diff --git a/DESCRIPTION b/DESCRIPTION
index 77337bd..b10be1e 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: GitAI
 Title: Extracts Knowledge From Git Repositories
-Version: 0.0.0.9002
+Version: 0.0.0.9003
 Authors@R: c(
     person("Kamil", "Wais", , "kamil.wais@gmail.com", role = c("aut", "cre")),
     person("Maciej", "Banas", , "banasmaciek@gmail.com", role = "aut")
diff --git a/NAMESPACE b/NAMESPACE
index 6ae9268..5573ed6 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,2 +1,9 @@
 # Generated by roxygen2: do not edit by hand
 
+export(add_files)
+export(initialize_project)
+export(process_repos)
+export(set_github_repos)
+export(set_gitlab_repos)
+export(set_llm)
+export(set_prompt)
diff --git a/R/add_files.R b/R/add_files.R
index a9cb468..10928ab 100644
--- a/R/add_files.R
+++ b/R/add_files.R
@@ -1,6 +1,9 @@
+#' Add files to `GitAI` object.
 #' @name add_files
+#' @param gitai A \code{GitAI} object.
 #' @param files A character vector of file paths. May be defined with
 #'   regular expression.
+#' @return A \code{GitAI} object.
 #' @export
 add_files <- function(gitai, files) {
   if (!is.null(files)) {
diff --git a/R/initialize_project.R b/R/initialize_project.R
index d58bfab..049ff63 100644
--- a/R/initialize_project.R
+++ b/R/initialize_project.R
@@ -1,4 +1,7 @@
-#' export
+#' Initialize a `GitAI` project.
+#' @param project_id A character, ID of the project.
+#' @return A \code{GitAI} object.
+#' @export
 initialize_project <- function(project_id) {
 
   GitAI$new(project_id = project_id)
diff --git a/R/process_repos.R b/R/process_repos.R
index 531413a..26cbe7a 100644
--- a/R/process_repos.R
+++ b/R/process_repos.R
@@ -1,8 +1,8 @@
+#' Run LLM on `GitAI` repositories content
 #' @name process_repos
-#' @param gitai A GitAI object.
-#'
+#' @param gitai A \code{GitAI} object.
+#' @return A list.
 #' @export
-
 process_repos <- function(gitai) {
 
   gitstats <- gitai$gitstats
diff --git a/R/set_llm.R b/R/set_llm.R
index 437c4e9..21ddff5 100644
--- a/R/set_llm.R
+++ b/R/set_llm.R
@@ -1,10 +1,17 @@
-#' export
-set_llm <- function(gitai, 
+#' Set Large Language Model in `GitAI` object.
+#' @name set_llm
+#' @param gitai A \code{GitAI} object.
+#' @param provider A LLM provider.
+#' @param model A LLM model.
+#' @param seed An integer to make results more reproducible.
+#' @return A \code{GitAI} object.
+#' @export
+set_llm <- function(gitai,
                     provider = "openai",
                     model = "gpt-4o-mini",
                     seed = NULL,
                     ...) {
-  
+
   if (provider == "openai") {
 
     gitai$llm <- elmer::chat_openai(
@@ -18,9 +25,14 @@ set_llm <- function(gitai,
   invisible(gitai)
 }
 
-#' export
+#' Set prompt.
+#' @name set_prompt
+#' @param gitati A \code{GitAI} object.
+#' @param system_prompt A system prompt.
+#' @return A \code{GitAI} object.
+#' @export
 set_prompt <- function(gitai, system_prompt) {
 
   gitai$system_prompt <- system_prompt
   invisible(gitai)
-}
\ No newline at end of file
+}
diff --git a/R/set_repos.R b/R/set_repos.R
index 0b0f823..4e8d71d 100644
--- a/R/set_repos.R
+++ b/R/set_repos.R
@@ -1,7 +1,9 @@
+#' Set GitHub repositories in `GitAI` object.
 #' @name set_github_repos
-#' @param gitai A GitAI object.
+#' @param gitai A \code{GitAI} object.
 #' @param host A character, GitHub host.
 #' @param repos A character vector or repositories full names.
+#' @return A \code{GitAI} object.
 #' @export
 set_github_repos <- function(gitai,
                              host = NULL,
@@ -20,10 +22,12 @@ set_github_repos <- function(gitai,
   invisible(gitai)
 }
 
