A software security skill that integrates with Project CodeGuard to help AI coding agents write secure code and prevent common vulnerabilities. Use this skill when writing, reviewing, or modifying code to ensure secure-by-default practices are followed.
84
Does it follow best practices?
Evaluation — 84%
↑ 1.78xAgent success when using this tile
Validation for skill structure
{
"context": "Tests whether agent avoids unsafe C functions (strcpy, sprintf, gets, strcat) and uses safe replacements with proper compiler security flags.",
"type": "weighted_checklist",
"checklist": [
{
"name": "No unsafe string functions",
"description": "Does NOT use strcpy, strcat, sprintf, or gets anywhere in the code (uses strncpy/strncat/snprintf/fgets instead)",
"max_score": 30
},
{
"name": "Uses snprintf",
"description": "Uses snprintf (not sprintf) for string formatting",
"max_score": 20
},
{
"name": "Null termination",
"description": "When using strncpy or similar bounded functions, explicitly ensures null termination of destination buffer",
"max_score": 20
},
{
"name": "Security compiler flags",
"description": "Makefile or build instructions include at least two of: -fstack-protector-all, -D_FORTIFY_SOURCE=2, -fsanitize=address, -fPIE, -Wformat-security",
"max_score": 30
}
]
}Install with Tessl CLI
npx tessl i cisco/software-securityevals
scenario-1
scenario-2
scenario-3
scenario-4
scenario-5
rules