diff --git a/src/dvsim/flow/base.py b/src/dvsim/flow/base.py
index 4345a31b..497e8a42 100644
--- a/src/dvsim/flow/base.py
+++ b/src/dvsim/flow/base.py
@@ -32,7 +32,7 @@
     rm_path,
     subst_wildcards,
 )
-from dvsim.utils.git import git_commit_hash
+from dvsim.utils.git import git_commit_hash, git_is_dirty
 
 if TYPE_CHECKING:
     from dvsim.job.deploy import Deploy
@@ -173,6 +173,7 @@ def __init__(self, flow_cfg_file, hjson_data, args, mk_config) -> None:
         proj_root = Path(self.proj_root)
         self.commit = git_commit_hash(path=proj_root, short=False)
         self.commit_short = git_commit_hash(path=proj_root, short=True)
+        self.dirty = git_is_dirty(path=proj_root)
 
         # Construct the path variables after variable expansion.
         reports_dir = Path(self.scratch_base_path) / "reports"
diff --git a/src/dvsim/report/data.py b/src/dvsim/report/data.py
index 95ae6b20..e385d204 100644
--- a/src/dvsim/report/data.py
+++ b/src/dvsim/report/data.py
@@ -26,10 +26,13 @@ class IPMeta(BaseModel):
     """Git commit sha of the IP the tests are run against."""
     commit_short: str
     """Shortened Git commit sha of the IP the tests are run against."""
+    dirty: bool = False
+    """Whether the working tree had uncommitted changes at run time."""
     branch: str
     """Git branch"""
-    url: str
-    """URL to where the IP can be found in git (e.g. github)."""
+    url: str | None
+    """URL to where the IP can be found in git (e.g. github). None if the local
+    checkout has no ``origin`` remote (typical for developer clones)."""
     revision_info: str | None
     """Optional revision info string to use for custom info instead of the above fields."""
 
diff --git a/src/dvsim/sim/flow.py b/src/dvsim/sim/flow.py
index 8c8536b6..6dc400c4 100644
--- a/src/dvsim/sim/flow.py
+++ b/src/dvsim/sim/flow.py
@@ -607,6 +607,11 @@ def gen_results(self, results: Sequence[CompletedJobStatus]) -> None:
         repo_root = Path(self.proj_root)
         reports_dir = Path(self.scratch_base_path) / "reports"
         url = git_https_url_with_commit(path=repo_root)
+        if url is None:
+            log.debug(
+                "no 'origin' remote in %s — report will not include an upstream source link",
+                repo_root,
+            )
         build_seed = self.build_seed if not self.run_only else None
 
         try:
@@ -657,6 +662,7 @@ def gen_results(self, results: Sequence[CompletedJobStatus]) -> None:
                 variant=self.variant,
                 commit=self.commit,
                 commit_short=self.commit_short,
+                dirty=self.dirty,
                 branch=self.branch,
                 url=url,
                 revision_info=self.revision,
@@ -705,6 +711,7 @@ def _gen_json_results(
             variant=(self.variant or "").lower() or None,
             commit=self.commit,
             commit_short=self.commit_short,
+            dirty=self.dirty,
             branch=self.branch or "",
             url=url,
             revision_info=self.revision,
diff --git a/src/dvsim/sim/report.py b/src/dvsim/sim/report.py
index eba04395..bdda6311 100644
--- a/src/dvsim/sim/report.py
+++ b/src/dvsim/sim/report.py
@@ -243,7 +243,12 @@ def render_metadata(
 
         revision = (scope.revision_info or "").strip()
         if not revision:
-            revision = f"Github Revision: [`{scope.commit_short}`]({scope.url})"
+            if scope.url:
+                revision = f"Github Revision: [`{scope.commit_short}`]({scope.url})"
+            else:
+                revision = f"Revision: `{scope.commit_short}`"
+        if scope.dirty and "(dirty)" not in revision:
+            revision += " (dirty)"
         report_md += f"\n### {revision}"
         report_md += f"\n### Branch: {scope.branch}"
 
diff --git a/src/dvsim/utils/git.py b/src/dvsim/utils/git.py
index 996a17cf..ce537bdf 100644
--- a/src/dvsim/utils/git.py
+++ b/src/dvsim/utils/git.py
@@ -44,8 +44,19 @@ def git_commit_hash(path: Path | None = None, *, short: bool = False) -> str:
     return r.head.commit.hexsha
 
