diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 7dcce7c..d727cd0 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -5,6 +5,11 @@
 Release Notes
 =============
 
+0.6.0
+-----
+
+* **New:** Filter ``pkgcheck`` results by keyword or message.
+
 0.5.0
 -----
 
diff --git a/find_work/__main__.py b/find_work/__main__.py
index d2f488b..84d4795 100644
--- a/find_work/__main__.py
+++ b/find_work/__main__.py
@@ -84,15 +84,22 @@ def pgo(options: Options) -> None:
 
 
 @cli.group(aliases=["chk", "c"], cls=ClickAliasedGroup)
+@click.option("-M", "--message", metavar="LIST",
+              help="Warning message to search for.")
+@click.option("-k", "--keywords", metavar="LIST",
+              help="Keywords to scan for.")
 @click.option("-r", "--repo", metavar="REPO", required=True,
               help="Repository name or absolute path.")
 @click.pass_obj
-def pkgcheck(options: Options, repo: str) -> None:
+def pkgcheck(options: Options, message: str | None, keywords: str | None,
+             repo: str) -> None:
     """ Use pkgcheck to find work. """
 
     options.cache_key.feed("pkgcheck")
 
     options.pkgcheck.repo = repo
+    options.pkgcheck.keywords = (keywords or "").split(",")
+    options.pkgcheck.message = message or ""
 
     for key in options.pkgcheck.cache_order:
         options.cache_key.feed_option(key, options.pkgcheck[key])
diff --git a/find_work/cache.py b/find_work/cache.py
index 5149741..d556af0 100644
--- a/find_work/cache.py
+++ b/find_work/cache.py
@@ -31,12 +31,14 @@ class CacheKey:
     True
     >>> key.feed_option("flag", True)
     True
+    >>> key.feed_option("keywords", ["wow", "amazing"])
+    True
     >>> bytes(key)
-    b'bytes\\x00string\\x00count:42\\x00flag:1\\x00'
-    >>> key.feed([1, 2, 3])
+    b'bytes\\x00string\\x00count:42\\x00flag:1\\x00keywords:amazing\\x19wow\\x00'
+    >>> key.feed({1, 2, 3})
     Traceback (most recent call last):
         ...
-    TypeError: Unsupported type: list
+    TypeError: Unsupported type: set
     """
 
     data: bytes = b""
@@ -52,6 +54,8 @@ class CacheKey:
                 return value
             case str():
                 return value.encode()
+            case list():
+                return b"\31".join(map(cls._encode, sorted(value)))
             case bool():
                 return b"1" if value else b"0"
             case int():
@@ -62,7 +66,7 @@ class CacheKey:
     @classmethod
     def _feedable(cls, value: Any) -> bool:
         match value:
-            case bytes() | str():
+            case bytes() | str() | list():
                 return bool(value)
             case bool() | int():
                 return True
diff --git a/find_work/cli/__init__.py b/find_work/cli/__init__.py
index e204737..d10cc21 100644
--- a/find_work/cli/__init__.py
+++ b/find_work/cli/__init__.py
@@ -101,9 +101,15 @@ class PkgcheckOptions(ModuleOptionsBase):
     # Repository name or absolute path.
     repo: str = ""
 
+    # Class of the pkgcheck warning, e.g. DeprecatedEapi
+    keywords: list[str] = field(default_factory=list)
+
+    # Message of the pkgcheck warning, e.g. 'uses deprecated EAPI 5'
+    message: str = ""
+
     @cached_property
     def cache_order(self) -> list[str]:
-        return ["repo"]
+        return ["repo", "keywords", "message"]
 
 
 @dataclass
diff --git a/find_work/cli/pkgcheck.py b/find_work/cli/pkgcheck.py
index 8f6e45f..4733c6c 100644
--- a/find_work/cli/pkgcheck.py
+++ b/find_work/cli/pkgcheck.py
@@ -10,7 +10,6 @@ import pkgcheck
 from sortedcontainers import SortedDict, SortedSet
 
 from find_work.cli import Message, Options, ProgressDots
-from find_work.constants import PKGCHECK_MIN_PACKAGE_SCOPE
 
 
 def _do_scan(options: Options) -> SortedDict[str, SortedSet]:
@@ -20,12 +19,16 @@ def _do_scan(options: Options) -> SortedDict[str, SortedSet]:
             repo_obj = pm.repositories[options.pkgcheck.repo]
 
     cli_opts = [
-        "-r", options.pkgcheck.repo,
-        "-f", "latest",  # TODO: become version-aware
+        "--repo", options.pkgcheck.repo,
+        "--scope", "pkg,ver",
+        "--filter", "latest",  # TODO: become version-aware
     ]
+    if options.pkgcheck.keywords:
+        cli_opts += ["--keywords", ",".join(options.pkgcheck.keywords)]
+
     data: SortedDict[str, SortedSet] = SortedDict()
     for result in pkgcheck.scan(cli_opts):
-        if result.scope.level < PKGCHECK_MIN_PACKAGE_SCOPE:
+        if options.pkgcheck.message not in result.desc:
             continue
 
         package = "/".join([result.category, result.package])
diff --git a/find_work/constants.py b/find_work/constants.py
index 5c83db2..d322bb6 100644
--- a/find_work/constants.py
+++ b/find_work/constants.py
@@ -30,6 +30,3 @@ PGO_BASE_URL = "https://packages.gentoo.org"
 
 # Gentoo Packages API location.
 PGO_API_URL = f"{PGO_BASE_URL}/api/graphql/"
-
-# Scope level for `pkgcheck.base.package_scope`.
-PKGCHECK_MIN_PACKAGE_SCOPE = 3
diff --git a/man/find-work.1 b/man/find-work.1
index c171160..e3f5fef 100644
--- a/man/find-work.1
+++ b/man/find-work.1
@@ -93,6 +93,8 @@ Find stabilization candidates.
 .It Xo
 .Cm pkgcheck
 .Fl r Ar repo
+.Op Fl M Ar text
+.Op Fl k Ar keyword
 .Ar command
 .Xc
 .Dl Pq alias: Cm chk , Cm c
@@ -109,8 +111,14 @@ The options for
 .Cm find-work pkgcheck
 are as follows:
 .Bl -tag -width Ds
+.It Fl M Ar text , Fl -message Ar text
+Message of the pkgcheck warning, e.g.
+.Qq uses deprecated EAPI 5 .
+.It Fl k Ar keyword , Fl -keywords Ar keyword
+Comma-separated list of pkgcheck keywords, e.g. DeprecatedEapi.
 .It Fl r Ar repo , Fl -repo Ar repo
 Repository name or absolute path.
+This option is required.
 .El
 .
 .It Xo
@@ -139,13 +147,13 @@ This option is required.
 Some examples for Gentoo include:
 .Bl -bullet -compact -width 1n
 .It
-.Ql gentoo
+.Qq gentoo
 .It
-.Ql gentoo_ovl_guru
+.Qq gentoo_ovl_guru
 .It
-.Ql gentoo_ovl_pentoo
+.Qq gentoo_ovl_pentoo
 .It
-.Ql gentoo_ovl_science
+.Qq gentoo_ovl_science
 .El
 .El
 .El