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The Wire · Showcase

CLAUDE SDK SHIPS AGENT-MEMORY BETA, PLUGIN VALIDATION SWEEPS OFFICIAL REGISTRY

By RepoJournal · Filed · About Anthropic

The C# SDK added agent-memory-2026-07-22 beta support in back-to-back releases, while automated validation is pushing plugin updates across the official and knowledge-work registries.

The anthropic-sdk-csharp landed version 12.35.0 [1] with the new agent-memory beta header, followed immediately by a 12.35.1 patch [2] for documentation clarifications. This is the feature release you've been waiting for if you're building stateful agent workflows in .NET. Across the plugin ecosystem, a coordinated validation sweep triggered SHA bumps for carta-cap-table, carta-investors, migration-to-aws, aws-transform, and nvidia-skills in claude-plugins-official [3][4][5][6][7], with the same updates propagating to knowledge-work-plugins [8][9]. All bumps passed `claude plugin validate` before PR creation, so these are clean merges waiting for review. The claude-code-action jumped to v1.0.163 [10] with bumps to Claude Code 2.1.199 and Agent SDK 0.3.199 [11], and that change synced downstream to claude-code-base-action [12].

Action items

References

  1. [1] Anthropic: v12.35.0 ↗ anthropics/anthropic-sdk-csharp
  2. [2] Anthropic: v12.35.1 ↗ anthropics/anthropic-sdk-csharp
  3. [3] bump(carta-cap-table): 0f7d5f3f → 74dcec2b ↗ anthropics/claude-plugins-official
  4. [4] bump(carta-investors): 0f7d5f3f → 74dcec2b ↗ anthropics/claude-plugins-official
  5. [5] bump(migration-to-aws): 5c85895e → b6843251 ↗ anthropics/claude-plugins-official
  6. [6] bump(aws-transform): 283d86f5 → 23dc619d ↗ anthropics/claude-plugins-official
  7. [7] bump(nvidia-skills): 55f8f7a5 → 63c02e12 ↗ anthropics/claude-plugins-official
  8. [8] bump(carta-cap-table): 0f7d5f3f → 74dcec2b ↗ anthropics/knowledge-work-plugins
  9. [9] bump(carta-investors): 0f7d5f3f → 74dcec2b ↗ anthropics/knowledge-work-plugins
  10. [10] v1.0.163 ↗ anthropics/claude-code-action
  11. [11] chore: bump Claude Code to 2.1.199 and Agent SDK to 0.3.199 anthropics/claude-code-action
  12. [12] Sync from claude-code-action base-action@769e3bd anthropics/claude-code-base-action

FAQ

What changed in Anthropic on July 3, 2026?
The C# SDK added agent-memory-2026-07-22 beta support in back-to-back releases, while automated validation is pushing plugin updates across the official and knowledge-work registries.
What should Anthropic teams do about it?
Review and merge the five claude-plugins-official SHA bump PRs - all validation passed • Review and merge the five knowledge-work-plugins SHA bump PRs - validation confirmed • Upgrade to C# SDK 12.35.0+ if building agent-memory features
Which Anthropic repositories shipped on July 3, 2026?
anthropics/anthropic-sdk-csharp, anthropics/claude-plugins-official, anthropics/knowledge-work-plugins, anthropics/claude-code-action, anthropics/claude-code-base-action

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