diff --git a/automod/cachestore/cachestore.go b/automod/cachestore/cachestore.go
new file mode 100644
index 000000000..593364403
--- /dev/null
+++ b/automod/cachestore/cachestore.go
@@ -0,0 +1,11 @@
+package cachestore
+
+import (
+	"context"
+)
+
+type CacheStore interface {
+	Get(ctx context.Context, name, key string) (string, error)
+	Set(ctx context.Context, name, key string, val string) error
+	Purge(ctx context.Context, name, key string) error
+}
diff --git a/automod/cachestore.go b/automod/cachestore/cachestore_mem.go
similarity index 76%
rename from automod/cachestore.go
rename to automod/cachestore/cachestore_mem.go
index 2c7c855ec..3592554e3 100644
--- a/automod/cachestore.go
+++ b/automod/cachestore/cachestore_mem.go
@@ -1,4 +1,4 @@
-package automod
+package cachestore
 
 import (
 	"context"
@@ -7,12 +7,6 @@ import (
 	"github.com/hashicorp/golang-lru/v2/expirable"
 )
 
-type CacheStore interface {
-	Get(ctx context.Context, name, key string) (string, error)
-	Set(ctx context.Context, name, key string, val string) error
-	Purge(ctx context.Context, name, key string) error
-}
-
 type MemCacheStore struct {
 	Data *expirable.LRU[string, string]
 }
diff --git a/automod/redis_cache.go b/automod/cachestore/cachestore_redis.go
similarity index 98%
rename from automod/redis_cache.go
rename to automod/cachestore/cachestore_redis.go
index f057ff11f..26b1aacbb 100644
--- a/automod/redis_cache.go
+++ b/automod/cachestore/cachestore_redis.go
@@ -1,4 +1,4 @@
-package automod
+package cachestore
 
 import (
 	"context"
diff --git a/automod/engine.go b/automod/engine.go
index 4b76548e5..b612e93bc 100644
--- a/automod/engine.go
+++ b/automod/engine.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/bluesky-social/indigo/atproto/identity"
 	"github.com/bluesky-social/indigo/atproto/syntax"
+	"github.com/bluesky-social/indigo/automod/cachestore"
 	"github.com/bluesky-social/indigo/automod/countstore"
 	"github.com/bluesky-social/indigo/automod/flagstore"
 	"github.com/bluesky-social/indigo/xrpc"
@@ -22,7 +23,7 @@ type Engine struct {
 	Rules       RuleSet
 	Counters    countstore.CountStore
 	Sets        SetStore
-	Cache       CacheStore
+	Cache       cachestore.CacheStore
 	Flags       flagstore.FlagStore
 	RelayClient *xrpc.Client
 	BskyClient  *xrpc.Client
diff --git a/automod/testing.go b/automod/testing.go
index 6551e46ce..901655072 100644
--- a/automod/testing.go
+++ b/automod/testing.go
@@ -11,6 +11,7 @@ import (
 	appbsky "github.com/bluesky-social/indigo/api/bsky"
 	"github.com/bluesky-social/indigo/atproto/identity"
 	"github.com/bluesky-social/indigo/atproto/syntax"
+	"github.com/bluesky-social/indigo/automod/cachestore"
 	"github.com/bluesky-social/indigo/automod/countstore"
 	"github.com/bluesky-social/indigo/automod/flagstore"
 )
@@ -42,7 +43,7 @@ func EngineTestFixture() Engine {
 			simpleRule,
 		},
 	}
-	cache := NewMemCacheStore(10, time.Hour)
+	cache := cachestore.NewMemCacheStore(10, time.Hour)
 	flags := flagstore.NewMemFlagStore()
 	sets := NewMemSetStore()
 	sets.Sets["bad-hashtags"] = make(map[string]bool)
diff --git a/cmd/hepa/server.go b/cmd/hepa/server.go
index dbab7058e..fbd88a04c 100644
--- a/cmd/hepa/server.go
+++ b/cmd/hepa/server.go
@@ -12,6 +12,7 @@ import (
 	comatproto "github.com/bluesky-social/indigo/api/atproto"
 	"github.com/bluesky-social/indigo/atproto/identity"
 	"github.com/bluesky-social/indigo/automod"
+	"github.com/bluesky-social/indigo/automod/cachestore"
 	"github.com/bluesky-social/indigo/automod/countstore"
 	"github.com/bluesky-social/indigo/automod/flagstore"
 	"github.com/bluesky-social/indigo/automod/rules"
@@ -89,7 +90,7 @@ func NewServer(dir identity.Directory, config Config) (*Server, error) {
 	}
 
 	var counters countstore.CountStore
-	var cache automod.CacheStore
+	var cache cachestore.CacheStore
 	var flags flagstore.FlagStore
 	var rdb *redis.Client
 	if config.RedisURL != "" {
@@ -111,7 +112,7 @@ func NewServer(dir identity.Directory, config Config) (*Server, error) {
 		}
 		counters = cnt
 
-		csh, err := automod.NewRedisCacheStore(config.RedisURL, 30*time.Minute)
+		csh, err := cachestore.NewRedisCacheStore(config.RedisURL, 30*time.Minute)
 		if err != nil {
 			return nil, fmt.Errorf("initializing redis cachestore: %v", err)
 		}
@@ -124,7 +125,7 @@ func NewServer(dir identity.Directory, config Config) (*Server, error) {
 		flags = flg
 	} else {
 		counters = countstore.NewMemCountStore()
-		cache = automod.NewMemCacheStore(5_000, 30*time.Minute)
+		cache = cachestore.NewMemCacheStore(5_000, 30*time.Minute)
 		flags = flagstore.NewMemFlagStore()
 	}