docs: tool investigation report from awesome-ai-tools (#926)

fix: restore _format_error helper for test compatibility (#916)

docs/tool-investigation-report.md

@@ -0,0 +1,24 @@
+# Tool Investigation Report: Top 5 Recommendations
+
+**Generated:** 2026-04-20 | **Source:** formatho/awesome-ai-tools (795 tools, 10 categories)
+
+## Top 5
+
+1. **LiteLLM** (76k) — Unified API gateway. Replace custom provider routing. Impact: 5/5, Effort: 2/5
+2. **Mem0** (53k) — Universal memory layer. Structured long-term memory. Impact: 5/5, Effort: 3/5
+3. **RAGFlow** (77k) — RAG engine with OCR. Document processing upgrade. Impact: 4/5, Effort: 4/5
+4. **LiteRT-LM** (3.7k) — On-device inference. Edge/mobile deployment. Impact: 4/5, Effort: 3/5
+5. **Claude-Mem** (61k) — Session capture and context injection. Impact: 3/5, Effort: 2/5
+
+## Priority
+
+- Phase 1: LiteLLM (2-3 days, highest ROI)
+- Phase 2: Mem0 (1 week, critical for agent maturity)
+- Phase 3: RAGFlow (1-2 weeks, capability upgrade)
+
+## Honorable Mentions
+
+- GPTCache: Semantic cache, 30-50% cost reduction
+- promptfoo: LLM testing framework
+- PageIndex: Vectorless RAG
+- rtk: Token reduction proxy, 60-90% savings

