diff --git a/plugins/ultraplan-local/CLAUDE.md b/plugins/ultraplan-local/CLAUDE.md
index e8f2bbd..e13b248 100644
--- a/plugins/ultraplan-local/CLAUDE.md
+++ b/plugins/ultraplan-local/CLAUDE.md
@@ -142,7 +142,7 @@ Doc-consistency test at `tests/lib/doc-consistency.test.mjs` pins agent-table co
 
 `hooks/scripts/session-title.mjs` (UserPromptSubmit, CC v2.1.94+) sets `sessionTitle` to `ultra:<command>:<slug>` for ultra-command invocations. Helps multi-session headless runs identify themselves in process lists.
 
-`hooks/scripts/post-bash-stats.mjs` (PostToolUse, CC v2.1.97+) appends `duration_ms` for each Bash call into `${CLAUDE_PLUGIN_DATA}/ultraexecute-stats.jsonl`. Useful for finding long-running verify or checkpoint commands.
+`hooks/scripts/post-bash-stats.mjs` (PostToolUse, CC v2.1.97+) appends `duration_ms` for each Bash call into `${CLAUDE_PLUGIN_DATA}/trekexecute-stats.jsonl`. Useful for finding long-running verify or checkpoint commands.
 
 `hooks/scripts/post-compact-flush.mjs` (PostCompact event, v3.4.0) re-injects `.session-state.local.json` after context compaction so multi-session work survives a compaction boundary. Companion to `pre-compact-flush.mjs` (which writes the state file before compaction); together they form the rehydrate cycle that keeps `/ultracontinue-local` reliable across long-running multi-session work.
 
@@ -222,11 +222,11 @@ Legacy paths (still work without `--project`):
 - Progress: `{plan-dir}/.ultraexecute-progress-{slug}.json`
 
 Stats:
-- Brief stats: `${CLAUDE_PLUGIN_DATA}/ultrabrief-stats.jsonl`
-- Plan stats: `${CLAUDE_PLUGIN_DATA}/ultraplan-stats.jsonl`
-- Exec stats: `${CLAUDE_PLUGIN_DATA}/ultraexecute-stats.jsonl`
-- Research stats: `${CLAUDE_PLUGIN_DATA}/ultraresearch-stats.jsonl`
-- Continue stats: `${CLAUDE_PLUGIN_DATA}/ultracontinue-stats.jsonl`
+- Brief stats: `${CLAUDE_PLUGIN_DATA}/trekbrief-stats.jsonl`
+- Plan stats: `${CLAUDE_PLUGIN_DATA}/trekplan-stats.jsonl`
+- Exec stats: `${CLAUDE_PLUGIN_DATA}/trekexecute-stats.jsonl`
+- Research stats: `${CLAUDE_PLUGIN_DATA}/trekresearch-stats.jsonl`
+- Continue stats: `${CLAUDE_PLUGIN_DATA}/trekcontinue-stats.jsonl`
 
 ## Terminology
 
diff --git a/plugins/ultraplan-local/agents/review-orchestrator.md b/plugins/ultraplan-local/agents/review-orchestrator.md
index 6071a5b..baef393 100644
--- a/plugins/ultraplan-local/agents/review-orchestrator.md
+++ b/plugins/ultraplan-local/agents/review-orchestrator.md
@@ -210,7 +210,7 @@ If validation fails, repair the file (most failures are fixable in place
 finding-ID). Do NOT proceed if any REVIEW_REQUIRED_FRONTMATTER field is
 missing.
 
-Append a stats line to `${CLAUDE_PLUGIN_DATA}/ultrareview-stats.jsonl`:
+Append a stats line to `${CLAUDE_PLUGIN_DATA}/trekreview-stats.jsonl`:
 ```json
 {"ts":"...","slug":"...","verdict":"BLOCK|WARN|ALLOW","counts":{"BLOCKER":N,"MAJOR":N,"MINOR":N,"SUGGESTION":N},"reviewed_files_count":N,"mode":"default|quick|validate|dry-run","duration_ms":N}
 ```
diff --git a/plugins/ultraplan-local/commands/trekbrief.md b/plugins/ultraplan-local/commands/trekbrief.md
index 021361e..b809c7b 100644
--- a/plugins/ultraplan-local/commands/trekbrief.md
+++ b/plugins/ultraplan-local/commands/trekbrief.md
@@ -654,7 +654,7 @@ Or:
 
