Retool
Retool is retiring standalone Assist while folding the same capability into the app builder.
Comparison · Infra & APIs
CBTF vs inti
A side-by-side editorial comparison of CBTF and inti — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:r-package
CBTF vs inti: at a glance
What is CBTF?
A fuzzer for R packages that grew from one argument at a time to parallel runs across whole namespaces.
CBTF throws deliberately problematic inputs at exported functions and reports which ones error, warn, or survive. It now covers 85 input classes, fuzzes multiple named arguments per call, runs in parallel with a per-function timeout, and reports results as a classed object with print, summary, length, and whitelist methods for pruning false positives. Output control has been refined repeatedly — the latest release adds grouping by input or by function and a summary-only mode.
What is inti?
inti keeps compounding small statistics and publishing tools for plant-science labs.
inti bundles the tooling a plant-science lab uses end to end: the Yupana analysis app, the Tarpuy experiment planner, scihub and rticle document rendering, and helpers for ANOVA and heritability. The 0.7.x line has been dominated by one thread, a PCA sub-module in Yupana carrying variable contribution, dimension correlation, supplementary variables and per-dimension selection. Releases are cumulative: 0.7.0, 0.7.1 and 0.7.2 all restate the same PCA lines, with each tag adding a few items on top, and 0.7.0 itself is split across two tags published 35 seconds apart.
CBTF vs inti: editorial side-by-side
CBTF
0.0INFRA · APIS
A fuzzer for R packages that grew from one argument at a time to parallel runs across whole namespaces.
◆ Current state
CBTF throws deliberately problematic inputs at exported functions and reports which ones error, warn, or survive. It now covers 85 input classes, fuzzes multiple named arguments per call, runs in parallel with a per-function timeout, and reports results as a classed object with print, summary, length, and whitelist methods for pruning false positives. Output control has been refined repeatedly — the latest release adds grouping by input or by function and a summary-only mode.
◆ Where it's heading
The package has moved from a script-shaped tool to a test-suite component. The single-argument, sequential fuzz() of the early releases could not finish a large namespace or survive a function that simply hangs; the mirai rewrite fixed both, and multi-argument support widened what a run can actually reach. Nearly everything since has gone into making results triageable rather than merely produced: whitelisting, result classes, grouping, and terminal output that fits real function signatures. Note that the 0.1.0 through 0.3.0 entries carry backfilled timestamps recorded in reverse order within under a minute, so their published dates do not reflect release order.
◆ Prediction
The steady expansion of the input catalogue from 70 to 85 with a new time class suggests more input classes are the cheapest next win; the reporting surface is now detailed enough that machine-readable output for CI would be the natural follow-on.
inti
2.5INFRA · APIS
inti keeps compounding small statistics and publishing tools for plant-science labs.
◆ Current state
inti bundles the tooling a plant-science lab uses end to end: the Yupana analysis app, the Tarpuy experiment planner, scihub and rticle document rendering, and helpers for ANOVA and heritability. The 0.7.x line has been dominated by one thread, a PCA sub-module in Yupana carrying variable contribution, dimension correlation, supplementary variables and per-dimension selection. Releases are cumulative: 0.7.0, 0.7.1 and 0.7.2 all restate the same PCA lines, with each tag adding a few items on top, and 0.7.0 itself is split across two tags published 35 seconds apart.
◆ Where it's heading
Two axes are moving. Analysis is deepening inside Yupana, where PCA went from a single view to a sub-module with its own contribution and correlation outputs across three tags. Publishing is widening around rticle() and scihub(), which now handle Google Docs markdown, crossrefs and page numbers, continuing the gdocs2qmd work from the 0.6 line. Neither is a change of direction; the package accretes features where the maintainer's own research workflow needs them.
◆ Prediction
Expect the next tag to extend the PCA sub-module again and add another rticle() or scihub() rendering detail, on the two-to-six-week cadence the 0.7 line has held.
Alternatives to CBTF and inti
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either CBTF or inti.
WPML
WPML made machine translation the default, and its point releases keep chasing WordPress and page builders.
forestploter
A forest plot package that keeps handing users control of one more graphical detail.
ggInterval
Interval-valued data plotting, spending 2026 making its function names and examples survive CRAN.
rgm
A microbiome network model that got itself un-archived by deleting the dependency that killed it.
contagionchannels
Three releases in ten days, every one of them a CRAN reviewer's correction rather than a code change.
Recent activity from CBTF and inti
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 22d agointiscihub() gains pages, rticle() improves crossrefs
- 1mo agoCBTFTime inputs added; results groupable by input or function
- 1mo agointi0.7.1 restates the 0.7.0 PCA and Tarpuy notes
- 2mo agointiPCA sub-module adds contribution and dimension correlation
- 2mo agointiNew rticle() renders Google Docs markdown into articles
- 6mo agoCBTFParallel fuzzing with timeouts, and multi-argument support ⚡
- 10mo agointiH2cal() takes factors as a formula; scihub() templates updated
- 11mo agointiSciHub RStudio addin arrives; gdocs2qmd table export fixed
- 0y agoCBTFWhitelisting for false positives, plus clearer result semantics
- 1y agoCBTFFunction discovery skips unfuzzable functions; failures no longer crash
- 1y agoCBTFFirst release; notes carry only a website link
- 1y agoCBTFRaw results returned as an object with summary and print methods
Frequently asked questions
What is the difference between CBTF and inti?
Both compete on the same themes — r-package — within Infra & APIs. inti is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is CBTF better than inti?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. inti is currently shipping more aggressively (velocity 2.5 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to CBTF?
Top CBTF alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "CBTF alternatives" section above for the current picks, or visit /alternatives/caught-by-the-fuzz for the full list with editorial commentary on each.
What are the best alternatives to inti?
Top inti alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "inti alternatives" section above for the current picks, or visit /alternatives/inti for the full list with editorial commentary on each.