getreadystack/fedramp-oscal-ssp-lint repository overview

⁠FedRAMP OSCAL SSP Lint

16 checks on a system-security-plan JSON, in your editor, before a validator returns the package

⁠Run

docker run --rm -v "$PWD":/work getreadystack/fedramp-oscal-ssp-lint /work/file

The same 16 rules as the VS Code extension, in a container. Mount a folder on /work.

⁠Free

• Checks one OSCAL system-security-plan JSON with all 16 rules and lists every defect with its JSON path, severity and the fix. On the bundled sample the clean plan returns 0 findings and the generated plan returns 19 findings across 14 of the 16 checks, including last-modified 503 days stale as of 2026-09-17 and control cp-9 planned with a completion date 79 days past.
• --rules lists every rule

⁠With a licence ($29 once)

• Sweeps every OSCAL file in the workspace, resolves uuid references across the whole package instead of within one file, and writes a dated report to hand to a 3PAO. $29 once, one licence key per person or CI seat, 7-day full refund.

docker run --rm -e READYSTACK_LICENSE=<key> -v "$PWD":/work getreadystack/fedramp-oscal-ssp-lint --dir /work --ci

Hand-review by a FedRAMP advisory consultant runs $150 to $300 an hour

⁠Use from an AI agent (MCP)

Claude Code · Cursor · Windsurf · any MCP client - add to your MCP config:

{ "mcpServers": { "fedramp-oscal-ssp-lint": { "command": "npx", "args": ["-y", "@readystack/fedramp-oscal-ssp-lint", "--mcp"] } } }

Tools: check_text and check_file (free) · check_dir (licence; the full sweep is free for 7 days). The agent gets every finding with the line number.

⁠Use in CI

- name: FedRAMP OSCAL SSP Lint
  run: npx -y @readystack/fedramp-oscal-ssp-lint --dir . --ci

(container: docker run --rm -v "$PWD:/work" getreadystack/fedramp-oscal-ssp-lint --dir /work --ci)

Try the full run free for 7 days — no key needed. Then one licence, 7-day refund, no questions. Set READYSTACK_LICENSE=<key> or run --license <key> once.

Get a licence⁠