Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add persistenceOne/bridgekitty --skill skillgit clone --depth 1 https://github.com/persistenceOne/bridgekittyWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/persistenceone/bridgekitty/skill)<a href="https://agentmods.dev/skills/persistenceone/bridgekitty/skill"><img src="https://agentmods.dev/badge/skills/persistenceone/bridgekitty/skill/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/persistenceone/bridgekitty/skill"><img src="https://agentmods.dev/badge/skills/persistenceone/bridgekitty/skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00063 | $0.00553 |
| Opus 5.5 | $0.00025 | $0.00221 |
| Sonnet 5.5 | $0.00013 | $0.00111 |
| Haiku 4.5 | $0.00006 | $0.00055 |
Grade A, and why
bridgekitty scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
BridgeKitty 🐱
Cross-chain bridge aggregator that finds the best route across 5 bridge backends.
Setup
Add to your MCP config:
{
"mcpServers": {
"bridgekitty": {
"command": "npx",
"args": ["@persistenceone/bridgekitty"]
}
}
}
No API keys required for basic usage. Optional: set LIFI_API_KEY for enhanced rate limits.
Available Tools
bridge_chains
List all supported chains (119+ EVM, Solana, Cosmos).
bridge_tokens
Search for tokens on a specific chain by name or symbol.
bridge_get_quote
Get the best bridge route. Queries all backends in parallel, ranks by net value received.
Required params: fromChain, toChain, fromToken, toToken, amount
Optional: senderAddress, recipientAddress
bridge_multi_quote
Compare quotes across all backends side-by-side. Returns all available routes with fee breakdowns.
bridge_execute
Execute a bridge transaction. Returns unsigned transaction data (or signs and sends if sign_and_send: true with a configured wallet).
bridge_status
Check the status of an in-progress bridge transfer.
wallet_setup
Create or import EVM/Cosmos/Solana wallets for the agent.
wallet_balance
Check token balances across chains.
bridge_help
Get contextual help about any BridgeKitty feature.
Typical Workflow
bridge_chains— find chain IDsbridge_tokens— find token addressesbridge_get_quote— get best route with feesbridge_execute— execute the transferbridge_status— monitor completion
Supported Directions
| Direction | Backends |
|---|---|
| EVM → EVM | All 5 backends |
| EVM → Solana | deBridge, Relay |
| Solana → EVM | deBridge |
| EVM → Cosmos | Squid |
Notes
- All transactions are returned unsigned by default — the agent or user signs separately
- Quotes expire after 60 seconds and auto-refresh on execute
- Gas estimation included in all quotes
- Circuit breaker protection: failing backends are temporarily disabled
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 82 lines · 63 tokens per session scan A 30e25858ce54
bridgekitty is a skill published in the GitHub repository persistenceOne/bridgekitty (0 stars, last pushed 4mo ago), licensed MIT. It adds 63 tokens to every session and 553 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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