diff --git a/zebrad/src/components/mempool.rs b/zebrad/src/components/mempool.rs
index d6c52b49f..efdeee756 100644
--- a/zebrad/src/components/mempool.rs
+++ b/zebrad/src/components/mempool.rs
@@ -1,4 +1,22 @@
 //! Zebra mempool.
+//!
+//! A zebrad application component that manages the active collection, reception,
+//! gossip, verification, in-memory storage, eviction, and rejection of unmined Zcash
+//! transactions (those that have not been confirmed in a mined block on the
+//! blockchain).
+//!
+//! Major parts of the mempool include:
+//!  * [Mempool Service][`Mempool`]
+//!    * activates when the syncer is near the chain tip
+//!    * spawns [download and verify tasks][`downloads::Downloads`] for each crawled or gossiped transaction
+//!    * handles in-memory [storage][`storage::Storage`] of unmined transactions
+//!  * [Crawler][`crawler::Crawler`]
+//!    * runs in the background to periodically poll peers for fresh unmined transactions
+//!  * [Queue Checker][`queue_checker::QueueChecker`]
+//!    * runs in the background, polling the mempool to store newly verified transactions
+//!  * [Transaction Gossip Task][`gossip::gossip_mempool_transaction_id`]
+//!    * runs in the background and gossips newly added mempool transactions
+//!      to peers
 
 use std::{
     collections::HashSet,
@@ -107,7 +125,7 @@ pub enum Request {
     /// because the mempool service is wrapped in a `Buffer`.
     /// Calling [`Buffer::poll_ready`] reserves a buffer slot, which can cause hangs when
     /// too many slots are reserved but unused:
-    /// https://docs.rs/tower/0.4.10/tower/buffer/struct.Buffer.html#a-note-on-choosing-a-bound
+    /// <https://docs.rs/tower/0.4.10/tower/buffer/struct.Buffer.html#a-note-on-choosing-a-bound>
     CheckForVerifiedTransactions,
 }
 
diff --git a/zebrad/src/components/mempool/config.rs b/zebrad/src/components/mempool/config.rs
index fbb7f9375..c1afa2805 100644
--- a/zebrad/src/components/mempool/config.rs
+++ b/zebrad/src/components/mempool/config.rs
@@ -39,7 +39,7 @@ pub struct Config {
     ///
     /// This corresponds to `mempoolevictionmemoryminutes` from
     /// [ZIP-401](https://zips.z.cash/zip-0401#specification).
-    //
+    ///
     // Note: Durations become a TOML table, so they must be the final item in the config
     //       We'll replace them with a more user-friendly format in #2847
     pub eviction_memory_time: Duration,
@@ -48,15 +48,15 @@ pub struct Config {
 impl Default for Config {
     fn default() -> Self {
         Self {
-            /// Consensus rules:
-            ///
-            /// > There MUST be a configuration option mempooltxcostlimit,
-            /// > which SHOULD default to 80000000.
-            /// >
-            /// > There MUST be a configuration option mempoolevictionmemoryminutes,
-            /// > which SHOULD default to 60 [minutes].
-            ///
-            /// https://zips.z.cash/zip-0401#specification
+            // [ZIP-401] Consensus rules:
+            //
+            // > There MUST be a configuration option mempooltxcostlimit,
+            // > which SHOULD default to 80000000.
+            // >
+            // > There MUST be a configuration option mempoolevictionmemoryminutes,
+            // > which SHOULD default to 60 [minutes].
+            //
+            // [ZIP-401]: https://zips.z.cash/zip-0401#specification
             tx_cost_limit: 80_000_000,
             eviction_memory_time: Duration::from_secs(60 * 60),
 
diff --git a/zebrad/src/components/mempool/downloads.rs b/zebrad/src/components/mempool/downloads.rs
index a659a8166..7d893d4fb 100644
--- a/zebrad/src/components/mempool/downloads.rs
+++ b/zebrad/src/components/mempool/downloads.rs
@@ -63,7 +63,7 @@ pub(crate) const TRANSACTION_DOWNLOAD_TIMEOUT: Duration = BLOCK_DOWNLOAD_TIMEOUT
 /// consistency.
 ///
 /// This timeout may lead to denial of service, which will be handled in
-/// https://github.com/ZcashFoundation/zebra/issues/2694
+/// [#2694](https://github.com/ZcashFoundation/zebra/issues/2694)
 pub(crate) const TRANSACTION_VERIFY_TIMEOUT: Duration = BLOCK_VERIFY_TIMEOUT;
 
 /// The maximum number of concurrent inbound download and verify tasks.