diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 80b58ea..78213aa 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -129,4 +129,4 @@ jobs:
       - uses: rustsec/audit-check@v2
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          ignore: RUSTSEC-2023-0071, RUSTSEC-2024-0436
+          ignore: RUSTSEC-2023-0071, RUSTSEC-2024-0436, RUSTSEC-2026-0001
diff --git a/.gitignore b/.gitignore
index eb6eb85..a8a9c3f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -38,6 +38,8 @@ go/
 .kiro/
 .roo/
 .specify/
+specs/
+.claude/
 .gemini/
 _bmad/
 docs/
diff --git a/ccxt-exchanges/src/binance/parser/funding.rs b/ccxt-exchanges/src/binance/parser/funding.rs
index e7f3b5b..2433342 100644
--- a/ccxt-exchanges/src/binance/parser/funding.rs
+++ b/ccxt-exchanges/src/binance/parser/funding.rs
@@ -40,11 +40,8 @@ pub fn parse_funding_rate(data: &Value, market: Option<&Market>) -> Result<FeeFu
         estimated_settle_price: None,
         funding_rate,
         funding_timestamp,
-        funding_datetime: funding_timestamp.map(|t| {
-            chrono::DateTime::from_timestamp(t / 1000, 0)
-                .map(|dt| dt.to_rfc3339())
-                .unwrap_or_default()
-        }),
+        funding_datetime: funding_timestamp
+            .and_then(|t| chrono::DateTime::from_timestamp(t / 1000, 0).map(|dt| dt.to_rfc3339())),
         next_funding_rate: None,
         next_funding_timestamp: None,
         next_funding_datetime: None,
@@ -79,17 +76,11 @@ pub fn parse_funding_rate_history(
         symbol,
         funding_rate,
         funding_timestamp: funding_time,
-        funding_datetime: funding_time.map(|t| {
-            chrono::DateTime::from_timestamp(t / 1000, 0)
-                .map(|dt| dt.to_rfc3339())
-                .unwrap_or_default()
-        }),
+        funding_datetime: funding_time
+            .and_then(|t| chrono::DateTime::from_timestamp(t / 1000, 0).map(|dt| dt.to_rfc3339())),
         timestamp: funding_time,
-        datetime: funding_time.map(|t| {
-            chrono::DateTime::from_timestamp(t / 1000, 0)
-                .map(|dt| dt.to_rfc3339())
-                .unwrap_or_default()
-        }),
+        datetime: funding_time
+            .and_then(|t| chrono::DateTime::from_timestamp(t / 1000, 0).map(|dt| dt.to_rfc3339())),
     })
 }
 
diff --git a/ccxt-exchanges/src/bitget/exchange_impl.rs b/ccxt-exchanges/src/bitget/exchange_impl.rs
index 5fc049f..955a0df 100644
--- a/ccxt-exchanges/src/bitget/exchange_impl.rs
+++ b/ccxt-exchanges/src/bitget/exchange_impl.rs
@@ -134,17 +134,45 @@ impl Exchange for Bitget {
         let ohlcv_data = Bitget::fetch_ohlcv(self, symbol, &timeframe_str, since, limit).await?;
 
         // Convert OHLCV to Ohlcv with proper type conversions
-        Ok(ohlcv_data
+        ohlcv_data
             .into_iter()
-            .map(|o| Ohlcv {
-                timestamp: o.timestamp,
-                open: Price::from(Decimal::try_from(o.open).unwrap_or_default()),
-                high: Price::from(Decimal::try_from(o.high).unwrap_or_default()),
-                low: Price::from(Decimal::try_from(o.low).unwrap_or_default()),
-                close: Price::from(Decimal::try_from(o.close).unwrap_or_default()),
-                volume: Amount::from(Decimal::try_from(o.volume).unwrap_or_default()),
+            .map(|o| -> ccxt_core::Result<Ohlcv> {
+                Ok(Ohlcv {
+                    timestamp: o.timestamp,
+                    open: Price(Decimal::try_from(o.open).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV open",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    high: Price(Decimal::try_from(o.high).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV high",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    low: Price(Decimal::try_from(o.low).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV low",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    close: Price(Decimal::try_from(o.close).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV close",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    volume: Amount(Decimal::try_from(o.volume).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV volume",
+                            format!("{e}"),
+                        ))
+                    })?),
+                })
             })
-            .collect())
+            .collect::<ccxt_core::Result<Vec<Ohlcv>>>()
+            .map_err(|e| e.context("Failed to convert Bitget OHLCV data"))
     }
 
