diff --git a/src/tests.h b/src/tests.h
index 0280d2cd..e7adfbe3 100644
--- a/src/tests.h
+++ b/src/tests.h
@@ -6,12 +6,21 @@
 ** @{
 */
 
+/**
+** Options to control how tests are run.
+*/
 typedef struct _tf_test_options_t
 {
+	/** The path to the Tilde Friends executable, in order to run subprocesses. */
 	const char* exe_path;
+	/** A comma-separated list of tests to run, or NULL. */
 	const char* tests;
 } tf_test_options_t;
 
+/**
+** Run tests.
+** @param options Test options.
+*/
 void tf_tests(const tf_test_options_t* options);
 
 /** @} */
diff --git a/src/tlscontext.js.h b/src/tlscontext.js.h
index 23e2332d..18ae113d 100644
--- a/src/tlscontext.js.h
+++ b/src/tlscontext.js.h
@@ -8,10 +8,30 @@
 
 #include "quickjs.h"
 
+/**
+** A TLS context instance.
+*/
 typedef struct _tf_tls_context_t tf_tls_context_t;
 
+/**
+** Register TLS script interface.
+** @param context The TLS context.
+** @return the TlsContext constructor.
+*/
 JSValue tf_tls_context_register(JSContext* context);
+
+/**
+** Get a TLS context instance from its JS object.
+** @param value A TlsContext JS object.
+** @return The corresponding instance.
+*/
 tf_tls_context_t* tf_tls_context_get(JSValue value);
+
+/**
+** Get the number of active TLS context instances.
+** @return The number of TlsContext objects created that have not been
+** finalized.
+*/
 int tf_tls_context_get_count();
 
 /** @} */