blast-radius.mdx

title	blast-radius
description	Analyze the impact of changing a file or function

Uploads the repository to the Supermodel API and runs impact analysis using call graph and dependency graph reachability. Results include risk scoring, affected files and functions, and entry points that would be impacted by changes to the target.

Aliases: br, impact

Synopsis

supermodel blast-radius [file...] [flags]

Three usage modes:

supermodel blast-radius <file>              # analyze a specific file
supermodel blast-radius --diff changes.diff # analyze from a git diff
supermodel blast-radius                     # global coupling map

Flags

Flag	Description
--diff	Path to a unified diff file (git diff output)
--force	Re-analyze even if a cached result exists
-o, --output	Output format: human | json
-h, --help	Help for blast-radius

Examples

# Impact of changing one file
supermodel blast-radius internal/api/client.go

# Impact of a pending PR
git diff main...HEAD > /tmp/pr.diff
supermodel blast-radius --diff /tmp/pr.diff

# Global coupling map (no target)
supermodel blast-radius -o json