diff --git a/README.md b/README.md
index 2f9ce91..ef505f0 100644
--- a/README.md
+++ b/README.md
@@ -71,6 +71,7 @@ Configuration options:
 - `nostrLock.dailyRoster` / `nostrLock.weeklyRoster` (explicit rosters)
 - `dashboard.defaultCadenceView` (`daily`, `weekly`, or `all`)
 - `dashboard.defaultStatusView` (`active` or `all`)
+- `dashboard.hashtag` (custom hashtag for lock events)
 - `scheduler.firstPromptByCadence.daily` / `.weekly` (first prompt to run)
 - `scheduler.paused.daily` / `.weekly` (array of agent names to pause locally)
 
@@ -88,6 +89,7 @@ npx --no-install torch-lock dashboard --port 4173
 You can override configuration using environment variables:
 
 - `NOSTR_LOCK_NAMESPACE`
+- `NOSTR_LOCK_HASHTAG`
 - `NOSTR_LOCK_RELAYS` (comma-separated)
 - `NOSTR_LOCK_TTL`
 - `NOSTR_LOCK_QUERY_TIMEOUT_MS`
diff --git a/dashboard/index.html b/dashboard/index.html
index 6e28b08..cc640b9 100644
--- a/dashboard/index.html
+++ b/dashboard/index.html
@@ -37,7 +37,7 @@
             >
             lock events published by AI agents working on this TORCH project. Events
             are kind <code class="mono text-xs">30078</code> filtered by the
-            <code id="introHashtag" class="mono text-xs">#torch-agent-lock</code> hashtag on public
+            <code id="introHashtag" class="mono text-xs">...</code> hashtag on public
             Nostr relays.
           </p>
         </header>
diff --git a/src/docs/TORCH.md b/src/docs/TORCH.md
index 6a2a362..cdfe40e 100644
--- a/src/docs/TORCH.md
+++ b/src/docs/TORCH.md
@@ -44,6 +44,7 @@ node bin/torch-lock.mjs health --cadence daily
 ## Environment variables
 
 - `NOSTR_LOCK_NAMESPACE`
+- `NOSTR_LOCK_HASHTAG`
 - `NOSTR_LOCK_RELAYS`
 - `NOSTR_LOCK_TTL`
 - `NOSTR_LOCK_QUERY_TIMEOUT_MS`
@@ -77,6 +78,7 @@ Common settings:
 - `nostrLock.dailyRoster` / `nostrLock.weeklyRoster` — optional per-project roster overrides.
 - `dashboard.defaultCadenceView` — default dashboard view (`daily`, `weekly`, `all`).
 - `dashboard.defaultStatusView` — default dashboard status filter (`active`, `all`).
+- `dashboard.hashtag` — custom hashtag for lock events (defaults to `<namespace>-agent-lock`).
 - `scheduler.firstPromptByCadence.daily` / `.weekly` — first-run scheduler starting agent.
 - `scheduler.handoffCommandByCadence.daily` / `.weekly` — shell command run after lock acquisition; command must use `SCHEDULER_AGENT`, `SCHEDULER_CADENCE`, and `SCHEDULER_PROMPT_PATH` provided by `scripts/agent/run-scheduler-cycle.mjs`.
 - `scheduler.paused.daily` / `.weekly` — array of agent names to exclude from scheduler rotation.
diff --git a/src/lib.mjs b/src/lib.mjs
index 9541615..eaf4b72 100644
--- a/src/lib.mjs
+++ b/src/lib.mjs
@@ -11,6 +11,7 @@ import {
   getRelays as _getRelays,
   getNamespace as _getNamespace,
   getTtl as _getTtl,
+  getHashtag as _getHashtag,
 } from './torch-config.mjs';
 import {
   DEFAULT_DASHBOARD_PORT,
@@ -191,6 +192,7 @@ export async function cmdLock(agent, cadence, dryRun = false, deps = {}) {
   const {
     getRelays = _getRelays,
     getNamespace = _getNamespace,
+    getHashtag = _getHashtag,
     getTtl = _getTtl,
     queryLocks = _queryLocks,
     getRoster = _getRoster,
@@ -206,12 +208,14 @@ export async function cmdLock(agent, cadence, dryRun = false, deps = {}) {
 
