diff --git a/skills/sparv/.sparv/CHANGELOG.md b/skills/sparv/.sparv/CHANGELOG.md
deleted file mode 100644
index 1f7a40f..0000000
--- a/skills/sparv/.sparv/CHANGELOG.md
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@@ -1,7 +0,0 @@
-# Changelog
-
-All notable changes to this project will be documented in this file.
-Format based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
-
-## [Unreleased]
-
diff --git a/skills/sparv/.sparv/history/20260114-164058/journal.md b/skills/sparv/.sparv/history/20260114-164058/journal.md
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@@ -1,20 +0,0 @@
-# SPARV Journal
-Session: 20260114-164058
-Created: 2026-01-14 16:40
-
-## Plan
-<!-- Task breakdown, sub-issues, success criteria -->
-
-## Progress
-<!-- Auto-updated every 2 actions -->
-
-## Findings
-<!-- Learnings, patterns, discoveries -->
-
-## 16:40 - Action #2
-- Tool: Edit
-- Result: ok
-
-## Failure Protocol - 2026-01-14 16:40
-- level: 1
-- note: unit test flake
diff --git a/skills/sparv/.sparv/history/20260114-164058/state.yaml b/skills/sparv/.sparv/history/20260114-164058/state.yaml
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--- a/skills/sparv/.sparv/history/20260114-164058/state.yaml
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-session_id: "20260114-164058"
-current_phase: "specify"
-action_count: 2
-consecutive_failures: 0
-max_iterations: 12
-iteration_count: 0
-completion_promise: "All tests green"
-feature_name: ""
-ehrb_flags: []
diff --git a/skills/sparv/.sparv/history/20260115215314/journal.md b/skills/sparv/.sparv/history/20260115215314/journal.md
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index a64f9d0..0000000
--- a/skills/sparv/.sparv/history/20260115215314/journal.md
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@@ -1,17 +0,0 @@
-# SPARV Journal
-Session: 20260115215314
-Feature: test-feature
-Created: 2026-01-15 21:53
-
-## Plan
-<!-- Task breakdown, sub-issues, success criteria -->
-
-## Progress
-<!-- Auto-updated every 2 actions -->
-
-## Findings
-<!-- Learnings, patterns, discoveries -->
-
-## 21:53 - Action #2
-- Tool: Write
-- Result: test2
diff --git a/skills/sparv/.sparv/history/20260115215314/state.yaml b/skills/sparv/.sparv/history/20260115215314/state.yaml
deleted file mode 100644
index ec612e2..0000000
--- a/skills/sparv/.sparv/history/20260115215314/state.yaml
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@@ -1,9 +0,0 @@
-session_id: "20260115215314"
-feature_name: "test-feature"
-current_phase: "specify"
-action_count: 2
-consecutive_failures: 0
-max_iterations: 12
-iteration_count: 0
-completion_promise: ""
-ehrb_flags: []
diff --git a/skills/sparv/.sparv/history/20260115215722/journal.md b/skills/sparv/.sparv/history/20260115215722/journal.md
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index 1e3223b..0000000
--- a/skills/sparv/.sparv/history/20260115215722/journal.md
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@@ -1,29 +0,0 @@
-# SPARV Journal
-Session: 20260115215722
-Feature: detailed-test
-Created: 2026-01-15 21:57
-
-## Plan
-<!-- Task breakdown, sub-issues, success criteria -->
-
-## Progress
-<!-- Auto-updated every 2 actions -->
-
-## Findings
-<!-- Learnings, patterns, discoveries -->
-
-## 21:57 - Action #2
-- Tool: Edit
-- Result: file2
-
-## Failure Protocol - 2026-01-15 21:57
-- level: 1
-- note: first error
-
-## Failure Protocol - 2026-01-15 21:57
-- level: 2
-- note: second error
-
-## Failure Protocol - 2026-01-15 21:58
-- level: 3
-- note: third error
diff --git a/skills/sparv/.sparv/history/20260115215722/state.yaml b/skills/sparv/.sparv/history/20260115215722/state.yaml
deleted file mode 100644
index 4444ddc..0000000
--- a/skills/sparv/.sparv/history/20260115215722/state.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-session_id: "20260115215722"
