* Migrate MCP client to SDK v2 protocol models

* Refactor MCP runtime around SDK high-level client

* Update contributor and structured output guidance

* safety fun

* feat!: add built-in subagents and remove Smart agents

* docs: clarify the 0.10 subagent migration

* feat: enable subagents from instruction directive

* feat: finalize 0.10 subagent runtime and tooling

* fix: strip included subagent directives after rendering

* test: normalize styled CLI validation output

* fix: disable Rich number highlighting in turn usage

* fix: preserve runtime capabilities in isolated clones

* fix: tighten usage summary layout

* fix: align usage table numeric columns

* fix: compact large usage counts

* fix: reject inert subagent card settings

* feat: add opt-in harness tools

* fix: return harness command details

* feat: deprecate smart agent cards

* merge main

* fix(ui): place final response banner after reasoning

* style(ui): format attachment help text

* test(batch): patch parquet dependencies deterministically

* style(ui): emphasize startup command shortcuts

* feat(mcp): migrate client runtime to v2 rc1

* subagent display enhancements

* subagent transcripts

* updated tests

* feat(mcp): adopt stable v2 SDK

* chore(mcp): retire state transfer quickstart

* feat(mcp): allow forcing protocol era

* docs(mcp): plan configuration and runtime refactor

* fix(mcp): recognize stable session termination

* fix(mcp): bound operation replay recovery

* fix(mcp): await runtime teardown before replacement

* refactor(mcp): emit recovery progress events

* refactor(mcp): establish persisted server schema

* feat(mcp): add round-trip config migration

* docs(mcp): migrate examples to server map schema

* refactor(mcp): unify SDK client construction

* refactor(mcp): make runtime attachment transactional

* feat(mcp): separate configured attach from ad-hoc connect

* refactor(mcp): normalize startup target attachment

* feat(cards): add named MCP declarations

* fix(ui): sanitize surrogate console output

* refactor(mcp): scope AgentCard server declarations

* feat(mcp): restore public HTTP transport diagnostics

* refactor(mcp): normalize product failures

* docs(mcp): clarify migration compatibility

* docs(mcp): refresh stable transport diagnostics cast

* fix(mcp): isolate connection supervisor scope

* fix(cli): defer card MCP overlay until startup

* docs(mcp): mark refactor plan complete

* test(acp): accept stable progress semantics

* test(agents): complete resolved model stub

* docs(examples): refresh elicitation quickstart

* fix(examples): modernize MCP transports

* fix(ui): trim redundant MCP diagnostics rows

* fix(mcp): report initialize only for legacy

* feat(mcp): show modern listen diagnostics

* fix(mcp): count request progress notifications

* fix(ui): simplify modern MCP status

* fix(ui): clarify MCP channel semantics

* chore(deps): upgrade google-genai to 2.15.0

* fix(mcp): stop retrying subscription limits

* fix(security): harden remote content boundaries

* ux updates, migrate

* feat: refine model startup and subagent progress

* feat(subagents): add parent-only directives and compact progress

* chore: format code and harden CLI test

* feat: modernize MCP compatibility and tool displays

* fix: clear CI compatibility failures

* refactor: simplify agent tool and runtime flows

* feat: canonicalize slash command surface

* chore: update type and duplication gates

* feat: add durable subagent aliases and controls

* refactor: modernize MCP app integrations

* docs prep, elicitations

* recordings

* docs refresh
d#	modified:   docs/social_cards/contact-sheet.html

* socials

* test updates
t#

* chore: satisfy formatting gate

* fix(subagents): accept inline directive closers

* feat(subagents): show cache effectiveness in monitor

* refactor(subagents): compact monitor columns

* fix(subagents): accept alternate HTML comment close

* feat(auth): redesign credential CLI

* fix(auth): preserve explicit resource keys

* refactor(subagents): group turn and context details

* mcp fixes

* mcp/tidyup

* fix(subagents): align model metadata and detail

* fix(progress): prioritize process monitoring details

* fix(usage): simplify minimum cache ttl display

* feat(mcp): update skills extension for SEP-2640

* fix(ui): highlight uv-run Python heredocs

* fix(ui): highlight pnpm tsx heredocs

* docs(mcp): refresh skills over MCP recording

* fix(mcp): tighten v2 migration boundaries

* docs(mcp): qualify skills integrity guarantees

* docs(guides): add subagents overview

* feat(harness): restore model-managed MCP and skills

* tweak guide

* fix(mcp): discover capabilities in forced-modern mode

* docs(mcp): refresh inspect transport casts

* feat(ui): improve tool argument rendering

* refactor(google): drop partial argument reconstruction

* model picker sorting

* tui guidance

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Co-authored-by: evalstate <evalstate@users.noreply.github.com>