 1.38.0 to 1.39.0

Release notes

Sourced from @​genkit-ai/ai's releases.

Genkit JS and CLI 1.39.0

⚠️ Breaking changes (beta)

• The beta Chat API has been removed and replaced by the new Agents API (#5248, #5251). The Chat class, ai.chat(...), and session.chat(...) are gone. Migrate to ai.defineAgent(...) and agent.chat() (see Agents below). All removed surface was beta.

---

This release introduces Agents, a first-class, multi-turn agent API for Genkit JS. Agents bundle a model/prompt, conversational state, tool loops, interrupts, persistence, streaming, and abort/resume into a single ergonomic, transport-agnostic surface that runs identically in-process on the server and over HTTP from the browser.

Highlights

defineAgent — the new Agents API (#5251)

Define a multi-turn agent in a single call, with three levels of control:

// Zero-config
const agent = ai.defineAgent({
  name: 'assistant',
  model: 'googleai/gemini-flash-latest',
  system: 'You are a helpful assistant.',
  tools: [searchTool],
});
// Reuse a registered .prompt (typed promptInput)
const agent = ai.definePromptAgent({ promptName: 'assistant', promptInput: { role: 'pirate' } });
// Full control via a custom turn handler
const agent = ai.defineCustomAgent({ name: 'custom' }, async (runner, input) => { /* ... */ });

Key capabilities:

• Stateful, multi-turn chats — chat() threads state, messages, snapshotId, and sessionId for you (send & stream).
• Typed custom state with Zod validation (stateSchema).
• Pluggable persistence via SessionStore (in-memory + file stores included); server-managed sessions resumable by sessionId.
• Streaming with live custom-state patches over the wire (JSON Patch).
• Interrupts & resume (restart / respond) for human-in-the-loop tools.
• Abort, detach (background turns) + heartbeats, and graceful failure that preserves the last-good state.
• clientTransform to redact/reshape state and stream chunks before they leave the server.
• Same API server or browser — remoteAgent(...) returns the same AgentAPI shape over HTTP.

Agents middleware: delegation & artifacts (#5252)

New @genkit-ai/middleware middlewares for building multi-agent, artifact-producing workflows:

• agents() — turns an agent into an orchestrator that delegates to other registered agents. Injects a dedicated delegate_to_<agent> tool per sub-agent, auto-discovers descriptions, returns sub-agent interrupts/failures as tool results, and adds guard rails (maxDelegations, historyLength).
• artifacts() — gives the model read_artifact / write_artifact tools backed by session state, with an <artifacts> listing injected each turn. Pair with agents({ artifactStrategy: 'session' }) so an orchestrator can read artifacts produced by its sub-agents.

useChat adapter for Agents — @genkit-ai/vercel-ai (#5426)

... (truncated)

Commits

• f37effb chore: JS version bump
• dc67fba feat(js/ai/session-stores): add per-session pointer files for faster snapshot...
• df98c2e chore: JS version bump
• af9bb99 test(agents): added agent conformance spec and js harness (#5256)
• 510b447 feat(js): implemented defineAgent (#5251)
• dd1d2d2 refactor(js)!: remove Chat API and associated session methods (#5248)
• See full diff in compare view

Updates @genkit-ai/core from 1.38.0 to 1.39.0

Release notes

Sourced from @​genkit-ai/core's releases.

Genkit JS and CLI 1.39.0

⚠️ Breaking changes (beta)

• The beta Chat API has been removed and replaced by the new Agents API (#5248, #5251). The Chat class, ai.chat(...), and session.chat(...) are gone. Migrate to ai.defineAgent(...) and agent.chat() (see Agents below). All removed surface was beta.

---

This release introduces Agents, a first-class, multi-turn agent API for Genkit JS. Agents bundle a model/prompt, conversational state, tool loops, interrupts, persistence, streaming, and abort/resume into a single ergonomic, transport-agnostic surface that runs identically in-process on the server and over HTTP from the browser.

