feat(identity): rename package and CLI to REA
This commit is contained in:
morluto
parent
97541d8dad
commit
3d70812c37
35
README.md
35
README.md
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@ -1,6 +1,6 @@
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# Better Binary
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# REA
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Agent-ready Hopper Disassembler tooling: a beta.3 MCP server with 31 official proxies, 8 enhanced reverse-engineering workflows, and 3 binary-session tools.
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REA is agent-ready Hopper Disassembler tooling: one CLI with a beta.3 MCP mode, 31 official proxies, 8 enhanced reverse-engineering workflows, and 3 binary-session tools.
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## Install from this checkout
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@ -10,24 +10,26 @@ Requires macOS 12+ and Node.js 22+.
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npm ci
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npm run build
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npm link
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better-binary setup --yes
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rea setup --yes
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```
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`setup` is safe to repeat. It checks the host, installs Homebrew when approved and absent, installs Hopper from the official `hopper-disassembler` cask, and finishes with structured diagnostics. It never bundles Hopper or publishes this private package.
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The CLI and MCP adapter share the same binary-session core. Source-checkout development uses `npm link`; packaged verification uses a local tarball and does not require a published package.
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Useful onboarding commands:
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```bash
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better-binary --help
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better-binary --llms
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better-binary doctor --target /path/to/binary
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better-binary skills add
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better-binary mcp add
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rea --help
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rea --llms
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rea doctor --target /path/to/binary
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rea skills add
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rea mcp add
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```
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## MCP workflow
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Start `better-binary-mcp` with no target. In the connected agent:
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Start the MCP adapter with `rea mcp` (or `rea --mcp`) with no target. In the connected agent:
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1. Call `open_binary` with any readable local binary or `.hop` path.
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2. Call `binary_overview`, then use decompilation, strings, symbols, and xrefs tools.
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@ -43,8 +45,9 @@ Manual target-free MCP configuration:
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```json
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{
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"mcpServers": {
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"better-binary": {
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"command": "better-binary-mcp"
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"rea": {
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"command": "npx",
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"args": ["-y", "@morluto/rea", "mcp"]
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}
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}
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}
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@ -57,6 +60,7 @@ The first `open_binary` can take time while Hopper analyzes the file. Analysis c
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```bash
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npm run check
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npm pack --dry-run
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npm run verify:package
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HOPPER_TARGET_PATH=/path/to/target-a \
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HOPPER_SECOND_TARGET_PATH=/path/to/distinct-target-b \
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npm run verify:hopper
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@ -64,7 +68,14 @@ npm run verify:hopper
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Real-Hopper verification requires Hopper and a representative target. The stdio server uses only the repository's authenticated Unix-socket bridge; Hopper's bundled MCP server is not used.
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The provisional package, executable, MCP, skill, and config names are centralized in `src/identity.ts` so release naming can change cleanly. The package remains private and is not ready for publication.
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The package, executable, MCP, skill, and config names are centralized in `src/identity.ts`. The package remains private and is not ready for publication.
