feat: simplify PR attribution footer to "Made by Open SWE" (#1382)

Replace the double-attribution PR body footer (_Opened collaboratively by
{user} and open-swe._) with a single Cursor-style footer linking to the
project. Since PRs are now opened as the triggering user, the user no longer
needs to be named in the footer. The commit Co-authored-by trailer is kept.

Legacy footers are migrated on PR updates.

agent/prompt.py

@@ -6,6 +6,7 @@ from pathlib import Path
 from .utils.authorship import (
     OPEN_SWE_BOT_EMAIL,
     OPEN_SWE_BOT_NAME,
+    PR_ATTRIBUTION_FOOTER,
     CollaboratorIdentity,
 )
 from .utils.github_comments import UNTRUSTED_GITHUB_COMMENT_OPEN_TAG
@@ -374,10 +375,10 @@ This run was triggered by **{display_name}**. You author the work **as them**
   Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>
   ```
 
-- **PR body**: append this line to the bottom of the PR description (separated from the body by a blank line) when you open or update the draft PR. Do not duplicate it if it is already present. If the PR body already contains the legacy footer `_Opened collaboratively by {display_name} and open-swe._`, replace that legacy footer with this line instead of appending a second footer:
+- **PR body**: append this line to the bottom of the PR description (separated from the body by a blank line) when you open or update the draft PR. Do not duplicate it if it is already present. If the PR body already contains a legacy footer like `_Opened collaboratively by {display_name} and open-swe._`, replace that legacy footer with this line instead of appending a second footer:
 
   ```
-  _Opened collaboratively by {pr_attribution_name} and open-swe._
+  {pr_attribution_footer}
   ```
 
 If you forget the trailer on a local commit that has not been pushed, fix it with `git commit --amend` before pushing — do not push without it. If the commit has already been pushed, leave it as-is and add the trailer to your next commit; never rewrite remote history to fix it."""
@@ -388,7 +389,7 @@ def _render_collaboration_section(identity: CollaboratorIdentity | None) -> str:
         return ""
     return COLLABORATION_TEMPLATE.format(
         display_name=identity.display_name,
-        pr_attribution_name=identity.pr_attribution_name,
+        pr_attribution_footer=PR_ATTRIBUTION_FOOTER,
     )
 
 

agent/utils/authorship.py

@@ -13,6 +13,8 @@ logger = logging.getLogger(__name__)
 OPEN_SWE_BOT_NAME = "open-swe[bot]"
 OPEN_SWE_BOT_EMAIL = "open-swe@users.noreply.github.com"
 
+PR_ATTRIBUTION_FOOTER = "Made by [Open SWE](https://openswe.vercel.app)"
+
 
 @dataclass(frozen=True)
 class CollaboratorIdentity:
@@ -153,24 +155,29 @@ def add_bot_coauthor_trailer(commit_message: str) -> str:
 
 def add_pr_collaboration_note(
     pr_body: str,
-    identity: CollaboratorIdentity | None,
+    identity: CollaboratorIdentity | None = None,
 ) -> str:
-    """Append a best-effort PR attribution note.
+    """Append the Open SWE attribution footer to a PR body.
 
-    GitHub supports commit co-authors, but not PR co-authors. This note makes
+    The PR is opened as the triggering user, so the body only credits Open SWE
-    the collaboration explicit in the automatically-opened PR body.
+    as the collaborator. Any legacy double-attribution footer is replaced.
     """
 
     normalized_body = pr_body.rstrip()
-    if not identity:
+    note = PR_ATTRIBUTION_FOOTER
-        return normalized_body
-
-    old_note = f"_Opened collaboratively by {identity.display_name} and open-swe._"
-    note = f"_Opened collaboratively by {identity.pr_attribution_name} and open-swe._"
     if note in normalized_body:
         return normalized_body
-    if old_note in normalized_body:
+
-        return normalized_body.replace(old_note, note)
+    legacy_footers: list[str] = []
+    if identity is not None:
+        legacy_footers.append(
+            f"_Opened collaboratively by {identity.pr_attribution_name} and open-swe._"
+        )
+        legacy_footers.append(f"_Opened collaboratively by {identity.display_name} and open-swe._")
+    for legacy in legacy_footers:
+        if legacy in normalized_body:
+            return normalized_body.replace(legacy, note)
+
     if not normalized_body:
         return note
     return f"{normalized_body}\n\n{note}"

tests/test_github_comment_prompts.py

@@ -101,7 +101,7 @@ def test_construct_system_prompt_includes_coauthor_trailer_when_identity_present
     assert "git config user.name octocat" in prompt
     assert "git config user.email 1234+octocat@users.noreply.github.com" in prompt
     assert "Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>" in prompt
-    assert "_Opened collaboratively by octocat and open-swe._" in prompt
+    assert "Made by [Open SWE](https://openswe.vercel.app)" in prompt
 
 
 def test_construct_system_prompt_includes_github_login_in_pr_footer() -> None:
@@ -121,7 +121,7 @@ def test_construct_system_prompt_includes_github_login_in_pr_footer() -> None:
     assert "git config user.name 'Mona Lisa'" in prompt
     assert "git config user.email 1234+octocat@users.noreply.github.com" in prompt
     assert "Co-authored-by: open-swe[bot] <open-swe@users.noreply.github.com>" in prompt
-    assert "_Opened collaboratively by Mona Lisa (@octocat) and open-swe._" in prompt
+    assert "Made by [Open SWE](https://openswe.vercel.app)" in prompt
     assert (
         "replace that legacy footer with this line instead of appending a second footer" in prompt
     )
@@ -160,7 +160,7 @@ def test_add_pr_collaboration_note_replaces_legacy_footer() -> None:
     body = "## Description\nDone.\n\n_Opened collaboratively by Mona Lisa and open-swe._"
 
     assert add_pr_collaboration_note(body, identity) == (
-        "## Description\nDone.\n\n_Opened collaboratively by Mona Lisa (@octocat) and open-swe._"
+        "## Description\nDone.\n\nMade by [Open SWE](https://openswe.vercel.app)"
     )