detached 5f8ce64

fix: suppress skill self-shadowing warnings

commit
5f8ce64f751ffacc6a2a6671a2dc02ac07a74fdf
author
patriceckhart · · 2026-09-17 05:40 UTC
parent
860c2f8
signature
unsigned
refs
tag: v0.3.77
3 files · +79 -2
Unified
UnifiedSplit
M docs/skills.md +5 -2
@@ -71,8 +71,11 @@ Only files named exactly `SKILL.md` are read.
7171
7272 Extensions namespace their skills, for example `git-tools:writing-git-commits`.
7373 Explicit `--ext` bundles take precedence over environment, project, global, and
74-compatibility sources. Duplicate names keep the higher-precedence file and
75-report a diagnostic. `--no-ext` omits implicit extension bundles;
74+compatibility sources. Duplicate names from different files keep the
75+higher-precedence file and report a diagnostic. Rediscovering the same file
76+under the same skill name (including through a symlink) is silently ignored.
77+This includes overlapping project and global locations when running from your
78+home directory. `--no-ext` omits implicit extension bundles;
7679 `--no-ext --ext PATH` loads only the explicitly named bundle. `--no-skill`
7780 disables all skills, including extension and built-in skills.
7881
@@ -71,8 +71,11 @@ Only files named exactly `SKILL.md` are read.
71 71
72 Extensions namespace their skills, for example `git-tools:writing-git-commits`.72 Extensions namespace their skills, for example `git-tools:writing-git-commits`.
73 Explicit `--ext` bundles take precedence over environment, project, global, and73 Explicit `--ext` bundles take precedence over environment, project, global, and
74-compatibility sources. Duplicate names keep the higher-precedence file and74+compatibility sources. Duplicate names from different files keep the
75-report a diagnostic. `--no-ext` omits implicit extension bundles;75+higher-precedence file and report a diagnostic. Rediscovering the same file
76+under the same skill name (including through a symlink) is silently ignored.
77+This includes overlapping project and global locations when running from your
78+home directory. `--no-ext` omits implicit extension bundles;
76 `--no-ext --ext PATH` loads only the explicitly named bundle. `--no-skill`79 `--no-ext --ext PATH` loads only the explicitly named bundle. `--no-skill`
77 disables all skills, including extension and built-in skills.80 disables all skills, including extension and built-in skills.
78 81
M packages/agent/skills/skills.go +14 -0
@@ -140,6 +140,9 @@ func DiscoverSources(sources []Source, includeBuiltins bool) ([]*Skill, []error)
140140 errs = append(errs, scanErrs...)
141141 for _, s := range found {
142142 if prior, dup := seen[s.Name]; dup {
143+ if sameSkillFile(prior.Path, s.Path) {
144+ continue
145+ }
143146 errs = append(errs, fmt.Errorf("skill %q shadowed: selected %s; ignored %s", s.Name, prior.Path, s.Path))
144147 continue
145148 }
@@ -163,6 +166,17 @@ func DiscoverSources(sources []Source, includeBuiltins bool) ([]*Skill, []error)
163166 return out, errs
164167 }
165168
169+// sameSkillFile distinguishes repeated discovery from a genuine name conflict.
170+// Stat follows symlinks, and SameFile also handles filesystem path aliases.
171+func sameSkillFile(a, b string) bool {
172+ if a == b {
173+ return true
174+ }
175+ aInfo, aErr := os.Stat(a)
176+ bInfo, bErr := os.Stat(b)
177+ return aErr == nil && bErr == nil && os.SameFile(aInfo, bInfo)
178+}
179+
166180 func scanSource(source Source) ([]*Skill, []error) {
167181 var out []*Skill
168182 var errs []error
@@ -140,6 +140,9 @@ func DiscoverSources(sources []Source, includeBuiltins bool) ([]*Skill, []error)
140 errs = append(errs, scanErrs...)140 errs = append(errs, scanErrs...)
