fix(mcp): classify OAuth challenges accurately - #347
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## 🤖 New release * `aether-auth`: 0.1.11 -> 0.1.12 * `aether-utils`: 0.2.11 -> 0.2.12 * `aether-llm-codegen`: 0.2.18 -> 0.2.19 * `aether-llm`: 0.7.26 -> 0.7.27 * `aether-mcp-utils`: 0.5.31 -> 0.5.32 * `aether-acp-utils`: 0.3.37 -> 0.3.38 * `aether-agent-core`: 0.6.31 -> 0.6.32 * `aether-lspd`: 0.1.31 -> 0.1.32 * `aether-project`: 0.5.32 -> 0.5.33 * `aether-telemetry`: 0.1.12 -> 0.1.13 * `aether-mcp-servers`: 0.4.38 -> 0.4.39 * `aether-tui`: 0.2.19 -> 0.2.20 * `aether-wisp`: 0.4.39 -> 0.4.40 * `aether-agent-cli`: 0.7.35 -> 0.7.36 * `aether-evals`: 0.2.24 -> 0.2.25 * `aether-schemas`: 0.1.19 -> 0.1.20 <details><summary><i><b>Changelog</b></i></summary><p> ## `aether-auth` <blockquote> ## [0.1.12](aether-auth-v0.1.11...aether-auth-v0.1.12) - 2026-08-19 ### Added - *(mcp)* support Client ID Metadata Documents ([#348](#348)) ### Other - Refactor/credential storage ([#345](#345)) </blockquote> ## `aether-utils` <blockquote> ## [0.2.12](aether-utils-v0.2.11...aether-utils-v0.2.12) - 2026-08-19 ### Added - Allow proxying tools within a MCP server ([#341](#341)) </blockquote> ## `aether-llm-codegen` <blockquote> ## [0.2.19](aether-llm-codegen-v0.2.18...aether-llm-codegen-v0.2.19) - 2026-08-19 ### Other - scheduled code-cleanup ([#331](#331)) </blockquote> ## `aether-llm` <blockquote> ## [0.7.27](aether-llm-v0.7.26...aether-llm-v0.7.27) - 2026-08-19 ### Added - *(mcp)* support Client ID Metadata Documents ([#348](#348)) ### Other - Update models ([#363](#363)) - Update models ([#359](#359)) - Update models ([#349](#349)) - Refactor/credential storage ([#345](#345)) - cleanup warnings - Update models ([#336](#336)) </blockquote> ## `aether-mcp-utils` <blockquote> ## [0.5.32](aether-mcp-utils-v0.5.31...aether-mcp-utils-v0.5.32) - 2026-08-19 ### Added - Deferred (proxied) tools can now be composed via the Bash tool ([#360](#360)) - *(mcp)* support Client ID Metadata Documents ([#348](#348)) - Allow proxying tools within a MCP server ([#341](#341)) - *(mcp-servers)* Bash and Sub-agents can now be run in foreground or background by main agent ([#340](#340)) - Support MCP tasks ([#339](#339)) ### Fixed - *(mcp)* classify OAuth challenges accurately ([#347](#347)) ### Other - *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0 ([#285](#285)) - remove nested Cargo lockfiles ([#352](#352)) - Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip requests (MRTR) ([#337](#337)) - Prefer connecting with new 7-28-2026 mcp protocol ([#332](#332)) </blockquote> ## `aether-acp-utils` <blockquote> ## [0.3.38](aether-acp-utils-v0.3.37...aether-acp-utils-v0.3.38) - 2026-08-19 ### Added - Deferred (proxied) tools can now be composed via the Bash tool ([#360](#360)) ### Other - *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0 ([#285](#285)) - Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip requests (MRTR) ([#337](#337)) </blockquote> ## `aether-agent-core` <blockquote> ## [0.6.32](aether-agent-core-v0.6.31...aether-agent-core-v0.6.32) - 2026-08-19 ### Added - Deferred (proxied) tools can now be composed via the Bash tool ([#360](#360)) - *(mcp)* support Client ID Metadata Documents ([#348](#348)) - Allow proxying tools within a MCP server ([#341](#341)) - *(mcp-servers)* Bash and Sub-agents can now be run in foreground or background by main agent ([#340](#340)) - Support MCP tasks ([#339](#339)) ### Fixed - *(mcp)* classify OAuth challenges accurately ([#347](#347)) ### Other - *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0 ([#285](#285)) - remove nested Cargo lockfiles ([#352](#352)) - Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip requests (MRTR) ([#337](#337)) - scheduled code-cleanup ([#329](#329)) </blockquote> ## `aether-lspd` <blockquote> ## [0.1.32](aether-lspd-v0.1.31...aether-lspd-v0.1.32) - 2026-08-19 ### Other - scheduled code-cleanup ([#328](#328)) </blockquote> ## `aether-project` <blockquote> ## [0.5.33](aether-project-v0.5.32...aether-project-v0.5.33) - 2026-08-19 ### Added - Deferred (proxied) tools can now be composed via the Bash tool ([#360](#360)) ### Other - scheduled code-cleanup ([#328](#328)) </blockquote> ## `aether-telemetry` <blockquote> ## [0.1.13](aether-telemetry-v0.1.12...aether-telemetry-v0.1.13) - 2026-08-19 ### Other - *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0 ([#285](#285)) - Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip requests (MRTR) ([#337](#337)) - scheduled code-cleanup ([#329](#329)) </blockquote> ## `aether-mcp-servers` <blockquote> ## [0.4.39](aether-mcp-servers-v0.4.38...aether-mcp-servers-v0.4.39) - 2026-08-19 ### Added - Deferred (proxied) tools can now be composed via the Bash tool ([#360](#360)) - *(mcp-servers)* Bash and Sub-agents can now be run in foreground or background by main agent ([#340](#340)) - Support MCP tasks ([#339](#339)) ### Other - scheduled code-cleanup ([#331](#331)) - Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip requests (MRTR) ([#337](#337)) - scheduled code-cleanup ([#328](#328)) - release ([#325](#325)) </blockquote> ## `aether-tui` <blockquote> ## [0.2.20](aether-tui-v0.2.19...aether-tui-v0.2.20) - 2026-08-19 ### Other - scheduled code-cleanup ([#331](#331)) </blockquote> ## `aether-wisp` <blockquote> ## [0.4.40](aether-wisp-v0.4.39...aether-wisp-v0.4.40) - 2026-08-19 ### Added - Deferred (proxied) tools can now be composed via the Bash tool ([#360](#360)) - Support MCP tasks ([#339](#339)) ### Other - *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0 ([#285](#285)) - Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip requests (MRTR) ([#337](#337)) </blockquote> ## `aether-agent-cli` <blockquote> ## [0.7.36](aether-agent-cli-v0.7.35...aether-agent-cli-v0.7.36) - 2026-08-19 ### Added - Deferred (proxied) tools can now be composed via the Bash tool ([#360](#360)) - Allow proxying tools within a MCP server ([#341](#341)) - *(mcp-servers)* Bash and Sub-agents can now be run in foreground or background by main agent ([#340](#340)) - Support MCP tasks ([#339](#339)) ### Other - *(deps)* bump agent-client-protocol from 0.14.0 to 2.0.0 ([#285](#285)) - Refactor/credential storage ([#345](#345)) - Upgrade to rmcp 3.1.1 and MCP tool calls now use multi round trip requests (MRTR) ([#337](#337)) - scheduled code-cleanup ([#329](#329)) - release ([#325](#325)) </blockquote> ## `aether-evals` <blockquote> ## [0.2.25](aether-evals-v0.2.24...aether-evals-v0.2.25) - 2026-08-19 ### Other - scheduled code-cleanup ([#329](#329)) </blockquote> ## `aether-schemas` <blockquote> ## [0.1.20](aether-schemas-v0.1.19...aether-schemas-v0.1.20) - 2026-08-19 ### Other - update Cargo.lock dependencies </blockquote> </p></details> --- This PR was generated with [release-plz](https://github.com/release-plz/release-plz/). Co-authored-by: contextbridge-pr-automation[bot] <259134118+contextbridge-pr-automation[bot]@users.noreply.github.com>
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Summary
Previously, any HTTP MCP connection failure was classified as
NeedsOAuthwhenever an OAuth handler was available.This made ordinary transport failures appear actionable through authentication. The connection now preserves the rmcp service error long enough to inspect its authorization metadata before mapping it into Aether's connection error.