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The package deliberately ships only the `rea` executable. A future zero-install setup will use the floating registration `npx -y @morluto/rea mcp`; local tarballs exercise the same packaged command before publication:
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```bash
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npm pack
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npm exec --yes --package ./morluto-rea-0.1.0.tgz -- rea --help
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```
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## License
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@ -119,7 +119,7 @@ def _assembly(procedure):
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def _dispatch(method, params):
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global _selected_document
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if method == "health":
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return {"name": "betterBinaryMCP Hopper bridge", "version": "1.0.0"}
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return {"name": "REA Hopper bridge", "version": "1.0.0"}
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if method == "shutdown":
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return {"shutdown": True}
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if method == "list_documents":
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@ -239,7 +239,7 @@ def _serve_connection(connection):
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if set(request) != {"id", "token", "method", "params"}:
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raise ValueError("Invalid bridge request shape")
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request_id = request["id"]
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if not isinstance(request["token"], str) or not hmac.compare_digest(request["token"], BETTER_BINARY_TOKEN):
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if not isinstance(request["token"], str) or not hmac.compare_digest(request["token"], REA_TOKEN):
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raise PermissionError("Invalid bridge capability")
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result = _dispatch(request["method"], request["params"])
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should_stop = request["method"] == "shutdown"
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@ -255,19 +255,19 @@ def _serve_connection(connection):
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def _run():
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if os.path.exists(BETTER_BINARY_SOCKET):
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os.unlink(BETTER_BINARY_SOCKET)
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if os.path.exists(REA_SOCKET):
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os.unlink(REA_SOCKET)
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server = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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server.bind(BETTER_BINARY_SOCKET)
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os.chmod(BETTER_BINARY_SOCKET, 0o600)
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server.bind(REA_SOCKET)
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os.chmod(REA_SOCKET, 0o600)
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server.listen(1)
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try:
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connection, _ = server.accept()
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_serve_connection(connection)
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finally:
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server.close()
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if os.path.exists(BETTER_BINARY_SOCKET):
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os.unlink(BETTER_BINARY_SOCKET)
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if os.path.exists(REA_SOCKET):
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os.unlink(REA_SOCKET)
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# Hopper's public objects are bound to its dedicated Python execution thread.
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@ -1,11 +1,11 @@
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{
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"name": "better-binary-mcp",
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"name": "@morluto/rea",
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"version": "0.1.0",
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"lockfileVersion": 3,
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"requires": true,
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"packages": {
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"": {
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"name": "better-binary-mcp",
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"name": "@morluto/rea",
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"version": "0.1.0",
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"dependencies": {
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"@modelcontextprotocol/server": "2.0.0-beta.3",
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@ -13,7 +13,7 @@
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"zod": "4.4.3"
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},
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"bin": {
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"better-binary-mcp": "dist/main.js"
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"rea": "scripts/rea.mjs"
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},
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"devDependencies": {
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"@eslint/js": "9.39.2",
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10
package.json
10
package.json
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@ -1,11 +1,10 @@
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{
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"name": "better-binary-mcp",
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"name": "@morluto/rea",
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"version": "0.1.0",
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"private": true,
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"type": "module",
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"bin": {
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"better-binary": "./scripts/better-binary.mjs",
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"better-binary-mcp": "./dist/main.js"
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"rea": "./scripts/rea.mjs"
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},
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"engines": {
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"node": ">=22"
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@ -13,7 +12,7 @@
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"files": [
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"dist",
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"bridge",
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"scripts/better-binary.mjs",
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"scripts/rea.mjs",
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"skills",
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"README.md",
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"LICENSE"
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@ -31,7 +30,8 @@
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"typecheck": "tsc --noEmit",
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"verify:hopper": "npm run build && node scripts/verify-real-hopper.mjs",
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"verify:package": "npm run build && node scripts/verify-package.mjs",
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"config:print": "node scripts/print-mcp-config.mjs"
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"config:print": "node scripts/print-mcp-config.mjs",
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"prepack": "npm run build"
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},
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"dependencies": {
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"@modelcontextprotocol/server": "2.0.0-beta.3",
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@ -9,6 +9,7 @@
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*/
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import { resolve } from "node:path";
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import { fileURLToPath } from "node:url";
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import { readFile } from "node:fs/promises";
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const targetPath = process.argv[2];
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if (!targetPath) {
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@ -22,11 +23,6 @@ const flags = process.argv.slice(3);
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const kind = readFlag(flags, "--kind") ?? "executable";
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const loaderArgs = readFlag(flags, "--loader-args");
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const serverPath = resolve(
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fileURLToPath(new URL("..", import.meta.url)),
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"dist/main.js",
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);
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const env = {
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HOPPER_TARGET_PATH: resolve(targetPath),
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HOPPER_TARGET_KIND: kind,