 ## Phase 7 — Stats tracking
 
-Append one record to `${CLAUDE_PLUGIN_DATA}/ultrabrief-stats.jsonl`:
+Append one record to `${CLAUDE_PLUGIN_DATA}/trekbrief-stats.jsonl`:
 
 ```json
 {
diff --git a/plugins/ultraplan-local/commands/trekcontinue.md b/plugins/ultraplan-local/commands/trekcontinue.md
index da4be56..107a35b 100644
--- a/plugins/ultraplan-local/commands/trekcontinue.md
+++ b/plugins/ultraplan-local/commands/trekcontinue.md
@@ -286,7 +286,7 @@ disk. Cannot continue automatically.` and exit. Do not guess.
 
 ## Phase 5 — Stats tracking
 
-Append a one-line JSON record to `${CLAUDE_PLUGIN_DATA}/ultracontinue-stats.jsonl`
+Append a one-line JSON record to `${CLAUDE_PLUGIN_DATA}/trekcontinue-stats.jsonl`
 if the env var is set; silently skip otherwise.
 
 ```json
diff --git a/plugins/ultraplan-local/commands/trekexecute.md b/plugins/ultraplan-local/commands/trekexecute.md
index d530763..812640e 100644
--- a/plugins/ultraplan-local/commands/trekexecute.md
+++ b/plugins/ultraplan-local/commands/trekexecute.md
@@ -1468,7 +1468,7 @@ The `ultraexecute_summary` key makes it grep-able in log files from headless run
 
 ## Phase 9 — Stats tracking
 
-Append one record to `${CLAUDE_PLUGIN_DATA}/ultraexecute-stats.jsonl`:
+Append one record to `${CLAUDE_PLUGIN_DATA}/trekexecute-stats.jsonl`:
 
 ```json
 {
diff --git a/plugins/ultraplan-local/commands/trekplan.md b/plugins/ultraplan-local/commands/trekplan.md
index cc21999..ee2fd0b 100644
--- a/plugins/ultraplan-local/commands/trekplan.md
+++ b/plugins/ultraplan-local/commands/trekplan.md
@@ -802,7 +802,7 @@ If eligible:
 ## Phase 12 — Session tracking
 
 After the plan is presented (Phase 10) or after handoff (Phase 11), write a
-session record to `${CLAUDE_PLUGIN_DATA}/ultraplan-stats.jsonl` (create the file
+session record to `${CLAUDE_PLUGIN_DATA}/trekplan-stats.jsonl` (create the file
 if it does not exist).
 
 Record format (one JSON line):
diff --git a/plugins/ultraplan-local/commands/trekresearch.md b/plugins/ultraplan-local/commands/trekresearch.md
index f426025..4c5df45 100644
--- a/plugins/ultraplan-local/commands/trekresearch.md
+++ b/plugins/ultraplan-local/commands/trekresearch.md
@@ -385,7 +385,7 @@ You can:
 
 ### Stats tracking
 
-Write a session record to `${CLAUDE_PLUGIN_DATA}/ultraresearch-stats.jsonl`
+Write a session record to `${CLAUDE_PLUGIN_DATA}/trekresearch-stats.jsonl`
 (create the file if it does not exist).
 
 Record format (one JSON line):
diff --git a/plugins/ultraplan-local/commands/trekreview.md b/plugins/ultraplan-local/commands/trekreview.md
index fb24084..e3d91e4 100644
--- a/plugins/ultraplan-local/commands/trekreview.md
+++ b/plugins/ultraplan-local/commands/trekreview.md
@@ -252,7 +252,7 @@ If validation fails:
   stop and ask the user to re-run; do not silently produce an invalid
   review.md.
 
-Append a stats line to `${CLAUDE_PLUGIN_DATA}/ultrareview-stats.jsonl`
+Append a stats line to `${CLAUDE_PLUGIN_DATA}/trekreview-stats.jsonl`
 (create the file if it does not exist):
 
