# 5.11 — Context budget (GREEN)

Phase: 5 — Chat + Rate Limiter (Surface D)
Stage: GREEN

Depends on: [5.5](5.5-context-test.md)

- [ ] Context budget (16384 total): system prompt ~300, snapshot digest capped at 2000, `max_tokens` 1500, ~12500 for history, truncated oldest-first

## Verify

```bash
go test ./... -run TestContext -v
```