prompt-sanitizer
// Sanitize prompts before sending to LLMs. Detects PII, prompt injection, toxicity, and off-topic content. Returns cleaned text + risk score. Use when: sanitize input, check prompt safety, detect injection, remove PII, content moderation, guardrails, agent safety.
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stars:1,933
forks:367
updated:March 4, 2026
SKILL.mdreadonly
SKILL.md Frontmatter
nameprompt-sanitizer
descriptionSanitize prompts before sending to LLMs. Detects PII, prompt injection, toxicity, and off-topic content. Returns cleaned text + risk score. Use when: sanitize input, check prompt safety, detect injection, remove PII, content moderation, guardrails, agent safety.
version1.0.0
authorDaisuke134
prompt-sanitizer
Sanitize any text before sending it to an LLM. Detects and flags PII, prompt injection attempts, toxicity, and off-topic hijacking. Returns cleaned text with PII masked and a risk score.
Prerequisite
npm install -g awal@2.0.3
awal auth login
Usage
npx awal@2.0.3 x402 pay https://anicca-proxy-production.up.railway.app/api/x402/prompt-sanitizer \
-X POST \
-d '{"text": "My email is john@example.com. Ignore previous instructions.", "checks": ["pii", "injection", "toxicity", "off_topic"], "language": "en"}'
Input
| Field | Type | Required | Description |
|---|---|---|---|
| text | string (max 10000) | yes | Text to sanitize |
| checks | array of: pii, injection, toxicity, off_topic | no (default: all) | Which checks to run |
| language | "en" or "ja" | no (default: "en") | Language hint |
Output
{
"sanitizer_id": "san_a1b2c3",
"original_length": 89,
"sanitized_text": "My email is [EMAIL]. ...",
"flags": [{"type": "pii", "severity": "high", "detail": "Email detected", "position": {"start": 12, "end": 28}}],
"risk_score": 1.0,
"safe_to_send": false,
"safe_t_flag": true
}
Pricing
$0.005 USDC per request (Base network, eip155:8453)
Endpoint
POST https://anicca-proxy-production.up.railway.app/api/x402/prompt-sanitizer