Add budget control guide for LangChain agents#93
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New guide covering per-run budget wrapping of AgentExecutor using the runcycles Python client. Complements the existing per-LLM-call callback handler doc with a pattern for whole-run reservations, tool-level checks, multi-tenant scoping, and graceful degradation via ALLOW_WITH_CAPS. https://claude.ai/code/session_01PzuaGmFdDW83EJxwt6kQua
1 USD = 100,000,000 microcents. The original amounts were off by orders of magnitude (e.g. 5_000_000 labeled as $50 when it's actually $0.05). Corrected all amounts and added inline dollar comments. https://claude.ai/code/session_01PzuaGmFdDW83EJxwt6kQua
- Remove DENY-after-success checks: per protocol spec (line 637), budget denial for dry_run=false comes as 409 BUDGET_EXCEEDED, not decision=DENY on a 200. Matches existing callback handler doc pattern. - Simplify tool-level check to just is_success - Degradation section now shows correct two-way branch (ALLOW vs ALLOW_WITH_CAPS) with error handling for 409 above - Remove unused CyclesMetrics import https://claude.ai/code/session_01PzuaGmFdDW83EJxwt6kQua
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Title: Add budget control guide for LangChain agents
Body:
Summary
AgentExecutorusing Cycles reservations (complementary to existing per-LLM-call callback handler doc)ALLOW_WITH_CAPSdecision=DENYon a 200 (per protocol spec line 637)Test plan
runcyclesclient API (field names, constructor signatures, response access patterns)https://claude.ai/code/session_01PzuaGmFdDW83EJxwt6kQua