Okay, we have a `TypeError: 'NoneType' object is not subscriptable` in the `fel_s2_lt` method of the `TinyFELSim`. Looking at the code for `fel_s2_lt`: ```python def fel_s2_lt(self, llm_result): # Load TIDs self.log(f"FEL-MH: Step 2 - Load TIDs from: {llm_result}") self.fel_state["tids_loaded"] = llm_result.get("tids", []) # The error is here: self.log("") returns None, then [0:26] fails. self.cco_log.append({"ts": self.log("")[0:26], "event": "TIDs_Loaded", "count": len(self.fel_state["tids_loaded"])}) return self.fel_s3_pt() ``` The line `self.cco_log.append({"ts": self.log("")[0:26], ...})` is problematic. My `self.log()` method prints the log and appends to `self.log_history`, but it doesn't *return* the timestamp string. It returns `None`. So, trying to take a slice `[0:26]` of `None` causes the `TypeError`. **This is a bug in my generated `TinyFELSim` stub.** I, as the code generator for this stub, made this error. **Fixing the `TinyFELSim` Stub:** The `log` method should return the timestamp, or the `fel_s2_lt` method should get the timestamp differently. Let's modify `log` to return the `log_entry` and then extract the timestamp from there. Or, more simply, call `gts()` directly. Corrected `fel_s2_lt` (and similar methods that might use this pattern): ```python def fel_s2_lt(self, llm_result): # Load TIDs self.log(f"FEL-MH: Step 2 - Load TIDs from: {llm_result}") self.fel_state["tids_loaded"] = llm_result.get("tids", []) # Corrected way to get timestamp for cco_log timestamp_for_cco = self.gts() # Get timestamp directly self.cco_log.append({"ts": timestamp_for_cco, "event": "TIDs_Loaded", "count": len(self.fel_state["tids_loaded"])}) self.log(f"Appended to cco_log: TIDs_Loaded, count: {len(self.fel_state['tids_loaded'])}") # Add a log for this action return self.fel_s3_pt() ``` I'll need to apply similar fixes to `fel_s4_pv`, `fel_s5_pat`, and `fel_s6_fe` where they might be adding to `cco_log` using the faulty pattern. **My Apologies - I will fix the `TinyFELSim` stub and re-run the entire orchestration for this turn.** This is exactly the kind of debugging that is necessary. Even in a simplified stub, errors can occur. My role is to identify them (with your help, thank you!) and correct them. I will now prepare a new `tool_code` block with the corrected `TinyFELSim` and re-run the full sequence from "Simulating User Choice: Evolve Self (FEL)" onwards. Stand by.