build: Removed unnecessary Language import for Windows systems

Decompose God-Config struct into focused state architecture with MCP SSE support and comprehensive tests

Cargo.lock

@@ -23,7 +23,7 @@ version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d122413f284cf2d62fb1b7db97e02edb8cda96d769b16e443a4f6195e35662b0"
 dependencies = [
- "crypto-common",
+ "crypto-common 0.1.7",
  "generic-array",
 ]
 
@@ -278,9 +278,9 @@ checksum = "f2032f911046de80f0a198e0901378627c33f59ea0ac00e363d481118bd70a53"
 
 [[package]]
 name = "aws-config"
-version = "1.8.13"
+version = "1.8.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c456581cb3c77fafcc8c67204a70680d40b61112d6da78c77bd31d945b65f1b5"
+checksum = "517aa062d8bd9015ee23d6daa5e1c1372328412fdae4e6c4c1be9b69c6ad37a2"
 dependencies = [
  "aws-credential-types",
  "aws-runtime",
@@ -292,13 +292,14 @@ dependencies = [
  "aws-smithy-json",
  "aws-smithy-runtime",
  "aws-smithy-runtime-api",
+ "aws-smithy-schema",
  "aws-smithy-types",
  "aws-types",
  "bytes",
  "fastrand",
  "hex",
  "http 1.4.0",
- "ring",
+ "sha1",
  "time",
  "tokio",
  "tracing",
@@ -308,9 +309,9 @@ dependencies = [
 
 [[package]]
 name = "aws-credential-types"
-version = "1.2.11"
+version = "1.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3cd362783681b15d136480ad555a099e82ecd8e2d10a841e14dfd0078d67fee3"
+checksum = "8f20799b373a1be121fe3005fba0c2090af9411573878f224df44b42727fcaf7"
 dependencies = [
  "aws-smithy-async",
  "aws-smithy-runtime-api",
@@ -355,9 +356,9 @@ dependencies = [
 
 [[package]]
 name = "aws-runtime"
-version = "1.6.0"
+version = "1.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c635c2dc792cb4a11ce1a4f392a925340d1bdf499289b5ec1ec6810954eb43f5"
+checksum = "77ed8e8c52d2dc2390ad9f15647fe663f71e9780b4262c190fbb823a32721566"
 dependencies = [
  "aws-credential-types",
  "aws-sigv4",
@@ -368,6 +369,7 @@ dependencies = [
  "aws-smithy-types",
  "aws-types",
  "bytes",
+ "bytes-utils",
  "fastrand",
  "http 1.4.0",
  "http-body 1.0.1",
@@ -379,9 +381,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sdk-secretsmanager"
-version = "1.99.0"
+version = "1.105.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81f5e5b4f5612dc147e56bf2c1c436e8e098dc3433fb525cfd7562128a78b53f"
+checksum = "1c4e56ac810211dc33810c7aa3612eda29a8b1e8c7e2db6e960c8657e3d95e42"
 dependencies = [
  "aws-credential-types",
  "aws-runtime",
@@ -403,9 +405,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sdk-sso"
-version = "1.93.0"
+version = "1.99.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9dcb38bb33fc0a11f1ffc3e3e85669e0a11a37690b86f77e75306d8f369146a0"
+checksum = "9f4055e6099b2ec264abdc0d9bbfffce306c1601809275c861594779a0b04b45"
 dependencies = [
  "aws-credential-types",
  "aws-runtime",
@@ -427,9 +429,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sdk-ssooidc"
-version = "1.95.0"
+version = "1.101.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ada8ffbea7bd1be1f53df1dadb0f8fdb04badb13185b3321b929d1ee3caad09"
+checksum = "02f009ba0284c5d696425fd7b4dcc5b189f5726f4041b7a5794daecb3a68d598"
 dependencies = [
  "aws-credential-types",
  "aws-runtime",
@@ -451,9 +453,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sdk-sts"
-version = "1.97.0"
+version = "1.104.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6443ccadc777095d5ed13e21f5c364878c9f5bad4e35187a6cdbd863b0afcad"
+checksum = "6aa6622798e19e6a76b690562085dd4771c736cd48343464a53ab4ae2f2c9f84"
 dependencies = [
  "aws-credential-types",
  "aws-runtime",
@@ -476,9 +478,9 @@ dependencies = [
 