Highlights

defineAgent — the new Agents API (#5251)

Define a multi-turn agent in a single call, with three levels of control:

// Zero-config
const agent = ai.defineAgent({
  name: 'assistant',
  model: 'googleai/gemini-flash-latest',
  system: 'You are a helpful assistant.',
  tools: [searchTool],
});
// Reuse a registered .prompt (typed promptInput)
const agent = ai.definePromptAgent({ promptName: 'assistant', promptInput: { role: 'pirate' } });
// Full control via a custom turn handler
const agent = ai.defineCustomAgent({ name: 'custom' }, async (runner, input) => { /* ... */ });

Key capabilities:

• Stateful, multi-turn chats — chat() threads state, messages, snapshotId, and sessionId for you (send & stream).
• Typed custom state with Zod validation (stateSchema).
• Pluggable persistence via SessionStore (in-memory + file stores included); server-managed sessions resumable by sessionId.
• Streaming with live custom-state patches over the wire (JSON Patch).
• Interrupts & resume (restart / respond) for human-in-the-loop tools.
• Abort, detach (background turns) + heartbeats, and graceful failure that preserves the last-good state.
• clientTransform to redact/reshape state and stream chunks before they leave the server.
• Same API server or browser — remoteAgent(...) returns the same AgentAPI shape over HTTP.

Agents middleware: delegation & artifacts (#5252)

New @genkit-ai/middleware middlewares for building multi-agent, artifact-producing workflows:

• agents() — turns an agent into an orchestrator that delegates to other registered agents. Injects a dedicated delegate_to_<agent> tool per sub-agent, auto-discovers descriptions, returns sub-agent interrupts/failures as tool results, and adds guard rails (maxDelegations, historyLength).
• artifacts() — gives the model read_artifact / write_artifact tools backed by session state, with an <artifacts> listing injected each turn. Pair with agents({ artifactStrategy: 'session' }) so an orchestrator can read artifacts produced by its sub-agents.

useChat adapter for Agents — @genkit-ai/vercel-ai (#5426)

... (truncated)

Commits

• f37effb chore: JS version bump
• df98c2e chore: JS version bump
• 510b447 feat(js): implemented defineAgent (#5251)
• 379bcda feat(js): implement bidi actions and flows (#4288)
• See full diff in compare view

Updates @genkit-ai/firebase from 1.38.0 to 1.39.0

Release notes

Sourced from @​genkit-ai/firebase's releases.

Genkit JS and CLI 1.39.0

⚠️ Breaking changes (beta)

• The beta Chat API has been removed and replaced by the new Agents API (#5248, #5251). The Chat class, ai.chat(...), and session.chat(...) are gone. Migrate to ai.defineAgent(...) and agent.chat() (see Agents below). All removed surface was beta.

---

This release introduces Agents, a first-class, multi-turn agent API for Genkit JS. Agents bundle a model/prompt, conversational state, tool loops, interrupts, persistence, streaming, and abort/resume into a single ergonomic, transport-agnostic surface that runs identically in-process on the server and over HTTP from the browser.

Highlights

defineAgent — the new Agents API (#5251)

Define a multi-turn agent in a single call, with three levels of control:

// Zero-config
const agent = ai.defineAgent({
  name: 'assistant',
  model: 'googleai/gemini-flash-latest',
  system: 'You are a helpful assistant.',
  tools: [searchTool],
});
// Reuse a registered .prompt (typed promptInput)
const agent = ai.definePromptAgent({ promptName: 'assistant', promptInput: { role: 'pirate' } });
// Full control via a custom turn handler
const agent = ai.defineCustomAgent({ name: 'custom' }, async (runner, input) => { /* ... */ });

Key capabilities:

• Stateful, multi-turn chats — chat() threads state, messages, snapshotId, and sessionId for you (send & stream).
• Typed custom state with Zod validation (stateSchema).
• Pluggable persistence via SessionStore (in-memory + file stores included); server-managed sessions resumable by sessionId.
• Streaming with live custom-state patches over the wire (JSON Patch).
• Interrupts & resume (restart / respond) for human-in-the-loop tools.
• Abort, detach (background turns) + heartbeats, and graceful failure that preserves the last-good state.
• clientTransform to redact/reshape state and stream chunks before they leave the server.
• Same API server or browser — remoteAgent(...) returns the same AgentAPI shape over HTTP.

