diff --git a/README.md b/README.md
index ae941c5..1127ea1 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ runners need a few tools — see [Good to know](#good-to-know).
 | `author-name` | `false` | Check each commit's author name |
 | `author-email` | `false` | Check each commit's author email |
 | `pr-title` | `false` | Check the pull request title against Conventional Commits — the one that matters for squash merges. Pull request events only |
-| `pr-body` | `false` | Check the pull request description against the AI rules of `cchk.toml` (`ai_attribution`) only. Pull request events only |
+| `pr-body-ai-attribution` | `false` | Check the pull request description against the AI rules of `cchk.toml` (`ai_attribution`) only. Pull request events only |
 | `ai-label` | `false` | Label the pull request when an AI tool wrote any of it (a commit, the description, or an agent's app that opened it): `true` for `ai-assisted`, or the label's name. Labels are only added, never removed. Needs `pull-requests: write`; skipped on fork pull requests under `pull_request` |
 | `pr-comments` | `false` | Post the report as a pull request comment, edited in place on later runs. Needs `pull-requests: write`; skipped on fork pull requests |
 | `job-summary` | `true` | Write the report to the job summary |
@@ -87,7 +87,7 @@ runners need a few tools — see [Good to know](#good-to-know).
 
 > [!TIP]
 > `pull_request` does not fire when a title or description is edited. With
-> `pr-title` or `pr-body`, add `types: [opened, synchronize, reopened, edited]`
+> `pr-title` or `pr-body-ai-attribution`, add `types: [opened, synchronize, reopened, edited]`
 > to re-check an edited pull request.
 
 ## Configuration
diff --git a/action.yml b/action.yml
index edfae12..09f8894 100644
--- a/action.yml
+++ b/action.yml
@@ -37,7 +37,7 @@ inputs:
     description: check pull request title following conventional commits
     required: false
     default: false
-  pr-body:
+  pr-body-ai-attribution:
     description: check the pull request description against the AI attribution rules (ai_attribution in cchk.toml)
     required: false
     default: false
@@ -118,6 +118,6 @@ runs:
         JOB_SUMMARY: ${{ inputs.job-summary }}
         PR_COMMENTS: ${{ inputs.pr-comments }}
         PR_TITLE: ${{ inputs.pr-title }}
-        PR_BODY: ${{ inputs.pr-body }}
+        PR_BODY_AI_ATTRIBUTION: ${{ inputs.pr-body-ai-attribution }}
         AI_LABEL: ${{ inputs.ai-label }}
         GITHUB_TOKEN: ${{ github.token }}
diff --git a/main.py b/main.py
index 1f3bc36..5bb215d 100755
--- a/main.py
+++ b/main.py
@@ -87,7 +87,7 @@ def _reconfigure_io() -> None:
 JOB_SUMMARY_ENABLED = env_flag("JOB_SUMMARY")
 PR_COMMENTS_ENABLED = env_flag("PR_COMMENTS")
 PR_TITLE_ENABLED = env_flag("PR_TITLE")
-PR_BODY_ENABLED = env_flag("PR_BODY")
+PR_BODY_AI_ATTRIBUTION_ENABLED = env_flag("PR_BODY_AI_ATTRIBUTION")
 
 #: The label ``ai-label: true`` puts on a pull request that an AI tool wrote.
 DEFAULT_AI_LABEL = "ai-assisted"
@@ -254,7 +254,7 @@ def log_env_vars():
         "JOB_SUMMARY",
         "PR_COMMENTS",
         "PR_TITLE",
-        "PR_BODY",
+        "PR_BODY_AI_ATTRIBUTION",
         "AI_LABEL",
     ):
         value = os.getenv(name, "false")
@@ -464,7 +464,7 @@ def get_pr_opener_tool() -> str | None:
 
 
 #: The AI tools found in the pull request description when it was read for
-#: the label only (``ai-label`` without ``pr-body``), so it is no scope.
+#: the label only (``ai-label`` without ``pr-body-ai-attribution``), so it is no scope.
 PR_BODY_AI_TOOLS: list[str] = []
 
 
@@ -789,7 +789,7 @@ def run_commit_check() -> tuple[int, list[ScopeResult]]:
 
     Checks are evaluated in order:
       1. PR title (when ``pr-title: true`` and in a PR event)
-      2. PR description, AI rules only (when ``pr-body: true`` and in a PR
+      2. PR description, AI rules only (when ``pr-body-ai-attribution: true`` and in a PR
          event; with only ``ai-label`` set it is read for the label, and no
          scope is reported)
       3. Individual PR commit messages (when ``message: true`` and in a PR event)
@@ -807,13 +807,13 @@ def run_commit_check() -> tuple[int, list[ScopeResult]]:
             results.append(check_scope("PR title", ["--message"], input_text=pr_title))
 
     # ---- 2. PR description ------------------------------------------------
-    if (PR_BODY_ENABLED or ai_label_name()) and is_pr_event():
+    if (PR_BODY_AI_ATTRIBUTION_ENABLED or ai_label_name()) and is_pr_event():
         pr_body = get_pr_body()
         if pr_body:
             scope = check_scope(
                 "PR description", ["--ai-attribution-only"], input_text=pr_body
             )
-            if PR_BODY_ENABLED:
+            if PR_BODY_AI_ATTRIBUTION_ENABLED:
                 results.append(scope)
             else:
                 PR_BODY_AI_TOOLS[:] = scope.ai_tools
diff --git a/main_test.py b/main_test.py
index c1c0746..208b95e 100644
--- a/main_test.py
+++ b/main_test.py
@@ -153,7 +153,7 @@ def test_every_input_is_logged_as_a_debug_command(self):
                 "::debug::JOB_SUMMARY=false",
                 "::debug::PR_COMMENTS=false",
                 "::debug::PR_TITLE=false",
-                "::debug::PR_BODY=false",
+                "::debug::PR_BODY_AI_ATTRIBUTION=false",
                 "::debug::AI_LABEL=false",
             ],
         )
@@ -3699,7 +3699,7 @@ def _run(self, pr_body_enabled, ai_label, body="Adds a parser."):
         )
         with (
             patch("main.PR_TITLE_ENABLED", False),
-            patch("main.PR_BODY_ENABLED", pr_body_enabled),
+            patch("main.PR_BODY_AI_ATTRIBUTION_ENABLED", pr_body_enabled),
             patch.dict(os.environ, {"AI_LABEL": ai_label}),
             patch("main.MESSAGE_ENABLED", False),
             patch("main.BRANCH_ENABLED", False),