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stack/packages/mosaic/framework/tools
Hermes Agent b1254f52f3
ci/woodpecker/pr/ci Pipeline was canceled
wrapper-guard: judge the payload, not the caller — delete the code/data parser
Round-five review found command substitution executing inside the very quoted
spans the skeleton was discarding as prose:

  echo "$(curl -d@b .../issues/1/comments)"
  msg="$(curl -d@b .../issues/1/comments)"

The unquoted and process-substitution forms already blocked, so the same call
was refused or allowed depending on a quote character. That makes it a
classification defect rather than another spelling, and it is the nineteenth
write to reach execution through this file by the same route: the client was
ABSENT from the skeleton, so the guard allowed.

The reviewer's judgement, which I asked for and accept: this is fitting to the
test set. Answering "code or data" from shell text with sed and awk is not a
hard problem, it is the wrong problem.

It was also not portable. CI has been red at `sanitization` since round four,
and the log says why: under the image's busybox awk the octal escape in the
quote-stripping regex does not bite, every quoted span survives into the
skeleton, and the guard began refusing ordinary prose. Five allow-direction
fixtures failed in CI that pass under GNU awk. A control that reverses its
verdict with the awk on the host is not a control.

So the client detection is gone — the skeleton, the invoker list, the prefix
list, the option-value skipping, all of it. What remains asks two questions of
the text: is this a write, and does it name an endpoint a wrapper owns. It
cannot fail open by hiding the caller because it never looks for one, and it
now catches clients it was never taught: `python -c ... requests.post(...)` and
`wget --post-data` are both fixtures.

The cost is stated in the file and pinned in both directions: QUOTING one of
these calls on a Bash command line is refused as well. Ten fixtures that used
to assert "discussing a call is not making one" now assert the opposite, and
the boundary that stops this becoming block-everything is asserted just as
hard — a quoted READ, an endpoint named without a body flag, a quoted write to
an UNWRAPPED endpoint, and the wrapper's own body flag all still pass. The
18-command ordinary-work sweep blocks none.

The rule an agent can hold without a parser: do not put a raw write to a
wrapped forge endpoint on a Bash command line, not even inside quotes. Write
the example with a file-writing tool.

60/60 fixtures, verified inside the CI image (busybox) as well as locally.
Gates: sanitization, resident budget, test enumeration, tools-index (self-test
4/4, git suite 100%), issue-close, prettier.
2026-08-12 17:59:14 -05:00
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