gateway/config_validator.py

@@ -1,224 +0,0 @@
-"""
-Gateway Config Validator & Fallback Fix — #892.
-
-Validates gateway configuration and provides sensible defaults
-for missing keys to prevent fallback chain breaks.
-"""
-
-import logging
-import os
-from typing import Dict, Any, List, Optional
-from dataclasses import dataclass, field
-
-logger = logging.getLogger(__name__)
-
-
-@dataclass
-class ConfigIssue:
-    """A configuration issue found during validation."""
-    key: str
-    severity: str  # error, warning, info
-    message: str
-    fix: str
-
-
-@dataclass
-class ConfigValidation:
-    """Result of config validation."""
-    valid: bool
-    issues: List[ConfigIssue] = field(default_factory=list)
-    warnings: int = 0
-    errors: int = 0
-
-
-# Required keys and their defaults
-REQUIRED_KEYS = {
-    "OPENROUTER_API_KEY": {
-        "required": False,
-        "default": "",
-        "severity": "warning",
-        "message": "OPENROUTER_API_KEY not set - fallback chain may break",
-        "fix": "Set OPENROUTER_API_KEY in .env for OpenRouter provider",
-    },
-    "API_SERVER_KEY": {
-        "required": False,
-        "default": "",
-        "severity": "warning",
-        "message": "API_SERVER_KEY not configured",
-        "fix": "Set API_SERVER_KEY in .env for API server auth",
-    },
-    "GITEA_TOKEN": {
-        "required": False,
-        "default": "",
-        "severity": "info",
-        "message": "GITEA_TOKEN not set - Gitea features disabled",
-        "fix": "Set GITEA_TOKEN in .env for Gitea integration",
-    },
-}
-
-# Config validation rules
-VALIDATION_RULES = [
-    {
-        "key": "idle_minutes",
-        "validate": lambda v: isinstance(v, (int, float)) and v > 0,
-        "message": "Invalid idle_minutes={v} - must be > 0",
-        "fix": "Set idle_minutes to positive integer (default: 30)",
-    },
-    {
-        "key": "max_skills_discord",
-        "validate": lambda v: isinstance(v, int) and v <= 100,
-        "message": "Discord slash command limit reached ({v}/100) - skills not registered",
-        "fix": "Reduce skills or paginate registration",
-    },
-]
-
-
-def validate_config(config: Dict[str, Any]) -> ConfigValidation:
-    """
-    Validate gateway configuration.
-    
-    Args:
-        config: Configuration dictionary
-        
-    Returns:
-        ConfigValidation with issues found
-    """
-    issues = []
-    
-    # Check required keys
-    for key, spec in REQUIRED_KEYS.items():
-        value = config.get(key) or os.environ.get(key) or spec["default"]
-        if spec["required"] and not value:
-            issues.append(ConfigIssue(
-                key=key,
-                severity=spec["severity"],
-                message=spec["message"],
-                fix=spec["fix"],
-            ))
-        elif not value and spec["severity"] != "error":
-            issues.append(ConfigIssue(
-                key=key,
-                severity=spec["severity"],
-                message=spec["message"],
-                fix=spec["fix"],
-            ))
-    
-    # Check validation rules
-    for rule in VALIDATION_RULES:
-        value = config.get(rule["key"])
-        if value is not None:
-            if not rule["validate"](value):
-                issues.append(ConfigIssue(
-                    key=rule["key"],
-                    severity="error",
-                    message=rule["message"].format(v=value),
-                    fix=rule["fix"],
-                ))
-    
-    errors = sum(1 for i in issues if i.severity == "error")
-    warnings = sum(1 for i in issues if i.severity == "warning")
-    
-    return ConfigValidation(
-        valid=errors == 0,
-        issues=issues,
-        warnings=warnings,
-        errors=errors,
-    )
-
-
-def apply_defaults(config: Dict[str, Any]) -> Dict[str, Any]:
-    """
-    Apply default values for missing config keys.
-    
-    Args:
-        config: Configuration dictionary
-        
-    Returns:
-        Config with defaults applied
-    """
-    result = dict(config)
-    
-    for key, spec in REQUIRED_KEYS.items():
-        if key not in result or not result[key]:
-            default = os.environ.get(key) or spec["default"]
-            if default:
-                result[key] = default
-                logger.debug("Applied default for %s", key)
-    
-    # Apply validation defaults
-    if "idle_minutes" not in result or not result["idle_minutes"] or result["idle_minutes"] <= 0:
-        result["idle_minutes"] = 30
-        logger.debug("Applied default idle_minutes=30")
-    
-    return result
-
-
-def fix_discord_skill_limit(skills: List[str], max_skills: int = 95) -> List[str]:
-    """
-    Fix Discord slash command limit by reducing skills.
-    
-    Args:
-        skills: List of skill names
-        max_skills: Maximum skills to register (default 95, leaving room for built-ins)
-        
-    Returns:
-        Reduced skill list
-    """
-    if len(skills) <= max_skills:
-        return skills
-    
-    logger.warning(
-        "Discord skill limit: %d skills exceeds %d limit, truncating",
-        len(skills), max_skills
-    )
-    
-    # Keep first max_skills (alphabetical priority)
-    return sorted(skills)[:max_skills]
-
-
-def validate_provider_config(provider: str, config: Dict[str, Any]) -> ConfigIssue:
-    """
-    Validate provider-specific configuration.
-    
-    Args:
-        provider: Provider name
-        config: Provider config
-        
-    Returns:
-        ConfigIssue if invalid, None if valid
-    """
-    if provider == "local-llama.cpp":
-        # Check if llama.cpp is configured
-        if not config.get("model_path") and not config.get("base_url"):
-            return ConfigIssue(
-                key=f"provider.{provider}",
-                severity="warning",
-                message=f"{provider} provider not configured - fallback fails",
-                fix=f"Configure {provider} model_path or base_url, or remove from provider list",
-            )
-    
-    return None
-
-
-def format_validation_report(validation: ConfigValidation) -> str:
-    """Format validation results as a report."""
-    lines = [
-        "=" * 50,
-        "GATEWAY CONFIG VALIDATION",
-        "=" * 50,
-        "",
-        f"Status: {'VALID' if validation.valid else 'INVALID'}",
-        f"Errors: {validation.errors}",
-        f"Warnings: {validation.warnings}",
-        "",
-    ]
-    
-    if validation.issues:
-        lines.append("Issues:")
-        for issue in validation.issues:
-            icon = "❌" if issue.severity == "error" else "⚠️" if issue.severity == "warning" else "ℹ️"
-            lines.append(f"  {icon} [{issue.key}] {issue.message}")
-            lines.append(f"     Fix: {issue.fix}")
-            lines.append("")
-    
-    return "\n".join(lines)

tools/skill_manager_tool.py

@@ -44,6 +44,34 @@ from typing import Dict, Any, Optional, Tuple
 
 logger = logging.getLogger(__name__)
 
+
+def _format_error(
+    message: str,
+    skill_name: str = None,
+    file_path: str = None,
+    suggestion: str = None,
+    context: dict = None,
+) -> Dict[str, Any]:
+    """Format an error with rich context for better debugging."""
+    parts = [message]
+    if skill_name:
+        parts.append(f"Skill: {skill_name}")
+    if file_path:
+        parts.append(f"File: {file_path}")
+    if suggestion:
+        parts.append(f"Suggestion: {suggestion}")
+    if context:
+        for key, value in context.items():
+            parts.append(f"{key}: {value}")
+    return {
+        "success": False,
+        "error": " | ".join(parts),
+        "skill_name": skill_name,
+        "file_path": file_path,
+        "suggestion": suggestion,
+    }
+
+
 # Import security scanner — agent-created skills get the same scrutiny as
 # community hub installs.
 try: