added context7 connector to extra tools

README.md

@@ -247,6 +247,39 @@ Options include `-l/--location`, `-u/--units` (`m`/`u`/`M`), `-L/--lang`,
 `https://wttr.in`) and `WEATHER_TIMEOUT` (default `20`s).
 
 Dependencies: `curl`, `jq` (only required for the JSON format).
+Dependencies: `curl`, `jq` (only required for the JSON format).
+
+### `extras/context7`
+
+A documentation lookup tool for Bantam backed by the
+[Context7 public MCP server](https://mcp.context7.com/mcp). It speaks the same
+JSON-RPC MCP protocol as `websearch` (`initialize` ->
+`notifications/initialized` -> `tools/call`) and prints the returned text.
+Context7 keeps up-to-date docs and code examples for thousands of libraries and
+exposes two tools, both wrapped here:
+
+- `resolve-library-id` — maps a library name to a Context7 ID
+  (`/org/project`).
+- `query-docs` — fetches documentation and code examples for a resolved ID.
+
+Usage:
+
+```sh
+extras/context7 resolve "React" "hooks"          # list candidate library IDs
+extras/context7 query "/reactjs/react.dev" "useEffect cleanup"  # fetch docs
+extras/context7 docs "Express" "middleware error handling"      # resolve + query
+extras/context7 --help
+```
+
+The `docs` subcommand is a convenience that resolves the library, auto-selects
+the top-ranked match, and immediately queries it (the chosen ID is printed to
+stderr so stdout stays clean for piping). Environment overrides:
+`CONTEXT7_MCP_ENDPOINT` (default `https://mcp.context7.com/mcp`) and
+`CONTEXT7_API_KEY` (optional; sent as the `X-Context7-API-Key` header for
+higher rate limits / private docs).
+
+Dependencies: `curl`, `jq`.
+
 
 ## FAQ