141 for _, s := range found {141 for _, s := range found {
142 if prior, dup := seen[s.Name]; dup {142 if prior, dup := seen[s.Name]; dup {
143+ if sameSkillFile(prior.Path, s.Path) {
144+ continue
145+ }
143 errs = append(errs, fmt.Errorf("skill %q shadowed: selected %s; ignored %s", s.Name, prior.Path, s.Path))146 errs = append(errs, fmt.Errorf("skill %q shadowed: selected %s; ignored %s", s.Name, prior.Path, s.Path))
144 continue147 continue
145 }148 }
@@ -163,6 +166,17 @@ func DiscoverSources(sources []Source, includeBuiltins bool) ([]*Skill, []error)
163 return out, errs166 return out, errs
164 }167 }
165 168
169+// sameSkillFile distinguishes repeated discovery from a genuine name conflict.
170+// Stat follows symlinks, and SameFile also handles filesystem path aliases.
171+func sameSkillFile(a, b string) bool {
172+ if a == b {
173+ return true
174+ }
175+ aInfo, aErr := os.Stat(a)
176+ bInfo, bErr := os.Stat(b)
177+ return aErr == nil && bErr == nil && os.SameFile(aInfo, bInfo)
178+}
179+
166 func scanSource(source Source) ([]*Skill, []error) {180 func scanSource(source Source) ([]*Skill, []error) {
167 var out []*Skill181 var out []*Skill
168 var errs []error182 var errs []error
M packages/agent/skills/skills_test.go +60 -0
@@ -169,6 +169,66 @@ func TestDiscoverSourcesRecursiveAndPrefixed(t *testing.T) {
169169 }
170170 }
171171
172+func TestDiscoverSourcesHomeDirectoryOverlap(t *testing.T) {
173+ t.Setenv("ZOT_AGENT_SKILLS", "")
174+ home := t.TempDir()
175+ for _, compat := range []string{".agents", ".claude"} {
176+ dir := filepath.Join(home, compat, "skills", "review")
177+ if err := os.MkdirAll(dir, 0o755); err != nil {
178+ t.Fatal(err)
179+ }
180+ if err := os.WriteFile(filepath.Join(dir, "SKILL.md"), []byte("---\nname: "+compat[1:]+"-review\n---\nbody"), 0o644); err != nil {
181+ t.Fatal(err)
182+ }
183+ }
184+ got, errs := DiscoverSources(SearchSources(t.TempDir(), home, home), false)
185+ if len(got) != 2 || len(errs) != 0 {
186+ t.Fatalf("skills=%#v errs=%v", got, errs)
187+ }
188+ for _, s := range got {
189+ if !strings.HasPrefix(s.Source, "project") {
190+ t.Errorf("source = %q, want project precedence", s.Source)
191+ }
192+ }
193+}
194+
195+func TestDiscoverSourcesSameFile(t *testing.T) {
196+ root := t.TempDir()
197+ path := filepath.Join(root, "SKILL.md")
198+ if err := os.WriteFile(path, []byte("---\nname: review\n---\nbody"), 0o644); err != nil {
199+ t.Fatal(err)
200+ }
201+ for _, second := range []string{root, path} {
202+ got, errs := DiscoverSources([]Source{{Root: root, Label: "first"}, {Root: second, Label: "second"}}, false)
203+ if len(got) != 1 || len(errs) != 0 || got[0].Source != "first" {
204+ t.Fatalf("second=%q skills=%#v errs=%v", second, got, errs)
205+ }
206+ }
207+ got, errs := DiscoverSources([]Source{{Root: root, Prefix: "one:"}, {Root: root, Prefix: "two:"}}, false)
208+ if len(got) != 2 || len(errs) != 0 || got[0].Name != "one:review" || got[1].Name != "two:review" {
209+ t.Fatalf("namespaced skills=%#v errs=%v", got, errs)
210+ }
211+}
212+
213+func TestDiscoverSourcesSameFileSymlink(t *testing.T) {
214+ root := t.TempDir()
215+ path := filepath.Join(root, "SKILL.md")
216+ if err := os.WriteFile(path, []byte("---\nname: review\n---\nbody"), 0o644); err != nil {
217+ t.Fatal(err)
218+ }
219+ alias := filepath.Join(t.TempDir(), "SKILL.md")
