Merge nucleic/nimble-umber-toad-20h7 into dev

README.md

@@ -1,7 +1,7 @@
 # nucleic-brush
 
 A fork of [**brush**](https://github.com/reubeno/brush) — the Bo(u)rn(e) RUsty SHell by
-reuben olinsky — carrying the patches Nucleic needs to build **nash**, its agent shell.
+reuben olinsky — carrying the patches Nucleic needs to build **hash**, its agent shell.
 
 Pinned at upstream tag **`brush-shell-v0.4.0`** (commit `96a26d0`).
 
@@ -18,11 +18,11 @@ commands, their exits, and the data crossing pipes and redirections — from ins
 shell rather than by wrapping it. That is what these patches provide. Everything else
 is upstream brush, unmodified.
 
-Every divergence carries a `// nash:` comment, so the complete diff against upstream is
+Every divergence carries a `// hydrashell:` comment, so the complete diff against upstream is
 one grep away:
 
 ```console
-$ grep -rn "nash:" --include="*.rs" --include="*.yaml" .
+$ grep -rn "hydrashell:" --include="*.rs" --include="*.yaml" .
 ```
 
 ### 1. The observation gate
@@ -65,12 +65,12 @@ and belong upstream:
 
 ### 3. Branding
 
-The binary this workspace builds is still named `brush`, but identifies itself as nash
+The binary this workspace builds is still named `brush`, but identifies itself as hash
 so an agent-facing shell doesn't misrepresent what it is:
 
 | File | Change |
 | --- | --- |
-| `brush-shell/src/productinfo.rs` | `PRODUCT_NAME` → `nash`; display string reads `nash (Nucleic agent shell, brush fork) …` |
+| `brush-shell/src/productinfo.rs` | `PRODUCT_NAME` → `hydrashell`; display string reads `hydrashell (hash — Hydrangea agent shell, brush fork) …` |
 | `brush-shell/src/args.rs` | usage and version strings rebranded |
 | `brush-core/src/prompt.rs` | `\$` renders the atom sign `⚛` (U+269B) for non-root; root still shows `#` |
 
@@ -80,8 +80,8 @@ current verification status.
 ## How it's consumed
 
 Nucleic's `shell/` workspace depends on `brush-shell` and `brush-parser` by path. The
-`nash` binary is a thin wrapper that loads a root-owned operator policy, installs its
-`Gate` implementation (`nash-observe`), flushes events at exit, and otherwise defers
+`hydrashell` binary is a thin wrapper that loads a root-owned operator policy, installs its
+`Gate` implementation (`hydrashell-observe`), flushes events at exit, and otherwise defers
 entirely to brush's bash-compatible CLI. None of the fork's crates are published; the
 `brush` binary built from here is a development artifact.
 
@@ -105,7 +105,7 @@ ones a baseline run reproduces, plus the 3 IFS tests the expansion fix repairs.
 
 1. Diff this tree against the pinned upstream tag.
 2. Re-vendor the new tag.
-3. Re-apply the fork patches — `grep -rn "nash:"` on the old tree enumerates all of
+3. Re-apply the fork patches — `grep -rn "hydrashell:"` on the old tree enumerates all of
    them.
 4. Re-run the brush compat suite and Nucleic's transcript-replay corpus.
 5. Update the pin and the patch table in [`NUCLEIC_FORK.md`](NUCLEIC_FORK.md).