+#' Set GitLab repositories in `GitAI` object.
 #' @name set_gitlab_repos
-#' @param gitai A GitAI object.
+#' @param gitai A \code{GitAI} object.
 #' @param host A character, GitLab host.
 #' @param repos A character vector or repositories full names.
+#' @return A \code{GitAI} object.
 #' @export
 set_gitlab_repos <- function(gitai,
                              host = NULL,
diff --git a/man/add_files.Rd b/man/add_files.Rd
new file mode 100644
index 0000000..a769de5
--- /dev/null
+++ b/man/add_files.Rd
@@ -0,0 +1,20 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/add_files.R
+\name{add_files}
+\alias{add_files}
+\title{Add files to \code{GitAI} object.}
+\usage{
+add_files(gitai, files)
+}
+\arguments{
+\item{gitai}{A \code{GitAI} object.}
+
+\item{files}{A character vector of file paths. May be defined with
+regular expression.}
+}
+\value{
+A \code{GitAI} object.
+}
+\description{
+Add files to \code{GitAI} object.
+}
diff --git a/man/initialize_project.Rd b/man/initialize_project.Rd
index 50d5692..92b7a90 100644
--- a/man/initialize_project.Rd
+++ b/man/initialize_project.Rd
@@ -2,10 +2,16 @@
 % Please edit documentation in R/initialize_project.R
 \name{initialize_project}
 \alias{initialize_project}
-\title{export}
+\title{Initialize a \code{GitAI} project.}
 \usage{
 initialize_project(project_id)
 }
+\arguments{
+\item{project_id}{A character, ID of the project.}
+}
+\value{
+A \code{GitAI} object.
+}
 \description{
-export
+Initialize a \code{GitAI} project.
 }
diff --git a/man/process_repos.Rd b/man/process_repos.Rd
new file mode 100644
index 0000000..e046de3
--- /dev/null
+++ b/man/process_repos.Rd
@@ -0,0 +1,17 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/process_repos.R
+\name{process_repos}
+\alias{process_repos}
+\title{Run LLM on \code{GitAI} repositories content}
+\usage{
+process_repos(gitai)
+}
+\arguments{
+\item{gitai}{A \code{GitAI} object.}
+}
+\value{
+A list.
+}
+\description{
+Run LLM on \code{GitAI} repositories content
+}
diff --git a/man/set_github_repos.Rd b/man/set_github_repos.Rd
new file mode 100644
index 0000000..f953822
--- /dev/null
+++ b/man/set_github_repos.Rd
@@ -0,0 +1,21 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/set_repos.R
+\name{set_github_repos}
+\alias{set_github_repos}
+\title{Set GitHub repositories in \code{GitAI} object.}
+\usage{
+set_github_repos(gitai, host = NULL, repos)
+}
+\arguments{
+\item{gitai}{A \code{GitAI} object.}
+
+\item{host}{A character, GitHub host.}
+
+\item{repos}{A character vector or repositories full names.}
+}
+\value{
+A \code{GitAI} object.
+}
+\description{
+Set GitHub repositories in \code{GitAI} object.
+}
diff --git a/man/set_gitlab_repos.Rd b/man/set_gitlab_repos.Rd
new file mode 100644
index 0000000..70740c4
--- /dev/null
+++ b/man/set_gitlab_repos.Rd
@@ -0,0 +1,21 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/set_repos.R
+\name{set_gitlab_repos}
+\alias{set_gitlab_repos}
+\title{Set GitLab repositories in \code{GitAI} object.}
+\usage{
+set_gitlab_repos(gitai, host = NULL, repos)
+}
+\arguments{
+\item{gitai}{A \code{GitAI} object.}
+
+\item{host}{A character, GitLab host.}
+
+\item{repos}{A character vector or repositories full names.}
+}
+\value{
+A \code{GitAI} object.
+}
+\description{
+Set GitLab repositories in \code{GitAI} object.
+}
diff --git a/man/set_llm.Rd b/man/set_llm.Rd
index dbd297f..7a1597e 100644
--- a/man/set_llm.Rd
+++ b/man/set_llm.Rd
@@ -2,10 +2,22 @@
 % Please edit documentation in R/set_llm.R
 \name{set_llm}
 \alias{set_llm}
-\title{export}
+\title{Set Large Language Model in \code{GitAI} object.}
 \usage{
-set_llm(gitai, provider = "openai", model = "gpt-4o-mini")
+set_llm(gitai, provider = "openai", model = "gpt-4o-mini", seed = NULL, ...)
+}
+\arguments{
+\item{gitai}{A \code{GitAI} object.}
+
+\item{provider}{A LLM provider.}
+
+\item{model}{A LLM model.}
+
+\item{seed}{An integer to make results more reproducible.}
+}
+\value{
+A \code{GitAI} object.
 }
 \description{
-export
+Set Large Language Model in \code{GitAI} object.
 }
diff --git a/man/set_prompt.Rd b/man/set_prompt.Rd
index 5bcf2f3..95dc4db 100644
--- a/man/set_prompt.Rd
+++ b/man/set_prompt.Rd
@@ -2,10 +2,18 @@
 % Please edit documentation in R/set_llm.R
 \name{set_prompt}
 \alias{set_prompt}
-\title{export}
+\title{Set prompt.}
 \usage{
 set_prompt(gitai, system_prompt)
 }
+\arguments{
+\item{system_prompt}{A system prompt.}
+
+\item{gitati}{A \code{GitAI} object.}
+}
+\value{
+A \code{GitAI} object.
+}
 \description{
-export
+Set prompt.
 }