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Sweep 09 Oct 2026 · 17:27Z Build v2.1.296 517 read Stable v2.1.287 Latest v2.1.296 Next v2.1.296 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 9 Oct 2026
One change · api

sessions changedmanaged-agents/sessions

Nearest release: v2.1.296, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+9added
Lines−9removed
From line 490 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits8to this page, all time

The whole hunk

from line 490, old and new numbered
/
lines
from line 490
490490 "agent": {
491491 "type": "agent_with_overrides",
492492 "id": "$AGENT_ID",
493 "model": {"id": "claude-sonnet-5"},
493 "model": {"id": "claude-sonnet-5-5"},
494494 "system": null
495495 },
496496 "environment_id": "$ENVIRONMENT_ID"
from line 506
506506 type: agent_with_overrides
507507 id: $AGENT_ID
508508 model:
509 id: claude-sonnet-5
509 id: claude-sonnet-5-5
510510 system: null
511511 environment_id: $ENVIRONMENT_ID
512512 YAML
from line 517
517517 agent={
518518 "type": "agent_with_overrides",
519519 "id": agent.id,
520 "model": {"id": "claude-sonnet-5"},
520 "model": {"id": "claude-sonnet-5-5"},
521521 "system": None, # clear the agent's system prompt for this session
522522 },
523523 environment_id=environment.id,
from line 532
532532 agent: {
533533 type: "agent_with_overrides",
534534 id: agent.id,
535 model: { id: "claude-sonnet-5" },
535 model: { id: "claude-sonnet-5-5" },
536536 system: null // clear the agent's system prompt for this session
537537 },
538538 environment_id: environment.id
from line 551
551551 ID = agent.ID,
552552 Model = new BetaManagedAgentsModelConfigParams
553553 {
554 ID = BetaManagedAgentsModel.ClaudeSonnet5,
554 ID = BetaManagedAgentsModel.ClaudeSonnet5_5,
555555 },
556556 System = null, // clear the agent's system prompt for this session
557557 },
from line 569
569569 Type: anthropic.BetaManagedAgentsAgentWithOverridesParamsTypeAgentWithOverrides,
570570 ID: agent.ID,
571571 Model: anthropic.BetaManagedAgentsModelConfigParams{
572 ID: anthropic.BetaManagedAgentsModelClaudeSonnet5,
572 ID: anthropic.BetaManagedAgentsModelClaudeSonnet5_5,
573573 },
574574 // Clear the agent's system prompt for this session.
575575 System: param.Null[string](),
from line 591
591591 .type(BetaManagedAgentsAgentWithOverridesParams.Type.AGENT_WITH_OVERRIDES)
592592 .id(agent.id())
593593 .model(BetaManagedAgentsModelConfigParams.builder()
594 .id(BetaManagedAgentsModel.CLAUDE_SONNET_5)
594 .id(BetaManagedAgentsModel.CLAUDE_SONNET_5_5)
595595 .build())
596596 .system((String) null) // clear the agent's system prompt for this session
597597 .build())
from line 606
606606 $overrides = BetaManagedAgentsAgentWithOverridesParams::with(
607607 id: $agent->id,
608608 type: 'agent_with_overrides',
609 model: ['id' => 'claude-sonnet-5'],
609 model: ['id' => 'claude-sonnet-5-5'],
610610 );
611611 // Clear the system prompt for this session. Array access is load-bearing here:
612612 // create() strips nulls from raw arrays and ::with() treats null args as omitted.
from line 628
628628 agent: Anthropic::Beta::BetaManagedAgentsAgentWithOverridesParams.new(
629629 type: :agent_with_overrides,
630630 id: agent.id,
631 model: {id: "claude-sonnet-5"},
631 model: {id: "claude-sonnet-5-5"},
632632 system_: nil
633633 ),
634634 environment_id: environment.id
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