---
description: Protect a company name, person, hostname or project codename behind a stable alias
---

Register a value in the ctxguard dictionary so it is replaced by an alias everywhere
before it reaches the model, and restored on the way back to disk.

Arguments: `$ARGUMENTS` — the value, optionally followed by a type.

Run:

```
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/ctxguard.py" entity add "<value>" --type <company|person|host|project|email|phone|custom> [--match stem] [--hint "<safe description>"]
```

Guidance:
- Use `--match stem` for Russian names and any word that inflects, so that
  `Петров / Петрова / Петровым` all match.
- `--hint` is injected into the model's context verbatim, so it must describe the
  entity without repeating it ("retail customer", not "Globex is a customer"). The
  command rejects a hint containing the value.
- Add spelling variants with repeated `--variant` (transliterations, abbreviations).

Afterwards show the new alias and run `entity list` so the user can see the whole
dictionary. Never print the value back to the user's terminal — they typed it, but the
transcript is exactly what we are trying to keep clean.