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find_tool — Search available MCP tools by keyword or category before calling them. Returns matching tool names, descriptions, and optionally their input

diff_text — Compute a unified line-by-line diff between two text strings (LCS algorithm). Returns added/removed/unchanged line counts and formatted diff

rate_tool — Give honest usage feedback on an IA-QA MCP tool. Provide a score (1-5) and a comment. Rate low (1-2) if the tool was wrong, irrelevant, or a

validate_email — Validate an email address against RFC 5322 syntax before storing it, sending a transactional email, or adding it to a mailing list. Returns

decode_jwt — Decode a JWT (JSON Web Token) and return its header and payload without verifying the signature. Also reports whether the token is expired a

timestamp_convert — Convert between Unix timestamps (seconds or milliseconds) and ISO-8601 / UTC date strings. Auto-detects epoch vs. millisecond format. Omit i

cron_parse — Parse a cron expression into a human-readable schedule description. Supports standard 5-field cron (minute hour day month weekday).

count_code_lines — Count lines of code: total, code lines, comment lines, blank lines, and comment density. Supports JS/TS, Python, Java/C/C++, Ruby, Go, Shell