* feat(python): inspect CPython pyc headers and marshal code objects
Add inspect_python_pyc / inspect-python-pyc to read one explicit local
CPython 3.7–3.13 .pyc without executing bytecode or recovering source.
* chore(python): drop unused PythonPycHeader export
Knip reported the type as unused after inspect_python_pyc landed.
* fix(python): bound pyc expansion and decode marshal like CPython
- Count a nested code object reached through TYPE_REF once per copy the
report carries, against max_objects and max_file_bytes, before counting
or validating the tree
- Charge long digits to max_string_bytes, reject out-of-range and
unnormalized digits, build the value in one pass, and report integers
above 256 bits by bit length only
- Decode TYPE_UNICODE with surrogatepass semantics and reject other
ill-formed UTF-8
- Map only 3.11 magics 3494-3495 to the py311 layout
- Report non-finite float and complex parts as inf, -inf or nan
- Allow an empty co_filename
- Require bytes for co_linetable and co_exceptiontable
- Bind cleanup-failure errors to their retained descriptor leases
* fix(python): list pyc code objects once instead of a recursive tree
Report each distinct code object once in code_objects, top-level first,
with nested_code as indexes. A child shared through TYPE_REF is no longer
copied per reference, and the MCP output schema is no longer recursive.
Names repeated through TYPE_REF still count against max_file_bytes for
each copy the report carries.
* fix(python): bound shared pyc constants and reject malformed tables
- Cache byte-string digests so a buffer shared through TYPE_REF is
hashed once instead of on every reference.
- Charge every reported co_consts entry, including tables shared
through TYPE_REF, against max_objects before summaries are built.
- Resolve the inspect-python-pyc path with absoluteCallerPath so
link/../file.pyc reads the file the filesystem selects.
- Reject TYPE_NULL inside marshal sequences, as CPython does.
- Reject a co_localspluskinds length that does not match
co_localsplusnames in the parser and the report schema.
* fix(python): bound shared pyc names and read CPython marshal graphs
Charge each reported code-constant name, keep integer bit lengths on the
decoded value, and list code objects nested inside constant containers.
Accept self-referential lists and dicts, marshal version 0 text floats,
empty code names, the original string byte count, and Python set and dict
lengths. Pass the CLI cancellation signal into command cleanup.
Co-authored-by: morluto <morluto@users.noreply.github.com>
* fix(python): bound pyc key expansion and shared nested code
Charge set and dictionary keys before a shared tuple doubles them, list each
nested code object once per owner, and accept code objects as CPython keys.
Co-authored-by: morluto <morluto@users.noreply.github.com>
* fix(python): correct pyc equality, counts, and nested walks
Summarize code objects only after the marshal graph is complete, and
collect nested code with an iterative walk that shares wrapper results
instead of copying every descendant list. Keep tuple boundaries and the
original string bytes in equality keys, and reject negative CPython counts.
Co-authored-by: morluto <morluto@users.noreply.github.com>
* fix(python): bound shared pyc names and keep the first dict key
Charge every copied name-table entry against the object budget before
building the report array, including empty strings that add no bytes.
When dictionary keys compare equal, keep the first key object and
replace only its value, matching CPython.
Co-authored-by: morluto <morluto@users.noreply.github.com>
* fix(python): walk each pyc dictionary child list once
Keep a container's child array on the nested-code frame so a wide
dictionary is not copied on every step of the synchronous marshal walk.
Co-authored-by: morluto <morluto@users.noreply.github.com>
* fix(python): reuse stored pyc dictionary children when combining
The nested walk keeps each container's child list on its frame.
Combining nested code rebuilt that list, and the 8,000-key regression
still accepted the old per-key copy. Use the stored list, and require
that dictionary to finish well under the copy's runtime while still
reporting a nested code object.
Co-authored-by: morluto <morluto@users.noreply.github.com>
* fix(python): keep distinct pyc code objects and reject corrupt ones
Encode each name table's length and entry boundaries in the equality
key so a different name list cannot share a memo key. Walk tuple and
frozenset keys on an explicit stack so a long TYPE_REF chain does not
overflow. Treat code objects CPython rejects for an odd co_code or an
undersized local table as malformed instead of complete coverage.
Co-authored-by: morluto <morluto@users.noreply.github.com>
---------
Co-authored-by: Matt Van Horn <455140+mvanhorn@users.noreply.github.com>
Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: morluto <morluto@users.noreply.github.com>
Keep parser-owned completed metadata and tensor declarations as typed partial Evidence on cancellation or physical read failure. Preserve unknown final identity and digests, exact caller inputs, primary failures, and retained cleanup owners; support inline and retained MCP error delivery.
Closes#5625
* feat(il2cpp): inventory IL2CPP global-metadata images, types and methods
Add inspect_il2cpp_metadata (CLI inspect-il2cpp-metadata), a read-only
in-process decoder for unencrypted Unity global-metadata.dat version 39.
It reports header sections, serialized index widths, images, type
definitions (nesting from the nestedTypes section) and method names.
