LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values.
This report summarizes scanner evidence for google/leveldb, a C++ project with 39,487 GitHub stars. SynthScan examined 8,396 lines of code across 67 source files, recording 83 pattern matches distributed across 1 syntactic category. The legacy adjusted pattern signal is 9.9 (Moderate pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Can maintainers explain intent, assumptions, and trade-offs? 83 finding(s).
Are imports declared and package/API names verified? 0 finding(s).
Are wrappers, guards, and repeated structures necessary? 0 finding(s).
Which changes need focused human review? 83 finding(s).
Run additional scans to build a history of the legacy pattern signal. Score changes are not a measure of AI adoption or code quality.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 83 distinct pattern matches across 1 syntactic category. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | util/posix_logger.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | util/coding.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | util/logging.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | util/mutexlock.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | util/crc32c.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | util/windows_logger.h | 1 | // Copyright (c) 2018 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | util/testutil.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | util/no_destructor.h | 1 | // Copyright (c) 2018 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/env.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/env.h | 21 | #include "leveldb/export.h" | COMMENT |
| LOW | include/leveldb/env.h | 61 | // system. Sophisticated users may wish to provide their own Env | COMMENT |
| LOW | include/leveldb/env.h | 81 | // status. Implementations should return a NotFound status when the file does | COMMENT |
| LOW | include/leveldb/env.h | 101 | // returns OK. On failure stores nullptr in *result and returns | COMMENT |
| LOW | include/leveldb/env.h | 121 | // Delete the named file. | COMMENT |
| LOW | include/leveldb/env.h | 141 | // Create the specified directory. | COMMENT |
| LOW | include/leveldb/env.h | 161 | // A future release will remove this method. | COMMENT |
| LOW | include/leveldb/env.h | 181 | // with a failure. I.e., this call does not wait for existing locks | COMMENT |
| LOW | include/leveldb/env.h | 261 | // Read up to "n" bytes from the file starting at "offset". | COMMENT |
| LOW | include/leveldb/env.h | 401 | private: | COMMENT |
| LOW | include/leveldb/export.h | 1 | // Copyright (c) 2017 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/export.h | 21 | #define LEVELDB_EXPORT __attribute__((visibility("default"))) | COMMENT |
| LOW | include/leveldb/status.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/db.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/db.h | 61 | virtual ~DB(); | COMMENT |
| LOW | include/leveldb/db.h | 81 | // corresponding value in *value and return OK. | COMMENT |
| LOW | include/leveldb/db.h | 101 | // snapshot is no longer needed. | COMMENT |
| LOW | include/leveldb/db.h | 121 | // of the sstables that make up the db contents. | COMMENT |
| LOW | include/leveldb/db.h | 141 | // be invoked by users who understand the underlying implementation. | COMMENT |
| LOW | include/leveldb/slice.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/cache.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/cache.h | 41 | // Destroys all existing entries by calling the "deleter" | COMMENT |
| LOW | include/leveldb/cache.h | 61 | // | COMMENT |
| LOW | include/leveldb/cache.h | 81 | virtual void Erase(const Slice& key) = 0; | COMMENT |
| LOW | include/leveldb/write_batch.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/options.h | 41 | // Comparator used to define the order of keys in the table. | COMMENT |
| LOW | include/leveldb/options.h | 61 | COMMENT | |
| LOW | include/leveldb/options.h | 81 | // Also, a larger write buffer will result in a longer recovery time | COMMENT |
| LOW | include/leveldb/options.h | 101 | size_t block_size = 4 * 1024; | COMMENT |
| LOW | include/leveldb/options.h | 121 | // Default: kSnappyCompression, which gives lightweight but fast | COMMENT |
| LOW | include/leveldb/options.h | 161 | // (which must belong to the DB that is being read and which must | COMMENT |
| LOW | include/leveldb/dumpfile.h | 1 | // Copyright (c) 2014 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/filter_policy.h | 1 | // Copyright (c) 2012 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/filter_policy.h | 41 | // Warning: do not change the initial contents of *dst. Instead, | COMMENT |
| LOW | include/leveldb/filter_policy.h | 61 | // Note: if you are using a custom comparator that ignores some parts | COMMENT |
| LOW | include/leveldb/comparator.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/comparator.h | 21 | public: | COMMENT |
| LOW | include/leveldb/comparator.h | 41 | COMMENT | |
| LOW | include/leveldb/table.h | 21 | class TableCache; | COMMENT |
| LOW | include/leveldb/table_builder.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/table_builder.h | 41 | // Change the options used by this builder. Note: only some of the | COMMENT |
| LOW | include/leveldb/table_builder.h | 61 | Status status() const; | COMMENT |
| LOW | include/leveldb/iterator.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | include/leveldb/iterator.h | 41 | // Position at the last key in the source. The iterator is | COMMENT |
| LOW | include/leveldb/iterator.h | 61 | // the returned slice is valid only until the next modification of | COMMENT |
| LOW | table/iterator_wrapper.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | table/merger.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | table/filter_block.h | 1 | // Copyright (c) 2012 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | table/two_level_iterator.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | db/table_cache.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| LOW | db/skiplist.h | 1 | // Copyright (c) 2011 The LevelDB Authors. All rights reserved. | COMMENT |
| 23 more matches not shown… | ||||