codeguard-0-input-validation-injection Cursor ruleA
codeguard-0-input-validation-injection from santosomar/ai-agents-for-cybersecurity is a Cursor rule: instructions the Cursor agent follows in that repo.
mdr add santosomar/ai-agents-for-cybersecurity/.cursor/rules/codeguard-0-input-validation-injection.mdc@v1.5.0Pins v1.5.0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 14 of 14 checks passed
- Kind
- Cursor rule
- Repository
- santosomar/ai-agents-for-cybersecurity
- Path
.cursor/rules/codeguard-0-input-validation-injection.mdc- Versions recorded
- 2
- Latest version
- v1.5.0, committed Oct 12, 2026
- First version recorded
- Oct 19, 2025
- Size
- 6,138 bytes
- Repository stars
- 251
- License
- BSD-3-Clause
Input validation and injection defense (SQL/SOQL/LDAP/OS), parameterization, prototype pollution.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
rule_id: codeguard-0-input-validation-injection ## Input Validation & Injection Defense Ensure untrusted input is validated and never interpreted as code. Prevent injection across SQL, LDAP, OS commands, templating, and JavaScript runtime object graphs. ### Core Strategy - Validate early at trust boundaries with positive (allow‑list) validation and canonicalization. - Treat all untrusted input as data, never as code. Use safe APIs that separate code from data. - Parameterize queries/commands; escape only as last resort and context‑specific. ### Validation Playbook - Syntactic validation: enforce format, type, ranges, and lengths for each field. - Semantic validation: enforce business rules (e.g., start ≤ end date, enum allow‑lists). - Normalization: canonicalize encodings before validation; validate complete strings (regex anchors ^$); beware ReDoS. - Free‑form text: define character class allow‑lists; normalize Unicode; set length bounds. - Files: validate by content type (magic), size caps, and safe extensions; server‑generate filenames; scan; store outside web root. ### SQL Injection Prevention - Use prepared statements and parameterized queries for 100% of data access. …
Read the whole file at its exact version.
How to install
mdr add santosomar/ai-agents-for-cybersecurity/.cursor/rules/codeguard-0-input-validation-injection.mdc@sha256:b31e7ed2f850cf56The line at the top of this page pins the label v1.5.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ogw2w4qy6ttwbrcu)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 19, 2025 and Oct 12, 2026, about one every 358 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| v1.5.0 latest | 2026-10-12 | 227a2b6 | 6,138 B | A | view · diff |
| v1.0.0 | 2025-10-19 | 52abd04 | 5,007 B | A | view |
Audit of the latest version
- pass: Size between 200 bytes and 200 KB (6138 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
santosomar/ai-agents-for-cybersecurity · 251 stars · license BSD-3-Clause · pushed 2026-10-19 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ogw2w4qy6ttwbrcu GET https://markdownregistry.com/api/v1/resolve?ref=santosomar/ai-agents-for-cybersecurity/.cursor/rules/codeguard-0-input-validation-injection.mdc GET https://markdownregistry.com/api/v1/blob/b31e7ed2f850cf566365ecf7e2464e2f77298be0f445c28dbbbc714079f9fe3f
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Guides: Cursor rules vs AGENTS.md · which agent file does what.