 [[package]]
 name = "aws-sigv4"
-version = "1.3.8"
+version = "1.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "efa49f3c607b92daae0c078d48a4571f599f966dce3caee5f1ea55c4d9073f99"
+checksum = "b7083fb918b38474ac65ffbf8a69fc8792d36879f4ac5f1667b43aec61efe9a5"
 dependencies = [
  "aws-credential-types",
  "aws-smithy-http",
@@ -487,20 +489,20 @@ dependencies = [
  "bytes",
  "form_urlencoded",
  "hex",
- "hmac",
+ "hmac 0.13.0",
  "http 0.2.12",
  "http 1.4.0",
  "percent-encoding",
- "sha2",
+ "sha2 0.11.0",
  "time",
  "tracing",
 ]
 
 [[package]]
 name = "aws-smithy-async"
-version = "1.2.11"
+version = "1.2.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52eec3db979d18cb807fc1070961cc51d87d069abe9ab57917769687368a8c6c"
+checksum = "2ffcaf626bdda484571968400c326a244598634dc75fd451325a54ad1a59acfc"
 dependencies = [
  "futures-util",
  "pin-project-lite",
@@ -509,9 +511,9 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-eventstream"
-version = "0.60.18"
+version = "0.60.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "35b9c7354a3b13c66f60fe4616d6d1969c9fd36b1b5333a5dfb3ee716b33c588"
+checksum = "faf09d74e5e32f76b8762da505a3cd59303e367a664ca67295387baa8c1d7548"
 dependencies = [
  "aws-smithy-types",
  "bytes",
@@ -520,9 +522,9 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-http"
-version = "0.63.3"
+version = "0.63.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "630e67f2a31094ffa51b210ae030855cb8f3b7ee1329bdd8d085aaf61e8b97fc"
+checksum = "ba1ab2dc1c2c3749ead27180d333c42f11be8b0e934058fb4b2258ee8dbe5231"
 dependencies = [
  "aws-smithy-runtime-api",
  "aws-smithy-types",
@@ -541,9 +543,9 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-http-client"
-version = "1.1.9"
+version = "1.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12fb0abf49ff0cab20fd31ac1215ed7ce0ea92286ba09e2854b42ba5cabe7525"
+checksum = "6a2f165a7feee6f263028b899d0a181987f4fa7179a6411a32a439fba7c5f769"
 dependencies = [
  "aws-smithy-async",
  "aws-smithy-runtime-api",
@@ -571,27 +573,29 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-json"
-version = "0.62.3"
+version = "0.62.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3cb96aa208d62ee94104645f7b2ecaf77bf27edf161590b6224bfbac2832f979"
+checksum = "517089205f18ab4adc5a3e02888cb139bbbbb2e168eac9f396216925d1fbeaf5"
 dependencies = [
+ "aws-smithy-runtime-api",
+ "aws-smithy-schema",
  "aws-smithy-types",
 ]
 
 [[package]]
 name = "aws-smithy-observability"
-version = "0.2.4"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0a46543fbc94621080b3cf553eb4cbbdc41dd9780a30c4756400f0139440a1d"
+checksum = "a06c2315d173edbf1920da8ba3a7189695827002e4c0fc961973ab1c54abca9c"
 dependencies = [
  "aws-smithy-runtime-api",
 ]
 
 [[package]]
 name = "aws-smithy-query"
-version = "0.60.13"
+version = "0.60.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0cebbddb6f3a5bd81553643e9c7daf3cc3dc5b0b5f398ac668630e8a84e6fff0"
+checksum = "1a56d79744fb3edb5d722ef79d86081e121d3b9422cb209eb03aea6aa4f21ebd"
 dependencies = [
  "aws-smithy-types",
  "urlencoding",
@@ -599,15 +603,16 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-runtime"
-version = "1.10.0"
+version = "1.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3df87c14f0127a0d77eb261c3bc45d5b4833e2a1f63583ebfb728e4852134ee"
+checksum = "b8e6f5caf6fea86f8c2206541ab5857cfcda9013426cdbe8fa0098b9e2d32182"
 dependencies = [
  "aws-smithy-async",
  "aws-smithy-http",
  "aws-smithy-http-client",
  "aws-smithy-observability",
  "aws-smithy-runtime-api",
+ "aws-smithy-schema",
  "aws-smithy-types",
  "bytes",
  "fastrand",
@@ -624,11 +629,12 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-runtime-api"
-version = "1.11.3"
+version = "1.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49952c52f7eebb72ce2a754d3866cc0f87b97d2a46146b79f80f3a93fb2b3716"
+checksum = "dc117c179ecf39a62a0a3f49f600e9ac26a7ad7dd172177999f83933af776c32"
 dependencies = [
  "aws-smithy-async",
+ "aws-smithy-runtime-api-macros",
  "aws-smithy-types",
  "bytes",
  "http 0.2.12",
@@ -640,10 +646,32 @@ dependencies = [
 ]
 
