codeviewer-mcp (Master0fFate/codeviewer-mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 9 tools. No publisher has claimed this listing.
A stateful, AST-aware MCP server for structured code review workflows. It enables iterative review sessions with AST-based context localization and provides structured feedback with verdicts and patch suggestions for JavaScript/TypeScript code.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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Master0fFate
Source: Glama
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Install from
The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
LOG_LEVELLog level (trace, debug, info, warn, error) infoMCP_AUTH_TOKENOptional bearer token for shared environments. If set, every tool call must include auth_token. unsetMCP_CLEANUP_ON_STARTUPCleanup expired sessions on process start (true or false) falseMCP_DEFAULT_PROMPT_PROFILEDefault prompt profile ID used when register_plan omits prompt_profile Latest universal-auditor-general-v profile if present, else first profileMCP_PROJECT_PATHProject root for AST indexing and path containment checks Current working directoryMCP_PROMPTS_DIRDirectory containing .md prompt profiles <server_root>/promptsMCP_REVIEWER_DB_PATHSQLite database path <MCP_PROJECT_PATH>/.codeviewer-mcp.sqliteMCP_SESSION_TTL_HOURSSession TTL in hours, positive integer only 168All four hints declared on every tool
9/9 tools missing one or more hints — register_plan (missing: readOnlyHint); review_code_chunk (missing: readOnlyHint); cleanup_expired_sessions (missing: readOnlyHint), +6 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool inputs are validated
7/9 tool handlers declare input schemas (78%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool handlers catch errors
Only 0/9 tool handlers wrap calls in try/catch (0%)
Wrap each tool handler body in try/catch and return a structured error response.
Tool test coverage
Only 0/9 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Tests pass
npm test failed — tests do not pass
Make sure npm test runs cleanly. Common cause: missing build step or missing env vars.
Shell command execution
3 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
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