Allow configuring custom skill marketplaces/registries for Copilot CLI (private/internal sources like Azure DevOps, GHE, etc.)

[pomianowski]

Describe the feature or problem you'd like to solve

Add support for custom marketplaces/registries as skill sources, in addition to any default/public source

Proposed solution

Copilot CLI “skills” are most valuable when teams can share and reuse them across an organization. In many companies, skills cannot be published to a public registry/marketplace due to:

• security/compliance constraints,
• proprietary/internal code and workflows,
• air-gapped or restricted networks,
• the need for version pinning and controlled rollout.

As a result, teams end up duplicating skills, copying scripts manually, or forking tooling.

Example prompts or workflows

/plugin marketplace add https://git.lepo.co/_git/copilot

Additional context

There is need for different authentication support

• token-based auth (PAT/Bearer),
• Windows NTLM
• environment-based credential discovery,
• optional interactive login where applicable.

[rpete3]

Supporting private/custom skill registries in Copilot CLI would be excellent for enterprise teams!
Please also make the CLI honor the private MCP Registry URL that some organizations can already configure. IDEs like VS Code respect it for centralized MCP discovery, but the CLI currently bypasses it. This would give us consistent org-wide governance for both skills and MCP tools.

[ddblascheck-design]

Am Fr., 27. Feb. 2026 um 23:59 Uhr schrieb rpete3 ***@***.***

…

: *rpete3* left a comment (github/copilot-cli#1309) <#1309 (comment)> Supporting private/custom skill registries in Copilot CLI would be excellent for enterprise teams! Please also make the CLI honor the private MCP Registry URL that some organizations can already configure. IDEs like VS Code respect it for centralized MCP discovery, but the CLI currently bypasses it. This would give us consistent org-wide governance for both skills and MCP tools. — Reply to this email directly, view it on GitHub <#1309 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/BWHJEPOGEV67XRAMMVUSXBD4ODD6PAVCNFSM6AAAAACUCY3YLGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTSNZVGYZDKMRSGM> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[examon]

This is now supported. The /plugin marketplace add command accepts GitHub repos, arbitrary git URLs (covering Azure DevOps, GHE, and other enterprise git hosts), and local paths as custom marketplace sources. For project-level configuration, you can define additional marketplaces in .claude/settings.json via the extraKnownMarketplaces field. Authentication for private sources is handled through your system's git credential configuration. If you believe this isn't resolved, please feel free to reopen this issue.