Treat non-2xx activity responses as feed errors, preserve non-Markdown Copilot agent assets, and apply the reviewed reference escape parity correction with regenerated bindings. Allow the test runner to drain piped output on its existing success or failure exit status. Validate installed workflows and bounded real Node20/24 pipe regressions.
GitHub Copilot CLI discovers SKILL.md skills from .github/skills/ and custom
agents from .github/agents/, so ECC's catalog can be installed there without a
conversion step. This adds a managed-project install target that places both.
Scope is deliberately limited to agents and skills. ECC hooks are written
against Claude Code's event model, and commands rely on slash-command argument
substitution Copilot does not provide, so neither is installed.
Agent frontmatter goes through an allowlist transform rather than a passthrough:
Copilot resolves the session model from user configuration, so a Claude model id
makes it warn and fall back on every invocation; Claude tool names are not
Copilot tool names, and Copilot governs tool access per session via
--allow-tool/--deny-tool. Unknown keys added to ECC agents later therefore
cannot leak into the Copilot copy.
Target selection stays permissive in supportsModule so dependency-anchor modules
still resolve; planOperations is what narrows the install, matching the
convention used by the other adapters.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
haelyra