diff --git a/docs/specification.md b/docs/specification.md
index b2150e2c1..7710a85c0 100644
--- a/docs/specification.md
+++ b/docs/specification.md
@@ -14308,6 +14308,10 @@ Render the decision tree for a plan.
 - `<PLAN_ID>`: Plan ID (required).
 - `--show-superseded`: Include superseded decisions.
 
+!!! note "Full ULID Display"
+
+    All decision IDs and child plan IDs are displayed as full 26-character ULIDs (not truncated). This ensures IDs can be copy-pasted directly into `agents plan correct <DECISION_ID>` or `agents plan tree <PLAN_ID>` without modification. The "Decision IDs (for correction)" panel uses per-type ordinal labels (e.g., "Invariant 1", "Invariant 2", "Strategy", "Parallel 1", "Spawn 1") for human-readable identification.
+
 **Examples**
 
 === "Rich"
@@ -14322,8 +14326,8 @@ Render the decision tree for a plan.
     │ ├─ <span style="color: magenta;">[invariant_enforced]</span> <span style="color: #66cc66;">"All API calls over TCP must be mocked"</span>                          │
     │ ├─ <span style="color: #5599ff;">[strategy_choice]</span> <span style="color: #66cc66;">"Prioritize auth and payments"</span> <span style="opacity: 0.7;">(confidence: 0.82)</span>                   │
     │ ├─ <span style="color: #66cc66;">[subplan_parallel_spawn]</span> "Implement auth and payment modules, in parallel"            │
-    │ │  ├─ <span style="color: #66cc66;">[subplan_spawn]</span> "Write auth tests" → Plan: 01HXM9F1A                               │
-    │ │  └─ <span style="color: #66cc66;">[subplan_spawn]</span> "Write payment tests" → Plan: 01HXM9F2B                            │
+    │ │  ├─ <span style="color: #66cc66;">[subplan_spawn]</span> "Write auth tests" → Plan: 01HXM9F1A2B3C4D5E6F7G8H9J0          │
+    │ │  └─ <span style="color: #66cc66;">[subplan_spawn]</span> "Write payment tests" → Plan: 01HXM9F2B3C4D5E6F7G8H9J0K1     │
     │ └─ <span style="color: #66cc66;">[subplan_parallel_spawn]</span> "Write tests for remaining modules"                          │
     │    └─ ...                                                                                │
     ╰──────────────────────────────────────────────────────────────────────────────────────────╯
@@ -14336,12 +14340,12 @@ Render the decision tree for a plan.
     │ <span style="color: #5599ff; font-weight: 600;">Superseded:</span> 0 (hidden)     │
     ╰────────────────────────────╯
 
-    ╭─ Child Plans ──────────────────────────────────────╮
-    │ <span style="color: cyan; font-weight: 600;">ID</span>          <span style="color: cyan; font-weight: 600;">Phase</span>    <span style="color: cyan; font-weight: 600;">State</span>                         │
-    │ <span style="opacity: 0.7;">──────────  ───────  ─────────</span>                     │
-    │ 01HXM9F1A   execute  processing                    │
-    │ 01HXM9F2B   execute  queued                        │
-    ╰────────────────────────────────────────────────────╯
+    ╭─ Child Plans ──────────────────────────────────────────────────────╮
+    │ <span style="color: cyan; font-weight: 600;">ID</span>                           <span style="color: cyan; font-weight: 600;">Phase</span>    <span style="color: cyan; font-weight: 600;">State</span>                         │
+    │ <span style="opacity: 0.7;">──────────────────────────── ───────  ─────────</span>                   │
+    │ 01HXM9F1A2B3C4D5E6F7G8H9J0  execute  processing                  │
+    │ 01HXM9F2B3C4D5E6F7G8H9J0K1  execute  queued                      │
+    ╰────────────────────────────────────────────────────────────────────╯
 
