SwiftAgent 1.0.0-rc.3

SwiftAgent 1.0.0-rc.3

Release type: prerelease candidate

Release scope: focused RC2 compatibility and execution-reporting hotfix

SwiftAgent 1.0.0-rc.3 fixes Anthropic model discovery for the current Models
API capability metadata shape. It is an additive bugfix prerelease and does not
change the AgentCore execution contract.

RC2 to RC3

• Decode Anthropic effort capability levels and thinking.types when the API
  returns object maps instead of string arrays.
• Preserve the legacy string-array catalog fixtures used by RC2.
• Keep supported, unsupported, and unknown metadata distinct. An object-map
  entry is accepted only when its nested value explicitly says
  supported: true; missing, null, malformed, or incomplete metadata is not
  promoted to support.
• Preserve open Anthropic effort raw values when they use the existing
  output_config.effort wire parameter. Unknown thinking modes remain
  discoverable but require an adapter upgrade until the encoder understands
  them.
• Keep unknown catalog capability keys out of the current capability model
  without invalidating the complete model page.

Execution reporting and Host integration

• Preserve an observed mutation Receipt when the later Provider response is
  malformed or fails, while keeping the Runtime termination failed.
• Validate the Journal-backed recovery example with a new Session/Journal and
  new tool call ID. A settled replay returns the original operation result,
  does not re-enter the executor, and does not change the file or write count.
• Keep executorEntered unknown when the public event stream only proves a
  tool result or settled replay; toolCompleted and Receipt observations are
  not executor-entry evidence.
• Bind example reports to the actual AgentRun.sessionID, reject event bodies
  before the expected runStarted identity is bound, and diagnose mismatched
  lifecycle sources.
• Keep the AppleChatApp and HeadlessExecutionHost consumers in example/support
  packages. They do not add a new root SDK product or change AgentCore's
  execution, cancellation, Journal, Receipt, or authorization contracts.

Compatibility

• No new Provider, routing architecture, tools, Memory feature, Apple PCC
  feature, or AgentCore execution behavior is included.
• Existing Agent, Session, Run, Journal, Evidence, Receipt, mutation safety,
  and continuation contracts remain unchanged.
• 1.0.0-rc.1 and 1.0.0-rc.2 are immutable anchors. RC3 is a new annotated
  tag based on the final verified main commit.

Verification boundary

The release is fixture-first for the Anthropic catalog contract. It does not
claim live model-generation qualification, and creating RC3 does not require a
live generation request or an Anthropic API key.