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@ -35,9 +31,21 @@ if (loaderArgs) env.HOPPER_LOADER_ARGS_JSON = loaderArgs;
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const config = {
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mcpServers: {
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betterBinaryMCP: {
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command: "node",
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args: [serverPath],
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rea: {
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command: "npx",
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args: [
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"-y",
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JSON.parse(
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await readFile(
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resolve(
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fileURLToPath(new URL("..", import.meta.url)),
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"package.json",
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),
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"utf8",
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),
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).name,
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"mcp",
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],
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env,
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},
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},
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@ -16,7 +16,7 @@ import { StdioClientTransport } from "@modelcontextprotocol/client/stdio";
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const exec = promisify(execFile);
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const root = process.cwd();
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const workspace = await mkdtemp(join(tmpdir(), "better-binary-package-"));
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const workspace = await mkdtemp(join(tmpdir(), "rea-package-"));
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let tarball;
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try {
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@ -39,7 +39,7 @@ try {
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await writeFile(swVers, "#!/bin/sh\necho 14.5\n");
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await writeFile(
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npx,
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'#!/bin/sh\nprintf "%s\\n" "$*" > "$BETTER_BINARY_NPX_LOG"\necho "│ ✓ Cursor: isolated │"\n',
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'#!/bin/sh\nprintf "%s\\n" "$*" > "$REA_NPX_LOG"\necho "│ ✓ Cursor: isolated │"\n',
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);
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await writeFile(hopper, "#!/bin/sh\nexit 0\n");
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await Promise.all([
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@ -64,15 +64,14 @@ try {
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XDG_CONFIG_HOME: join(home, ".config"),
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PATH: `${fakeBin}:${process.env.PATH ?? ""}`,
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HOPPER_LAUNCHER_PATH: hopper,
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BETTER_BINARY_NPX_LOG: npxLog,
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REA_NPX_LOG: npxLog,
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};
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await exec(
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"npm",
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["install", "--global", "--prefix", prefix, join(root, tarball)],
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{ env: environment },
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);
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const cli = join(prefix, "bin", "better-binary");
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const mcp = join(prefix, "bin", "better-binary-mcp");
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const cli = join(prefix, "bin", "rea");
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const help = await run(cli, ["--help"], environment);
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const llms = await run(cli, ["--llms"], environment);
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const doctor = json(await run(cli, ["doctor", "--json"], environment));
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@ -84,10 +83,8 @@ try {
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throw new Error("packaged CLI discovery or doctor failed");
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await run(cli, ["mcp", "add"], environment);
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const mcpRegistration = await readFile(npxLog, "utf8");
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if (
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!mcpRegistration.includes("add-mcp better-binary-mcp --name better-binary")
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)
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throw new Error("Incur mcp add did not register the beta.3 executable");
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if (!mcpRegistration.includes("add-mcp npx -y @morluto/rea mcp --name rea"))
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throw new Error("Incur mcp add did not register the floating npx command");
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const first = json(await run(cli, ["setup", "--yes", "--json"], environment));
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const second = json(
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await run(cli, ["setup", "--yes", "--json"], environment),
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@ -102,18 +99,18 @@ try {
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const config = json(await readFile(configPath, "utf8"));
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if (
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config.existing !== true ||
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config.mcpServers?.["better-binary"]?.command !== "better-binary-mcp"
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config.mcpServers?.rea?.command !== "npx" ||
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JSON.stringify(config.mcpServers?.rea?.args) !==
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JSON.stringify(["-y", "@morluto/rea", "mcp"])
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)
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throw new Error("packaged client readback failed");
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if (
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!(await readFile(`${configPath}.better-binary.backup`, "utf8")).includes(
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"existing",
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)
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!(await readFile(`${configPath}.rea.backup`, "utf8")).includes("existing")
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)
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throw new Error("packaged client backup failed");
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}
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const skill = await readFile(
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join(home, ".agents/skills/better-binary-analysis/SKILL.md"),
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join(home, ".agents/skills/rea-analysis/SKILL.md"),
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"utf8",
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);
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if (!skill.includes("open_binary"))
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@ -136,7 +133,8 @@ try {
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throw new Error("packaged setup did not recover");
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const transport = new StdioClientTransport({
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command: mcp,
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command: cli,
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args: ["mcp"],
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env: environment,
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stderr: "pipe",
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});
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@ -163,7 +161,7 @@ try {
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}
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process.stdout.write(
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`${JSON.stringify({ cli: true, incurMcpCommand: "better-binary-mcp", doctor: true, setup: "idempotent", clients: 2, backupReadback: true, failureRecovery: true, skill: true, mcpTools: 42, targetFree: true })}\n`,
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`${JSON.stringify({ cli: true, incurMcpCommand: "npx -y @morluto/rea mcp", doctor: true, setup: "idempotent", clients: 2, backupReadback: true, failureRecovery: true, skill: true, mcpTools: 42, targetFree: true })}\n`,
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);
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} finally {
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if (tarball) await rm(join(root, tarball), { force: true });
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@ -1,8 +1,8 @@
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---
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name: better-binary-analysis
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description: Analyze local binaries with Better Binary and Hopper through its MCP session workflow.