Agents middleware: delegation & artifacts (#5252)

New @genkit-ai/middleware middlewares for building multi-agent, artifact-producing workflows:

• agents() — turns an agent into an orchestrator that delegates to other registered agents. Injects a dedicated delegate_to_<agent> tool per sub-agent, auto-discovers descriptions, returns sub-agent interrupts/failures as tool results, and adds guard rails (maxDelegations, historyLength).
• artifacts() — gives the model read_artifact / write_artifact tools backed by session state, with an <artifacts> listing injected each turn. Pair with agents({ artifactStrategy: 'session' }) so an orchestrator can read artifacts produced by its sub-agents.

useChat adapter for Agents — @genkit-ai/vercel-ai (#5426)

... (truncated)

Commits

• f37effb chore: JS version bump
• df98c2e chore: JS version bump
• a7d3247 feat(js/plugins/google-cloud|firebase): implemented Firestore session store (...
• See full diff in compare view

Updates @genkit-ai/google-cloud from 1.38.0 to 1.39.0

Release notes

Sourced from @​genkit-ai/google-cloud's releases.

Genkit JS and CLI 1.39.0

⚠️ Breaking changes (beta)

• The beta Chat API has been removed and replaced by the new Agents API (#5248, #5251). The Chat class, ai.chat(...), and session.chat(...) are gone. Migrate to ai.defineAgent(...) and agent.chat() (see Agents below). All removed surface was beta.

---

This release introduces Agents, a first-class, multi-turn agent API for Genkit JS. Agents bundle a model/prompt, conversational state, tool loops, interrupts, persistence, streaming, and abort/resume into a single ergonomic, transport-agnostic surface that runs identically in-process on the server and over HTTP from the browser.

Highlights

defineAgent — the new Agents API (#5251)

Define a multi-turn agent in a single call, with three levels of control:

// Zero-config
const agent = ai.defineAgent({
  name: 'assistant',
  model: 'googleai/gemini-flash-latest',
  system: 'You are a helpful assistant.',
  tools: [searchTool],
});
// Reuse a registered .prompt (typed promptInput)
const agent = ai.definePromptAgent({ promptName: 'assistant', promptInput: { role: 'pirate' } });
// Full control via a custom turn handler
const agent = ai.defineCustomAgent({ name: 'custom' }, async (runner, input) => { /* ... */ });

Key capabilities:

• Stateful, multi-turn chats — chat() threads state, messages, snapshotId, and sessionId for you (send & stream).
• Typed custom state with Zod validation (stateSchema).
• Pluggable persistence via SessionStore (in-memory + file stores included); server-managed sessions resumable by sessionId.
• Streaming with live custom-state patches over the wire (JSON Patch).
• Interrupts & resume (restart / respond) for human-in-the-loop tools.
• Abort, detach (background turns) + heartbeats, and graceful failure that preserves the last-good state.
• clientTransform to redact/reshape state and stream chunks before they leave the server.
• Same API server or browser — remoteAgent(...) returns the same AgentAPI shape over HTTP.

Agents middleware: delegation & artifacts (#5252)

New @genkit-ai/middleware middlewares for building multi-agent, artifact-producing workflows:

• agents() — turns an agent into an orchestrator that delegates to other registered agents. Injects a dedicated delegate_to_<agent> tool per sub-agent, auto-discovers descriptions, returns sub-agent interrupts/failures as tool results, and adds guard rails (maxDelegations, historyLength).
• artifacts() — gives the model read_artifact / write_artifact tools backed by session state, with an <artifacts> listing injected each turn. Pair with agents({ artifactStrategy: 'session' }) so an orchestrator can read artifacts produced by its sub-agents.

useChat adapter for Agents — @genkit-ai/vercel-ai (#5426)

... (truncated)

Commits

• f37effb chore: JS version bump
• df98c2e chore: JS version bump
• a7d3247 feat(js/plugins/google-cloud|firebase): implemented Firestore session store (...
• dd1d2d2 refactor(js)!: remove Chat API and associated session methods (#5248)
• See full diff in compare view

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