Ship the agent as a core-less release jar, gate publishing on it; fix Windows tool-call test

[bernardladenthin]

Summary

• Agent release asset. llama-atmosphere-agent-<core version>-jar-with-dependencies.jar (~7 MB) is now attached to every GitHub release and the snapshot pre-release, with .sha256 and a GPG .asc. It is never deployed to Maven Central.

  • A new assembly profile in llama-atmosphere-agent/pom.xml (descriptor src/assembly/agent-jar.xml) builds it.
  • It leaves out the core and everything it brings (via useTransitiveFiltering), plus jspecify and slf4j-simple, because every core fat jar already carries them.
  • The manifest Class-Path lists the core fat jars, so java -jar works when the agent jar sits next to any of them.
  • The model-free agent job builds and uploads it. The attach jobs put it next to the core fat jars, where sign-fatjars.sh signs it.

• New job smoke-agent-linux (.github/smoke-agent-jar.sh) starts the real agent jar next to the real all-linux-x86-64 fat jar and checks:

  • bytecode is at most Java 21 (major 65);
  • started alone, the jar fails with NoClassDefFoundError for the core;
  • --help works;
  • a one-shot "2 + 2" answer contains a 4;
  • a read_file round prints a marker from --workspace.

  These run on the cached tool model with --ngl 0. The model-free agent job, the model-backed agent integration job and this smoke now gate both publish jobs.

• Fix: ToolCallingIntegrationTest#requiredToolCallIsParsedFromStreamingResponse. It failed on both Windows x86-64 jobs of run 36314602700 after the b11211 bump.

  • The streamed request produced 512 tokens without a tool call; the prompt ("Write an example") never asked for the tool.
  • The likely cause is the new tiled k-quant matmul (upstream #27851) taking a different ISA path on those runners and tipping greedy decoding. This is not reproduced; there is no Windows host here.
  • The prompt now asks for the call outright. Both assertions now include the streamed content, finish_reason and chunk count.

• Docs: README, agent README, CLAUDE.md and CHANGELOG. The workspace policy change is a companion PR in bernardladenthin/workspace.

Test plan

• Agent mvn -P assembly package builds the jar. Its contents contain no core classes, no Jackson 2, no SLF4J and no jspecify, and the manifest Main-Class and Class-Path are correct.
• java -jar next to a local core fat jar loads the core; alone it fails with NoClassDefFoundError. java -cp with both jars works.
• The smoke script's model-free steps (manifest, "jar alone fails", --help) pass locally. The model steps run only in CI because HuggingFace is blocked here.
• Core test-compile and spotbugs:check pass. spotless:apply was run.
• publish.yml parses; the new needs were checked.
• CI is green on this branch, including smoke-agent-linux and the two Windows Java test jobs.
• Docs / CHANGELOG updated

Related issues / PRs

Follow-up to #456 and publish run 36314602700.

🤖 Generated with Claude Code

https://claude.ai/code/session_01QSXAwbXqx9u5xsMArMvgT8

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Generated by Claude Code

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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