diff --git a/.opencode/tools/tea-issue-deps.ts b/.opencode/tools/tea-issue-deps.ts
new file mode 100644
index 0000000..be2a165
--- /dev/null
+++ b/.opencode/tools/tea-issue-deps.ts
@@ -0,0 +1,110 @@
+import { tool } from "@opencode-ai/plugin"
+import { $ } from "bun"
+
+export const issueDepsList = tool({
+  description: "List dependency relationships for an issue (what it blocks and what blocks it)",
+  args: {
+    issueNumber: tool.schema.number().describe("Issue number"),
+  },
+  async execute(args, context) {
+    try {
+      const result = await $`tea issue ${args.issueNumber} --output json --comments`.text()
+      const issue = JSON.parse(result)
+      
+      const dependencies = {
+        issueNumber: issue.index,
+        title: issue.title,
+        blocks: [],
+        blockedBy: [],
+      }
+      
+      if (issue.comments && Array.isArray(issue.comments)) {
+        for (const comment of issue.comments) {
+          const text = comment.body || ""
+          const depMatch = text.match(/blocks\s+#[0-9]+|blocked by\s+#[0-9]+/i)
+          if (depMatch) {
+            const relatedIssueMatch = text.match(/#[0-9]+/)
+            if (relatedIssueMatch) {
+              const relatedIssueNum = parseInt(relatedIssueMatch[0], 10)
+              const isBlocks = depMatch[0].toLowerCase().startsWith("blocks")
+              if (isBlocks) {
+                dependencies.blocks.push({
+                  issueNumber: relatedIssueNum,
+                  relationship: "blocks",
+                })
+              } else {
+                dependencies.blockedBy.push({
+                  issueNumber: relatedIssueNum,
+                  relationship: "blockedBy",
+                })
+              }
+            }
+          }
+        }
+      }
+      
+      return dependencies
+    } catch (error: any) {
+      return {
+        error: "Failed to get issue dependencies",
+        message: error.message,
+        stderr: error.stderr?.toString(),
+      }
+    }
+  },
+})
+
+export const issueDepsAdd = tool({
+  description: "Add a dependency relationship between issues (issue A blocks issue B, or issue A is blocked by issue B)",
+  args: {
+    issueNumber: tool.schema.number().describe("Primary issue number"),
+    relatedIssueNumber: tool.schema.number().describe("Related issue number"),
+    relationship: tool.schema.enum(["blocks", "blockedBy"]).describe("Relationship type: 'blocks' means issueNumber blocks relatedIssueNumber, 'blockedBy' means issueNumber is blocked by relatedIssueNumber"),
+    comment: tool.schema.string().optional().describe("Optional comment to add with the dependency"),
+  },
+  async execute(args, context) {
+    try {
+      let commentText = ""
+      if (args.relationship === "blocks") {
+        commentText = `@${args.relatedIssueNumber} blocks #${args.issueNumber}`
+      } else {
+        commentText = `@${args.issueNumber} is blocked by #${args.relatedIssueNumber}`
+      }
+      
+      if (args.comment) {
+        commentText += `\n\n${args.comment}`
+      }
+      
+      const result = await $`tea issue comment --output json --issue ${args.issueNumber} --body ${commentText}`.text()
+      return JSON.parse(result)
+    } catch (error: any) {
+      return {
+        error: "Failed to add issue dependency",
+        message: error.message,
+        stderr: error.stderr?.toString(),
+      }
+    }
+  },
+})
+
+export const issueDepsRemove = tool({
+  description: "Remove a dependency relationship between issues by commenting on the issue",
+  args: {
+    issueNumber: tool.schema.number().describe("Primary issue number"),
+    relatedIssueNumber: tool.schema.number().describe("Related issue number to remove dependency from"),
+  },
+  async execute(args, context) {
+    try {
+      const commentText = `@${args.relatedIssueNumber} removing dependency relationship`
+      
+      const result = await $`tea issue comment --output json --issue ${args.issueNumber} --body ${commentText}`.text()
+      return JSON.parse(result)
+    } catch (error: any) {
+      return {
+        error: "Failed to remove issue dependency",
+        message: error.message,
+        stderr: error.stderr?.toString(),
+      }
+    }
+  },
+})
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