common-security-standards skillA
This file is byte-identical to the first copy the registry indexed, one of 3 copies on public GitHub. Same content hash, same audit grade.
common-security-standards is agent-read markdown (skill) from hoangnguyen0403/agent-skills-standard: Enforce universal security protocols for safe, resilient software. Use when implementing authentication, encryption, authorization, input validation, secret management, or any security-sensitive feature across any language or framework..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Security Standards
## **Priority: P0 (CRITICAL)**
## Always-Apply Rules
Apply these on **every code write**, regardless of context:
- **No hardcoded secrets**: Use environment variables or secret managers. Never commit keys, passwords, or tokens to source control.
- **No raw SQL strings**: Use parameterized queries or ORMs — `WHERE id = ${userId}` always wrong.
- **No stacktraces in prod**: Return generic error codes; log full detail server-side only.
## Workflow
Activate when: implementing auth, encryption, authorization, input handling, or any security-sensitive feature.
1. **Identify trust boundaries** — map every data entry point (API, UI, CSV, webhook).
2. **Validate and sanitize** all external input at each boundary.
3. **Apply least privilege** to users, services, and containers.
4. **Verify** with SAST/DAST scanners in CI before merge.
## Context-Specific Rules
### Data Safeguarding
- **Zero Trust**: Never trust external input. Sanitize and validate every data boundary.
- **Least Privilege**: Grant minimum necessary permissions to users, services, and containers.
- **Encryption**: AES-256 for data-at-rest; TLS 1.3 for data-in-transit.
…Read the whole file at its exact version.
How to install
mdr add hoangnguyen0403/agent-skills-standard/common-security-standards@git:20260821.b9b1ba0mdr add hoangnguyen0403/agent-skills-standard/common-security-standards@sha256:d304e7df80f83120Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_qpydilruwm3xbwdk)
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Versions
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (3059 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
hoangnguyen0403/agent-skills-standard · 571 stars · license MIT · pushed 2026-09-24 · branch develop
API
GET https://markdownregistry.com/api/v1/artifacts/art_qpydilruwm3xbwdk GET https://markdownregistry.com/api/v1/resolve?ref=hoangnguyen0403/agent-skills-standard/common-security-standards GET https://markdownregistry.com/api/v1/blob/d304e7df80f83120bee217703faaf3974b32f9c81d3e42a816624efcfecfc49f
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