GitHub Copilot SDK Files

What's Changed

• java: enforce non-blank @CopilotToolParam description at compile time by @rinceyuan in https://github.com/github/copilot-sdk/pull/1980
• java: add schema attribute to @CopilotToolParam and lambda for custom type schema override by @edburns in https://github.com/github/copilot-sdk/pull/2069
• docs: fix non-compiling Rust session-limits example by @examon in https://github.com/github/copilot-sdk/pull/2082
• Fix the plan-mode exit action type name in the fleet mode guide by @examon in https://github.com/github/copilot-sdk/pull/2090
• Fix the Node.js tool-definition example in the Microsoft Agent Framework guide by @examon in https://github.com/github/copilot-sdk/pull/2088
• Fix Go telemetry examples: NewClient takes *ClientOptions and returns one value by @examon in https://github.com/github/copilot-sdk/pull/2086
• Fix active .NET and Python CI failures by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2093
• docs: correct the delta field the MAF streaming example reads by @examon in https://github.com/github/copilot-sdk/pull/2105
• Fix the Python list_sessions docstring example to use session_id by @examon in https://github.com/github/copilot-sdk/pull/2099
• docs: rename Azure AI Foundry to Microsoft Foundry in BYOK guide by @scottaddie in https://github.com/github/copilot-sdk/pull/2097
• Bump fast-uri from 3.1.2 to 3.1.4 in /test/harness by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2094
• Bump brace-expansion from 1.1.14 to 1.1.16 in /nodejs by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2095
• Bump hono from 4.12.23 to 4.12.32 in /test/harness by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2096
• docs: add missing assistant.usage event fields to streaming-events reference by @rinceyuan in https://github.com/github/copilot-sdk/pull/2074
• docs: document complete sub-agent event data fields by @rinceyuan in https://github.com/github/copilot-sdk/pull/2072
• Refresh agentic workflows to gh-aw v0.83.1; issue-intent on issue-triage by @alondahari in https://github.com/github/copilot-sdk/pull/2063
• Add StartupTimings per-phase breakdown to Client::start by @jmoseley in https://github.com/github/copilot-sdk/pull/2066
• docs: fix inaccurate SDK/runtime claims found in docs audit by @patniko in https://github.com/github/copilot-sdk/pull/2064
• Fix flaky .NET ask-user E2E tests by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2107
• sdk: Expose AgentStop session hook across languages by @belaltaher8 in https://github.com/github/copilot-sdk/pull/2054
• ci: add stable required SDK checks by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2108
• Fix flaky .NET session resume E2E test by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2109
• dotnet: release oversized JSON-RPC receive buffers by @adirh3 in https://github.com/github/copilot-sdk/pull/2047
• Version-independent SDK test and codegen fixes split from the 1.0.76-0 bump by @stephentoub in https://github.com/github/copilot-sdk/pull/2110
• docs: add server-to-server token guide by @patniko in https://github.com/github/copilot-sdk/pull/2005
• Update @github/copilot to 1.0.76-5 by @github-actions[bot] in https://github.com/github/copilot-sdk/pull/2140
• docs: correct the Python and Go event data model tip by @examon in https://github.com/github/copilot-sdk/pull/2160
• fix(python): select the current platform's CLI package in the E2E harness by @nytron88 in https://github.com/github/copilot-sdk/pull/2117
• docs: fix non-compiling Rust external-transport example by @examon in https://github.com/github/copilot-sdk/pull/2142
• Rebrand Azure AI Foundry references to Microsoft Foundry by @scottaddie in https://github.com/github/copilot-sdk/pull/2126
• Fix .NET in-process E2E transport coverage by @roji in https://github.com/github/copilot-sdk/pull/1986
• Document MCP tool filter naming across SDKs by @syedkazmi14 in https://github.com/github/copilot-sdk/pull/2101
• docs: fix EnableConfigDiscovery summary to accurately describe agent discovery behavior by @smz202000 in https://github.com/github/copilot-sdk/pull/2019
• build(deps): bump the java-maven-deps group across 1 directory with 6 updates by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2119
• Bump com.fasterxml.jackson.core:jackson-databind from 2.22.0 to 2.22.1 in /java by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2017
• Add the Agent Factories authoring surface by @MRayermannMSFT in https://github.com/github/copilot-sdk/pull/2114
• Fix CAPI reasoning E2E fixtures by @ellismg in https://github.com/github/copilot-sdk/pull/2181
• docs: correct the remote sessions client option name by @examon in https://github.com/github/copilot-sdk/pull/2179
• docs: correct the ephemeral labels on four persisted session events by @examon in https://github.com/github/copilot-sdk/pull/2172
• docs: document EnableSessionStore and one-shot session guidance by @syf2211 in https://github.com/github/copilot-sdk/pull/1822
• python: decode boolean-discriminated unions by @examon in https://github.com/github/copilot-sdk/pull/2123
• test(java): re-enable ModeHandlers exit_plan_mode E2E assertions by @arimu1 in https://github.com/github/copilot-sdk/pull/2032
• Add usage and billing metrics docs page by @andyfeller in https://github.com/github/copilot-sdk/pull/1720
• forward CustomAgentsLocalOnly in session.create and session.resume by @syf2211 in https://github.com/github/copilot-sdk/pull/1899
• Fix Python codegen synthetic permission approval names by @abhinavgautam01 in https://github.com/github/copilot-sdk/pull/1652
• fix(python): forward binary tool results in HandlePendingToolCall RPC by @syf2211 in https://github.com/github/copilot-sdk/pull/1821
• [Codegen] Honor internal flag on session event types in Node codegen by @MRayermannMSFT in https://github.com/github/copilot-sdk/pull/2177
• Expose managed approval requirement on permission requests by @joshspicer in https://github.com/github/copilot-sdk/pull/2080
• sdk: Expose githubMcpToolConfig across languages by @connor4312 in https://github.com/github/copilot-sdk/pull/2112
• Deflake background task removal E2E tests by @stephentoub in https://github.com/github/copilot-sdk/pull/2190
• Update @github/copilot to 1.0.77 by @github-actions[bot] in https://github.com/github/copilot-sdk/pull/2183
• Update @github/copilot to 1.0.78-2 by @github-actions[bot] in https://github.com/github/copilot-sdk/pull/2193
• fix(python): serialize Pydantic models with mode='json' in tool results by @rinceyuan in https://github.com/github/copilot-sdk/pull/2225
• all SDKs: add EnableExperimentalMode to session create/resume wire with mode-aware defaults by @jmoseley in https://github.com/github/copilot-sdk/pull/1600
• build(deps): bump brace-expansion from 5.0.6 to 5.0.9 in /scripts/docs-validation in the npm_and_yarn group across 1 directory by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2191
• docs: remove the nonexistent toolName field from tool.execution_complete by @examon in https://github.com/github/copilot-sdk/pull/2212
• feat: add support for additional directories in session configuration by @DonJayamanne in https://github.com/github/copilot-sdk/pull/2180
• docs: fix the Node.js inbound trace-context example to use a real tool-registration API by @examon in https://github.com/github/copilot-sdk/pull/2223
• Update @github/copilot to 1.0.78 by @github-actions[bot] in https://github.com/github/copilot-sdk/pull/2239
• dotnet: update README attachment examples to current API (fixes [#2196]) by @HindzStark in https://github.com/github/copilot-sdk/pull/2208
• Support reasoningEffort: max by @Dharshika-11 in https://github.com/github/copilot-sdk/pull/2228
• Stop sendAndWait from emitting an unhandled rejection by @thejesh23 in https://github.com/github/copilot-sdk/pull/2206
• docs: clarify working directory defaults across SDKs by @xianjianlf2 in https://github.com/github/copilot-sdk/pull/2201
• Speed up Rust E2E tests with shared clients by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2250
• build(deps-dev): bump ip-address from 10.2.0 to 10.4.0 in /test/harness by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2245
• build(deps-dev): bump the npm_and_yarn group across 1 directory with 2 updates by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2244
• build(deps-dev): bump postcss from 8.5.15 to 8.5.25 in /nodejs by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2243
• build(deps-dev): bump fast-uri from 3.1.4 to 3.1.5 in /test/harness by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2242
• docs: move SDK development guidance to local READMEs by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2253
• build(deps-dev): bump postcss from 8.5.15 to 8.5.25 in /test/harness by @dependabot[bot] in https://github.com/github/copilot-sdk/pull/2252
• docs: replace removed session.idle.backgroundTasks field with the current aborted field by @examon in https://github.com/github/copilot-sdk/pull/2232
• Parallelize Python and Windows .NET CI tests by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2251
• Fix active Node and Rust replay E2E flakes by @roji in https://github.com/github/copilot-sdk/pull/2186
• Add userPromptTransformed hook to all SDKs by @SteveSandersonMS in https://github.com/github/copilot-sdk/pull/2254
• fix: Java README version stuck at 1.0.5-01; release sed regex can't match numeric qualifiers by @rinceyuan in https://github.com/github/copilot-sdk/pull/2226
• docs: update Go and Rust API reference links by @scottaddie in https://github.com/github/copilot-sdk/pull/2266
• docs: add citations guide by @patniko in https://github.com/github/copilot-sdk/pull/2267
• sdk: Expose disabled MCP servers across languages by @connor4312 in https://github.com/github/copilot-sdk/pull/2260

