radare2

The r2 static provider attaches r2mcp, radare2's MCP server, over stdio. It is a generic MCP provider with radare2-specific defaults, and like it, it degrades: a missing r2mcp costs the run its tools and is named in the run summary, rather than failing the job.

Install and connect

r2pm -ci r2mcp

core.static.provider     = r2
core.static.r2.enabled   = true
core.static.r2.binary_path = r2mcp

Where r2mcp is looked for

r2pm -ci r2mcp installs under radare2's own prefix and does not touch PATH, so the provider resolves the name when it starts. A value with a directory in it is used as it is; a bare name is looked up on the worker's PATH, then in $R2PM_BINDIR, $R2PM_PREFIX/bin and radare2/prefix/bin under the user's data directory ($XDG_DATA_HOME, else ~/.local/share). Nothing past those is guessed. Not found, the log names every place looked, and the run summary carries static provider 'r2' unavailable: … with the remedy. Setting binary_path to the executable's absolute path is the sure way. See Where r2mcp is looked for.

The mirror directory

r2 reads the sample from a copy the worker makes under the samples directory: core.static.r2.mirror_dir, data/samples/r2-work by default (only its last segment is used). The copy is hardened like every mirror — a 0o700 directory, a 0o600 file — and removed when the job ends.

The mirror directory may not be hidden

radare2 rejects any path with a /. segment, so an r2mcp handed a sample under a hidden directory answers "Failed to open file." to every call. The setting refuses a hidden segment and says why.

The same directory is how r2mcp on another host can read the sample through a shared volume; see Tool servers on another host.

One tool, one analyst

The importable all-tools team runs all_tools_static_r2 with static_provider: "r2" beside two other static analysts, each reading a tool of its own. See An all-tools team.