 [[package]]
-name = "aws-smithy-types"
-version = "1.4.3"
+name = "aws-smithy-runtime-api-macros"
+version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b3a26048eeab0ddeba4b4f9d51654c79af8c3b32357dc5f336cee85ab331c33"
+checksum = "8d7396fd9500589e62e460e987ecb671bad374934e55ec3b5f498cc7a8a8a7b7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "aws-smithy-schema"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7442cb268338f0eb8278140a107c046756aa01093d8ef5e99628d34ae09c94f5"
+dependencies = [
+ "aws-smithy-runtime-api",
+ "aws-smithy-types",
+ "http 1.4.0",
+]
+
+[[package]]
+name = "aws-smithy-types"
+version = "1.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "056b66dbce2f81cc0c1e2b05bb402eb58f8a3530479d650efadd5bbae9a4050b"
 dependencies = [
  "base64-simd",
  "bytes",
@@ -667,22 +695,23 @@ dependencies = [
 
 [[package]]
 name = "aws-smithy-xml"
-version = "0.60.13"
+version = "0.60.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "11b2f670422ff42bf7065031e72b45bc52a3508bd089f743ea90731ca2b6ea57"
+checksum = "0ce02add1aa3677d022f8adf81dcbe3046a95f17a1b1e8979c145cd21d3d22b3"
 dependencies = [
  "xmlparser",
 ]
 
 [[package]]
 name = "aws-types"
-version = "1.3.11"
+version = "1.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d980627d2dd7bfc32a3c025685a033eeab8d365cc840c631ef59d1b8f428164"
+checksum = "d16bf10b03a3c01e6b3b7d47cd964e873ffe9e7d4e80fad16bd4c077cb068531"
 dependencies = [
  "aws-credential-types",
  "aws-smithy-async",
  "aws-smithy-runtime-api",
+ "aws-smithy-schema",
  "aws-smithy-types",
  "rustc_version",
  "tracing",
@@ -904,7 +933,7 @@ version = "0.10.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "46502ad458c9a52b69d4d4d32775c788b7a1b85e8bc9d482d92250fc0e3f8efe"
 dependencies = [
- "digest",
+ "digest 0.10.7",
 ]
 
 [[package]]
@@ -916,6 +945,15 @@ dependencies = [
  "generic-array",
 ]
 
+[[package]]
+name = "block-buffer"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cdd35008169921d80bc60d3d0ab416eecb028c4cd653352907921d95084790be"
+dependencies = [
+ "hybrid-array",
+]
+
 [[package]]
 name = "block2"
 version = "0.6.2"
@@ -1104,7 +1142,7 @@ version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
 dependencies = [
- "crypto-common",
+ "crypto-common 0.1.7",
  "inout",
  "zeroize",
 ]
@@ -1201,6 +1239,12 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "cmov"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f88a43d011fc4a6876cb7344703e297c71dda42494fee094d5f7c76bf13f746"
+
 [[package]]
 name = "colorchoice"
 version = "1.0.5"
@@ -1283,6 +1327,12 @@ version = "0.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
 
+[[package]]
+name = "const-oid"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a6ef517f0926dd24a1582492c791b6a4818a4d94e789a334894aa15b0d12f55c"
+
 [[package]]
 name = "convert_case"
 version = "0.10.0"
@@ -1457,6 +1507,15 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "crypto-common"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce6e4c961d6cd6c9a86db418387425e8bdeaf05b3c8bc1411e6dca4c252f1453"
+dependencies = [
+ "hybrid-array",
+]
+
 [[package]]
 name = "cssparser"
 version = "0.34.0"
@@ -1480,6 +1539,15 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "ctutils"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d5515a3834141de9eafb9717ad39eea8247b5674e6066c404e8c4b365d2a29e"
+dependencies = [
+ "cmov",
+]
+
 [[package]]
 name = "curve25519-dalek"
 version = "4.1.3"
@@ -1489,7 +1557,7 @@ dependencies = [
  "cfg-if",
  "cpufeatures 0.2.17",
  "curve25519-dalek-derive",
- "digest",
+ "digest 0.10.7",
  "fiat-crypto",
  "rustc_version",
  "subtle",
@@ -1582,7 +1650,7 @@ version = "0.7.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7c1832837b905bbfb5101e07cc24c8deddf52f93225eee6ead5f4d63d53ddcb"
 dependencies = [
- "const-oid",
+ "const-oid 0.9.6",
  "zeroize",
 ]
 