 ```json
diff --git a/plugins/ultraplan-local/hooks/scripts/post-bash-stats.mjs b/plugins/ultraplan-local/hooks/scripts/post-bash-stats.mjs
index 699e3c5..65030fd 100755
--- a/plugins/ultraplan-local/hooks/scripts/post-bash-stats.mjs
+++ b/plugins/ultraplan-local/hooks/scripts/post-bash-stats.mjs
@@ -2,7 +2,7 @@
 // post-bash-stats.mjs — PostToolUse hook (CC v2.1.97+)
 //
 // Captures duration_ms from PostToolUse payload for Bash tool calls and
-// appends a structured stats line to ${CLAUDE_PLUGIN_DATA}/ultraexecute-stats.jsonl
+// appends a structured stats line to ${CLAUDE_PLUGIN_DATA}/trekexecute-stats.jsonl
 // when the running session is an ultraexecute session.
 //
 // Detection: only fires when the tool input matches the verify/checkpoint
@@ -47,7 +47,7 @@ async function readStdin() {
       success: payload.tool_response?.success !== false,
     });
 
-    const target = join(dataDir, 'ultraexecute-stats.jsonl');
+    const target = join(dataDir, 'trekexecute-stats.jsonl');
     try {
       mkdirSync(dirname(target), { recursive: true });
     } catch {}
diff --git a/plugins/ultraplan-local/hooks/scripts/pre-bash-executor.mjs b/plugins/ultraplan-local/hooks/scripts/pre-bash-executor.mjs
index abe75d3..97fe6ab 100644
--- a/plugins/ultraplan-local/hooks/scripts/pre-bash-executor.mjs
+++ b/plugins/ultraplan-local/hooks/scripts/pre-bash-executor.mjs
@@ -220,7 +220,7 @@ const normalized = normalizeCommand(deobfuscated);
 for (const rule of BLOCK_RULES) {
   if (rule.pattern.test(normalized)) {
     process.stderr.write(
-      `[ultraplan] BLOCKED: ${rule.name}\n` +
+      `[voyage] BLOCKED: ${rule.name}\n` +
       `  Command: ${normalized.slice(0, 200)}${normalized.length > 200 ? '...' : ''}\n` +
       `  ${rule.description}\n`
     );
@@ -238,7 +238,7 @@ for (const rule of WARN_RULES) {
 
 if (warnings.length > 0) {
   process.stderr.write(
-    `[ultraplan] SECURITY ADVISORY: Potentially risky command.\n` +
+    `[voyage] SECURITY ADVISORY: Potentially risky command.\n` +
     `  Command: ${normalized.slice(0, 200)}${normalized.length > 200 ? '...' : ''}\n` +
     warnings.join('\n') + '\n'
   );
diff --git a/plugins/ultraplan-local/hooks/scripts/pre-compact-flush.mjs b/plugins/ultraplan-local/hooks/scripts/pre-compact-flush.mjs
index a98febd..a33d684 100644
--- a/plugins/ultraplan-local/hooks/scripts/pre-compact-flush.mjs
+++ b/plugins/ultraplan-local/hooks/scripts/pre-compact-flush.mjs
@@ -170,7 +170,7 @@ for (const { projDir, progPath, planPath } of progressFiles) {
       };
     }
     atomicWriteJson(progPath, progress);
-    process.stderr.write(`[ultraplan-local] pre-compact flush: ${progPath} -> current_step=${derivedStep}\n`);
+    process.stderr.write(`[voyage] pre-compact flush: ${progPath} -> current_step=${derivedStep}\n`);
     mutationsMade++;
   }
 
