CoinGecko OpenAPI Skill

• Outcome: Pass
• Latest audit: Sep 12, 2026 · 2:23 AM UTC
• Version: 1.0.0

Overview

This skill is a disclosed read-only CoinGecko and GeckoTerminal API helper, with expected network and API-key use for market data queries.

Before installing, confirm you trust CoinGecko and the referenced schema URL, use a limited CoinGecko API key, and keep queries narrow because requested asset IDs, token addresses, and normal API metadata will be sent to CoinGecko when the skill is used.

A.I.G

Vulnerability Patterns

• Skill Instruction Hijacking: Alters the agent's session goals or safety constraints when the skill loads
• Agent Memory Poisoning: Writes attacker-controlled rules into memory that affect later sessions
• Remote Payload Retrieval and Execution: Fetches external code whose behavior can change after review
• Embedded Malicious Code: Ships malicious scripts inside the skill and executes them locally
• Unauthorized Access and Privilege Escalation: Obtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns

• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration
• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands
• Privilege Escalation: Excessive Permissions, Sudo/Root Execution, Credential Access
• Supply Chain: Unpinned Dependencies, External Script Fetching, Obfuscated Code
• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (10)

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 · SKILL.md (reported line 15)May include surrounding context.

md

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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 · SKILL.md (reported line 64)May include surrounding context.

md

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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 · SKILL.md (reported line 94)May include surrounding context.

md

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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 · SKILL.md (reported line 137)May include surrounding context.

md

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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/coingecko-market.openapi.json (reported line 10)May include surrounding context.

json

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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/usage-patterns.md (reported line 7)May include surrounding context.

md

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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/usage-patterns.md (reported line 32)May include surrounding context.

md

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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/usage-patterns.md (reported line 88)May include surrounding context.

md

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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 · scripts/validate.sh (reported line 34)May include surrounding context.

sh

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'

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 · scripts/validate.sh (reported line 38)May include surrounding context.

sh

rg -q '^description:\s*.+' "${SKILL_FILE}" || fail 'missing description'

rg -q 'command -v coingecko-openapi-cli' "${SKILL_FILE}" || fail 'missing link-first command check'
rg -q 'uxc link coingecko-openapi-cli https://api.coingecko.com/api/v3 --schema-url ' "${SKILL_FILE}" || fail 'missing fixed link create command with schema-url'
rg -q 'coingecko-openapi-cli -h' "${SKILL_FILE}" || fail 'missing help-first host discovery example'
rg -q 'coingecko-openapi-cli get:/simple/price -h' "${SKILL_FILE}" || fail 'missing operation-level help example'
rg -q -- '--api-key-header x-cg-demo-api-key' "${SKILL_FILE}" || fail 'missing demo api key setup'