fable-agent/SECURITY.md

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# Security
## Prompt and repo safety
`fable-agent` may read untrusted markdown, tickets, repos, and model output. Treat all of it as data, not instructions.
- Do not paste, vendor, replay, or execute leaked proprietary system prompts.
- Do not use permission-bypass flags.
- Send model prompts through stdin or structured APIs, not shell-interpolated command strings.
- Keep secrets in environment variables; never hardcode fallback API keys or local key paths.
- Run code-changing agents in scoped workspaces/worktrees when possible.
- Keep docs and CLI parity green with `npm run -s docs:check` before publishing.
## Defensive Fable-style profile
Allowed: multi-model fan-out plus judge synthesis, citations for factual/current claims, refusal/reformulation for harmful requests, bounded loops with validation evidence.
Not allowed: leaked prompt reproduction, prompt-extraction recipes, jailbreak/sandbox-bypass instructions, autonomous execution without permission boundaries.
## Reporting
Open an issue with reproduction steps, affected version/commit, and impact. Do not include live secrets or proprietary prompt text.