Fix agent-facing papercuts in the MCP tool surface

.hoplite/settings.json

@@ -0,0 +1,26 @@
+{
+	"version": 1,
+	"ports": {
+		"preview": 3000,
+		"additional": {}
+	},
+	"scripts": {
+		"setup": {
+			"enabled": true,
+			"command": "mise install rust@stable && mise use -g rust@stable"
+		},
+		"run": {
+			"enabled": true,
+			"command": null
+		},
+		"archive": {
+			"enabled": true,
+			"command": null
+		},
+		"check": {
+			"enabled": true,
+			"command": null
+		}
+	},
+	"mcpServers": []
+}

README.md

@@ -181,7 +181,7 @@ cargo build --release
 ./target/release/cloud-tools            # MCP server on stdio
 ```
 
-As an MCP server it plugs into any MCP-capable agent. The agent calls the thirteen tools above directly and reasons over the results.
+As an MCP server it plugs into any MCP-capable agent. The agent calls the tools above directly and reasons over the results.
 
 To embed it instead, depend on the library and turn the binary features off:
 
@@ -226,7 +226,7 @@ of the providers whose credentials you supply:
 AWS (`*.amazonaws.com`), Google Cloud (`*.googleapis.com`), Cloudflare
 (`api.cloudflare.com`) and OVH (`*.api.ovh.com`, `api.us.ovhcloud.com`).
 
-**Permissions.** Read-only is sufficient for every tool. All seven declare
+**Permissions.** Read-only is sufficient for every tool. All eight declare
 `readOnlyHint: true`, and nothing in this server creates, modifies or deletes a
 cloud resource.
 

src/clouds/aws/cloudwatch_logs.rs

@@ -1,8 +1,8 @@
 use anyhow::{anyhow, Result};
 use futures::future::join_all;
 
-use super::common::list_regions;
 use super::auth::{sign, AwsCreds};
+use super::common::list_regions;
 
 // ── Public types ──────────────────────────────────────────────────────────────
 

src/clouds/aws/ec2.rs

@@ -3,11 +3,7 @@ use chrono::{DateTime, Utc};
 use futures::future::join_all;
 
 use super::common::{ec2_query, form_params, list_regions};
-use super::{
-    as_items,
-    auth::AwsCreds,
-    az_to_region, xml_to_value,
-};
+use super::{as_items, auth::AwsCreds, az_to_region, xml_to_value};
 
 // ── Public types ──────────────────────────────────────────────────────────────
 

src/clouds/gcp/billing.rs

@@ -36,7 +36,9 @@ pub async fn get_costs_range(
     end: NaiveDate,
 ) -> Result<Vec<CostEntry>> {
     let table = creds.billing_table.as_ref().ok_or_else(|| {
-        anyhow!("billing_table not configured — set CLOUD_GCP_BILLING_TABLE for real cost data")
+        anyhow!(
+            "billing_table not configured — set CLOUD_TOOLS_GCP_BILLING_TABLE for real cost data"
+        )
     })?;
     bigquery_costs(http, creds, table, start, end).await
 }