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memory.README.md

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+# Shell memory questions
+
+`memory.tsv` is a selectively curated question-and-answer bank for reinforcing
+useful shell commands. It deliberately excludes internal functions, standard
+command overrides and deprecated transition aliases.
+
+Each non-empty line contains three tab-separated fields:
+
+```text
+name	question	answer
+```
+
+- `name` is a unique stable identifier, normally the command or alias name.
+- `question` is displayed on shell startup.
+- `answer` is displayed by running `answerpls` in that terminal.
+
+The file has no header or comments. Empty fields, duplicate names and malformed
+rows are errors.
+
+Bash selects one entry deterministically from the local calendar date. Every
+terminal opened on the same day therefore shows the same question without
+requiring a state file. Editing the bank may change which question maps to a
+given date.