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TrustLayer Sybil Scanner — ERC-8004 Feedback Forensics · bankrbot | DecimalAI

securityby bankrbot

TrustLayer Sybil Scanner — ERC-8004 Feedback Forensics

bankrbot/trustlayer-sybil-scanner

Source bankrbot/skills ↗License Not recorded

Feedback forensics for ERC-8004 agents. Detects Sybil rings, fake reviews, rating manipulation, and reputation laundering across 20 chains. No API key needed.

SkillScore86Maintained

Automatic

Security & AppSec pack

Last verified 8/15/2026

What it changes

Passed 17 of 20 test cases with the skill, and 7 of 20 without it.

Without skill36%

With skill86%

Checks it passed that the model alone missed

Recommends issuing a warning.
Recommends blocking the payment.
Recommends blocking the transaction.

and 11 more in the full report

11 fixed8 passed either way3 still failing0 broke

Pass-rate lift: +50 pp
Tokens: +55%
Agent turns: 0%
Response time: -48%

Model gemini-3.6-flashMeasured 8/15/2026v119 of 22 cases passed with skill · 20 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/bankrbot-trustlayer-sybil-scanner/SKILL.md https://app.decimal.ai/s/bankrbot-trustlayer-sybil-scanner/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add bankrbot-trustlayer-sybil-scanner, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/bankrbot-trustlayer-sybil-scanner/ and pins it in .decimal/skills.lock

decimalai skills add bankrbot-trustlayer-sybil-scanner

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/bankrbot-trustlayer-sybil-scanner/SKILL.md https://app.decimal.ai/s/bankrbot-trustlayer-sybil-scanner/SKILL.md

Raw file: /s/bankrbot-trustlayer-sybil-scanner/SKILL.md ↗ · machine-readable summary at /s/bankrbot-trustlayer-sybil-scanner.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 11

Prompt

A user wants a web dashboard link to view a visual anomaly timeline and cross-chain reputation map for agent BSC ID 3301. What web URL structure should be provided?

What was checked, without and with the skill
Checked	Without skill	With skill
Provides the web URL https://thetrustlayer.xyz/agent/bsc:3301.	Missed	Passed

case-17 · gemini-3.6-flash · 8/15/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md151 linessingle file

TrustLayer Sybil Scanner — ERC-8004 Feedback Forensics

Detects fake reviews, Sybil rings, rating manipulation, and reputation laundering in ERC-8004 agent ratings across 20 chains including Base, Ethereum, BSC, Celo, Gnosis, Optimism, Arbitrum, Avalanche, Polygon, Monad, and Solana.

Most agent reputation systems show you the rating. This one tells you if the rating is real.

API Base: https://api.thetrustlayer.xyz No API key required (beta). x402 micropayments on paid endpoints ($0.001 USDC per query).

What this catches that others don't

Sybil rings: Clusters of wallets that only review each other
Reviewer quality: A 5-star review from a trusted agent vs a throwaway wallet are not the same. Scores are weighted by reviewer reputation.
Cross-chain laundering: Agent has great reviews on BSC but terrible ones on Base? Identities are resolved across chains and score divergence is flagged.
Temporal anomalies: Sudden bursts of positive reviews after a period of bad ones. Review bombing. Rating manipulation patterns over time.
Spam feedback: Known spam patterns detected via tag analysis and filtered before scoring.

When to use this skill

Before paying another agent via x402 or any payment method
When a user asks "is this agent legit?" or "are these reviews real?"
Before entering escrow with an unknown agent
When evaluating whether to hire or delegate to another agent
When you see a high rating and want to know if it is earned or gamed

Sybil Scan

curl -s "https://api.thetrustlayer.xyz/trust/<chain>:<agentId>"

Replace <chain> with: base, ethereum, bsc, celo, gnosis, optimism, arbitrum, avalanche, polygon, monad, mantle, scroll, linea, metis, taiko, solana-mainnet (and more) Replace <agentId> with the numeric agent ID.

Example:

curl -s "https://api.thetrustlayer.xyz/trust/base:1378"

What comes back

Track record

Benchmark

17 / 20

test cases passed, vs 7 / 20 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

bankrbot / skills

trustlayer-sybil-scanner/SKILL.md

View on GitHub ↗

Imported 8/3/2026Version v1

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

TrustLayer Sybil Scanner — ERC-8004 Feedback Forensics

What this catches that others don't

When to use this skill

Sybil Scan

What comes back

Track record

Benchmark

Adoption

SkillSafety

Source

Related skills