ClawHub
Back to skill

Security audit

hydromancer-hyperliquid

Security checks for vulnerabilities and agentic risk

Overview

ClawScan rates this skill benign with medium confidence: the flagged API, credential, and S3 references are treated as consistent with its data-service purpose, though some evidence remains incomplete.

The verdict is benign, but it does not mean risk-free. Before installing, consider whether you want to use a skill that accesses an external API with an environment-provided key and references S3 data. Skillspector marked its analysis partial: it inspected all listed components, but some path-like references could not be resolved, so the evidence is incomplete.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Taint TrackingDirect Taint Flow, Variable-Mediated Taint Flow, Credential Exfiltration Chain
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (10)

Tainted flow: 'req' from os.environ.get (line 34, credential/environment) → urllib.request.urlopen (network output)

Critical
Category
Data Flow
Confidence
90% confidence
Finding

Credentials or environment variables flow to a network sink. This is a high-confidence indicator of credential exfiltration.

Content

Scanner excerpt · scripts/hydromancer.py (reported line 41)May include surrounding context.

python
"User-Agent": "hydromancer-skill/0.1 (+https://docs.hydromancer.xyz)",
        })
        try:
            with urllib.request.urlopen(req, timeout=timeout) as resp:
                raw = resp.read()
            try:
                return json.loads(raw.decode())

Skill declares no tool scope ('permissions' or 'allowed-tools') but code capabilities were detected: env, network.

Medium
Category
MCP Least Privilege
Confidence
70% confidence
Finding

Without declared permissions the skill's intent is opaque and cannot be validated.

Content

No source excerpt is available for this finding.

Cloud Storage Exfiltration

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is uploaded to cloud storage (S3 / GCS / Azure Blob). This may be a legitimate backup or exfiltration to an external bucket. Manual review is recommended.

Content

Scanner excerpt · references/reservoir.md (reported line 31)May include surrounding context.

bash
aws s3 ls s3://hydromancer-reservoir/by_dex/ --request-payer requester
aws s3 cp s3://hydromancer-reservoir/by_dex/hyperliquid/fills/perp/liquidations/date=2026-10-18/fills.parquet \
  ./liquidations-2026-10-18.parquet --request-payer requester

Cloud Storage Exfiltration

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is uploaded to cloud storage (S3 / GCS / Azure Blob). This may be a legitimate backup or exfiltration to an external bucket. Manual review is recommended.

Content

Scanner excerpt · references/reservoir.md (reported line 88)May include surrounding context.

md
- A wildcard path reads (and bills) every file it matches. Keep date ranges tight and select only needed columns.
- A daily snapshot isn't necessarily the daily close; the file name gives the block and time.
- Prefer `aws s3 sync` with `--include` patterns over repeated full scans when you need many days locally.

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · references/rest-api.md (reported line 4)May include surrounding context.

REST API

text
POST https://api.hydromancer.xyz/info          (testnet: https://api-testnet.hydromancer.xyz/info)
Authorization: Bearer $HYDROMANCER_API_KEY
Content-Type: application/json
User-Agent: <your app>                          (required in practice: the default Python-urllib agent gets HTTP 403 / 1010)

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · references/rest-api.md (reported line 17)May include surrounding context.

Examples (tested)

bash
curl -sS --fail-with-body https://api.hydromancer.xyz/info \
  -H "Authorization: Bearer $HYDROMANCER_API_KEY" -H "Content-Type: application/json" \
  -d '{"type": "liquidationHistoryByTime", "coin": "BTC", "startTime": 1793220000000, "limit": 100}'
# startTime is Unix milliseconds; use a recent value.

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · references/rest-api.md (reported line 25)May include surrounding context.

python
import os, requests
r = requests.post("https://api.hydromancer.xyz/info",
                  headers={"Authorization": f"Bearer {os.environ['HYDROMANCER_API_KEY']}"},
                  json={"type": "batchClearinghouseStates", "users": ["0xdfc24b077bc1425ad1dea75bcb6f8158e10df303"]},
                  timeout=60)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · references/rest-api.md (reported line 17)May include surrounding context.

Examples (tested)

bash
curl -sS --fail-with-body https://api.hydromancer.xyz/info \
  -H "Authorization: Bearer $HYDROMANCER_API_KEY" -H "Content-Type: application/json" \
  -d '{"type": "liquidationHistoryByTime", "coin": "BTC", "startTime": 1793220000000, "limit": 100}'
# startTime is Unix milliseconds; use a recent value.

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · references/rest-api.md (reported line 25)May include surrounding context.

python
import os, requests
r = requests.post("https://api.hydromancer.xyz/info",
                  headers={"Authorization": f"Bearer {os.environ['HYDROMANCER_API_KEY']}"},
                  json={"type": "batchClearinghouseStates", "users": ["0xdfc24b077bc1425ad1dea75bcb6f8158e10df303"]},
                  timeout=60)

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · references/rest-api.md (reported line 25)May include surrounding context.

python
import os, requests
r = requests.post("https://api.hydromancer.xyz/info",
                  headers={"Authorization": f"Bearer {os.environ['HYDROMANCER_API_KEY']}"},
                  json={"type": "batchClearinghouseStates", "users": ["0xdfc24b077bc1425ad1dea75bcb6f8158e10df303"]},
                  timeout=60)