diff --git a/codex-rs/memories/write/src/lib.rs b/codex-rs/memories/write/src/lib.rs
index c92d5b652490..63f156571013 100644
--- a/codex-rs/memories/write/src/lib.rs
+++ b/codex-rs/memories/write/src/lib.rs
@@ -7,6 +7,7 @@
 mod control;
 mod extensions;
 mod guard;
+mod metrics;
 mod phase1;
 mod phase2;
 mod prompts;
diff --git a/codex-rs/memories/write/src/metrics.rs b/codex-rs/memories/write/src/metrics.rs
new file mode 100644
index 000000000000..caa77565dbb1
--- /dev/null
+++ b/codex-rs/memories/write/src/metrics.rs
@@ -0,0 +1,11 @@
+pub(crate) const MEMORY_STARTUP: &str = "codex.memory.startup";
+
+pub(crate) const MEMORY_PHASE_ONE_JOBS: &str = "codex.memory.phase1";
+pub(crate) const MEMORY_PHASE_ONE_E2E_MS: &str = "codex.memory.phase1.e2e_ms";
+pub(crate) const MEMORY_PHASE_ONE_OUTPUT: &str = "codex.memory.phase1.output";
+pub(crate) const MEMORY_PHASE_ONE_TOKEN_USAGE: &str = "codex.memory.phase1.token_usage";
+
+pub(crate) const MEMORY_PHASE_TWO_JOBS: &str = "codex.memory.phase2";
+pub(crate) const MEMORY_PHASE_TWO_E2E_MS: &str = "codex.memory.phase2.e2e_ms";
+pub(crate) const MEMORY_PHASE_TWO_INPUT: &str = "codex.memory.phase2.input";
+pub(crate) const MEMORY_PHASE_TWO_TOKEN_USAGE: &str = "codex.memory.phase2.token_usage";
diff --git a/codex-rs/memories/write/src/phase1.rs b/codex-rs/memories/write/src/phase1.rs
index 120ff870b107..a3a85b8e8b19 100644
--- a/codex-rs/memories/write/src/phase1.rs
+++ b/codex-rs/memories/write/src/phase1.rs
@@ -1,5 +1,9 @@
 use crate::STAGE_ONE_PROMPT;
 use crate::build_stage_one_input_message;
+use crate::metrics::MEMORY_PHASE_ONE_E2E_MS;
+use crate::metrics::MEMORY_PHASE_ONE_JOBS;
+use crate::metrics::MEMORY_PHASE_ONE_OUTPUT;
+use crate::metrics::MEMORY_PHASE_ONE_TOKEN_USAGE;
 use crate::runtime::MemoryStartupContext;
 use crate::runtime::StageOneRequestContext;
 use codex_config::types::MemoriesConfig;
@@ -32,10 +36,6 @@ const JOB_LEASE_SECONDS: i64 = 3_600;
 const JOB_RETRY_DELAY_SECONDS: i64 = 3_600;
 const THREAD_SCAN_LIMIT: usize = 5_000;
 const PRUNE_BATCH_SIZE: usize = 200;
-const MEMORY_PHASE_ONE_JOBS: &str = "codex.memory.phase1";
-const MEMORY_PHASE_ONE_E2E_MS: &str = "codex.memory.phase1.e2e_ms";
-const MEMORY_PHASE_ONE_OUTPUT: &str = "codex.memory.phase1.output";
-const MEMORY_PHASE_ONE_TOKEN_USAGE: &str = "codex.memory.phase1.token_usage";
 
 struct JobResult {
     outcome: JobOutcome,
diff --git a/codex-rs/memories/write/src/phase2.rs b/codex-rs/memories/write/src/phase2.rs
index 2d092abfb25d..14954c49e4ef 100644
--- a/codex-rs/memories/write/src/phase2.rs
+++ b/codex-rs/memories/write/src/phase2.rs
@@ -1,5 +1,9 @@
 use crate::build_consolidation_prompt;
 use crate::memory_root;
+use crate::metrics::MEMORY_PHASE_TWO_E2E_MS;
+use crate::metrics::MEMORY_PHASE_TWO_INPUT;
+use crate::metrics::MEMORY_PHASE_TWO_JOBS;
+use crate::metrics::MEMORY_PHASE_TWO_TOKEN_USAGE;
 use crate::prune_old_extension_resources;
 use crate::rebuild_raw_memories_file_from_memories;
 use crate::runtime::MemoryStartupContext;
@@ -30,10 +34,6 @@ const REASONING_EFFORT: codex_protocol::openai_models::ReasoningEffort =
 const JOB_LEASE_SECONDS: i64 = 3_600;
 const JOB_RETRY_DELAY_SECONDS: i64 = 3_600;
 const JOB_HEARTBEAT_SECONDS: u64 = 90;
-const MEMORY_PHASE_TWO_JOBS: &str = "codex.memory.phase2";
-const MEMORY_PHASE_TWO_E2E_MS: &str = "codex.memory.phase2.e2e_ms";
-const MEMORY_PHASE_TWO_INPUT: &str = "codex.memory.phase2.input";
-const MEMORY_PHASE_TWO_TOKEN_USAGE: &str = "codex.memory.phase2.token_usage";
 
 #[derive(Debug, Clone, Default)]
 struct Claim {
diff --git a/codex-rs/memories/write/src/start.rs b/codex-rs/memories/write/src/start.rs
index 0ad8b2730179..f7bf11e6f6a0 100644
--- a/codex-rs/memories/write/src/start.rs
+++ b/codex-rs/memories/write/src/start.rs
@@ -1,4 +1,5 @@
 use crate::guard;
+use crate::metrics::MEMORY_STARTUP;
 use crate::phase1;
 use crate::phase2;
 use crate::runtime::MemoryStartupContext;
@@ -12,8 +13,6 @@ use codex_protocol::protocol::SessionSource;
 use std::sync::Arc;
 use tracing::warn;
 
-const MEMORY_STARTUP: &str = "codex.memory.startup";
-
 /// Starts the asynchronous startup memory pipeline for an eligible root session.
 ///
 /// The pipeline is skipped for ephemeral sessions, disabled feature flags, and