   const relays = getRelays();
   const namespace = getNamespace();
+  const hashtag = getHashtag();
   const dateStr = getDateStr();
   const ttl = getTtl();
   const now = nowUnix();
   const expiresAt = now + ttl;
 
   error(`Locking: namespace=${namespace}, agent=${agent}, cadence=${cadence}, date=${dateStr}`);
+  error(`Hashtag: #${hashtag}`);
   error(`TTL: ${ttl}s, expires: ${new Date(expiresAt * 1000).toISOString()}`);
   error(`Relays: ${relays.join(', ')}`);
 
@@ -259,7 +263,7 @@ export async function cmdLock(agent, cadence, dryRun = false, deps = {}) {
       created_at: now,
       tags: [
         ['d', `${namespace}-lock/${cadence}/${agent}/${dateStr}`],
-        ['t', `${namespace}-agent-lock`],
+        ['t', hashtag],
         ['t', `${namespace}-lock-${cadence}`],
         ['t', `${namespace}-lock-${cadence}-${dateStr}`],
         ['expiration', String(expiresAt)],
@@ -313,6 +317,7 @@ export async function cmdLock(agent, cadence, dryRun = false, deps = {}) {
   log(`LOCK_EVENT_ID=${event.id}`);
   log(`LOCK_PUBKEY=${pk}`);
   log(`LOCK_AGENT=${agent}`);
+  log(`LOCK_HASHTAG=${hashtag}`);
   log(`LOCK_CADENCE=${cadence}`);
   log(`LOCK_DATE=${dateStr}`);
   log(`LOCK_EXPIRES=${expiresAt}`);
@@ -419,6 +424,7 @@ export async function cmdComplete(agent, cadence, dryRun = false, deps = {}) {
   const {
     getRelays = _getRelays,
     getNamespace = _getNamespace,
+    getHashtag = _getHashtag,
     queryLocks = _queryLocks,
     publishLock = _publishLock,
     generateSecretKey = _generateSecretKey,
@@ -431,6 +437,7 @@ export async function cmdComplete(agent, cadence, dryRun = false, deps = {}) {
 
   const relays = getRelays();
   const namespace = getNamespace();
+  const hashtag = getHashtag();
   const dateStr = getDateStr();
   const now = nowUnix();
 
@@ -466,7 +473,7 @@ export async function cmdComplete(agent, cadence, dryRun = false, deps = {}) {
       created_at: now,
       tags: [
         ['d', `${namespace}-lock/${cadence}/${agent}/${dateStr}`],
-        ['t', `${namespace}-agent-lock`],
+        ['t', hashtag],
         ['t', `${namespace}-lock-${cadence}`],
         ['t', `${namespace}-lock-${cadence}-${dateStr}`],
         // No expiration tag -> permanent
diff --git a/src/torch-config.mjs b/src/torch-config.mjs
index cd8204e..b7ea2bc 100644
--- a/src/torch-config.mjs
+++ b/src/torch-config.mjs
@@ -282,3 +282,16 @@ export function getMinActiveRelayPool() {
   assertPositiveCount(value, 'effective min active relay pool');
   return value;
 }
+
+export function getHashtag() {
+  const config = loadTorchConfig();
+  const envValue = process.env.NOSTR_LOCK_HASHTAG;
+  if (envValue) {
+    return envValue.trim();
+  }
+  if (config.dashboard.hashtag) {
+    return config.dashboard.hashtag;
+  }
+  const namespace = getNamespace();
+  return `${namespace}-agent-lock`;
+}