     // ==================== Trading (Private API) ====================
diff --git a/ccxt-exchanges/src/bitget/parser.rs b/ccxt-exchanges/src/bitget/parser.rs
index 475b821..4f3ea1b 100644
--- a/ccxt-exchanges/src/bitget/parser.rs
+++ b/ccxt-exchanges/src/bitget/parser.rs
@@ -167,7 +167,10 @@ pub fn parse_ticker(data: &Value, market: Option<&Market>) -> Result<Ticker> {
             .as_str()
             .or_else(|| data["instId"].as_str())
             .map(ToString::to_string)
-            .unwrap_or_default()
+            .ok_or_else(|| {
+                ccxt_core::Error::from(ccxt_core::ParseError::missing_field("symbol/instId"))
+                    .context("Failed to parse ticker: missing symbol identifier")
+            })?
     };
 
     // Bitget uses "ts" for timestamp
@@ -318,7 +321,10 @@ pub fn parse_trade(data: &Value, market: Option<&Market>) -> Result<Trade> {
         data["symbol"]
             .as_str()
             .map(ToString::to_string)
-            .unwrap_or_default()
+            .ok_or_else(|| {
+                ccxt_core::Error::from(ccxt_core::ParseError::missing_field("symbol"))
+                    .context("Failed to parse trade: missing symbol identifier")
+            })?
     };
 
     let id = data["tradeId"]
@@ -472,7 +478,10 @@ pub fn parse_order(data: &Value, market: Option<&Market>) -> Result<Order> {
             .as_str()
             .or_else(|| data["instId"].as_str())
             .map(ToString::to_string)
-            .unwrap_or_default()
+            .ok_or_else(|| {
+                ccxt_core::Error::from(ccxt_core::ParseError::missing_field("symbol/instId"))
+                    .context("Failed to parse order: missing symbol identifier")
+            })?
     };
 
     let id = data["orderId"]
diff --git a/ccxt-exchanges/src/bitget/rest/mod.rs b/ccxt-exchanges/src/bitget/rest/mod.rs
index 1f171d3..5874251 100644
--- a/ccxt-exchanges/src/bitget/rest/mod.rs
+++ b/ccxt-exchanges/src/bitget/rest/mod.rs
@@ -142,9 +142,15 @@ impl Bitget {
             String::new()
         };
 
-        let body_string = body
-            .map(|b| serde_json::to_string(b).unwrap_or_default())
-            .unwrap_or_default();
+        let body_string = match body {
+            Some(b) => serde_json::to_string(b).map_err(|e| {
+                ccxt_core::Error::from(ccxt_core::ParseError::invalid_format(
+                    "request body",
+                    format!("JSON serialization failed: {}", e),
+                ))
+            })?,
+            None => String::new(),
+        };
 
         let sign_path = format!("{}{}", path, query_string);
         let signature = auth.sign(&timestamp, method, &sign_path, &body_string);
diff --git a/ccxt-exchanges/src/bybit/parser.rs b/ccxt-exchanges/src/bybit/parser.rs
index 6e62aa4..2c8c287 100644
--- a/ccxt-exchanges/src/bybit/parser.rs
+++ b/ccxt-exchanges/src/bybit/parser.rs
@@ -218,7 +218,10 @@ pub fn parse_ticker(data: &Value, market: Option<&Market>) -> Result<Ticker> {
         data["symbol"]
             .as_str()
             .map(ToString::to_string)
-            .unwrap_or_default()
+            .ok_or_else(|| {
+                ccxt_core::Error::from(ccxt_core::ParseError::missing_field("symbol"))
+                    .context("Failed to parse ticker: missing symbol identifier")
+            })?
     };
 
     // Bybit uses different timestamp fields
@@ -342,10 +345,15 @@ pub fn parse_trade(data: &Value, market: Option<&Market>) -> Result<Trade> {
     let symbol = if let Some(m) = market {
         m.symbol.clone()
     } else {
+        // Check both "symbol" (REST API) and "s" (WebSocket) fields
         data["symbol"]
             .as_str()
+            .or_else(|| data["s"].as_str())
             .map(ToString::to_string)
-            .unwrap_or_default()
+            .ok_or_else(|| {
+                ccxt_core::Error::from(ccxt_core::ParseError::missing_field("symbol/s"))
+                    .context("Failed to parse: missing symbol identifier")
+            })?
     };
 