220+ if err := os.Symlink(path, alias); err != nil {
221+ if runtime.GOOS == "windows" {
222+ t.Skipf("symlinks unavailable: %v", err)
223+ }
224+ t.Fatal(err)
225+ }
226+ got, errs := DiscoverSources([]Source{{Root: root, Label: "first"}, {Root: alias}}, false)
227+ if len(got) != 1 || len(errs) != 0 || got[0].Source != "first" {
228+ t.Fatalf("skills=%#v errs=%v", got, errs)
229+ }
230+}
231+
172232 func TestDiscoverSourcesDuplicateDiagnostic(t *testing.T) {
173233 a, b := t.TempDir(), t.TempDir()
174234 for _, root := range []string{a, b} {
@@ -169,6 +169,66 @@ func TestDiscoverSourcesRecursiveAndPrefixed(t *testing.T) {
169 }169 }
170 }170 }
171 171
172+func TestDiscoverSourcesHomeDirectoryOverlap(t *testing.T) {
173+ t.Setenv("ZOT_AGENT_SKILLS", "")
174+ home := t.TempDir()
175+ for _, compat := range []string{".agents", ".claude"} {
176+ dir := filepath.Join(home, compat, "skills", "review")
177+ if err := os.MkdirAll(dir, 0o755); err != nil {
178+ t.Fatal(err)
179+ }
180+ if err := os.WriteFile(filepath.Join(dir, "SKILL.md"), []byte("---\nname: "+compat[1:]+"-review\n---\nbody"), 0o644); err != nil {
181+ t.Fatal(err)
182+ }
183+ }
184+ got, errs := DiscoverSources(SearchSources(t.TempDir(), home, home), false)
185+ if len(got) != 2 || len(errs) != 0 {
186+ t.Fatalf("skills=%#v errs=%v", got, errs)
187+ }
188+ for _, s := range got {
189+ if !strings.HasPrefix(s.Source, "project") {
190+ t.Errorf("source = %q, want project precedence", s.Source)
191+ }
192+ }
193+}
194+
195+func TestDiscoverSourcesSameFile(t *testing.T) {
196+ root := t.TempDir()
197+ path := filepath.Join(root, "SKILL.md")
198+ if err := os.WriteFile(path, []byte("---\nname: review\n---\nbody"), 0o644); err != nil {
199+ t.Fatal(err)
200+ }
201+ for _, second := range []string{root, path} {
202+ got, errs := DiscoverSources([]Source{{Root: root, Label: "first"}, {Root: second, Label: "second"}}, false)
203+ if len(got) != 1 || len(errs) != 0 || got[0].Source != "first" {
204+ t.Fatalf("second=%q skills=%#v errs=%v", second, got, errs)
205+ }
206+ }
207+ got, errs := DiscoverSources([]Source{{Root: root, Prefix: "one:"}, {Root: root, Prefix: "two:"}}, false)
208+ if len(got) != 2 || len(errs) != 0 || got[0].Name != "one:review" || got[1].Name != "two:review" {
209+ t.Fatalf("namespaced skills=%#v errs=%v", got, errs)
210+ }
211+}
212+
213+func TestDiscoverSourcesSameFileSymlink(t *testing.T) {
214+ root := t.TempDir()
215+ path := filepath.Join(root, "SKILL.md")
216+ if err := os.WriteFile(path, []byte("---\nname: review\n---\nbody"), 0o644); err != nil {
217+ t.Fatal(err)
218+ }
219+ alias := filepath.Join(t.TempDir(), "SKILL.md")
220+ if err := os.Symlink(path, alias); err != nil {
221+ if runtime.GOOS == "windows" {
222+ t.Skipf("symlinks unavailable: %v", err)
223+ }
224+ t.Fatal(err)
225+ }
226+ got, errs := DiscoverSources([]Source{{Root: root, Label: "first"}, {Root: alias}}, false)
227+ if len(got) != 1 || len(errs) != 0 || got[0].Source != "first" {
228+ t.Fatalf("skills=%#v errs=%v", got, errs)
229+ }
230+}
231+
172 func TestDiscoverSourcesDuplicateDiagnostic(t *testing.T) {232 func TestDiscoverSourcesDuplicateDiagnostic(t *testing.T) {
173 a, b := t.TempDir(), t.TempDir()233 a, b := t.TempDir(), t.TempDir()
174 for _, root := range []string{a, b} {234 for _, root := range []string{a, b} {

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