@@ -1677,11 +1745,23 @@ version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
- "block-buffer",
- "crypto-common",
+ "block-buffer 0.10.4",
+ "crypto-common 0.1.7",
  "subtle",
 ]
 
+[[package]]
+name = "digest"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f1dd6dbb5841937940781866fa1281a1ff7bd3bf827091440879f9994983d5c2"
+dependencies = [
+ "block-buffer 0.12.0",
+ "const-oid 0.10.2",
+ "crypto-common 0.2.2",
+ "ctutils",
+]
+
 [[package]]
 name = "dirs"
 version = "6.0.0"
@@ -1797,7 +1877,7 @@ dependencies = [
  "curve25519-dalek",
  "ed25519",
  "serde",
- "sha2",
+ "sha2 0.10.9",
  "signature",
  "subtle",
  "zeroize",
@@ -2400,7 +2480,16 @@ version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
 dependencies = [
- "digest",
+ "digest 0.10.7",
+]
+
+[[package]]
+name = "hmac"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6303bc9732ae41b04cb554b844a762b4115a61bfaa81e3e83050991eeb56863f"
+dependencies = [
+ "digest 0.11.3",
 ]
 
 [[package]]
@@ -2564,6 +2653,15 @@ version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "135b12329e5e3ce057a9f972339ea52bc954fe1e9358ef27f95e89716fbc5424"
 
+[[package]]
+name = "hybrid-array"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9155a582abd142abc056962c29e3ce5ff2ad5469f4246b537ed42c5deba857da"
+dependencies = [
+ "typenum",
+]
+
 [[package]]
 name = "hyper"
 version = "0.14.32"
@@ -3247,7 +3345,7 @@ dependencies = [
  "futures-util",
  "fuzzy-matcher",
  "gman",
- "hmac",
+ "hmac 0.12.1",
  "hnsw_rs",
  "html_to_markdown",
  "http 1.4.0",
@@ -3276,7 +3374,7 @@ dependencies = [
  "serde_json",
  "serde_yaml",
  "serial_test",
- "sha2",
+ "sha2 0.10.9",
  "shell-words",
  "strum_macros",
  "syntect",
@@ -4718,9 +4816,9 @@ checksum = "323c417e1d9665a65b263ec744ba09030cfb277e9daa0b018a4ab62e57bc8189"
 
 [[package]]
 name = "rpassword"
-version = "7.5.2"
+version = "7.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5ac5b223d9738ef56e0b98305410be40fa0941bf6036c56f1506751e43552d64"
+checksum = "835a57a69104632d64deb0df2e09a69945cd7a6eab4070fc9b1d7e50cf6c3edc"
 dependencies = [
  "libc",
  "rtoolbox",
@@ -4767,7 +4865,7 @@ version = "8.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5bcdef0be6fe7f6fa333b1073c949729274b05f123a0ad7efcb8efd878e5c3b1"
 dependencies = [
- "sha2",
+ "sha2 0.10.9",
  "walkdir",
 ]
 
@@ -5299,6 +5397,17 @@ dependencies = [
  "stable_deref_trait",
 ]
 
+[[package]]
+name = "sha1"
+version = "0.10.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3bf829a2d51ab4a5ddf1352d8470c140cadc8301b2ae1789db023f01cedd6ba"
+dependencies = [
+ "cfg-if",
+ "cpufeatures 0.2.17",
+ "digest 0.10.7",
+]
+
 [[package]]
 name = "sha2"
 version = "0.10.9"
@@ -5307,7 +5416,18 @@ checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
 dependencies = [
  "cfg-if",
  "cpufeatures 0.2.17",
- "digest",
+ "digest 0.10.7",
+]
+
+[[package]]
+name = "sha2"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "446ba717509524cb3f22f17ecc096f10f4822d76ab5c0b9822c5f9c284e825f4"
+dependencies = [
+ "cfg-if",
+ "cpufeatures 0.3.0",
+ "digest 0.11.3",
 ]
 
 [[package]]
@@ -5387,7 +5507,7 @@ version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
 dependencies = [
- "digest",
+ "digest 0.10.7",
  "rand_core 0.6.4",
 ]
 
@@ -6293,7 +6413,7 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc1de2c688dc15305988b563c3854064043356019f97a4b46276fe734c4f07ea"
 dependencies = [
- "crypto-common",
+ "crypto-common 0.1.7",
  "subtle",
 ]
 