@@ -178,7 +178,7 @@ for (const { projDir, progPath, planPath } of progressFiles) {
   // progress.json mutation — the state file may exist for a session that
   // hasn't advanced step yet, and we still want updated_at to track liveness.
   if (refreshSessionState(projDir)) {
-    process.stderr.write(`[ultraplan-local] pre-compact refresh: ${projDir}/.session-state.local.json\n`);
+    process.stderr.write(`[voyage] pre-compact refresh: ${projDir}/.session-state.local.json\n`);
     mutationsMade++;
   }
 }
diff --git a/plugins/ultraplan-local/hooks/scripts/pre-write-executor.mjs b/plugins/ultraplan-local/hooks/scripts/pre-write-executor.mjs
index 020aa91..7a65fee 100644
--- a/plugins/ultraplan-local/hooks/scripts/pre-write-executor.mjs
+++ b/plugins/ultraplan-local/hooks/scripts/pre-write-executor.mjs
@@ -113,7 +113,7 @@ const resolved = resolve(filePath);
 for (const rule of BLOCK_RULES) {
   if (rule.test(resolved)) {
     process.stderr.write(
-      `[ultraplan] BLOCKED: ${rule.name}\n` +
+      `[voyage] BLOCKED: ${rule.name}\n` +
       `  Path: ${resolved}\n` +
       `  ${rule.description}\n`
     );
diff --git a/plugins/ultraplan-local/lib/stats/cache-analyzer.mjs b/plugins/ultraplan-local/lib/stats/cache-analyzer.mjs
index 46a6eaa..72777e7 100644
--- a/plugins/ultraplan-local/lib/stats/cache-analyzer.mjs
+++ b/plugins/ultraplan-local/lib/stats/cache-analyzer.mjs
@@ -1,5 +1,5 @@
 // lib/stats/cache-analyzer.mjs
-// Summarizes ultraexecute-stats.jsonl: total events, percentile wall times,
+// Summarizes trekexecute-stats.jsonl: total events, percentile wall times,
 // time range. Companion to event-emit.mjs (which produces the jsonl).
 //
 // Designed for /ultraplan-local Spor C: gives C3 telemetry context when
@@ -11,7 +11,7 @@
 import { readFileSync, existsSync } from 'node:fs';
 
 function usage() {
-  return `cache-analyzer.mjs — summarize ultraexecute-stats.jsonl
+  return `cache-analyzer.mjs — summarize trekexecute-stats.jsonl
 
 USAGE:
   node lib/stats/cache-analyzer.mjs --json <path-to-jsonl>
diff --git a/plugins/ultraplan-local/lib/stats/event-emit.mjs b/plugins/ultraplan-local/lib/stats/event-emit.mjs
index ab45cd8..787cc01 100644
--- a/plugins/ultraplan-local/lib/stats/event-emit.mjs
+++ b/plugins/ultraplan-local/lib/stats/event-emit.mjs
@@ -1,7 +1,7 @@
 // lib/stats/event-emit.mjs
 // Atomic JSONL append for autonomy-lifecycle events (plan-v2 Step 6).
 //
-// Writes one line per event to ${CLAUDE_PLUGIN_DATA}/ultraexecute-stats.jsonl
+// Writes one line per event to ${CLAUDE_PLUGIN_DATA}/trekexecute-stats.jsonl
 // (or override via CLAUDE_PLUGIN_DATA env var; falls back to silent skip if
 // the directory doesn't exist — stats failures must NEVER block workflow).
 //
@@ -28,7 +28,7 @@ export const KNOWN_EVENTS = Object.freeze(new Set([
   'user_input',
 ]));
 
-const STATS_FILENAME = 'ultraexecute-stats.jsonl';
+const STATS_FILENAME = 'trekexecute-stats.jsonl';
 
 /**
  * Resolve the stats file path. Honors CLAUDE_PLUGIN_DATA env var.
diff --git a/plugins/ultraplan-local/scripts/q3-cache-prefix-experiment.mjs b/plugins/ultraplan-local/scripts/q3-cache-prefix-experiment.mjs
index 68da7f8..da57852 100644
--- a/plugins/ultraplan-local/scripts/q3-cache-prefix-experiment.mjs
+++ b/plugins/ultraplan-local/scripts/q3-cache-prefix-experiment.mjs
@@ -30,7 +30,7 @@ const PROJECT_DIR = resolve(
   '.claude/projects/2026-05-04-spor-c-q3-cache-prefix-experiment',
 );
 const DEFAULT_OUT = join(PROJECT_DIR, 'q3-experiment-results.local.md');
-const STATS_JSONL = '/Users/ktg/.claude/plugins/data/ultraplan-local-ktg-plugin-marketplace/ultraexecute-stats.jsonl';
+const STATS_JSONL = '/Users/ktg/.claude/plugins/data/voyage-ktg-plugin-marketplace/trekexecute-stats.jsonl';
 const ANALYZER = resolve(process.cwd(), 'lib/stats/cache-analyzer.mjs');
 
