Keeps credentials, company names, personal names and PII out of the model's context. Enforcement lives in Claude Code hooks rather than in instructions to the agent: a skill alone cannot protect anything, because by the time the agent reads a rule the surrounding context has already been sent. Credentials are removed irreversibly and marked. Entities from a user-supplied dictionary become stable aliases, rewritten back to real values on their way to disk and to the shell, so code and commands referring to them still work. Published from a clean tree; development history is not included.
1.2 KiB
1.2 KiB
description
| 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 stemfor Russian names and any word that inflects, so thatПетров / Петрова / Петровымall match. --hintis 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.