diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index b9bbbab..a787ffd 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -95,8 +95,8 @@ jobs:
           test -f README.md || (echo "❌ Missing README.md" && exit 1)
           test -f CONTRIBUTING.md || (echo "❌ Missing CONTRIBUTING.md" && exit 1)
           test -f docs/getting-started.md || (echo "❌ Missing getting-started.md" && exit 1)
-          test -f docs/core-concepts.md || (echo "❌ Missing core-concepts.md" && exit 1)
-          test -f docs/usage-guide.md || (echo "❌ Missing usage-guide.md" && exit 1)
+          test -f docs/user-guide/core-concepts.md || (echo "❌ Missing user-guide/core-concepts.md" && exit 1)
+          test -f docs/user-guide/usage-guide.md || (echo "❌ Missing user-guide/usage-guide.md" && exit 1)
           test -f docs/security-guide.md || (echo "❌ Missing security-guide.md" && exit 1)
           echo "✓ All required documentation exists"
 
diff --git a/THIRD_PARTY_LICENSES.md b/THIRD_PARTY_LICENSES.md
index 2824816..236d8d7 100644
--- a/THIRD_PARTY_LICENSES.md
+++ b/THIRD_PARTY_LICENSES.md
@@ -76,4 +76,4 @@ This script:
 
 ---
 
-**Last generated**: 2026-03-05
+**Last generated**: 2026-03-07
diff --git a/docs/architecture/README.md b/docs/architecture/README.md
index 454928d..f1411b9 100644
--- a/docs/architecture/README.md
+++ b/docs/architecture/README.md
@@ -1,7 +1,8 @@
 # <img src="../images/archlette-stainedglassA-light.png" alt="" height="28" width="28" style="vertical-align:middle"> flarelette-jwt-kit
 
 **Architecture Documentation**
-Generated 2026-03-05 17:59:12
+
+Generated 2026-03-06 18:21:58
 
 ## Overview
 
diff --git a/docs/user-guide/core-concepts.md b/docs/user-guide/core-concepts.md
index 9bb7590..0c629ed 100644
--- a/docs/user-guide/core-concepts.md
+++ b/docs/user-guide/core-concepts.md
@@ -4,11 +4,20 @@ Understanding how Flarelette JWT Kit makes cryptographic and architectural decis
 
 ## Algorithm Selection
 
-The kit supports **HS512** (symmetric) and **EdDSA** (asymmetric) as its two primary signing algorithms, plus **ES512** (ECDSA P-521) for TypeScript explicit-API signing. Verification supports **EdDSA, ECDSA (ES256/ES384/ES512), and RSA** for external OIDC tokens. Mode is detected automatically from your environment.
+The kit supports **HS512** (symmetric) and **EdDSA** (asymmetric) via environment-driven mode detection, plus **ES512** (ECDSA P-521) via explicit API. Verification supports **EdDSA, ECDSA (ES256/ES384/ES512), and RSA** for external OIDC tokens.
 
-**Signing:** HS512 for symmetric trust, EdDSA for asymmetric trust. ES512 available via TypeScript explicit API.
+**Signing:** HS512 for simple symmetric trust, EdDSA for asymmetric trust, ES512 for explicit internal mesh profiles.
 
-**Verification:** HS512 and EdDSA for internal tokens; ECDSA and RSA for external OIDC providers.
+**Verification:** Internal tokens can use HS512, EdDSA, or ES512; external OIDC providers may use EdDSA, ECDSA, or RSA.
+
+## Configuration Sources
+
+Algorithm selection comes from one of two configuration sources:
+
+- **Environment variables** for auto-detected HS512/EdDSA flows (`envMode`).
+- **Explicit config objects** for deterministic algorithm selection across supported algorithms (including ES512 internal mesh profiles and external OIDC verification profiles).
+
+In practice: your deployment chooses the source (env or config object), and that source determines which algorithm is used.
 
 ### HS512 (Symmetric)
 
@@ -25,7 +34,7 @@ The kit supports **HS512** (symmetric) and **EdDSA** (asymmetric) as its two pri
 - ~256-bit security with 64-byte keys
 - Symmetric: same secret signs and verifies
 - Fast signing and verification
-- No key rotation complexity
+- Secret rotation requires coordinated rollout across producers and consumers
 
 **Environment detection:**
 
@@ -117,7 +126,7 @@ JWT_JWKS_CACHE_TTL_SECONDS=300  # Optional: default 5 minutes
 
 ## Mode Detection
 
-The kit automatically detects which algorithm to use based on environment variables. No manual configuration needed.
+The kit automatically detects which algorithm to use based on environment variables for HS512/EdDSA flows.
 
 **Detection logic:**