feat(openab-agent): native MCP client (ADR + implementation)#959

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brettchien wants to merge 54 commits into

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brettchien:feat/openab-agent-mcp

Commits on May 31, 2026

docs(adr): propose native MCP client for openab-agent

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docs(adr): unify MCP OAuth flows, add device-code preference and Fargate guardrails

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docs(adr): harden MCP OAuth — opt-in discovery + force-flush write contract

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feat(openab-agent/mcp): scaffold MCP module + mcpServers config loader

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style(openab-agent/mcp): apply cargo fmt to config.rs

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ci(openab-agent): exercise --features mcp in clippy + test

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feat(openab-agent/mcp): add 'mcp list' CLI subcommand

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fix(openab-agent/mcp): satisfy clippy::unnecessary_sort_by

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feat(openab-agent/mcp): redact secrets in 'mcp list' by default

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fix(openab-agent/mcp): emit --resolve warnings on stderr

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feat(openab-agent/mcp): add runtime state-machine scaffold
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fix(openab-agent/mcp): drop unused len() from McpRuntimeManager
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feat(openab-agent/mcp): wrap handles in Arc<RwLock>, stub async connect()
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fix(openab-agent/mcp): satisfy cargo fmt --check on runtime test
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fix(openab-agent/mcp): allow(dead_code) on connect() stub
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feat(openab-agent/mcp): real stdio dial via rmcp + double-lock connect

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fix(openab-agent/mcp): race guard for concurrent connect() on same server

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fix(openab-agent/mcp): satisfy cargo fmt --check on runtime.rs

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feat(openab-agent/mcp): meta-tool action enum + help/list_servers dispatch

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refactor(openab-agent/mcp): apply Mira Tick 15 review — zero-clone + LLM fallback hint

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fix(openab-agent/mcp): split wide assert!() to satisfy cargo fmt --check

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feat(openab-agent/mcp): list_tools action + Arc-cloned peer borrow

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feat(openab-agent/mcp): call action with lenient argument coercion

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fix(openab-agent/mcp): collapse let-params chain to satisfy cargo fmt

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feat(openab-agent/mcp): describe_tool + status actions complete phase 1 surface
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fix(openab-agent/mcp): break dispatch().await.unwrap() chain past chain_width
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fix(openab-agent/mcp): use is_none_or per clippy::unnecessary_map_or
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feat(openab-agent/mcp): wire mcp meta-tool into agent dispatch loop
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fix(openab-agent/mcp): silence unused_mut on feature-off build
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fix(openab-agent/acp): serialize env-var-touching tests with Mutex
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refactor(openab-agent/mcp): apply Mira's Phase 1 polish review
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feat(openab-agent/mcp): wire anonymous Streamable HTTP transport

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feat(openab-agent/auth): namespaced TokenStore + fsync (ADR §6.1)

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fix(openab-agent/auth): rustfmt break-after-= for long chained let

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feat(openab-agent/mcp): add OAuth provider catalog (ADR §6.2)

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feat(openab-agent/mcp): OAuthConfig §6.3 fields + discovery boot check

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fix(openab-agent/mcp): rustfmt struct-pattern nested-call multi-line

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feat(openab-agent/mcp): resolve custom OAuth providers (ADR §6.3)

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refactor(openab-agent/mcp): ResolvedProvider as enum {Builtin, Custom}

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fix(openab-agent/mcp): rustfmt per-line struct-pattern binders

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Commits on Jun 1, 2026

Commits on Jun 2, 2026

feat(openab-agent/mcp): F1 discovery slice — status idle + system-prompt catalogue

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