Separate agent tool calls (archival_memory_insert, archival_memory_search)
from SDK endpoints (client.agents.passages.*) throughout the archival memory
documentation to reduce confusion between what agents do autonomously vs what
developers do via the SDK.
Changes:
- Remove language tabs from agent tool examples (not language-specific)
- Add Info callout explaining the two interaction levels
- Add SDK search example for symmetry with agent search example
- Reorganize best practices into "Agent" and "Developer (SDK)" sections
- Remove comparison table
- Add troubleshooting section with common issues
- Update pagination references to use cursor-based approach
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