VS Code plugin hooks can't invoke bundled scripts
13 posts since Mar 2026, all from GitHub.
“Copilot Chat Extension Version: built in @github/copilot 1.0.95 0, @github/copilot sdk 1.0.19 VS Code Version: 1.142.0 (commit 6d62b1d) OS Version: Windows 11 Feature: Copilot CLI session (agent host), Explore subagent Selected model: Claude Sonnet 5.5 as the main model…”
“Reported on VS Code 1.143.0 insider, commit 4c6cba15 , using the Copilot / Agent Host harness. Steps to reproduce 1. In a trusted workspace with hooks enabled, define a custom .agent.md with a SessionStart marker hook and a PreToolUse hook that denies shell execution. 2. Select…”
“Copilot Chat Extension Version: Built in Agent Host / Copilot SDK provider. Exact runtime version was not established from the retained logs. VS Code Version: Insiders 1.142.0 insider , commit ff00e788322523ee1e9e8ee2c9bb4b89af93a3c2 , build date 2026 10 12T02:35:46Z . OS…”
Users are encountering errors when attempting to use custom plugins with VS Code, specifically related to the inability of plugin hooks to execute bundled scripts. This issue arises after publishing plugins via the marketplace and involves problems with agent functionality and script execution.
SOURCES (13)
“Copilot Chat Extension Version: built in @github/copilot 1.0.95 0, @github/copilot sdk 1.0.19 VS Code Version: 1.142.0 (commit 6d62b1d) OS Version: Windows 11 Feature: Copilot CLI session (agent host), Explore subagent Selected model: Claude Sonnet 5.5 as the main model; chat.exploreAgent.defaultModel set to Claude Haiku 4.5…”
“Reported on VS Code 1.143.0 insider, commit 4c6cba15 , using the Copilot / Agent Host harness. Steps to reproduce 1. In a trusted workspace with hooks enabled, define a custom .agent.md with a SessionStart marker hook and a PreToolUse hook that denies shell execution. 2. Select that agent in a new Copilot / Agent Host session. 3. Ask it to run a harmless shell command covered by the deny hook. 4. Repeat with the selected agent supplied by a file based plugin. Expected: The marker hook runs and t”
“Copilot Chat Extension Version: Built in Agent Host / Copilot SDK provider. Exact runtime version was not established from the retained logs. VS Code Version: Insiders 1.142.0 insider , commit ff00e788322523ee1e9e8ee2c9bb4b89af93a3c2 , build date 2026 10 12T02:35:46Z . OS Version: macOS. Feature (e.g. agent/edit/ask mode): Agents Window, Copilot Connectors surfaced as MCP servers, Sign In. Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): GPT 6.1 Sol; the failure occurs during connector authenti”
“Type: <b Bug</b Environment VS Code: Remote SSH session to Ubuntu, UI rendered on Windows local machine GitHub Copilot Chat extension Custom models configured via chatLanguageModels.json (deepseek v4 pro, deepseek flash) Steps to Reproduce 1. Open VS Code on Windows, connect to an Ubuntu machine via Remote SSH. 2. Edit chatLanguageModels.json to add custom customendpoint models (deepseek v4 pro and deepseek flash), with valid endpoint, apiKey and model configuration. 3. Save the JSON file, resta”
“Moving from local agent host Copilot, we've defaulted into going forward with using Copilot SDK's built in shell tool. Meaning chat.agentHost.customTerminalTool.enabled false. What this means is that we went from chat terminal (that agent uses) using pty backed vscode owned terminal to non interactive and non pty direct child process spawn to run commands. Hence the behavior now is that when commands are run from chat agent, it does not respect chat.tools.terminal.terminalProfile.windows or othe”
“Copilot Chat Extension Version: 0.62.2026081804 VS Code Version: 1.134.0 insider Commit: d1d996042bdf0cfccbe36f37c2052c314ed159d5 OS Version: macOS 26.6.1 Feature: Agents Window / local Copilot Agent Host sessions Selected model: Not model specific Description After updating VS Code Insiders, I lost access to previously existing local Agent Host sessions in the Agents Window. I will refer to the missing sessions as Session A and Session B . Before the update, both sessions appeared in the Sessio”
“Copilot Chat Extension Version: Unknown / observed across versions VS Code Version: Unknown OS Version: Unknown Feature (e.g. agent/edit/ask mode): Copilot Agent Host sessions in VS Code; Copilot CLI sessions in terminal Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): Claude (observed) and Copilot models Logs: Not attached per request (do not upload logs or .zip files). Relevant logs exist but are intentionally omitted. Screenshots from the Slack thread may be attached instead. Steps to Reprod”
“Copilot Chat Extension Version: Built in VS Code Version: 1.131.0 main at 3d97feaadbd OS Version: macOS Feature (e.g. agent/edit/ask mode): Agents window, local Agent Host, Copilot provider Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): Model independent Logs: Agent Host debug export inspected locally; relevant sanitized timeline and AHP facts are below Steps to Reproduce: 1. Configure an OAuth protected remote MCP server that uses dynamic client registration, such as Notion at https://mcp.no”
“Error Message Stack Trace at qv. fn (../src/extension/inlineEdits/node/nextEditProvider.ts:148:9) at qv.get (./src/vs/base/common/cache.ts:117:21) at O2. rebaseAndCacheStreamedEdit (../src/extension/inlineEdits/node/nextEditProvider.ts:776:37) at M (../src/extension/inlineEdits/node/nextEditProvider.ts:945:23) at processEdit (../src/extension/inlineEdits/node/nextEditProvider.t”
“Testing https://github.com/microsoft/vscode/issues/323371 Create a new chat in the agents window Click on Claude harness or Codex harness, notice it isn't selected 🐛 https://github.com/user attachments/assets/1b6622c3 8e9c 4140 8209 94e9175c274b”
“Copilot Chat Extension Version: 0.42.3 VS Code Version: 1.114.0 OS Version: Windows 11 23H2 22631.6199 Feature (e.g. agent/edit/ask mode): Agent via Copilot Plugin Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): Any Steps to Reproduce: 1. Create a basic plugin following the official documentation. This plugin must include: 1.1. Any custom agent, just to trigger the hooks. 1.2. /hooks/ .ts scripts. Can also be any language, even powershell. 1.3. /hooks.json 2. Publish plugin via marketplace. 3.”
“Install copilot CLI if you haven't already Make sure hooks are enabled in the settings "chat.useHooks": true Create hooks.json and save it to global hooks location at /.copilot/hooks. You can use hooks from (or use it as starting point and customize) https://github.com/pwang347/hooks testing Create new chat session and use 'Copilot CLI' as target Invoke a tool (for e.g. use this prompt: count .json files in this workspace) Bring up Agent Debug panel Click on Hook: postTool item is logs view, it”
“Copilot Chat Extension Version: 0.37.9 VS Code Version: 1.109.5 OS Version: Windows 11 Pro (latest) Feature (e.g. agent/edit/ask mode): agent Selected model (e.g. GPT 4.1, Claude 3.7 Sonnet): GPT5.4 Logs: GitHub Copilot Chat.log Steps to Reproduce: 1. upload 10 images 2. send the prompt <img width="1065" height="1954" alt="Image" src="https://github.com/user attachments/assets/7fc42d4c b994 4b5d b59c ba3c524537ae" / <img width="1046" height="2050" alt="Image" src="https://github.com/user attachm”