* feat(uvx): add uvx (uv tool run) package executor
Adds support for `uvx`, implemented as a PyPI Executor alongside pipx.
uvx is an alias for `uv tool run`: it installs a tool into an ephemeral
environment and runs it, so it has no install/list subcommand and the
first positional argument (or --from) is the package to audit.
Parsing highlights:
- --from overrides the positional command as the package to audit
- --with packages are audited as additional environment dependencies
- name@version shorthand (ruff@0.3.0, ruff@latest) is normalized
- flag parsing stops at the tool name so the tool's own flags are not
misread as uvx options; uvx's value/boolean flags are registered so
none greedily consume the package positional
- VCS/URL/local-path specs are skipped for registry auditing
Wires up command registration, analytics, shell alias/shim, cloud audit
mapping, a dedicated `uvx` sandbox profile (UV_*/PIP_* env, uv cache and
tool dirs), config policy, docs, unit tests and an E2E workflow step.
Closes#326https://claude.ai/code/session_011hyLxq7oWJX5Dp4tCEfG19
* chore(uvx): align docs and base profile with uvx support
Incorporates the low-risk, non-parser improvements from the community
PR #345 (author non-responsive) into our implementation:
- list uvx (and the previously-missing pipx) as PyPI managers in the
pypi-restrictive base profile package_managers and its README, so the
base profile applies directly when selected via --sandbox-profile
- document uvx in docs/github-action.md and docs/proxy-mode.md
- add version / IsExplicitVersion assertions to the uvx parser tests
Our pflag-based parser is kept as-is: unlike #345 it audits --with
packages and handles all uvx short flags (e.g. -w), both of which the
community PR misses.
* fix(uvx): skip interpreter requests; use require in tests
Addresses review feedback on PR #357:
- uvx interpreter requests (`uvx python`, `uvx python@3.12`, `uvx pypy`,
...) launch an isolated interpreter rather than installing a PyPI tool.
Treating the positional as a package made the guard flow resolve/analyze
pkg:pypi/python (and python==3.12), which could wrongly block or fail a
valid invocation. Skip these for the positional; --with packages on the
same command are still audited.
- Use require.NoError / require.Len for fatal assertions in the uvx tests,
matching the repo's testing convention, so a failure stops the subtest
before a nil dereference instead of panicking.
* docs(uvx): document fail-open and --with-requirements trade-offs
Record the two deliberate parsing decisions raised in review as in-code
trade-off comments (no behavior change):
- unknown flags are tolerated (fail open), consistent with the other
executors; the residual gap only affects non-proxy guard mode since the
default proxy flow intercepts every registry download.
- --with-requirements / --with-editable values are consumed but not
expanded into audit targets; expanding them needs manifest-extractor and
guard changes, tracked as follow-up. Proxy mode still covers them.
* docs(uvx): drop --with-requirements limitation note
Per maintainer review: guard mode is being deprecated and auditing the
contents of an existing requirements file is a scanner's responsibility,
not PMG's. Remove the "known limitation / follow-up" note; the flags stay
registered only so their values are not mistaken for the tool positional.
---------
Co-authored-by: Claude <noreply@anthropic.com>
* feat(sandbox): allow opt-out of mandatory deny via explicit allow rules
Mandatory deny patterns (.env, .aws, .ssh, .gcloud, .kube, .gnupg,
.docker/config.json, .git/config) can now be opted out by listing the
exact literal post-expansion path in policy filesystem.allow_read /
allow_write, OR via --sandbox-allow read=... / write=... at runtime.
Both channels are treated at par.
Suppression is exact-match. Listing the CWD-absolute or HOME-absolute
form of a dangerous file additionally suppresses its **/<file> glob
sibling on the same direction so a single opt-out is sufficient.
Broad globs (${CWD}/**) and relative paths in user allow lists do not
suppress. The unnamed absolute form remains denied. .git/hooks is
unconditional and never suppressible (arbitrary code execution risk).
GetMandatoryDenyPatterns now returns split DenyRead / DenyWrite
slices and reports SuppressedRead / SuppressedWrite for audit. Both
translators emit per-direction deny rules and log.Warnf each
suppression. On Linux/bubblewrap, the tmpfs hide is restricted to the
intersection of DenyRead and DenyWrite; one-sided suppression falls
back to /dev/null (write) or the user's allow_read --ro-bind (read).
bwrap has no primitive that allows writes while denying reads, so
write-only opt-outs warn that the read-side mandatory deny is
unenforceable.
Updates docs/sandbox.md to document the opt-out, exact-match
semantics, and the Linux platform limitation. Updates pmg-e2e.yml to
create ./.env so the sandbox e2e test exercises the BLOCK case.
Closes#232
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* fix: Code review fixes
---------
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
* feat: Add support for bubblewrap sandbox
* fix: Glob pattern expansion limit for linux
* fix: Bug in glob pattern expansion for bwrap
* fix: README on trust
* fix: Multiple bubblewrap translator fix
* test: Add E2E for linux sandbox
* fix: Refactor bwrap sandbox to use common dangerous files
* fix: Path test case
* fix: Non-existent path handling bug
* refactor: Misc cleanup
* fix: Avoid bind mount for non-existentent deny protection
* fix: Off by one bug in path depth handling
* ci: Disable AppArmor on GHA runner
* fix: Disable apparmor userns restrictions
