Browse skills

Examine what a file claims about itself and what it actually contains — powered by Apache Tika. True content-based type detection (extensions lie), provenance claims (authors, dates, creating application), revision and tamper signals (PDF incremental updates, tracked changes, hidden slides, zip integrity), hidden and embedded content (attachments, macros), risk indicators (PDF JavaScript actions, encryption), and content digests. Evidence gathering, not verdicts: Tika reports what the file asserts and what parsing observed; it does not attribute authorship or validate signatures. Use for triaging suspicious files, provenance questions, e-discovery-style review, or "is this file what it claims to be."

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Working with tika-metadata-schema, the build-gated registry of Tika metadata keys — regeneration after Property changes, gate tests, naming conventions, post-rename sweeps. Use when adding or renaming metadata keys or when the schema gate fails.

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Taking a multi-PR feature from "shape unknown" to merged without five review rounds per PR: spike until interfaces stop moving, write the contract, cut PRs along contract seams, one review per PR. Use when starting a feature that touches more than one lifecycle object or public interface, when a PR review keeps changing interfaces, or when splitting a large branch.

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Run Tika's OSS-Fuzz Jazzer targets locally against a working-tree checkout — build the image, build fuzzers from local source, fuzz a target, run a corpus as a regression pass, reproduce a crash, and add seeds. Use for "fuzz the OneNote parser", "run OneNoteParserFuzzer against these files", "reproduce an OSS-Fuzz crash", "fuzz my branch before merge".

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Turn almost any file into Markdown plus metadata — PDF, Office, HTML, email, archives, images, audio/video, 1000+ formats — powered by Apache Tika, either via the tika-app CLI (zero setup, one file) or a running tika-server (curl, warm process, many calls). Leads with rmeta (structured, embedded-item-aware output) as the default operation rather than flat concatenated text, since you can't tell whether a file has embedded content from its extension. Covers metadata-only triage, type and language detection, OCR, and output-size discipline for agent context. Use whenever a task involves reading the content of a file whose format you don't want to hand-parse.

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Compare extracts from two Tika builds over a corpus to detect regressions in content, encoding, exceptions, and embedded-document handling. Use for "compare before/after extracts", "eval this change against the corpus".

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Ground rules for working in the Tika codebase — git policy, Maven wrapper/repo conventions, building and testing specific modules, code and test conventions, pre-commit checks. Load at session start for any Tika development task.

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Review of a PR, branch, or your own uncommitted work across eight dimensions — security, correctness, test coverage, API/compatibility, usability, documentation, code quality, performance. Sizes the diff, reviews inline or fans out reviewers off a shared brief, verifies findings against code, reports a grouped list with a shape verdict, fixes on approval. Use for "review this PR", "/pr-review 3011", or a pre-flight self-review before submitting; add "thorough" for adversarial verification.

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Guide for running, reviewing, and fixing test failures across grails-core modules using Gradle test reports

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Guide for running, interpreting, and fixing code style and analysis violations in grails-core using GrailsCodeStylePlugin, GrailsCodeAnalysisPlugin, and GrailsViolationAggregationPlugin - covering CodeNarc, Checkstyle, PMD, SpotBugs, and JaCoCo

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Guide for developing on the Java 21 baseline, including modern features, best practices, and integration with Groovy/Grails projects

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Guide for working in the grails-data-hibernate7 module, especially Hibernate 7 domain binding, mapping migration, generators, and integration tests. Use this when changing code or tests under grails-data-hibernate7.

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Expert guide for Gradle 9 builds in apache/grails-core on the 8.0.x line - multi-project topology, convention plugins, BOM platforms, dependency rules, task configuration hygiene, and repo-specific patterns that override generic Gradle docs

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Comprehensive guide for Grails development, covering web applications, REST APIs, GORM, controllers, services, views, plugins, and testing with Spock and Geb

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Guide for upgrading Grails applications from Grails 7.x to Grails 8, covering Java 21, Groovy 5 name resolution and static compilation, Spring Boot 4.1, Spring Framework 7, dependency management, Micronaut, Jackson 3, Hibernate 7, TagLibs, testing, content negotiation, asset pipeline wildcard paths, and validation behavior changes

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Expert guide for Groovy 5 development, covering concise syntax, closures, DSLs, metaprogramming, static compilation, and integration with Java 21 and Grails

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Step-by-step process for merging a previously-standalone Grails plugin repository (e.g. grails-spring-security, grails-redis) into the grails-core monorepo as one or more Gradle subprojects, wiring it into the shared build, publishing, docs, and CI the same way the existing modules are.

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Analyze Gluten ANSI-mode test results (run dev/verify-ansi-expressions.sh, parse JSON tracker output, produce root-cause analysis and fix recommendations). Trigger on user requests like "analyze ANSI tests", "run ANSI matrix", "why is this ANSI test failing".

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Use when running or planning an Apache Struts release on any maintenance line (6.x, 7.x) - cutting the tag, staging artifacts, opening the vote, promoting, updating the site and announcing - or when asked what the next step in a release is.

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Use when preparing, updating, or reviewing the release documentation for a Struts release or release candidate on any maintenance line (6.x, 7.x) - the Version Notes page on the cwiki, its Migration Guide entry, the GitHub release notes, and the test-build announcement mail.

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Use when drafting, updating, or reviewing an S2-XXX security bulletin on the Struts cwiki, when preparing bulletin text ahead of a CVE request, when filling a CVE record in the ASF CVE tool (cveprocess.apache.org / Vulnogram), when deciding when to publish, when publishing a bulletin and announcing it to the ASF lists, when wrapping up after the advisory mails, or when deciding how much detail about a fixed vulnerability is safe to publish.

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Use when opening the formal release vote for a Struts release candidate on any maintenance line (6.x, 7.x) - composing and drafting the [VOTE] Apache Struts X.Y.Z mail to dev@ once the Version Notes page, GitHub release and staged artifacts are published.

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Apache Struts pull request review guide. Use when reviewing pull requests in this repository to check test conventions, security-sensitive framework code, PR and commit hygiene, and Struts-specific implementation patterns.

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Use when a vulnerability or security report arrives for triage, when assessing a CVE/RCE/OGNL/injection claim against the code, or when drafting a reply to a security researcher — to research the claim from source without trusting the reporter and without fabricating your own facts.

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