Unrecognized magic and other versions are unsupported; damaged headers,
overlapping sections, inconsistent record sizes, out-of-range indices and
invalid strings fail with a reason code and no partial success. MCP
detail summary retains the complete Evidence and pages rows through
inspect_analysis_view kind il2cpp-metadata.
Adds an opt-in verify:il2cpp:metadata -- --metadata PATH check.
* feat(il2cpp): deliver metadata summaries by default over MCP
A 112,232-method file produced a 10.5 MB complete response, above the
10 MiB stdio budget. Default MCP delivery is now the retained summary;
detail complete stays available, and the one-shot CLI requests it.
* fix(il2cpp): reject shifted strings, nesting cycles and method owner drift
Review fuzzing showed that moving the strings section offset by one byte
silently renamed every image, type and method. Name indices must now start
a string, which also bounds total decoding by the section size.
Nesting cycles and methods whose declaring type disagrees with the owning
type range are rejected instead of returned. Adds service, shutdown and
index-width coverage, and moves environment-specific measurements out of
the public guide and tool description.
* feat(il2cpp): decode global-metadata versions 29 and 31
Unity 2022.3 writes version 29 or 31 metadata: a 256-byte header of
(offset, size) pairs, fixed 4-byte indices, type records with
elementTypeIndex, and method records that gained returnParameterToken in
version 31. Record counts come from section sizes and must be whole.
Sections report a null count for these versions and index widths report
fixed-width-version. Image, type and method rows keep the same shape, and
the string, nesting and method-ownership checks apply to every version.
* fix(il2cpp): bound report size before serializing and tighten coverage
Rows share decoded names, so a 130 KB file could expand into gigabytes of
JSON before the 64 MiB budget check, ending in an internal RangeError. The
provider now refuses from a lower bound on the serialized rows first.
The decoder also rejects non-empty sections inside the header, methods
outside their declaring type's range and overlapping image type ranges, and
keeps a leading byte order mark in names. Layouts now carry one indexing
mode instead of two coupled flags, and the tool description explains
nested_type_start.
* fix(il2cpp): refuse oversized metadata before decoding rows
Address review findings on the IL2CPP metadata inventory:
- check a lower bound from header row counts before any row object is
allocated, so a large rejected file no longer builds every row first;
- validate sealed parent Evidence and count its rows once per report
instead of on every inspect_analysis_view page;
- decode version 39 fixtures with 2- and 4-byte type-definition,
generic-container and parameter indices.
* docs(il2cpp): attach the decoder comment to readIl2cppMetadata
* fix(il2cpp): deliver complete rows by default like the other inspection tools
inspect_il2cpp_metadata defaulted to detail summary, the only inspection
tool to do so. Omitted detail now returns every row inline, as
inspect_artifact, decode_interface_builder and the capture tools do;
summary stays one argument away and the guide, CLI reference and skill
reference say to select it first for large games, whose complete MCP
delivery is refused at the stdio budget with retained Evidence.
* test(il2cpp): cover narrow-width -1 sentinels and fix the skill's default
An empty image stores its type start as the all-ones value of a one- or
two-byte index; the decoder reads it as -1, but no fixture exercised it,
so removing either conversion passed the suite. The fixture can now append
an empty image, and both widths decode it. The skill still described a
summary default; it now says to select summary first, as the guide does.
* docs(il2cpp): request summary explicitly in the summary example
* chore(il2cpp): hash the verifier metadata through owned file resources
* fix(il2cpp): count escaped name length without building the escaped string
* fix(il2cpp): keep the verifier's check failure and small-table last page
* feat(domain): count JSON string length without building the escaped string
* fix(il2cpp): keep descriptor cleanup owners and share the JSON length count
* test(domain): give the backslash case real backslashes
* fix(il2cpp): select the CLI path and finish the command like the other tools
Follow main's absoluteCallerPath (#4067) and pass the command signal to finishAnalysisCommand.
* fix(il2cpp): select the verifier input path like the CLI
Use absoluteCallerPath (#4067) so a path with a symlink followed by .. names the same file the CLI and MCP inspect.
* feat(il2cpp): add compact composable metadata queries
Retain source-indexed Evidence for filtered batch and field queries. Bound representation growth before serialization, yield decoding for cancellation, and share CLI Evidence publication with desktop inspection. Verify public Unity metadata against independent byte and managed-DLL oracles and exercise actual stdio SDK workflows.
* fix(il2cpp): retain the validated metadata header magic
* test(il2cpp): remove obsolete execution wording exception
* fix(artifacts): preserve export selection and completed source facts
---------
Co-authored-by: gensokyo-dev <342580529+gensokyo-dev@users.noreply.github.com>
Refs #4373, #4455, #4457, #4458.
Use canonical artifact ownership in Go, Rust, SQLite and PE readers and their failure consumers. Admit PE read budgets before allocation and ignore zero-extent sections in interval ownership. Close Rust resources through CLI and MCP lifecycles.
morluto