diff --git a/README.md b/README.md
index e444f99..43005e8 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,12 @@ deprecated completely; the conversational surface becomes a configurable Slack t
 > locally (`SH_MCP_ENV=local`); `SH_MCP_ENV=aws` is wired but not yet deployed.
 > The authoritative spec is [`docs/design.md`](docs/design.md).
 
+## Documentation
+
+The canonical map of Sea Haven's AWS infrastructure lives in Confluence. This project's `sh-mcp-auth`, `sh-mcp-ops`, and `sh-mcp-finance` stacks are represented there as Mermaid subgraphs.
+
+- **[AWS Architecture Map](https://seahaven.atlassian.net/wiki/spaces/IT/pages/1540098)** (Confluence, IT space, page 1540098)
+
 ## Auth substrate (Phase 2a — `infra/` + `auth/`)
 
 `infra/` is the root CDK app; `cdk synth` builds the **`sh-mcp-auth`** stack: