diff --git a/pkg/httpmock/legacy.go b/pkg/httpmock/legacy.go
index ad92d0572..05938768e 100644
--- a/pkg/httpmock/legacy.go
+++ b/pkg/httpmock/legacy.go
@@ -6,6 +6,7 @@ import (
 
 // TODO: clean up methods in this file when there are no more callers
 
+// StubRepoInfoResponse registers a stub for the RepositoryInfo GraphQL query.
 func (r *Registry) StubRepoInfoResponse(owner, repo, branch string) {
 	r.Register(
 		GraphQL(`query RepositoryInfo\b`),
@@ -22,14 +23,17 @@ func (r *Registry) StubRepoInfoResponse(owner, repo, branch string) {
 		`, repo, owner, branch)))
 }
 
+// StubRepoResponse registers a stub for the RepositoryNetwork GraphQL query with WRITE permission.
 func (r *Registry) StubRepoResponse(owner, repo string) {
 	r.StubRepoResponseWithPermission(owner, repo, "WRITE")
 }
 
+// StubRepoResponseWithPermission registers a stub for the RepositoryNetwork GraphQL query with the given permission.
 func (r *Registry) StubRepoResponseWithPermission(owner, repo, permission string) {
 	r.Register(GraphQL(`query RepositoryNetwork\b`), StringResponse(RepoNetworkStubResponse(owner, repo, "master", permission)))
 }
 
+// RepoNetworkStubResponse returns a JSON string representing a RepositoryNetwork GraphQL response.
 func RepoNetworkStubResponse(owner, repo, defaultBranch, permission string) string {
 	return fmt.Sprintf(`
 		{ "data": { "repo_000": {
diff --git a/pkg/httpmock/registry.go b/pkg/httpmock/registry.go
index b7c5a117d..5445af419 100644
--- a/pkg/httpmock/registry.go
+++ b/pkg/httpmock/registry.go
@@ -15,12 +15,14 @@ func ReplaceTripper(client *http.Client, reg *Registry) {
 	client.Transport = reg
 }
 
+// Registry tracks HTTP stubs and records requests for verification in tests.
 type Registry struct {
 	mu       sync.Mutex
 	stubs    []*Stub
 	Requests []*http.Request
 }
 
+// Register adds a new stub with the given matcher and responder to the registry.
 func (r *Registry) Register(m Matcher, resp Responder) {
 	r.stubs = append(r.stubs, &Stub{
 		Stack:     string(debug.Stack()),
@@ -29,6 +31,7 @@ func (r *Registry) Register(m Matcher, resp Responder) {
 	})
 }
 
+// Exclude registers a stub that causes the test to fail if a matching HTTP request is made.
 func (r *Registry) Exclude(t *testing.T, m Matcher) {
 	registrationStack := string(debug.Stack())
 
@@ -52,11 +55,13 @@ func (r *Registry) Exclude(t *testing.T, m Matcher) {
 	r.stubs = append(r.stubs, excludedStub)
 }
 
+// Testing is an interface for test error reporting used by Verify.
 type Testing interface {
 	Errorf(string, ...interface{})
 	Helper()
 }
 
+// Verify reports an error if any registered stubs were not matched by an HTTP request.
 func (r *Registry) Verify(t Testing) {
 	var unmatchedStubStacks []string
 	for _, s := range r.stubs {
diff --git a/pkg/httpmock/stub.go b/pkg/httpmock/stub.go
index a5444b2c8..63d7621af 100644
--- a/pkg/httpmock/stub.go
+++ b/pkg/httpmock/stub.go
@@ -13,9 +13,13 @@ import (
 	"github.com/cli/go-gh/v2/pkg/api"
 )
 
+// Matcher is a function that reports whether an HTTP request matches a stub.
 type Matcher func(req *http.Request) bool
+
+// Responder is a function that generates an HTTP response for a matched request.
 type Responder func(req *http.Request) (*http.Response, error)
 
+// Stub pairs a Matcher with a Responder and tracks whether the stub has been matched.
 type Stub struct {
 	Stack     string
 	matched   bool
@@ -24,6 +28,7 @@ type Stub struct {
 	exclude   bool
 }
 
+// MatchAny is a Matcher that matches every HTTP request.
 func MatchAny(*http.Request) bool {
 	return true
 }
@@ -41,6 +46,7 @@ func REST(method, p string) Matcher {
 	}
 }
 
+// GraphQL returns a Matcher that matches POST requests to the GraphQL endpoint whose query matches the given regex.
 func GraphQL(q string) Matcher {
 	re := regexp.MustCompile(q)
 
@@ -61,6 +67,7 @@ func GraphQL(q string) Matcher {
 	}
 }
 
+// GraphQLMutationMatcher returns a Matcher for GraphQL mutations whose query matches the regex and whose input satisfies cb.
 func GraphQLMutationMatcher(q string, cb func(map[string]interface{}) bool) Matcher {
 	re := regexp.MustCompile(q)
 
@@ -88,6 +95,7 @@ func GraphQLMutationMatcher(q string, cb func(map[string]interface{}) bool) Matc
 	}
 }
 
+// QueryMatcher returns a Matcher that matches REST requests by method, path, and query parameters.
 func QueryMatcher(method string, path string, query url.Values) Matcher {
 	return func(req *http.Request) bool {
 		if !REST(method, path)(req) {
@@ -121,18 +129,21 @@ func decodeJSONBody(req *http.Request, dest interface{}) error {
 	return json.Unmarshal(b, dest)
 }
 
+// StringResponse returns a Responder that replies with a 200 status and the given string body.
 func StringResponse(body string) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		return httpResponse(200, req, bytes.NewBufferString(body)), nil
 	}
 }
 
+// BinaryResponse returns a Responder that replies with a 200 status and the given byte slice body.
 func BinaryResponse(body []byte) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		return httpResponse(200, req, bytes.NewBuffer(body)), nil
 	}
 }
 
+// WithHost wraps a Matcher to additionally require the request host to match the given host.
 func WithHost(matcher Matcher, host string) Matcher {
 	return func(req *http.Request) bool {
 		if !strings.EqualFold(req.Host, host) {
@@ -142,6 +153,7 @@ func WithHost(matcher Matcher, host string) Matcher {
 	}
 }
 
+// WithHeader wraps a Responder to add the specified header to the response.
 func WithHeader(responder Responder, header string, value string) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		resp, _ := responder(req)
@@ -153,12 +165,14 @@ func WithHeader(responder Responder, header string, value string) Responder {
 	}
 }
 
+// StatusStringResponse returns a Responder that replies with the given status code and string body.
 func StatusStringResponse(status int, body string) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		return httpResponse(status, req, bytes.NewBufferString(body)), nil
 	}
 }
 
+// JSONResponse returns a Responder that JSON-encodes the given value and replies with a 200 status.
 func JSONResponse(body interface{}) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		b, _ := json.Marshal(body)
@@ -188,6 +202,7 @@ func JSONErrorResponse(status int, err api.HTTPError) Responder {
 	return StatusJSONResponse(status, err)
 }
 
+// FileResponse returns a Responder that replies with the contents of the named file.
 func FileResponse(filename string) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		f, err := os.Open(filename)
@@ -198,6 +213,7 @@ func FileResponse(filename string) Responder {
 	}
 }
 
+// RESTPayload returns a Responder that decodes the JSON request body, passes it to cb, and replies with the given status and body.
 func RESTPayload(responseStatus int, responseBody string, cb func(payload map[string]interface{})) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		bodyData := make(map[string]interface{})
@@ -214,6 +230,7 @@ func RESTPayload(responseStatus int, responseBody string, cb func(payload map[st
 	}
 }
 
+// GraphQLMutation returns a Responder that decodes a GraphQL mutation's input variables, passes them to cb, and replies with body.
 func GraphQLMutation(body string, cb func(map[string]interface{})) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		var bodyData struct {
@@ -231,6 +248,7 @@ func GraphQLMutation(body string, cb func(map[string]interface{})) Responder {
 	}
 }
 
+// GraphQLQuery returns a Responder that decodes a GraphQL query and its variables, passes them to cb, and replies with body.
 func GraphQLQuery(body string, cb func(string, map[string]interface{})) Responder {
 	return func(req *http.Request) (*http.Response, error) {
 		var bodyData struct {