Release v3.17.0

What's Changed

• HARN-11 I1: add the SDK agentLoop contract by @chelojimenez in #6788
• HARN-11 I2: dispatch client agent loops without switching MCP clients by @chelojimenez in #6789
• HARN-11 I3: derive harness capabilities and extension admission by @chelojimenez in #6790
• HARN-11 I4: deliver App state through harness turn prompts by @chelojimenez in #6791
• HARN-11 I5: preserve agent loops and tool policies in evals and swarms by @chelojimenez in #6792
• HARN-11 I6: carry client loops into local runs and account handling by @chelojimenez in #6793
• fix(desktop): start the embedded server once per launch by @weimar-torres-herrera in #6482
• fix(client): show the judge verdict by default on the case page by @ignaciojimenezr in #6748
• fix(client): show a loading state while a trial's stage chain loads by @ignaciojimenezr in #6782
• Conformance: shared result rows and in-order report uploads (1/3) by @ZeHuari in #6794
• Conformance: run history table and saved run page (2/3) by @ZeHuari in #6795
• Conformance: redesign the page (3/3) by @ZeHuari in #6746
• Stop advertising web_search to guests Ask MCPJam cannot serve by @nachocossio in #6784
• fix(server): retry busy Swarm steps without replaying tools by @prathmeshpatel in #6492
• fix(client): simplify responsive host comparison controls by @prathmeshpatel in #6780
• Bump @modelcontextprotocol/client and server to 2.3.1 by @olartgabo in #6807
• Tag a guest token refresh that never reached the local inspector as routine by @nachocossio in #6799
• Tag XAA authorization-server refusals as routine instead of paging on them by @nachocossio in #6798
• Calm the mobile first run: hide the launch card, quiet the first reconnect by @ZeHuari in #6810
• Playground: one client at a time on a phone, rails over the chat by @ZeHuari in #6805
• Add conference credit sign-in and redemption flow by @prathmeshpatel in #6726
• Onboarding: keep a side margin on the welcome card on phones by @ZeHuari in #6820
• Landing header: title and Setup Run share a line on phones by @ZeHuari in #6821
• fix(client): make OAuth and inspector panels usable on phones (BB-366, BB-367) by @ozboms in #6806
• fix(node): bump Node pins to 24.22.1 by @chelojimenez in #6827
• Pass the caught error to logger.error in the Swarm runner by @nachocossio in #6813
• Pass the caught error to logger.error in server routes and utils by @nachocossio in #6814
• chat: show reasoning from AI Gateway reasoning models on live surfaces (BB-111) by @ZeHuari in #6491
• PP-94: announce releases in Slack, mark webapp deploys in Axiom by @ozboms in #6531
• fix(oauth): tighten the debugger's automatic code exchange by @weimar-torres-herrera in #6801
• deps: bump next to 16.4.2 and dompurify to 3.4.17 by @ZeHuari in #6836
• v1 evals: run mcpjam// targets on the hosted rail by @ZeHuari in #6825
• Own-key policy: share allowing answers across turns of one session and project by @ZeHuari in #6823
• fix(client): restore system prompt editing (BB-376) by @prathmeshpatel in #6839
• docs: explain organization SSO setup invitation access by @chelojimenez in #6840
• BB-377: Isolate saved clients in Playground comparison by @prathmeshpatel in #6842
• fix(client): default Auto-connect to off by @prathmeshpatel in #6843
• fix: keep chat running when saved servers cannot connect by @chelojimenez in #6844
• feat(skills): align Skills over MCP with the stable ext-skills spec (wire level) by @olaservo in #6796
• feat(skills): bring the host side of Skills over MCP in line with the stable spec by @olaservo in #6797
• chore(release): version packages (3.17.0) by @chelojimenez in #6809
• sdk: mirror the 2026-10-25 host catalog probe sweep by @ignaciojimenezr in #6847
• Ask PRs whether they add an automated decision about users by @olartgabo in #6824
• feat(inspector): ask signed-in users to accept the Terms and Privacy Policy by @olartgabo in #6501
• oauth: keep looking past non-metadata AS discovery answers by @ZeHuari in #6830
• Playground: list a server's tools once on open, not twice by @ZeHuari in #6829
• fix(ci): repair release SDK smoke and contract checks by @chelojimenez in #6853

New Contributors

• @olaservo made their first contribution in #6796

Full Changelog: v3.16.2...v3.17.0