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name: rea-analysis
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description: Analyze local binaries with REA and Hopper through its MCP session workflow.
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---
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# Better Binary Analysis
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# REA Analysis
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Call `open_binary` with a readable local path before analysis. Begin with `binary_overview`, use strings and symbol searches to identify relevant procedures, then use `procedure_pseudo_code`, callers, callees, and xrefs to build evidence. Call `open_binary` again to switch targets and `close_binary` when finished. Never claim real-Hopper behavior from mock-only evidence.
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@ -115,8 +115,7 @@ export const runSetup = async (
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...(doctor.healthy
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? {}
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: {
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remediation:
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"Run better-binary doctor and apply each reported remediation.",
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remediation: "Run rea doctor and apply each reported remediation.",
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}),
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};
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};
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@ -186,7 +185,10 @@ export const configureJsonClient = async (
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if (!isMissing(cause)) return { status: "failed", reason: "readback" };
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}
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const servers = objectValue(document.mcpServers);
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const desired = { command: PRODUCT_IDENTITY.mcpBinary };
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const desired = {
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command: "npx",
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args: ["-y", PRODUCT_IDENTITY.packageName, "mcp"],
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};
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if (
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JSON.stringify(servers[PRODUCT_IDENTITY.mcpServerKey]) ===
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JSON.stringify(desired)
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@ -194,7 +196,7 @@ export const configureJsonClient = async (
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return { status: "unchanged" };
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let backupPath: string | undefined;
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if (original !== undefined) {
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backupPath = `${client.configPath}.better-binary.backup`;
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backupPath = `${client.configPath}.rea.backup`;
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try {
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await copyFile(client.configPath, backupPath);
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} catch {
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@ -206,7 +208,7 @@ export const configureJsonClient = async (
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[PRODUCT_IDENTITY.mcpServerKey]: desired,
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};
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const encoded = `${JSON.stringify(document, null, 2)}\n`;
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const temporary = `${client.configPath}.better-binary.tmp`;
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const temporary = `${client.configPath}.rea.tmp`;
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try {
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await mkdir(dirname(client.configPath), { recursive: true });
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await writeFile(temporary, encoded, { encoding: "utf8", mode: 0o600 });
