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SikongJueluo
43ae2db90b
- add handlers/xargs.ts mirroring env: claim xargs-leading commands and defer - register xargsHandler so leading-xargs commands log and defer instead of falling through silently - add CONTEXT.md xargs example and ADR 0003 (xargs args come from stdin, so even the AI judge cannot know them)
31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
# pi-extensions
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Personal `pi` coding-agent extensions. This context covers the permission
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extensions that inspect and re-evaluate Bash commands before they are allowed.
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## Language
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### Wrappers
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**Wrapper**:
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A Bash command of the form `<program> [modifier-args] <inner-command>`, where the
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authorization question is "what does the inner command do?". Whether a wrapper
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may be unwrapped depends on whether its modifier args are transparent.
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_Avoid_: command type, prefix command
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**Transparent wrapper**:
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A wrapper whose modifier args do not change which program the inner command
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resolves to or its trust boundary (e.g. `timeout`). Stripping the modifiers and
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re-evaluating the inner command is sound: the verdict applies to the same
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program that actually runs.
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_Avoid_: safe wrapper
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**Non-transparent wrapper**:
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A wrapper whose modifiers change what the inner command actually does in a way
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the command string does not capture — e.g. `env` (its `PATH=` / `LD_PRELOAD`
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make the inner name resolve to or load a different program) or `xargs` (its
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inner command's arguments are read from stdin). Stripping the modifiers and
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re-evaluating the inner command is unsound: the verdict applies to inputs that
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are not knowable from the command string.
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_Avoid_: unsafe wrapper
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