policy: no build artifacts in repos

Build artifacts and code-derived data (compiled output, bundled JS,
minified CSS, generated code) must not be committed if they can be
generated during the build process. Go protobuf-generated files are
an exception since go get does not execute build steps.

prompts/LLM_PROSE_TELLS.md

@@ -1,7 +1,6 @@
 # LLM Prose Tells
 
-A catalog of structural, lexical, and rhetorical patterns found in LLM-generated
+A catalog of patterns found in LLM-generated prose.
-prose.
 
 ---
 
@@ -18,7 +17,7 @@ A negation followed by an em-dash and a reframe.
 
 Even outside the "not X but Y" pivot, models substitute em-dashes for commas,
 semicolons, parentheses, colons, and periods. The em-dash can replace any other
-punctuation mark, and models default to it for that reason.
+punctuation mark, so models default to it.
 
 ### The Colon Elaboration
 
@@ -79,8 +78,7 @@ zero information. The actual point is always in the next paragraph.
 
 > "This is, of course, a simplification." "There are, to be fair, exceptions."
 
-Parenthetical asides inserted to perform nuance without ever changing the
+Parenthetical asides inserted to perform nuance without changing the argument.
-argument.
 
 ### The Unnecessary Contrast
 
@@ -127,10 +125,10 @@ precedent), "navigate," "foster," "underscores," "resonates," "embark,"
 
 ### Elevated Register Drift
 
-Models write one register above where a human would. "Use" becomes "utilize."
+Models write one register above where a human would, replacing "use" with
-"Start" becomes "commence." "Help" becomes "facilitate." "Show" becomes
+"utilize," "start" with "commence," "help" with "facilitate," "show" with
-"demonstrate." "Try" becomes "endeavor." "Change" becomes "transform." "Make"
+"demonstrate," "try" with "endeavor," "change" with "transform," and "make" with
-becomes "craft."
+"craft."
 
 ### Filler Adverbs
 

prompts/REPO_POLICIES.md

@@ -1,6 +1,6 @@
 ---
 title: Repository Policies
-last_modified: 2026-02-22
+last_modified: 2026-03-10
 ---
 
 This document covers repository structure, tooling, and workflow standards. Code
@@ -92,6 +92,14 @@ style conventions are in separate documents:
 - Never commit secrets. `.env` files, credentials, API keys, and private keys
   must be in `.gitignore`. No exceptions.
 
+- Build artifacts and code-derived data (compiled output, bundled JS, minified
+  CSS, generated code) must NOT be committed to the repository if they can be
+  generated during the build process. The Dockerfile or build system should
+  produce these artifacts at build time. Notable exception: Go
+  protobuf-generated files (`.pb.go`) may be committed because Go module
+  consumers use `go get` which downloads source code but does not execute build
+  steps.
+
 - `.gitignore` should be comprehensive from the start: OS files (`.DS_Store`),
   editor files (`.swp`, `*~`), language build artifacts, and `node_modules/`.
   Fetch the standard `.gitignore` from