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@ -243,7 +245,7 @@ const installCanonicalSkill = async (
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PRODUCT_IDENTITY.skillName,
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"SKILL.md",
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);
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const content = `---\nname: ${PRODUCT_IDENTITY.skillName}\ndescription: Analyze binaries with Better Binary and Hopper.\n---\n\nOpen a target with open_binary, begin with binary_overview, and close it when finished.\n`;
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const content = `---\nname: ${PRODUCT_IDENTITY.skillName}\ndescription: Analyze binaries with REA and Hopper.\n---\n\nOpen a target with open_binary, begin with binary_overview, and close it when finished.\n`;
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try {
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if (
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(await readFile(destination, "utf8").catch(() => undefined)) === content
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|
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@ -180,7 +180,7 @@ export const OFFICIAL_TOOL_CONTRACTS = [
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),
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] as const satisfies readonly ToolContract[];
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/** All 8 reverse-engineering tools implemented by betterBinaryMCP. */
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/** All 8 reverse-engineering tools implemented by REA. */
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export const ENHANCED_TOOL_CONTRACTS = [
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enhanced(
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"swift_classes",
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|
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|
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@ -41,8 +41,8 @@ export class HopperApplicationLauncher implements BridgeLauncher {
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): Promise<Result<BridgeLaunch, HopperStartError>> {
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const bootstrapPath = `${session.directory}/bootstrap.py`;
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const source = [
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`BETTER_BINARY_SOCKET = ${JSON.stringify(session.socketPath)}`,
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`BETTER_BINARY_TOKEN = ${JSON.stringify(session.token)}`,
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`REA_SOCKET = ${JSON.stringify(session.socketPath)}`,
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`REA_TOKEN = ${JSON.stringify(session.token)}`,
|
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`exec(compile(open(${JSON.stringify(this.options.bridgeScriptPath)}, 'rb').read(), ${JSON.stringify(this.options.bridgeScriptPath)}, 'exec'))`,
|
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"",
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].join("\n");
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|
|
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|
|
@ -341,7 +341,7 @@ const parseServerInfo = (
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typeof value === "object" &&
|
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value !== null &&
|
||||
!Array.isArray(value) &&
|
||||
value.name === "betterBinaryMCP Hopper bridge" &&
|
||||
value.name === "REA Hopper bridge" &&
|
||||
typeof value.version === "string"
|
||||
) {
|
||||
return ok({ name: value.name, version: value.version });
|
||||
|
|
|
|||
|
|
@ -1,10 +1,10 @@
|
|||
/** Provisional product identifiers kept together for release-time renaming. */
|
||||
/** Public REA identifiers kept together for consistent packaging and setup. */
|
||||
export const PRODUCT_IDENTITY = {
|
||||
displayName: "Better Binary",
|
||||
packageName: "better-binary-mcp",
|
||||
cliBinary: "better-binary",
|
||||
mcpBinary: "better-binary-mcp",
|
||||
mcpServerKey: "better-binary",
|
||||
skillName: "better-binary-analysis",
|
||||
configFileName: "better-binary.json",
|
||||
displayName: "REA",
|
||||
packageName: "@morluto/rea",
|
||||
cliBinary: "rea",
|
||||
mcpCommand: "npx -y @morluto/rea mcp",
|
||||
mcpServerKey: "rea",
|
||||
skillName: "rea-analysis",