New Contributors

• @alondahari made their first contribution in https://github.com/github/copilot-sdk/pull/2063
• @adirh3 made their first contribution in https://github.com/github/copilot-sdk/pull/2047
• @nytron88 made their first contribution in https://github.com/github/copilot-sdk/pull/2117
• @syedkazmi14 made their first contribution in https://github.com/github/copilot-sdk/pull/2101
• @smz202000 made their first contribution in https://github.com/github/copilot-sdk/pull/2019
• @arimu1 made their first contribution in https://github.com/github/copilot-sdk/pull/2032
• @abhinavgautam01 made their first contribution in https://github.com/github/copilot-sdk/pull/1652
• @joshspicer made their first contribution in https://github.com/github/copilot-sdk/pull/2080
• @connor4312 made their first contribution in https://github.com/github/copilot-sdk/pull/2112
• @DonJayamanne made their first contribution in https://github.com/github/copilot-sdk/pull/2180
• @HindzStark made their first contribution in https://github.com/github/copilot-sdk/pull/2208
• @Dharshika-11 made their first contribution in https://github.com/github/copilot-sdk/pull/2228
• @thejesh23 made their first contribution in https://github.com/github/copilot-sdk/pull/2206
• @xianjianlf2 made their first contribution in https://github.com/github/copilot-sdk/pull/2201

Full Changelog: https://github.com/github/copilot-sdk/compare/v1.0.8...v1.0.9