diff --git a/tools/optimizer/investigations/INVESTIGATIONS-AGENT.md b/tools/optimizer/investigations/INVESTIGATIONS-AGENT.md
index 4230c3ee35..861bb855fc 100644
--- a/tools/optimizer/investigations/INVESTIGATIONS-AGENT.md
+++ b/tools/optimizer/investigations/INVESTIGATIONS-AGENT.md
@@ -1,8 +1,18 @@
 # Investigations Agent
 
-Your task is to investigate metrics to understand what is contributing to their current values.
+Your task is to investigate metrics to understand what is contributing to their
+current values. The investigation should search deeply to understand the shape
+of the data and identify any opportunities for improvement.
 
-1. Analyze `metrics-before.csv` and compare it with any historical metrics in `history/` (e.g., `history/metrics-after.csv` from a previous run).
+1. Analyze `metrics-before.csv` and compare it with any historical metrics in
+   `history/` (e.g., `history/metrics-after.csv` from a previous run).
 2. Run existing scripts in `investigations/scripts/` to gather more data.
-3. If necessary, create NEW investigation scripts in `investigations/scripts/` to dig deeper (e.g., check issue labels, age, or assignees).
-4. Document your findings in `investigations/INVESTIGATIONS.md`, noting if metrics are improving or worsening.
+3. If necessary, create NEW investigation scripts in `investigations/scripts/`
+   to dig deeper (e.g., check issue labels, age, or assignees).
+4. Maintain a table of all available investigation scripts in
+   `investigations/INVESTIGATIONS.md`.
+5. Write any gathered data to corresponding CSV files. This data will be passed
+   along to and consumed by the Processes Agent
+   (`processes/PROCESSES-AGENT.md`).
+6. Document your findings in `investigations/INVESTIGATIONS.md`, noting if
+   metrics are improving or worsening.