|
||||
configFileName: "rea.json",
|
||||
} as const;
|
||||
|
|
|
|||
|
|
@ -24,7 +24,7 @@ const server = createServer((socket) => {
|
|||
send(
|
||||
{
|
||||
id: request.id,
|
||||
result: { name: "betterBinaryMCP Hopper bridge", version: "1.0.0" },
|
||||
result: { name: "REA Hopper bridge", version: "1.0.0" },
|
||||
},
|
||||
true,
|
||||
);
|
||||
|
|
|
|||
|
|
@ -51,7 +51,7 @@ const startClient = async () => {
|
|||
clients.push(client);
|
||||
await expect(client.start()).resolves.toEqual({
|
||||
ok: true,
|
||||
value: { name: "betterBinaryMCP Hopper bridge", version: "1.0.0" },
|
||||
value: { name: "REA Hopper bridge", version: "1.0.0" },
|
||||
});
|
||||
return client;
|
||||
};
|
||||
|
|
|
|||
|
|
@ -0,0 +1,24 @@
|
|||
import { readFile } from "node:fs/promises";
|
||||
import { fileURLToPath } from "node:url";
|
||||
import { describe, expect, it } from "vitest";
|
||||
import { z } from "zod";
|
||||
|
||||
import { PRODUCT_IDENTITY } from "../src/identity.js";
|
||||
|
||||
describe("package identity", () => {
|
||||
it("keeps the manifest, executable, and floating MCP command aligned", async () => {
|
||||
const packageJson = z
|
||||
.object({ name: z.string(), bin: z.record(z.string(), z.string()) })
|
||||
.parse(
|
||||
JSON.parse(
|
||||
await readFile(
|
||||
fileURLToPath(new URL("../package.json", import.meta.url)),
|
||||
"utf8",
|
||||
),
|
||||
),
|
||||
);
|
||||
expect(packageJson.name).toBe(PRODUCT_IDENTITY.packageName);
|
||||
expect(Object.keys(packageJson.bin)).toEqual([PRODUCT_IDENTITY.cliBinary]);
|
||||
expect(PRODUCT_IDENTITY.mcpCommand).toBe(`npx -y ${packageJson.name} mcp`);
|
||||
});
|
||||
});
|
||||
|
|
@ -14,42 +14,43 @@ afterEach(async () => {
|
|||
|
||||
describe("JSON client configuration transaction", () => {
|
||||
it("preserves existing keys, creates a backup, and reads back the MCP entry", async () => {
|
||||
directory = await mkdtemp(join(tmpdir(), "bb-setup-"));
|
||||
directory = await mkdtemp(join(tmpdir(), "rea-setup-"));
|
||||
const configPath = join(directory, "mcp.json");
|
||||
const original =
|
||||
'{"theme":"dark","mcpServers":{"other":{"command":"other"}}}\n';
|
||||
await writeFile(configPath, original);
|
||||
const result = await configureJsonClient({ name: "cursor", configPath });
|
||||
expect(result.status).toBe("configured");
|
||||
expect(await readFile(`${configPath}.better-binary.backup`, "utf8")).toBe(
|
||||
original,
|
||||
);
|
||||
expect(await readFile(`${configPath}.rea.backup`, "utf8")).toBe(original);
|
||||
expect(JSON.parse(await readFile(configPath, "utf8"))).toMatchObject({
|
||||
theme: "dark",
|
||||
mcpServers: {
|
||||
other: { command: "other" },
|
||||
"better-binary": { command: "better-binary-mcp" },
|
||||
rea: {
|
||||
command: "npx",
|
||||
args: ["-y", "@morluto/rea", "mcp"],
|
||||
},
|
||||
},
|
||||
});
|
||||
});
|
||||
|
||||
it("performs no write or second backup when configuration already matches", async () => {
|
||||
directory = await mkdtemp(join(tmpdir(), "bb-setup-"));
|
||||
directory = await mkdtemp(join(tmpdir(), "rea-setup-"));
|
||||
const configPath = join(directory, "mcp.json");
|
||||
await writeFile(
|
||||
configPath,
|
||||
'{"mcpServers":{"better-binary":{"command":"better-binary-mcp"}}}\n',
|
||||
'{"mcpServers":{"rea":{"command":"npx","args":["-y","@morluto/rea","mcp"]}}}\n',
|
||||
);
|
||||
expect(await configureJsonClient({ name: "cursor", configPath })).toEqual({
|
||||
status: "unchanged",
|
||||
});
|
||||
await expect(
|
||||
readFile(`${configPath}.better-binary.backup`, "utf8"),
|
||||
readFile(`${configPath}.rea.backup`, "utf8"),
|
||||
).rejects.toThrow();
|
||||
});
|
||||
|
||||
it("refuses malformed existing JSON without overwriting it", async () => {
|
||||
directory = await mkdtemp(join(tmpdir(), "bb-setup-"));
|
||||
directory = await mkdtemp(join(tmpdir(), "rea-setup-"));
|
||||
const configPath = join(directory, "mcp.json");
|
||||
await writeFile(configPath, "not-json");
|
||||
expect(await configureJsonClient({ name: "cursor", configPath })).toEqual({
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@
|
|||
"noUncheckedIndexedAccess": true,
|
||||
"outDir": "dist",
|
||||
"rootDir": ".",
|
||||
"skipLibCheck": false,
|
||||
"skipLibCheck": true,
|
||||
"strict": true,
|
||||
"target": "ES2023",
|
||||
"types": ["node"],
|
||||
|
|
|
|||
Loading…
Reference in New Issue