fix(lib): resolve B-8 send_keys_safe agy verification bypass and add submission retry test

.agents/skills/lib.sh

@@ -1584,13 +1584,9 @@ send_keys_safe() {
   _sks_herdr set-buffer -b "$sks_buf" "$text"
   _sks_herdr paste-buffer -b "$sks_buf" -t "$sess"
   _sks_herdr delete-buffer -b "$sks_buf" 2>/dev/null || true
-  if [[ "$sess" =~ "agy" ]]; then
-    _sks_herdr send-keys -t "$sess" C-m
-    return 0
-  fi
   local was_popup=0
-  if [[ "$sess" =~ "cline" ]] || [[ "$sess" =~ "claude" ]]; then
-    # Skip strict paste check due to scrollout false-positives, proceed to C-m loop
+  if [[ "$sess" =~ "cline" ]] || [[ "$sess" =~ "claude" ]] || [[ "$sess" =~ "agy" ]]; then
+    # Skip strict paste check due to scrollout false-positives, proceed to C-m submission loop
     true
   else
     sleep 0.5

.agents/skills/lib_py/agents/__main__.py

@@ -18,6 +18,9 @@ def main():
         # Emit shell-eval friendly facts
         print(f"AGENT_NAME={adapter.name}")
         print(f"OWN_KEY={adapter.own_key}")
+        print(f"INPUT_PROMPT={adapter.input_prompt or ''}")
+        print(f"INPUT_PLACEHOLDER={adapter.input_placeholder or ''}")
+        print(f"INPUT_RULE_PATTERN={adapter.input_rule_pattern or ''}")
 
     elif cmd == 'resolve':
         name = sys.argv[2] if len(sys.argv) > 2 else ''
@@ -27,6 +30,18 @@ def main():
             sys.exit(0)
         sys.exit(1)
 
+    elif cmd == 'input-region':
+        agent_name = sys.argv[2] if len(sys.argv) > 2 else ''
+        pane_text = sys.stdin.read()
+        from lib_py.agents.input_region import extract_input_region
+        try:
+            region = extract_input_region(pane_text, agent_name)
+            print(region)
+            sys.exit(0)
+        except Exception as ex:
+            print(f"ERROR: {ex}", file=sys.stderr)
+            sys.exit(5)
+
     else:
         print(f"ERROR: Unknown CLI command {cmd!r}", file=sys.stderr)
         sys.exit(1)

.agents/skills/lib_py/agents/adapters/agy.py

@@ -10,3 +10,15 @@ class AgyAgentAdapter(BaseAgentAdapter):
     @property
     def own_key(self) -> str:
         return 'agy_conversation_id_own'
+
+    @property
+    def input_prompt(self) -> str:
+        return '>'
+
+    @property
+    def input_placeholder(self) -> str:
+        return ''
+
+    @property
+    def input_rule_pattern(self) -> str:
+        return '─{10,}'

.agents/skills/lib_py/agents/adapters/claude.py

@@ -10,3 +10,15 @@ class ClaudeAgentAdapter(BaseAgentAdapter):
     @property
     def own_key(self) -> str:
         return 'claude_session_id_own'
+
+    @property
+    def input_prompt(self) -> str:
+        return '❯'
+
+    @property
+    def input_placeholder(self) -> str:
+        return ''
+
+    @property
+    def input_rule_pattern(self) -> str:
+        return '─{10,}'

.agents/skills/lib_py/agents/adapters/cline.py

@@ -10,3 +10,15 @@ class ClineAgentAdapter(BaseAgentAdapter):
     @property
     def own_key(self) -> str:
         return 'cline_conversation_id_own'
+
+    @property
+    def input_prompt(self) -> str:
+        return '❯'
+
+    @property
+    def input_placeholder(self) -> str:
+        return 'Ask anything...'
+
+    @property
+    def input_rule_pattern(self) -> str:
+        return '─{10,}'

.agents/skills/lib_py/agents/base.py

@@ -27,6 +27,18 @@ class BaseAgentAdapter:
     def own_key(self) -> str:
         raise NotImplementedError
 
+    @property
+    def input_prompt(self) -> Optional[str]:
+        return None
+
+    @property
+    def input_placeholder(self) -> Optional[str]:
+        return None
+
+    @property
+    def input_rule_pattern(self) -> Optional[str]:
+        return None
+
     def derive_session_name(self, slug: str, role: str = "creator") -> str:
         r = role.lower()
         return f"{slug}-{r}-{self.name}"

.agents/skills/lib_py/agents/input_region.py

@@ -0,0 +1,40 @@
+# input_region.py — Rule-based input region extraction and normalization (T2 & T3)
+
+import re
+from lib_py.agents.registry import get_adapter
+
+def extract_input_region(pane_text: str, agent_name: str) -> str:
+    """
+    Extracts the input area text between horizontal rule separators (─{10,}) for a given agent.
+    If rules are absent, falls back to full pane_text to support mocks and unruled panes.
+    Strips leading prompt tokens ('>', '❯') and placeholders ('Ask anything...').
+    Raises ValueError for unsupported agents (like hermes with no input area facts).
+    """
+    adapter = get_adapter(agent_name)
+    if not adapter or not adapter.input_prompt:
+        raise ValueError(f"Agent {agent_name!r} has no input area facts")
+
+    rule_pattern = adapter.input_rule_pattern or r'─{10,}'
+    rule_re = re.compile(rule_pattern)
+    lines = pane_text.splitlines()
+    rule_indices = [i for i, line in enumerate(lines) if rule_re.search(line)]
+
+    if len(rule_indices) >= 2:
+        # Exclude the rule lines themselves: lines between rule_indices[-2] + 1 and rule_indices[-1]
+        region_lines = lines[rule_indices[-2] + 1:rule_indices[-1]]
+    elif len(rule_indices) == 1:
+        region_lines = lines[rule_indices[0] + 1:]
+    else:
+        region_lines = lines
+
+    region_text = "\n".join(region_lines)
+
+    prompt = adapter.input_prompt
+    if prompt:
+        region_text = re.sub(r'^\s*' + re.escape(prompt) + r'\s*', '', region_text, flags=re.MULTILINE)
+
+    placeholder = adapter.input_placeholder
+    if placeholder:
+        region_text = region_text.replace(placeholder, '')
+
+    return region_text.strip()