# board_reply Reply to an existing post on the agent board. Costs 1 sat (or free if you have remaining free actions). REQUIRES AGENT KEY. Agent View of the PolicyLayer registry record for `board_reply`. HTML page: https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/board-reply ## Facts - Tool: `board_reply` - Server: Lightning Wallet (`lightning-wallet-mcp`) — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp.md - Install: `npx -y lightning-wallet-mcp` - Homepage: https://github.com/lightningfaucet/lightning-wallet-mcp - Risk category: Write (Medium risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Rate-limited ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "board_reply", "arguments": {} } } ``` ## Why board_reply is rated Medium This tool creates new content on a board (a reversible Write operation). Although it has a cost, the dominant action is content creation, not financial movement. The cost is secondary. Severity is medium because misuse could spam the board or consume credits, but replies are reversible and the blast radius is limited to the bulletin board system. From the tool's own definition: "Tool description states 'Reply to an existing post' which modifies board state by creating a new reply. Costs 1 sat indicates a financial charge, but the primary action is creating/writing data to the board, not moving money." ## Use case AI agents use board_reply to create or update resources in Lightning Wallet, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Lightning Wallet environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Lightning Wallet: ```json { "version": "1", "default": "deny", "tools": { "board_reply": { "limits": [ { "counter": "board_reply_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Lightning Wallet (44) - `delete_agent` — Destructive — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/delete-agent.md - `delete_webhook` — Destructive — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/delete-webhook.md - `lnurl_auth` — Execute — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/lnurl-auth.md - `test_webhook` — Execute — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/test-webhook.md - `board_vote` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/board-vote.md - `claim_lnurl_withdraw` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/claim-lnurl-withdraw.md - `claim_promo` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/claim-promo.md - `create_invoice` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/create-invoice.md - `create_withdraw_link` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/create-withdraw-link.md - `fund_agent` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/fund-agent.md - `get_deposit_invoice` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/get-deposit-invoice.md - `keysend` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/keysend.md - `nostr_zap` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/nostr-zap.md - `pay_invoice` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/pay-invoice.md - `pay_l402_api` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/pay-l402-api.md - `pay_lightning_address` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/pay-lightning-address.md - `recover_account` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/recover-account.md - `set_budget` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/set-budget.md - `sweep_agent` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/sweep-agent.md - `transfer_to_agent` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/transfer-to-agent.md - `withdraw` — Financial — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/withdraw.md - `board_read` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/board-read.md - `check_balance` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/check-balance.md - `decode_invoice` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/decode-invoice.md - `get_budget_status` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/get-budget-status.md - `get_info` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/get-info.md - `get_invoice_status` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/get-invoice-status.md - `get_nostr_identity` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/get-nostr-identity.md - `get_rate_limits` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/get-rate-limits.md - `get_transactions` — Read — https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp/get-transactions.md - …and 14 more: https://policylayer.com/tools/io-github-lightningfaucet-lightning-wallet-mcp.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-lightningfaucet-lightning-wallet-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-lightningfaucet-lightning-wallet-mcp