Bagel

Inventory what matters on developer machines—tools, configs, and metadata about secrets—to improve org supply‑chain security without exfiltrating payloads.

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What is it?

Bagel is a cross‑platform CLI that inspects developer workstations (macOS, Linux, Windows) and produces a structured report of:

• Dev tool configurations and risky settings across 9 probes: Git, SSH, npm, environment variables, shell history, cloud credentials (AWS/GCP/Azure), JetBrains IDEs, GitHub CLI, and AI CLI tools.
• Secret locations (metadata only): presence of tokens, keys, and credentials in config files, env vars, and history—detected by 8 secret detectors—never the secret values.

For detailed documentation on each probe and detector, see the Bagel docs site.

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Privacy & Safety by Design

• No payloads. Ever. Bagel records only metadata (path, owner, perms, timestamps, config flags, key type/length/expiry). Secret values are never included in output or written to disk.
• Local‑first. Reports are printed to stdout as JSON by default.
• Minimally intrusive. Read‑only operations; no process injection; no network scanners.
• Transparent. Every probe is documented and can be toggled via configuration.

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Why run it?

Modern supply‑chain risk often lands on developer endpoints (malicious packages, misconfig creds, weak key hygiene). Bagel standardizes visibility so security teams can:

• Find high‑signal misconfigs (e.g., http.sslVerify=false, ForwardAgent yes, plaintext creds files, unencrypted SSH keys).
• Detect leaked secrets in shell history, .env files, and config files.
• Enforce baseline posture checks in CI with --strict.

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Risk checks (examples)

• Git: credential.helper=store, http.sslVerify=false, custom core.sshCommand with non‑standard binaries, dangerous protocols, fsck disabled.
• npm: tokens in .npmrc, strict-ssl=false, HTTP (non‑HTTPS) registries.
• SSH: keys without passphrase, ForwardAgent yes, StrictHostKeyChecking=no, permissive file modes.
• Environment & history: secrets embedded in env vars, .env files, or shell command history.
• Cloud: AWS credentials, GCP API keys, Azure storage keys in config files.

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Installation

Pre-built Binaries

Download the latest release from GitHub Releases.

macOS:

# Intel Mac
curl -sL https://github.com/boostsecurityio/bagel/releases/latest/download/bagel_Darwin_x86_64.tar.gz | tar xz
sudo mv bagel /usr/local/bin/

# Apple Silicon
curl -sL https://github.com/boostsecurityio/bagel/releases/latest/download/bagel_Darwin_arm64.tar.gz | tar xz
sudo mv bagel /usr/local/bin/

Homebrew:

brew tap boostsecurityio/tap
brew install bagel

Linux:

# x86_64
curl -sL https://github.com/boostsecurityio/bagel/releases/latest/download/bagel_Linux_x86_64.tar.gz | tar xz
sudo mv bagel /usr/local/bin/

# ARM64
curl -sL https://github.com/boostsecurityio/bagel/releases/latest/download/bagel_Linux_arm64.tar.gz | tar xz
sudo mv bagel /usr/local/bin/

Windows:

Download bagel_Windows_x86_64.zip from the releases page, extract it, and add it to your PATH.

Invoke-WebRequest -Uri "https://github.com/boostsecurityio/bagel/releases/latest/download/bagel_Windows_x86_64.zip" -OutFile "bagel.zip"
Expand-Archive -Path "bagel.zip" -DestinationPath "."

Build from Source

Requires Go 1.25 or later.

git clone https://github.com/boostsecurityio/bagel.git
cd bagel
go build -o bagel ./cmd/bagel

Verify Installation

bagel version

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Usage

bagel scan

This scans your workstation and outputs findings to stdout in JSON format.

Common flags

Flag	Description
--format, -f	Output format: json (default), table
--output, -o	Write output to a file instead of stdout
--strict	Exit with code 2 if any findings are detected
--no-cache	Bypass file index cache and force rebuild
--no-progress	Disable progress bars
--verbose, -v	Enable verbose (debug) logging
--config	Path to configuration file

Examples

# Save report to a file
bagel scan -o report.json

# Table output for quick review
bagel scan -f table

# CI gate: fail the build if findings exist
bagel scan --strict

# Debug a specific scan
bagel scan --verbose --no-progress

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Configuration

Bagel uses a YAML configuration file. It looks for bagel.yaml in these locations (in order):

1. Path specified with --config
2. Current directory (./bagel.yaml)
3. Platform config directory (~/.config/bagel/bagel.yaml on Unix, %APPDATA%\bagel\bagel.yaml on Windows)

Example configuration

version: 1
probes:
  git:
    enabled: true
  ssh:
    enabled: true
  npm:
    enabled: true
  env:
    enabled: true
  shell_history:
    enabled: true
  cloud:
    enabled: true
  jetbrains:
    enabled: true
  gh:
    enabled: true
  ai_cli:
    enabled: true
privacy:
  redact_paths: []
  exclude_env_prefixes: []
output:
  include_file_hashes: false
  include_file_content: false

All probes are enabled by default. To disable a probe, set enabled: false.

