diff --git a/AGENTS.md b/AGENTS.md
index b589d9d..7f9e7ae 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -448,3 +448,17 @@ confirmation segments do not mutate it, and adaptive runs fail unless confirmati
 - [x] Update manual probe contract tests for calibrate-then-confirm behavior.
 - [x] Run shell syntax checks, focused contract tests, and package checks.
 - [x] Push clean semver `0.17.21` for installed client/server testing.
+
+## 0.17.22 Adaptive Calibration Export Fix Checklist
+
+Context: the 0.17.21 run proved the calibrate-then-confirm shape worked, but no calibration
+was actually applied. The calibration decision printed usable provisional recommendations, then
+reported `provisional_calibration_enabled=false` and left the active offset unchanged. Root cause:
+the Bash defaults were shell variables, while the embedded Python decision helper reads environment
+variables via `os.environ`.
+
+- [x] Treat the 0.17.21 run as confirmation that the probe shape works but calibration was disabled by script plumbing.
+- [x] Export adaptive/provisional/raw-failure/confirmation knobs after defaulting them.
+- [x] Add contract coverage so provisional calibration defaults cannot silently stop reaching the Python decision helper.
+- [x] Run shell syntax checks, focused contract tests, and package checks.
+- [x] Push clean semver `0.17.22` for installed client/server testing.
diff --git a/Cargo.lock b/Cargo.lock
index 5aa65b0..5195c52 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1652,7 +1652,7 @@ checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
 
 [[package]]
 name = "lesavka_client"
-version = "0.17.21"
+version = "0.17.22"
 dependencies = [
  "anyhow",
  "async-stream",
@@ -1686,7 +1686,7 @@ dependencies = [
 
 [[package]]
 name = "lesavka_common"
-version = "0.17.21"
+version = "0.17.22"
 dependencies = [
  "anyhow",
  "base64",
@@ -1698,7 +1698,7 @@ dependencies = [
 
 [[package]]
 name = "lesavka_server"
-version = "0.17.21"
+version = "0.17.22"
 dependencies = [
  "anyhow",
  "base64",
diff --git a/client/Cargo.toml b/client/Cargo.toml
index 7bf7b6c..18d2271 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -4,7 +4,7 @@ path                    = "src/main.rs"
 
 [package]
 name                    = "lesavka_client"
-version                 = "0.17.21"
+version                 = "0.17.22"
 edition                 = "2024"
 
 [dependencies]
diff --git a/common/Cargo.toml b/common/Cargo.toml
index 00b6a18..1411c45 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name                    = "lesavka_common"
-version                 = "0.17.21"
+version                 = "0.17.22"
 edition                 = "2024"
 build                   = "build.rs"
 
diff --git a/scripts/manual/run_upstream_mirrored_av_sync.sh b/scripts/manual/run_upstream_mirrored_av_sync.sh
index 31d36aa..e903596 100755
--- a/scripts/manual/run_upstream_mirrored_av_sync.sh
+++ b/scripts/manual/run_upstream_mirrored_av_sync.sh
@@ -79,6 +79,18 @@ if ! [[ "${LESAVKA_SYNC_CONFIRMATION_SEGMENTS}" =~ ^[0-9]+$ ]]; then
   exit 2
 fi
 LESAVKA_SYNC_TOTAL_SEGMENTS=$((LESAVKA_SYNC_CALIBRATION_SEGMENTS + LESAVKA_SYNC_CONFIRMATION_SEGMENTS))
+export LESAVKA_SYNC_ADAPTIVE_CALIBRATION
+export LESAVKA_SYNC_PROVISIONAL_CALIBRATION
+export LESAVKA_SYNC_PROVISIONAL_MIN_PAIRS
+export LESAVKA_SYNC_PROVISIONAL_MAX_P95_MS
+export LESAVKA_SYNC_PROVISIONAL_MAX_DRIFT_MS
+export LESAVKA_SYNC_PROVISIONAL_GAIN
+export LESAVKA_SYNC_PROVISIONAL_MAX_STEP_US
+export LESAVKA_SYNC_RAW_FAILURE_CALIBRATION
+export LESAVKA_SYNC_RAW_FAILURE_MAX_ABS_DELTA_MS
+export LESAVKA_SYNC_CONFIRM_AFTER_CALIBRATION
+export LESAVKA_SYNC_CONFIRMATION_SEGMENTS
+export LESAVKA_SYNC_REQUIRE_CONFIRMATION_PASS
 
 cleanup() {
   set +e
diff --git a/server/Cargo.toml b/server/Cargo.toml
index d551b27..d640d79 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -10,7 +10,7 @@ bench                   = false
 
 [package]
 name                    = "lesavka_server"
-version                 = "0.17.21"
+version                 = "0.17.22"
 edition                 = "2024"
 autobins                = false
 
diff --git a/testing/tests/client_manual_sync_script_contract.rs b/testing/tests/client_manual_sync_script_contract.rs
index 68c6fd8..63fe547 100644
--- a/testing/tests/client_manual_sync_script_contract.rs
+++ b/testing/tests/client_manual_sync_script_contract.rs
@@ -140,6 +140,8 @@ fn mirrored_sync_script_uses_real_client_capture_path() {
         "LESAVKA_SYNC_REQUIRE_CONFIRMATION_PASS=${LESAVKA_SYNC_REQUIRE_CONFIRMATION_PASS:-${LESAVKA_SYNC_CONFIRM_AFTER_CALIBRATION}}",
         "LESAVKA_SYNC_CONFIRMATION_SEGMENTS must be a non-negative integer",
         "LESAVKA_SYNC_TOTAL_SEGMENTS=$((LESAVKA_SYNC_CALIBRATION_SEGMENTS + LESAVKA_SYNC_CONFIRMATION_SEGMENTS))",
+        "export LESAVKA_SYNC_PROVISIONAL_CALIBRATION",
+        "export LESAVKA_SYNC_RAW_FAILURE_CALIBRATION",
         "LESAVKA_SYNC_ADAPTIVE_CALIBRATION",
         "LESAVKA_SYNC_CALIBRATION_SEGMENTS=4",
         "browser_consumer_reuse_session=${reuse_browser_session}",