 const MIN_PARENT_TOKENS = 150_000;
diff --git a/plugins/ultraplan-local/settings.json b/plugins/ultraplan-local/settings.json
index 38f1cea..2f9a447 100644
--- a/plugins/ultraplan-local/settings.json
+++ b/plugins/ultraplan-local/settings.json
@@ -1,5 +1,5 @@
   {
-    "ultraplan": {
+    "trekplan": {
       "defaultMode": "default",
       "autoResearch": true,
       "interview": {
@@ -8,10 +8,10 @@
       },
       "tracking": {
         "enabled": true,
-        "statsFile": "ultraplan-stats.jsonl"
+        "statsFile": "trekplan-stats.jsonl"
       }
     },
-    "ultraresearch": {
+    "trekresearch": {
       "defaultMode": "default",
       "maxDimensions": 8,
       "geminiBridge": {
@@ -25,7 +25,7 @@
       },
       "tracking": {
         "enabled": true,
-        "statsFile": "ultraresearch-stats.jsonl"
+        "statsFile": "trekresearch-stats.jsonl"
       }
     }
   }
\ No newline at end of file
diff --git a/plugins/ultraplan-local/tests/lib/doc-consistency.test.mjs b/plugins/ultraplan-local/tests/lib/doc-consistency.test.mjs
index 23bc173..84c1caf 100644
--- a/plugins/ultraplan-local/tests/lib/doc-consistency.test.mjs
+++ b/plugins/ultraplan-local/tests/lib/doc-consistency.test.mjs
@@ -80,7 +80,7 @@ test('commands/trekexecute.md still parses v1.7 plan schema', () => {
 
 test('settings.json has only known top-level scopes after Spor 0 cleanup', () => {
   const cfg = JSON.parse(read('settings.json'));
-  const known = ['ultraplan', 'ultraresearch'];
+  const known = ['trekplan', 'trekresearch'];
   for (const k of Object.keys(cfg)) {
     assert.ok(known.includes(k), `Unknown top-level scope in settings.json: ${k}`);
   }
@@ -88,9 +88,9 @@ test('settings.json has only known top-level scopes after Spor 0 cleanup', () =>
 
 test('settings.json no longer carries vestigial exploration block', () => {
   const cfg = JSON.parse(read('settings.json'));
-  assert.equal(cfg.ultraplan?.exploration, undefined,
+  assert.equal(cfg.trekplan?.exploration, undefined,
     'exploration block was vestigial — should be deleted in v3.1.0 Spor 0');
-  assert.equal(cfg.ultraplan?.agentTeam, undefined,
+  assert.equal(cfg.trekplan?.agentTeam, undefined,
     'agentTeam block was vestigial — should be deleted in v3.1.0 Spor 0');
 });
 
diff --git a/plugins/ultraplan-local/tests/lib/stats-event-emit.test.mjs b/plugins/ultraplan-local/tests/lib/stats-event-emit.test.mjs
index f86f488..9ef1637 100644
--- a/plugins/ultraplan-local/tests/lib/stats-event-emit.test.mjs
+++ b/plugins/ultraplan-local/tests/lib/stats-event-emit.test.mjs
@@ -101,7 +101,7 @@ test('emit never throws when stats path is unwritable', () => {
 
 test('resolveStatsPath honors CLAUDE_PLUGIN_DATA env var', () => {
   const r = resolveStatsPath({ CLAUDE_PLUGIN_DATA: '/var/data/plugin' });
-  assert.equal(r, '/var/data/plugin/ultraexecute-stats.jsonl');
+  assert.equal(r, '/var/data/plugin/trekexecute-stats.jsonl');
   assert.equal(resolveStatsPath({}), null);
 });
 
@@ -114,7 +114,7 @@ test('CLI shim writes via emit when CLAUDE_PLUGIN_DATA is set', () => {
       env: { ...process.env, CLAUDE_PLUGIN_DATA: dir },
       encoding: 'utf-8',
     });
-    const path = join(dir, 'ultraexecute-stats.jsonl');
+    const path = join(dir, 'trekexecute-stats.jsonl');
     assert.ok(existsSync(path));
     const line = readFileSync(path, 'utf-8').trim();
     const parsed = JSON.parse(line);