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Output schema (excerpt)

{
  "metadata": {
    "version": "0.1.0",
    "timestamp": "2026-02-10T12:00:00Z",
    "duration": "1.234s"
  },
  "host": {
    "hostname": "dev-laptop",
    "os": "darwin",
    "arch": "arm64",
    "username": "dev",
    "system": {
      "os_version": "15.3",
      "kernel_version": "Darwin 25.2.0",
      "cpu_model": "Apple M1",
      "cpu_cores": 8,
      "ram_total_gb": 16
    }
  },
  "findings": [
    {
      "id": "git-ssl-verify-disabled",
      "probe": "git",
      "severity": "high",
      "title": "Git SSL Verification Disabled",
      "message": "Git is configured to skip SSL certificate verification...",
      "path": "git-config:http.sslverify"
    },
    {
      "id": "ssh-private-key-rsa",
      "probe": "ssh",
      "severity": "critical",
      "title": "Unencrypted SSH Private Key Detected (RSA)",
      "message": "An unencrypted RSA SSH private key was detected...",
      "path": "file:/Users/dev/.ssh/id_rsa"
    }
  ]
}

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Architecture

• Probes: small, hermetic modules that scan specific areas of the system.
• Detectors: reusable secret detection patterns used by probes.
• Collector: orchestrates probes with timeouts and resource caps.
• Reporters: render JSON or table output; emit exit codes for CI.

Each probe declares its scope (user/system), paths touched, env vars read, and risk rules it can emit.

Current Probes

Probe	Description	What it checks
git	Git configuration security	SSL verification disabled, SSH config issues (StrictHostKeyChecking, UserKnownHostsFile), plaintext credential storage (credential.helper=store), dangerous protocols (ext, fd, file), fsck disabled, proxy settings, custom hooks path
ssh	SSH configuration and key security	StrictHostKeyChecking=no, UserKnownHostsFile=/dev/null, ForwardAgent=yes, private key file permissions, unencrypted private keys
npm	NPM/Yarn configuration	.npmrc and .yarnrc files: strict-ssl=false, HTTP (non-HTTPS) registries, always-auth settings
env	Environment variables and dotfiles	Environment variables, shell config files (.bashrc, .zshrc), .env files for embedded secrets
shell_history	Shell history files	.bash_history, .zsh_history for secrets in command history
cloud	Cloud provider credentials	AWS (~/.aws/config, ~/.aws/credentials), GCP (~/.config/gcloud/), Azure config files
jetbrains	JetBrains IDE configuration	JetBrains IDE workspace files and configuration for embedded secrets
gh	GitHub CLI	GitHub CLI authentication tokens and configuration
ai_cli	AI CLI tools	Credential files and chat logs for Gemini, Codex, Claude, and OpenCode

Current Detectors

Detector	Description	Patterns detected
github-token	GitHub authentication tokens	Classic PAT (ghp_), Fine-grained PAT (github_pat_), OAuth (gho_), App User-to-Server (ghu_), App Server-to-Server (ghs_), Refresh Token (ghr_)
npm-token	NPM authentication tokens	NPM auth tokens (npm_*)
ai-service	AI service API keys	OpenAI (sk-), Anthropic (sk-ant-api03-, sk-ant-admin01-), Hugging Face (hf_, api_org_)
http-authentication	HTTP auth credentials	Bearer tokens, Basic Auth headers, API key headers (X-API-Key, etc.), Basic Auth in URLs (http://user:pass@host)
ssh-private-key	SSH private keys	RSA, DSA, EC, OPENSSH, PKCS8 keys; detects encrypted vs unencrypted
cloud-credentials	Cloud provider credentials	AWS Access Key ID (AKIA*, ASIA*, etc.), GCP API Key (AIza*), Azure Storage Account Key
generic-api-key	Generic secrets	High-entropy strings matching common secret patterns (uses Shannon entropy analysis)
jwt	JSON Web Tokens	JWT tokens (eyJ prefix with standard JWT structure)

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Platform support

OS	Support
macOS (Intel & Apple Silicon)	Full support
Linux (x86_64 & ARM64)	Full support
Windows (x86_64)	Full support with platform-specific file paths and PowerShell history

All probes work cross-platform with appropriate path handling for each OS.

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Integrations

• CI: run bagel scan --strict in your pipeline to fail builds when findings are detected.

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Exit codes

• 0 – success, no findings detected (or --strict not set)
• 1 – runtime error
• 2 – findings detected (when using --strict)

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FAQ

Does it read my secrets? No. It only gathers metadata and security‑relevant flags.

Is it noisy? Probes are read‑only, batched, and time‑boxed to keep scans under a minute on typical dev machines.

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