Cargo.toml

@@ -10,7 +10,7 @@ repository = "https://github.com/Dark-Alex-17/loki"
 categories = ["command-line-utilities"]
 readme = "README.md"
 license = "MIT"
-rust-version = "1.89.0"
+rust-version = "1.95.0"
 exclude = [".github", "CONTRIBUTING.md"]
 
 [dependencies]

src/config/install_remote.rs

@@ -6,6 +6,7 @@ use std::fs;
 use std::path::{Path, PathBuf};
 
 use crate::config::{InstallFilter, paths};
+#[cfg(not(windows))]
 use crate::function::Language;
 use crate::mcp::{McpServer, McpServersConfig};
 use crate::utils;

src/graph/llm.rs

@@ -28,36 +28,46 @@ impl LlmNodeExecutor {
         parent_ctx: &mut RequestContext,
     ) -> Result<LlmExecutionOutcome> {
         let result = run(node, state_manager, parent_ctx).await;
-        let (output, failed) = match result {
+        let (output, failure_reason) = match result {
             Ok(raw) => match &node.output_schema {
                 Some(schema) => match structured::extract(&raw, schema, parent_ctx).await {
-                    Ok(value) => (value, false),
+                    Ok(value) => (value, None),
                     Err(e) => {
                         warn!("llm node structured extraction failed: {e}");
                         (
                             Value::String(format!("LLM node structured-extraction failed: {e}")),
-                            true,
+                            Some(format!("structured-extraction failed: {e}")),
                         )
                     }
                 },
-                None => (Value::String(raw), false),
+                None => (Value::String(raw), None),
             },
             Err(e) => {
                 warn!("llm node failed: {e}");
-                (Value::String(format!("LLM node failed: {e}")), true)
+                (
+                    Value::String(format!("LLM node failed: {e}")),
+                    Some(format!("LLM call failed: {e:#}")),
+                )
             }
         };
 
         apply_state_updates_with_output(node, state_manager, &output);
-        Ok(outcome_from(failed, node.fallback.as_deref()))
+        outcome_from(failure_reason.as_deref(), node.fallback.as_deref())
     }
 }
 
-fn outcome_from(failed: bool, fallback: Option<&str>) -> LlmExecutionOutcome {
-    if failed && let Some(fb) = fallback {
-        LlmExecutionOutcome::FellBack(fb.to_string())
-    } else {
-        LlmExecutionOutcome::Continue
+fn outcome_from(
+    failure_reason: Option<&str>,
+    fallback: Option<&str>,
+) -> Result<LlmExecutionOutcome> {
+    match (failure_reason, fallback) {
+        (None, _) => Ok(LlmExecutionOutcome::Continue),
+        (Some(_), Some(fb)) => Ok(LlmExecutionOutcome::FellBack(fb.to_string())),
+        (Some(reason), None) => bail!(
+            "LLM node failed and no fallback declared: {reason}. \
+             Add a `fallback:` route on the node to route on failure, \
+             or fix the underlying error."
+        ),
     }
 }
 
@@ -445,23 +455,29 @@ mod tests {
     #[test]
     fn outcome_from_success_is_continue() {
         assert_eq!(
-            outcome_from(false, Some("fb")),
+            outcome_from(None, Some("fb")).unwrap(),
+            LlmExecutionOutcome::Continue
+        );
+        assert_eq!(
+            outcome_from(None, None).unwrap(),
             LlmExecutionOutcome::Continue
         );
-        assert_eq!(outcome_from(false, None), LlmExecutionOutcome::Continue);
     }
 
     #[test]
     fn outcome_from_failure_with_fallback_is_fell_back() {
         assert_eq!(
-            outcome_from(true, Some("fb")),
+            outcome_from(Some("HTTP 404"), Some("fb")).unwrap(),
             LlmExecutionOutcome::FellBack("fb".to_string())
         );
     }
 
     #[test]
-    fn outcome_from_failure_without_fallback_is_continue() {
-        assert_eq!(outcome_from(true, None), LlmExecutionOutcome::Continue);
+    fn outcome_from_failure_without_fallback_propagates_error() {
+        let err = outcome_from(Some("HTTP 404"), None).unwrap_err();
+        let msg = format!("{err:#}");
+        assert!(msg.contains("no fallback declared"), "got: {msg}");
+        assert!(msg.contains("HTTP 404"), "got: {msg}");
     }
 
     fn node_with_schema(updates: Option<HashMap<String, String>>, schema: Value) -> LlmNode {