     let id = data["execId"]
@@ -556,10 +564,15 @@ pub fn parse_order(data: &Value, market: Option<&Market>) -> Result<Order> {
     let symbol = if let Some(m) = market {
         m.symbol.clone()
     } else {
+        // Check both "symbol" (REST API) and "s" (WebSocket) fields
         data["symbol"]
             .as_str()
+            .or_else(|| data["s"].as_str())
             .map(ToString::to_string)
-            .unwrap_or_default()
+            .ok_or_else(|| {
+                ccxt_core::Error::from(ccxt_core::ParseError::missing_field("symbol/s"))
+                    .context("Failed to parse: missing symbol identifier")
+            })?
     };
 
     let id = data["orderId"]
diff --git a/ccxt-exchanges/src/bybit/rest.rs b/ccxt-exchanges/src/bybit/rest.rs
index a498224..a9e3a43 100644
--- a/ccxt-exchanges/src/bybit/rest.rs
+++ b/ccxt-exchanges/src/bybit/rest.rs
@@ -158,9 +158,15 @@ impl Bybit {
         };
 
         // Build body string for POST requests
-        let body_string = body
-            .map(|b| serde_json::to_string(b).unwrap_or_default())
-            .unwrap_or_default();
+        let body_string = match body {
+            Some(b) => serde_json::to_string(b).map_err(|e| {
+                ccxt_core::Error::from(ccxt_core::ParseError::invalid_format(
+                    "request body",
+                    format!("JSON serialization failed: {}", e),
+                ))
+            })?,
+            None => String::new(),
+        };
 
         // Sign the request - Bybit uses query string for GET, body for POST
         let sign_params = if method.to_uppercase() == "GET" {
diff --git a/ccxt-exchanges/src/bybit/signed_request.rs b/ccxt-exchanges/src/bybit/signed_request.rs
index 1e1a209..ec6b6c4 100644
--- a/ccxt-exchanges/src/bybit/signed_request.rs
+++ b/ccxt-exchanges/src/bybit/signed_request.rs
@@ -345,7 +345,12 @@ impl<'a> BybitSignedRequestBuilder<'a> {
             body.to_string()
         } else if !self.params.is_empty() {
             // Convert params to JSON for POST/DELETE
-            serde_json::to_string(&self.params).unwrap_or_default()
+            serde_json::to_string(&self.params).map_err(|e| {
+                ccxt_core::Error::from(ccxt_core::ParseError::invalid_format(
+                    "request params",
+                    format!("JSON serialization failed: {}", e),
+                ))
+            })?
         } else {
             String::new()
         };
diff --git a/ccxt-exchanges/src/okx/exchange_impl.rs b/ccxt-exchanges/src/okx/exchange_impl.rs
index 510ec40..90299d0 100644
--- a/ccxt-exchanges/src/okx/exchange_impl.rs
+++ b/ccxt-exchanges/src/okx/exchange_impl.rs
@@ -143,17 +143,45 @@ impl Exchange for Okx {
         let ohlcv_data = Okx::fetch_ohlcv(self, symbol, &timeframe_str, since, limit).await?;
 
         // Convert OHLCV to Ohlcv with proper type conversions
-        Ok(ohlcv_data
+        ohlcv_data
             .into_iter()
-            .map(|o| Ohlcv {
-                timestamp: o.timestamp,
-                open: Price::from(Decimal::try_from(o.open).unwrap_or_default()),
-                high: Price::from(Decimal::try_from(o.high).unwrap_or_default()),
-                low: Price::from(Decimal::try_from(o.low).unwrap_or_default()),
-                close: Price::from(Decimal::try_from(o.close).unwrap_or_default()),
-                volume: Amount::from(Decimal::try_from(o.volume).unwrap_or_default()),
+            .map(|o| -> ccxt_core::Result<Ohlcv> {
+                Ok(Ohlcv {
+                    timestamp: o.timestamp,
+                    open: Price(Decimal::try_from(o.open).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV open",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    high: Price(Decimal::try_from(o.high).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV high",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    low: Price(Decimal::try_from(o.low).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV low",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    close: Price(Decimal::try_from(o.close).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV close",
+                            format!("{e}"),
+                        ))
+                    })?),
+                    volume: Amount(Decimal::try_from(o.volume).map_err(|e| {
+                        ccxt_core::Error::from(ccxt_core::ParseError::invalid_value(
+                            "OHLCV volume",
+                            format!("{e}"),
+                        ))
+                    })?),
+                })
             })
-            .collect())
+            .collect::<ccxt_core::Result<Vec<Ohlcv>>>()
+            .map_err(|e| e.context("Failed to convert OKX OHLCV data"))
     }
 
     // ==================== Trading (Private API) ====================