This server has critical definition quality gaps. Of 15 tools, only 2 have visible input schemas in the provided source code (indexter_discover and indexter_search show minimal schemas with just a 'query' string parameter). The remaining 13 tools (x402_*, dexter_*) are referenced in file paths (lib/open-tool-auth.mjs, lib/indexter-tool-result.mjs) but the actual tool registration code, parameter schemas, and structured output definitions are not visible in the provided source. Tool descriptions are present but extremely brief (10-40 chars), offering minimal LLM guidance on WHEN to use each tool or what it returns. No parameter descriptions are visible beyond the query field. No output schemas are documented. Error handling patterns are not evident. The schema inferred from visible code (indexter tools) shows only a single 'query' parameter with generic description, which violates the constraint that parameters must describe expected format, range, and dependencies. Overall, this reads as a partial tool listing with incomplete definitions.
13 of 15 tools have NO visible input schemas in provided source code. Tools are registered in lib/open-tool-auth.mjs and lib/indexter-tool-result.mjs, but schema definitions are not included in the submission.
All tool descriptions are between 10 - 50 characters, far below the baseline average of 194 chars for production tools. Descriptions like 'Check X402 operation status' and 'Access X402 protocol resources' are too terse to guide LLM selection.
Provide complete input and output schemas for all 15 tools. For each tool, document: required/optional parameters with types, descriptions, constraints (enums, min/max, patterns), and the structure of returned data. Use JSON Schema format visible in tool registration.
Expand all tool descriptions from current 10 - 50 chars to 80 - 200 chars. Answer: What does it do? When should the LLM call it (vs. similar tools)? What does it return? Example template: 'Retrieve wallet transaction history. Use this after calling dexter_wallet to see all past transactions. Returns array of {txHash, timestamp, amount, status, fromAddress, toAddress}. Supports pagination with limit and offset parameters.'
Add descriptions for every parameter beyond just the name. For 'query' parameters, specify: Is it a substring search, regex, or keyword matching? What fields are searched (protocol name, description, category)? What does 'DeFi' match vs. 'defi' (case-sensitive?)? Example: 'Search query (case-insensitive substring). Searches protocol names, descriptions, and category tags. E.g. "uniswap", "lending", "layer2". Required.'
Document output schemas by describing each field returned. For indexter_discover and indexter_search, clarify: Does it return {protocols: [{name, symbol, category, tvl, url}], total, nextCursor}? Are there required chaining fields (e.g., protocolId for follow-up calls)? For dexter_wallet, specify: {address, balance, assets: [{symbol, amount, value}], lastUpdated}?
For irreversible operations (dexter_execute_asset_action), implement a two-step pattern: (1) dexter_prepare_asset_action returns a preview and requires explicit confirmation from the user before step (2) executes. Document this dependency in descriptions so LLMs understand the safety barrier.
No parameter descriptions visible in source. The two indexter tools show only a 'query' parameter with generic description 'Search query for discovering DeFi services' and 'Search query for protocol information'. LLMs cannot infer whether 'query' should be a protocol name, keyword, or symbol.
No output schemas documented in provided source. LLMs need to know what fields to expect from tool responses so they can plan follow-up calls and extract data correctly. Without documented return types, agents cannot chain these tools or validate responses.
Irreversible tools (dexter_execute_asset_action) lack any visible confirmation or dry-run mechanism. These tools have IRREVERSIBLE risk label but no documented error handling, pre-execution validation, or recovery guidance. Per pattern:confirmation-request, agents need explicit undo paths for destructive operations.
Tool naming uses underscores to group related operations (x402_*, dexter_*) but lacks clear verb-first action naming. 'dexter_prepare_asset_action' mixes namespace (dexter_) with verb (prepare), making it longer than baseline (avg 18 chars). Some names like 'x402_mcp_tools' are vague, does it list available tools, access them, or configure them?
No error handling guidance visible. Tools marked WRITE and IRREVERSIBLE should document error categorization (retryable vs. user-fixable vs. fatal), invalid value examples, and recovery paths. Absence of actionable error messages forces LLMs to guess whether to retry, ask the user, or abandon the plan.
Add per-parameter constraints in descriptions. For numeric limits: 'limit parameter: 1 - 100 (default 20)', not just 'limit'. For enums: 'status must be one of: pending, completed, failed, canceled', not 'status information'. For strings: 'protocol name: 2 - 50 alphanumeric and hyphens only'.
Document error responses with actionable recovery paths. Example: 'If wallet not found, call dexter_wallet with the correct address. If asset_action fails due to insufficient balance, call dexter_wallet_portfolio to check available balance.' This guides agent retries instead of dead-ending.
Add tool composition hints in descriptions. If dexter_execute_asset_action requires a prepared action_id from dexter_prepare_asset_action, state: 'Requires an action_id from dexter_prepare_asset_action(). Call prepare first, then execute with the returned action_id.'
Rename vague tools for clarity. 'x402_mcp_tools' → 'x402_list_tools' or 'x402_describe_tools' (action verb first). 'x402_access' → 'x402_open_resource' or 'x402_read_resource' (clarify whether it opens, reads, or configures).
Include pagination hints for tools returning lists. If indexter_discover or dexter_wallet_history can return hundreds of results, document: 'Supports limit (1 - 100, default 20) and offset parameters. Returns total count so agents can paginate. Returns no results beyond 100k records; use date filters to narrow scope.'
Document timeout and rate-limit expectations. If tools call external DeFi services, state: 'Typical response time: 1 - 5 seconds. Rate limit: 10 calls/minute per wallet. If rate limited, wait 60 seconds before retry.' This prevents agent spinning.
Add security and permission declarations. State which tools require authentication, what permissions they check (e.g., 'dexter_execute_asset_action requires owner signature'), and whether they support dry-run modes for testing without side effects.