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Feature Request: Support toolAliases in mcp.json like agent #2564

@titanjer

Description

@titanjer

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Operating system

macOS 14.3.1 (23D60)

Expected behaviour

The mcp.json configuration file should support a toolAliases field that allows users to create custom aliases for MCP tools to resolve naming conflicts or provide more intuitive names. This would work similarly to how toolAliases is supported in agent configuration files.

Actual behaviour

Currently, the mcp.json configuration file does not support toolAliases. Users cannot create custom aliases for MCP tools directly in the MCP configuration, which can lead to naming conflicts when multiple MCP servers provide tools with same names or when users want more intuitive tool names.

Steps to reproduce

  1. Create or edit an mcp.json file (either global at ~/.aws/amazonq/mcp.json or workspace-specific at .amazonq/mcp.json)
  2. Try to add a toolAliases field to define custom aliases for MCP tools
  3. Observe that this field is not recognized or supported in the MCP configuration

Environment

[q-details]
version = "1.13.2"
hash = "36e70d1cad4465a9ea479bb7f10d7973b717b4f7"
date = "2025-08-08T20:16:09.268082Z (3d ago)"

[system-info]
os = "macOS 14.3.1 (23D60)"
chip = "Intel(R) Core(TM) i7-1068NG7 CPU @ 2.30GHz"
total-cores = 4
memory = "16.00 GB"

[environment]
cwd = "/Users/USER"
cli-path = "/Users/USER"
install-method = "brew"

[env-vars]
PATH = "/Users/USER/.sdkman/candidates/java/current/bin:/Users/USER/.sdkman/candidates/groovy/current/bin:/Users/USER/.sdkman/candidates/gradle/current/bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/Users/USER/.cargo/bin:/Applications/iTerm.app/Contents/Resources/utilities:/Users/USER/.local/bin:/Users/USER/.orbstack/bin"
QTERM_SESSION_ID = "933f7a72395e438189d11a9f3b9ef807"
Q_SET_PARENT_CHECK = "1"
Q_TERM = "1.13.2"
SHELL = "/bin/zsh"
TERM = "xterm-256color"
__CFBundleIdentifier = "com.googlecode.iterm2"

[chat-settings]


[chat-trusted_tools]
fs_read=trusted
@github/search_issues=trusted

[chat-failed_request_ids]
none

[chat-context]
current_profile=default
profile_context=none

files=none

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