 
-def git_origin_url(path: Path | None = None) -> str:
-    """Get the git remote origin url."""
+def git_is_dirty(path: Path | None = None) -> bool:
+    """Return True if the working tree has uncommitted changes to tracked files."""
+    root = repo_root(path=path or Path.cwd())
+
+    if root is None:
+        log.error("no git repo found at %s", path)
+        raise ValueError
+
+    return Repo(root).is_dirty()
+
+
+def git_origin_url(path: Path | None = None) -> str | None:
+    """Get the git remote origin url, or None if no ``origin`` remote is configured."""
     root = repo_root(path=path or Path.cwd())
 
     if root is None:
@@ -54,20 +65,31 @@ def git_origin_url(path: Path | None = None) -> str:
 
     r = Repo(root)
 
-    return r.remote().url
+    if "origin" not in [remote.name for remote in r.remotes]:
+        return None
+
+    return r.remote("origin").url
 
 
-def git_https_url_with_commit(path: Path | None = None) -> str:
+def git_https_url_with_commit(path: Path | None = None) -> str | None:
     """Get an https url that references the current commit.
 
+    The link is derived from the ``origin`` remote, which in CI/regression
+    workflows points at the canonical upstream repository. In developer
+    checkouts where ``origin`` is absent or points elsewhere, return ``None``
+    rather than guessing — a wrong link is worse than none.
+
     Args:
         path: the path to the git repo
 
     Returns:
-        str containing the https url
+        str containing the https url, or None if no ``origin`` remote exists.
 
     """
     url = git_origin_url(path=path)
+    if url is None:
+        return None
+
     commit = git_commit_hash(path=path)
 
     url = url.removesuffix(".git")
diff --git a/tests/utils/test_git.py b/tests/utils/test_git.py
index 30e35689..06bde5ce 100644
--- a/tests/utils/test_git.py
+++ b/tests/utils/test_git.py
@@ -10,7 +10,13 @@
 from git import Repo
 from hamcrest import assert_that, calling, equal_to, raises
 
-from dvsim.utils.git import git_commit_hash, git_https_url_with_commit, git_origin_url, repo_root
+from dvsim.utils.git import (
+    git_commit_hash,
+    git_https_url_with_commit,
+    git_is_dirty,
+    git_origin_url,
+    repo_root,
+)
 
 __all__ = ()
 
@@ -73,11 +79,11 @@ def test_git_short_commit_hash(tmp_path: "Path") -> None:
         )
 
     @staticmethod
-    def test_git_origin_url(tmp_path: Path) -> None:
-        """Test that the expected git remote origin url is returned."""
+    def test_git_is_dirty(tmp_path: Path) -> None:
+        """Test that git_is_dirty reflects the working tree state."""
         # Value error if called outside a git repo
         assert_that(
-            calling(git_origin_url).with_args(tmp_path),
+            calling(git_is_dirty).with_args(tmp_path),
             raises(ValueError),
         )
 
@@ -88,12 +94,36 @@ def test_git_origin_url(tmp_path: Path) -> None:
         r.index.add([file])
         r.index.commit("initial commit")
 
+        # Clean tree
+        assert_that(git_is_dirty(tmp_path), equal_to(False))
+
+        # Modify a tracked file — now dirty
+        file.write_text("changed")
+        assert_that(git_is_dirty(tmp_path), equal_to(True))
+
+    @staticmethod
+    def test_git_origin_url(tmp_path: Path) -> None:
+        """Test that the expected git remote origin url is returned."""
         # Value error if called outside a git repo
         assert_that(
             calling(git_origin_url).with_args(tmp_path),
             raises(ValueError),
         )
 
+        r = Repo.init(path=tmp_path)
+
+        file = tmp_path / "a"
+        file.write_text("file to commit")
+        r.index.add([file])
+        r.index.commit("initial commit")
+
+        # None if the repo has no 'origin' remote configured
+        assert_that(git_origin_url(tmp_path), equal_to(None))
+
+        # Still None if there are remotes but none named 'origin'
+        r.create_remote("upstream", "git@github.com:lowRISC/other.git")
+        assert_that(git_origin_url(tmp_path), equal_to(None))
+
         url = "git@github.com:lowRISC/test.git"
         r.create_remote("origin", url)
 
@@ -122,6 +152,9 @@ def test_git_https_url_with_commit(tmp_path: Path, url: str, expected: str) -> N
         r.index.add([file])
         r.index.commit("initial commit")
 
+        # Returns None when no 'origin' remote is configured.
+        assert_that(git_https_url_with_commit(tmp_path), equal_to(None))
+
         r.create_remote("origin", url)
 
         commit = r.head.commit.hexsha