     ╭─ Decision IDs (for correction) ──────────────────╮
     │ <span style="color: #5599ff; font-weight: 600;">Root:</span> 01HXM9A0B1Q2W3R5G8Z0P4Q1X8                 │
@@ -14369,8 +14373,8 @@ Render the decision tree for a plan.
       +-- [invariant_enforced] "All API calls over TCP must be mocked"
       +-- [strategy_choice] "Prioritize auth and payments" (confidence: 0.82)
       +-- [subplan_parallel_spawn] "Implement auth and payment modules, in parallel"
-      |   +-- [subplan_spawn] "Write auth tests" -> Plan: 01HXM9F1A
-      |   +-- [subplan_spawn] "Write payment tests" -> Plan: 01HXM9F2B
+      |   +-- [subplan_spawn] "Write auth tests" -> Plan: 01HXM9F1A2B3C4D5E6F7G8H9J0
+      |   +-- [subplan_spawn] "Write payment tests" -> Plan: 01HXM9F2B3C4D5E6F7G8H9J0K1
       +-- [subplan_parallel_spawn] "Write tests for remaining modules"
           +-- ...
 
@@ -14382,10 +14386,10 @@ Render the decision tree for a plan.
       Superseded: 0 (hidden)
 
     Child Plans
-      ID          Phase    State
-      ----------  -------  ---------
-      01HXM9F1A   execute  processing
-      01HXM9F2B   execute  queued
+      ID                            Phase    State
+      ----------------------------  -------  ---------
+      01HXM9F1A2B3C4D5E6F7G8H9J0   execute  processing
+      01HXM9F2B3C4D5E6F7G8H9J0K1   execute  queued
 
     Decision IDs (for correction)
       Root: 01HXM9A0B1Q2W3R5G8Z0P4Q1X8
@@ -14420,8 +14424,8 @@ Render the decision tree for a plan.
               "type": "subplan_parallel_spawn",
               "description": "Implement auth and payment modules, in parallel",
               "children": [
-                { "type": "subplan_spawn", "description": "Write auth tests", "plan_id": "01HXM9F1A" },
-                { "type": "subplan_spawn", "description": "Write payment tests", "plan_id": "01HXM9F2B" }
+                { "type": "subplan_spawn", "description": "Write auth tests", "plan_id": "01HXM9F1A2B3C4D5E6F7G8H9J0" },
+                { "type": "subplan_spawn", "description": "Write payment tests", "plan_id": "01HXM9F2B3C4D5E6F7G8H9J0K1" }
               ]
             },
             {
@@ -14439,8 +14443,8 @@ Render the decision tree for a plan.
           "superseded": 0
         },
         "child_plans": [
-          { "id": "01HXM9F1A", "phase": "execute", "state": "processing" },
-          { "id": "01HXM9F2B", "phase": "execute", "state": "queued" }
+          { "id": "01HXM9F1A2B3C4D5E6F7G8H9J0", "phase": "execute", "state": "processing" },
+          { "id": "01HXM9F2B3C4D5E6F7G8H9J0K1", "phase": "execute", "state": "queued" }
         ],
         "decision_ids": {
           "root": "01HXM9A0B1Q2W3R5G8Z0P4Q1X8",
@@ -14485,10 +14489,10 @@ Render the decision tree for a plan.
             children:
               - type: subplan_spawn
                 description: "Write auth tests"
-                plan_id: "01HXM9F1A"
+                plan_id: "01HXM9F1A2B3C4D5E6F7G8H9J0"
               - type: subplan_spawn
                 description: "Write payment tests"
-                plan_id: "01HXM9F2B"
+                plan_id: "01HXM9F2B3C4D5E6F7G8H9J0K1"
           - type: subplan_parallel_spawn
             description: "Write tests for remaining modules"
             children:
@@ -14500,10 +14504,10 @@ Render the decision tree for a plan.
         invariants: 2
         superseded: 0
       child_plans:
-        - id: "01HXM9F1A"
+        - id: "01HXM9F1A2B3C4D5E6F7G8H9J0"
           phase: execute
           state: processing
-        - id: "01HXM9F2B"
+        - id: "01HXM9F2B3C4D5E6F7G8H9J0K1"
           phase: execute
           state: queued
       decision_ids: