ToolFlow defines 7 utility tools with complete JSON schemas and basic descriptions. All tools have proper input schemas with typed parameters and enums where appropriate (math_calc, json_helper, time_tools, random_tools, regex_helper). Descriptions are present but generic (avg ~40 chars, below the 194-char baseline). Tool names lack action verbs (double, echo, math_calc are not verb_noun format). No output schemas documented. No error handling guidance. No tool annotations (readOnlyHint, destructiveHint). Parameter descriptions are minimal. This is a functional but unpolished implementation typical of community tools.

• Rename tools to verb_noun format: 'double' → 'calculate_double', 'echo' → 'echo_message', 'math_calc' → 'calculate_math', 'json_helper' → 'parse_json' or 'format_json', 'time_tools' → 'get_time' / 'format_time' / 'parse_time' (split into 3), 'random_tools' → 'generate_random_number' / 'choose_random_item' / 'sample_random_items', 'regex_helper' → 'find_regex_matches' / 'search_regex' / 'replace_regex'.
• Expand tool descriptions to 100-200 chars. Include WHAT it does, WHEN to use it, and what it returns. E.g., 'Calculates the square root, logarithm, sine, cosine, or power of a number. Use this for mathematical operations. Returns the computed result as a number.'
• Document output schemas for each tool. E.g., math_calc returns {result: number, operation: string}. Include this in the tool definition or in extended documentation.
• Add tool annotations: set readOnlyHint=true for all tools (they are all read-only). This signals to agents that these are safe to call without confirmation.
• Expand parameter descriptions. E.g., for json_helper.mode: 'Output mode: pretty (formatted with indentation), minify (single line), or keys (list all top-level keys). Use pretty for readability, minify for compact output, keys for schema discovery.'