first class langraph.js runtime

[breardon2011]

Adds langgraph as a self-hosting OpenComputer agent runtime. A LangGraph.js
graph runs as a Workers-for-Platforms Durable-Object tenant Worker — the same
hosting plane as flue (design 013), reused verbatim.

What's here

• oc agent init --runtime langgraph — scaffolds a graph project, not a prompt.
• @opencomputer/langgraph (sdks/langgraph) — the tenant runtime: one DO per
  session implementing the agent-Worker admit/tail contract, a durable
  DurableObjectSaver checkpointer, and ocModel gateway wiring. Graph-agnostic.
• langgraphbuild + deployLangGraph — client-side wrangler bundle → R2 →
  byte-free deployment (langgraph_* fields).

Validation
Tenant contract proven off-prod: a harness replays the exact dispatch admit +
tailer long-poll against wrangler dev — full message-started → message-delta → message-completed → submission-settled sequence, durable memory across turns,
per-session isolation. Server-side support: diggerhq/agent-sessions#.

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	npm/​@​langchain/​langgraph@​1.4.8
	npm/​@​langchain/​anthropic@​1.5.1
	npm/​@​langchain/​core@​1.2.3

View full report

[socket-security]

Warning

Review the following alerts detected in dependencies.

According to your organization's Security Policy, it is recommended to resolve "Warn" alerts. Learn more about Socket for GitHub.

Action	Severity	Alert  (click "▶" to expand/collapse)
Warn		Obfuscated code: npm js-tiktoken is 90.0% likely obfuscated Confidence: 0.90 Location: Package overview From: sdks/langgraph/package-lock.json → npm/@langchain/core@1.2.3 → npm/js-tiktoken@1.0.21 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/js-tiktoken@1.0.21. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.
Warn		Obfuscated code: npm js-tiktoken is 90.0% likely obfuscated Confidence: 0.90 Location: Package overview From: sdks/langgraph/package-lock.json → npm/@langchain/core@1.2.3 → npm/js-tiktoken@1.0.21 ℹ Read more on: This package | This alert | What is obfuscated code? Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev. Suggestion: Packages should not obfuscate their code. Consider not using packages with obfuscated code. Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/js-tiktoken@1.0.21. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

View full report