diff --git a/.github/workflows/hotpath-comment.yml b/.github/workflows/hotpath-comment.yml
index 2fd3ca9..e1ed5df 100644
--- a/.github/workflows/hotpath-comment.yml
+++ b/.github/workflows/hotpath-comment.yml
@@ -14,49 +14,31 @@ jobs:
   comment:
     runs-on: ubuntu-latest
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
-
     steps:
-      - name: Checkout
-        uses: actions/checkout@v6
+      - uses: actions/checkout@v4
 
-      - name: Download profiling results
-        uses: actions/download-artifact@v8
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - uses: actions/download-artifact@v4
         with:
-          name: hotpath-results
-          path: /tmp/
+          name: profile-metrics
+          path: /tmp/metrics/
           github-token: ${{ secrets.GITHUB_TOKEN }}
           run-id: ${{ github.event.workflow_run.id }}
 
-      - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1
+      - name: Install hotpath-utils CLI
+        run: cargo install hotpath --bin hotpath-utils --features=utils
 
-      - name: Install hotpath CLI
-        run: cargo install hotpath
-
-      - name: Post timing comparison comment
+      - name: Post PR comment
         env:
           GH_TOKEN: ${{ github.token }}
         run: |
           set -euo pipefail
-          HEAD_METRICS=$(cat /tmp/head_timing.json)
-          BASE_METRICS=$(cat /tmp/base_timing.json)
-          PR_NUMBER=$(cat /tmp/pr_number.txt)
-          hotpath profile-pr \
-            --head-metrics "$HEAD_METRICS" \
-            --base-metrics "$BASE_METRICS" \
+          export GITHUB_BASE_REF=$(cat /tmp/metrics/base_ref.txt)
+          export GITHUB_HEAD_REF=$(cat /tmp/metrics/head_ref.txt)
+          hotpath-utils profile-pr \
+            --head-metrics /tmp/metrics/head_timing.json \
+            --base-metrics /tmp/metrics/base_timing.json \
             --github-token "$GH_TOKEN" \
-            --pr-number "$PR_NUMBER"
-
-      - name: Post allocation comparison comment
-        env:
-          GH_TOKEN: ${{ github.token }}
-        run: |
-          set -euo pipefail
-          HEAD_METRICS=$(cat /tmp/head_alloc.json)
-          BASE_METRICS=$(cat /tmp/base_alloc.json)
-          PR_NUMBER=$(cat /tmp/pr_number.txt)
-          hotpath profile-pr \
-            --head-metrics "$HEAD_METRICS" \
-            --base-metrics "$BASE_METRICS" \
-            --github-token "$GH_TOKEN" \
-            --pr-number "$PR_NUMBER"
+            --pr-number "$(cat /tmp/metrics/pr_number.txt)" \
+            --benchmark-id "timing"
diff --git a/.github/workflows/hotpath-profile.yml b/.github/workflows/hotpath-profile.yml
index 5fa1026..244fb2b 100644
--- a/.github/workflows/hotpath-profile.yml
+++ b/.github/workflows/hotpath-profile.yml
@@ -4,62 +4,57 @@ on:
   pull_request:
     branches: [ "main" ]
 
-env:
-  CARGO_TERM_COLOR: always
+permissions:
+  contents: read
 
 jobs:
   profile:
     runs-on: ubuntu-latest
-    
     steps:
-      - name: Checkout PR HEAD
-        uses: actions/checkout@v6
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      
-      - name: Setup Rust
-        uses: actions-rust-lang/setup-rust-toolchain@v1
-      
-      - name: Run timing profiling on HEAD
+
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - name: Create metrics directory
+        run: mkdir -p /tmp/metrics
+
+      - name: Head benchmark (timing)
         env:
-          HOTPATH_JSON: "true"
-        run: |
-          cargo run --features='hotpath' 2>&1 | grep '^{"hotpath_profiling_mode"' > /tmp/head_timing.json
-      
-      - name: Run allocation profiling on HEAD
+          HOTPATH_OUTPUT_FORMAT: json
+          HOTPATH_OUTPUT_PATH: /tmp/metrics/head_timing.json
+        run: cargo run -p microfetch --release --features='hotpath'
+
+      - name: Head benchmark (alloc)
         env:
-          HOTPATH_JSON: "true"
-        run: |
-          cargo run --features='hotpath,hotpath-alloc' 2>&1 | grep '^{"hotpath_profiling_mode"' > /tmp/head_alloc.json
-      
-      - name: Checkout base branch
-        run: |
-          git checkout ${{ github.event.pull_request.base.sha }}
-      
-      - name: Run timing profiling on base
+          HOTPATH_OUTPUT_FORMAT: json
+          HOTPATH_OUTPUT_PATH: /tmp/metrics/head_alloc.json
+        run: cargo run -p microfetch --release --features='hotpath,hotpath-alloc'
+
+      - name: Checkout base
+        run: git checkout ${{ github.event.pull_request.base.sha }}
+
+      - name: Base benchmark (timing)
         env:
-          HOTPATH_JSON: "true"
-        run: |
-          cargo run --features='hotpath' 2>&1 | grep '^{"hotpath_profiling_mode"' > /tmp/base_timing.json || echo '{}' > /tmp/base_timing.json
-      
-      - name: Run allocation profiling on base
+          HOTPATH_OUTPUT_FORMAT: json
+          HOTPATH_OUTPUT_PATH: /tmp/metrics/base_timing.json
+        run: cargo run -p microfetch --release --features='hotpath' || echo '{}' > /tmp/metrics/base_timing.json
+
+      - name: Base benchmark (alloc)
         env:
-          HOTPATH_JSON: "true"
+          HOTPATH_OUTPUT_FORMAT: json
+          HOTPATH_OUTPUT_PATH: /tmp/metrics/base_alloc.json
+        run: cargo run -p microfetch --release --features='hotpath,hotpath-alloc' || echo '{}' > /tmp/metrics/base_alloc.json
+
+      - name: Save PR metadata
         run: |
-          cargo run --features='hotpath,hotpath-alloc' 2>&1 | grep '^{"hotpath_profiling_mode"' > /tmp/base_alloc.json || echo '{}' > /tmp/base_alloc.json
-      
-      - name: Save PR number
-        run: |
-          echo '${{ github.event.pull_request.number }}' > /tmp/pr_number.txt
-      
-      - name: Upload profiling results
-        uses: actions/upload-artifact@v7
+          echo '${{ github.event.pull_request.number }}' > /tmp/metrics/pr_number.txt
+          echo '${{ github.base_ref }}' > /tmp/metrics/base_ref.txt
+          echo '${{ github.head_ref }}' > /tmp/metrics/head_ref.txt
+
+      - uses: actions/upload-artifact@v4
         with:
-          name: hotpath-results
-          path: |
-            /tmp/head_timing.json
-            /tmp/head_alloc.json
-            /tmp/base_timing.json
-            /tmp/base_alloc.json
-            /tmp/pr_number.txt
+          name: profile-metrics
+          path: /tmp/metrics/
           retention-days: 1