-feature_name: "detailed-test"
-current_phase: "specify"
-action_count: 2
-consecutive_failures: 0
-max_iterations: 12
-iteration_count: 0
-completion_promise: ""
-ehrb_flags: []
diff --git a/skills/sparv/.sparv/history/20260115220023/journal.md b/skills/sparv/.sparv/history/20260115220023/journal.md
deleted file mode 100644
index 2d8ebc1..0000000
--- a/skills/sparv/.sparv/history/20260115220023/journal.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# SPARV Journal
-Session: 20260115220023
-Feature: new-after-archive
-Created: 2026-01-15 22:00
-
-## Plan
-<!-- Task breakdown, sub-issues, success criteria -->
-
-## Progress
-<!-- Auto-updated every 2 actions -->
-
-## Findings
-<!-- Learnings, patterns, discoveries -->
diff --git a/skills/sparv/.sparv/history/20260115220023/state.yaml b/skills/sparv/.sparv/history/20260115220023/state.yaml
deleted file mode 100644
index ed08703..0000000
--- a/skills/sparv/.sparv/history/20260115220023/state.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-session_id: "20260115220023"
-feature_name: "new-after-archive"
-current_phase: "specify"
-action_count: 0
-consecutive_failures: 0
-max_iterations: 12
-iteration_count: 0
-completion_promise: ""
-ehrb_flags: []
diff --git a/skills/sparv/.sparv/history/index.md b/skills/sparv/.sparv/history/index.md
deleted file mode 100644
index e53c5b3..0000000
--- a/skills/sparv/.sparv/history/index.md
+++ /dev/null
@@ -1,21 +0,0 @@
-# History Index
-
-This file records all completed sessions for traceability.
-
----
-
-## Index
-
-| Timestamp | Feature | Type | Status | Path |
-|-----------|---------|------|--------|------|
-
----
-
-## Monthly Archive
-
-
-### 2026-01
-
-- `20260115215314` - test-feature
-- `20260115215722` - detailed-test
-- `20260115220023` - new-after-archive
diff --git a/skills/sparv/.sparv/journal.md b/skills/sparv/.sparv/journal.md
deleted file mode 100644
index 7f2f200..0000000
--- a/skills/sparv/.sparv/journal.md
+++ /dev/null
@@ -1,16 +0,0 @@
-# SPARV Journal
-Session: 20260114-211748
-Created: 2026-01-14 21:17
-
-## Plan
-<!-- Task breakdown, sub-issues, success criteria -->
-
-## Progress
-<!-- Auto-updated every 2 actions -->
-
-## Findings
-<!-- Learnings, patterns, discoveries -->
-
-## 21:17 - Action #2
-- Tool: Write
-- Result: 测试写入
diff --git a/skills/sparv/.sparv/plan/20260115220038/journal.md b/skills/sparv/.sparv/plan/20260115220038/journal.md
deleted file mode 100644
index 14e0d2f..0000000
--- a/skills/sparv/.sparv/plan/20260115220038/journal.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# SPARV Journal
-Session: 20260115220038
-Feature: force-test
-Created: 2026-01-15 22:00
-
-## Plan
-<!-- Task breakdown, sub-issues, success criteria -->
-
-## Progress
-<!-- Auto-updated every 2 actions -->
-
-## Findings
-<!-- Learnings, patterns, discoveries -->
diff --git a/skills/sparv/.sparv/plan/20260115220038/state.yaml b/skills/sparv/.sparv/plan/20260115220038/state.yaml
deleted file mode 100644
index df223d9..0000000
--- a/skills/sparv/.sparv/plan/20260115220038/state.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-session_id: "20260115220038"
-feature_name: "force-test"
-current_phase: "specify"
-action_count: 0
-consecutive_failures: 0
-max_iterations: 12
-iteration_count: 0
-completion_promise: ""
-ehrb_flags: []
diff --git a/skills/sparv/.sparv/state.yaml b/skills/sparv/.sparv/state.yaml
deleted file mode 100644
index dbd9a39..0000000
--- a/skills/sparv/.sparv/state.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-session_id: "20260114-211748"
-current_phase: "specify"
-action_count: 2
-consecutive_failures: 0
-max_iterations: 12
-iteration_count: 0
-completion_promise: ""
-feature_name: ""
-ehrb_flags: []