diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 791d8e5..6814678 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with: { python-version: "3.12" }
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
       - name: Install locked dependencies, then the package itself
@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with: { node-version: "22" }
@@ -89,7 +89,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable, components: "clippy, rustfmt" }
       - run: cargo fmt --all --check
         working-directory: sdk/rust
@@ -102,7 +102,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - name: Build ffi cdylib
         run: cargo build --locked -p agent-hooks-ffi --release
@@ -125,7 +125,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - name: Build ffi cdylib
         run: cargo build --locked -p agent-hooks-ffi --release
@@ -154,7 +154,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - run: cargo test --locked --workspace --all-features
         working-directory: sdk/rust
@@ -167,7 +167,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - name: Build ffi cdylib
         run: cargo build --locked -p agent-hooks-ffi --release
@@ -215,7 +215,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: taiki-e/install-action@18b1216eba7f8039b0f8d131d5473787f0edce68 # v2.85.3
+      - uses: taiki-e/install-action@cb33e69fad06166ca28a42b2575e4dadabf62ee8 # v2.85.8
         with:
           tool: cargo-deny@0.20.2
       - name: cargo deny (all three cargo roots)
@@ -236,7 +236,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
       - uses: actions/setup-python@5fda3b95a4ea91299a34e894583c3862153e4b97 # v7.0.0
         with: { python-version: "3.12" }
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - uses: astral-sh/setup-uv@c771a70e6277c0a99b617c7a806ffedaca235ff9 # v9.0.0
       - name: Install and test
@@ -256,7 +256,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - uses: actions/setup-node@820762786026740c76f36085b0efc47a31fe5020 # v7.0.0
         with: { node-version: "22" }
@@ -292,7 +292,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with:
           toolchain: stable
           targets: ${{ matrix.target }}
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 7e10a5c..c6c230b 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -44,13 +44,13 @@ jobs:
         uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7.0.0
         with: { go-version: "1.22" }
       - if: matrix.language == 'go'
-        uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master
+        uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master
         with: { toolchain: stable }
       - if: matrix.language == 'go'
         name: Build ffi cdylib (cgo dependency)
         run: cargo build --locked -p agent-hooks-ffi --release
         working-directory: sdk/rust
-      - uses: github/codeql-action/init@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
+      - uses: github/codeql-action/init@5595ccaf912efad79be6eef63a5619ff05969be3 # v4.37.6
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -60,6 +60,6 @@ jobs:
         run: |
           cd sdk/go/agenthooks && go build ./...
           cd ../conformance && go build ./...
-      - uses: github/codeql-action/analyze@e4fba868fa4b1b91e1fdab776edc8cfbe6e9fb81 # v4.37.3
+      - uses: github/codeql-action/analyze@5595ccaf912efad79be6eef63a5619ff05969be3 # v4.37.6
         with:
           category: "/language:${{ matrix.language }}"
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 2d7aa95..0dfa149 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -159,7 +159,7 @@ jobs:
           subject-path: dist/*
       - name: Publish to PyPI (trusted publishing)
         if: env.DRY_RUN != 'true'
-        uses: pypa/gh-action-pypi-publish@ba38be9e461d3875417946c167d0b5f3d385a247 # v1
+        uses: pypa/gh-action-pypi-publish@dc37677b2e1c63e2034f94d8a5b11f265b73ba33 # v1
         with:
           packages-dir: dist
           skip-existing: true
@@ -175,7 +175,7 @@ jobs:
       attestations: write
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master; toolchain pinned via sdk/rust/rust-toolchain.toml
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master; toolchain pinned via sdk/rust/rust-toolchain.toml
         with: { toolchain: stable }
       - name: Package (verifies the publishable crate)
         run: cargo package --locked -p agent-hooks-sdk
@@ -223,7 +223,7 @@ jobs:
       contents: read
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master; toolchain pinned via sdk/rust/rust-toolchain.toml
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master; toolchain pinned via sdk/rust/rust-toolchain.toml
         with:
           toolchain: stable
           targets: ${{ matrix.target }}
@@ -343,7 +343,7 @@ jobs:
       contents: read
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master; toolchain pinned via sdk/rust/rust-toolchain.toml
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master; toolchain pinned via sdk/rust/rust-toolchain.toml
         with:
           toolchain: stable
           targets: ${{ matrix.target }}
@@ -427,7 +427,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: dtolnay/rust-toolchain@2c7215f132e9ebf062739d9130488b56d53c060c # master; toolchain pinned via sdk/rust/rust-toolchain.toml
+      - uses: dtolnay/rust-toolchain@6c977a6ca4077a0ceb28ffbe03f59d46e9ac8772 # master; toolchain pinned via sdk/rust/rust-toolchain.toml
         with: { toolchain: stable }
       - run: cargo build --locked -p agent-hooks-ffi --release
         working-directory: sdk/rust