[Bug Bash] MCP lists only 3 tools #114

tools/list returns read_file, shell, write_file. The README also lists edit_file, glob, grep

Seen in step 5 of the bug bash flow, on env 40a6c63:

curl -s -X POST localhost:7777/v1alpha/envs/alice/mcp \
  -H 'Content-Type: application/json' -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

main (de462e9) is the same. internal/mcp/tools.go registers only read_file, write_file and shell, but the "Built-in MCP Server > Available Tools" table in README.md also lists edit_file, glob and grep.

History: the initial commit (5287789) had all six in internal/tool/fs/fs.go. #27 (e57d290) moved the MCP server to internal/mcp/tools.go and brought over only three. The README table wasn't updated.

Either port edit_file, glob and grep to internal/mcp/tools.go, or drop them from the README table. An agent that reads the README, or follows the old write_file description pointing it to edit_file, will call tools that don't exist.

Found during the Substrate GKE bug bash, with help from an AI agent.