# X algorithm transparency and code release > Live situation record from CLSTR: https://clstr.news/situations/x-algorithm-transparency-and-code-release > Updated: 2026-08-15T11:31:57.000Z. Sources: 10. Developments: 2. X has initiated a transparency effort by releasing the source code for its ‘For You’ recommendation timeline on GitHub under an Apache 2.0 license. The codebase includes the ‘Phoenix’ ranking system, model configurations, and the specific weights assigned to engagement signals. According to Keith Coleman, X’s Vice President of Product, the release is approximately 10 to 15 times larger than previous disclosures, offering insight into how posts are scored, selected, and filtered. Parallel to the code release, the company is testing an ‘Under the Hood’ tool to address concerns regarding visibility reduction or ‘shadowbanning’. A limited test group of eligible users can download a JSON file containing aggregated data from the previous month to determine if specific labels or ranking systems have impacted their reach. While the ranking logic is being disclosed, X noted that certain safety systems using Grok to assess rule violations will remain private to prevent bad actors from bypassing moderation. ## Timeline ### 2026-08-15: X releases For You timeline source code on GitHub X has open-sourced its ‘For You’ timeline ranking code on GitHub and is testing tools to let users check if their accounts have been shadowbanned via JSON data downloads. 2 sources. https://clstr.news/cluster/x-releases-for-you-timeline-source-code-on-github ### 2026-08-13: X releases expanded recommendation algorithm code and transparency tool X has released an expanded portion of its recommendation algorithm code on GitHub and is testing a new tool to help users detect if their posts have been subject to visibility restrictions or shadowbans. 8 sources. https://clstr.news/cluster/x-releases-ranking-algorithm-and-tests-shadowban-detection-tool --- Cite as: X algorithm transparency and code release. CLSTR, https://clstr.news/situations/x-algorithm-transparency-and-code-release