mildoc-lint

Local-first document assurance for defense-adjacent administrative, CUI, O-SMEAC, naval correspondence, and NAMP/CSEC readiness records.

mildoc-lint is a deterministic linter that catches structural failures in military-style documents before they leave the local machine.

What it is not

In short: mildoc-lint does not generate tactical plans, does not certify compliance, does not determine classification, and does not call the network.

mildoc-lint does not:

• generate tactical plans
• determine classification
• determine whether information is actually CUI (that is a designating-authority decision)
• certify CMMC, RMF, NIST, or DoD compliance
• replace official review, QA, CSEC, command approval, or systems of record (OOMA, NALCOMIS, DECKPLATE)
• use network calls, telemetry, cloud APIs, or model calls

It is not affiliated with the U.S. Department of Defense, the U.S. Navy, the U.S. Marine Corps, NAVAIR, or any U.S. Government program office. See INTENT.md, docs/PUBLIC_BOUNDARY.md, and docs/CLAIMS_MAP.md.

Install

For the full install matrix, see docs/INSTALL.md.

After PyPI publication, install the CLI with pipx:

pipx install mildoc-lint
mildoc-lint --version

From source:

python -m venv .venv
source .venv/bin/activate
pip install -e .

Optional PDF support:

pip install -e '.[pdf]'

Run

mildoc-lint lint ./docs --profile mildoc
mildoc-lint lint ./docs --profile cui --format json
mildoc-lint lint ./docs --profile all --format sarif --out mildoc.sarif
mildoc-lint namp check ./maintenance-records
mildoc-lint new opord
mildoc-lint new warnord
mildoc-lint new fragord
mildoc-lint new cui-designation-block
mildoc-lint new namp-discrepancy

CI gate:

mildoc-lint lint ./docs --profile mildoc --format sarif --out mildoc.sarif --fail-on error

Profiles

Profile	Checks
cui	DoD CUI banner shape, designation indicator block, invalid banners, legacy markings (FOUO/SBU), portion-marking consistency, "do not prefix UNCLASSIFIED" rule, plus PII indicators
pii	SSN, EDIPI/DoD ID context, DOB, passport, financial-account indicators
osmeac	O-SMEAC five-paragraph structure, mission heuristics, execution subelements, OPORD/WARNORD/FRAGORD branching
naval	naval correspondence label order and subject-line shape (SECNAV M-5216.5 surface checks only)
namp	NAMP/CSEC discrepancy/readiness record shape: reference, discrepancy, owner, corrective action, due date, status, evidence
mildoc	auto-detecting combined profile: cui + pii + osmeac + naval + namp
maildoc	alias for cui + pii + naval correspondence framing
all	every rule, forced

Supported input formats: .txt, .md, .rst, .docx. PDF supported when the optional pypdf dependency is installed.

Supported output formats: text, JSON, SARIF 2.1.0.

Example output

mildoc-lint: scanned 1 document(s), findings=6 blocker=0 error=4 warn=1 info=1

[ERROR] cui.invalid_banner @ examples/bad_cui_order.md:1:1
  Invalid or legacy CUI banner form detected.
  snippet: CUI//CTI
  fix: Use standalone "CUI" for the banner/footer. Put categories and dissemination controls in the designation indicator block.

A pre-generated SARIF example lives at examples/mildoc-example.sarif.

Why this shape

DoD CUI marking guidance requires CUI markings and a designation indicator block on documents containing CUI; it specifically says not to add CUI categories or LDCs to banner lines. USMC O-SMEAC training material frames the five-paragraph order format as a standard that prevents omissions and supports ready reference. NAVAIR's public NAMP/CSEC material describes CSEC as checklist/audit support for programs mandated within COMNAVAIRFORINST 4790.2.

mildoc-lint encodes the deterministic, mechanical parts of those standards as rules. Each finding cites a public authority. Run mildoc-lint rules to print the full list.

See docs/CUI-Compliance-Guide.md, docs/OSMEAC-Compliance-Guide.md, docs/NAMP-CSEC-Notes.md, and docs/SOURCES.md for per-rule explanations and references.

Archivist receipts

mildoc-lint v0.2 ships with an optional local Archivist ledger that produces a deterministic, content-addressed receipt for every lint run. Each receipt records what was checked, against what rule pack, by what tool version, and what the decision was. Receipts are SQLite-persisted and append-only on disk.

mildoc-lint archivist init
mildoc-lint archivist lint docs/order.md --profile osmeac --write-receipt
mildoc-lint archivist status docs/order.md
mildoc-lint archivist gate docs/order.md --require-pass --require-sources --require-no-pii

The ledger is local-only. .mildoc/ is gitignored. The Archivist does not certify compliance, determine classification, or replace official review — see docs/Archivist-Receipts.md for the full receipt schema, fail-closed conditions, and workflow.

Open-core boundary

See docs/OPEN_CORE.md for the full split.

Open (this repo, Apache-2.0):

• deterministic rule engine
• local CLI
• CUI / PII / O-SMEAC / naval / NAMP shape checks
• JSON and SARIF output
• synthetic examples
• public-source authority references

Closed / future enterprise:

• unit-specific rule packs
• NAMP/CSEC importers
• OOMA / NALCOMIS / DECKPLATE adapters
• SharePoint / NMCI packaging
• signed enterprise builds
• RMF / CMMC deployment package and artifacts

Safety and handling

The repo ships synthetic examples only. Do not commit real orders, unit rosters, maintenance records, CUI, export-controlled technical data, or operational details.

Default operation is local. There is no telemetry, no network call, no model call, and no cloud dependency.

Development

pip install -e '.[dev]'
python -m pytest
mildoc-lint lint examples --profile all

Release-readiness checklist: docs/RELEASE_CHECKLIST.md. Packaging notes: docs/PACKAGING.md and docs/RELEASE_ARTIFACTS.md.

Roadmap

See ROADMAP.md.

License

Apache-2.0. See LICENSE.