Self-heal Symphony: Symphony is degraded after a poll/reconciliation failure: linear_mcp_tool_error:...<truncated>

[omar-elamin]

Self-Heal Summary

Symphony detected a local failure and produced a validated generic repair.

Trigger:
Symphony is degraded after a poll/reconciliation failure: linear_mcp_tool_error: Linear MCP tool unavailable for list_issues; tried _list_issues, linear._list_issues, list_issues, linear.list_issues, linear mcp server_list_issues; last error: linear_mcp_tool_error: {"content":[{"text":"Unknown tool: linear mcp server_list_issues","type":"text"}],"isError":true}

Local validated commit:
dc1d163

Evidence artifact:
/Users/omarelamin/Documents/Codex/2026-04-28/implement-symphony-according-to-the-following/.symphony-self-heal/runs/20260501T093137-symphony-is-degraded-after-a-poll-reconciliation-failure-linear_/evidence.json

Validation:

• mix format --check-formatted
• mix test
• mix escript.build

Notes:

• Local Symphony is allowed to run ahead of main.
• This PR is the sync/audit path back to main.
• Auto-merge was requested without bypassing branch protection.

[Copilot]

Copilot wasn't able to review this pull request because it exceeds the maximum number of lines (20,000). Try reducing the number of changed lines and requesting a review from Copilot again.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: e6f829b5-9630-410f-9c58-21660d20adfe

📥 Commits

Reviewing files that changed from the base of the PR and between 0976b11 and dc1d163.

⛔ Files ignored due to path filters (1)

• mix.lock is excluded by !**/*.lock

📒 Files selected for processing (73)

• .formatter.exs
• .gitignore
• README.md
• WORKFLOW.linear-mcp.example.md
• WORKFLOW.md
• docs/IMPLEMENTATION.md
• launchd/com.caretta.symphony.local.plist
• launchd/com.caretta.symphony.watchdog.plist
• launchd/com.symphony.linear-mcp.example.plist
• lib/symphony.ex
• lib/symphony/agent_runner.ex
• lib/symphony/cli.ex
• lib/symphony/codex_client.ex
• lib/symphony/coding_context.ex
• lib/symphony/config.ex
• lib/symphony/dashboard_summary.ex
• lib/symphony/error.ex
• lib/symphony/http_server.ex
• lib/symphony/logging.ex
• lib/symphony/models.ex
• lib/symphony/orchestrator.ex
• lib/symphony/repo_planner.ex
• lib/symphony/review.ex
• lib/symphony/self_heal.ex
• lib/symphony/templating.ex
• lib/symphony/tracker.ex
• lib/symphony/utils.ex
• lib/symphony/watchdog.ex
• lib/symphony/workflow.ex
• lib/symphony/workspace.ex
• mix.exs
• pyproject.toml
• scripts/symphony-managed.sh
• symphony/__init__.py
• symphony/__main__.py
• symphony/agent_runner.py
• symphony/cli.py
• symphony/codex_client.py
• symphony/coding_context.py
• symphony/config.py
• symphony/dashboard_summary.py
• symphony/errors.py
• symphony/http_server.py
• symphony/logging.py
• symphony/models.py
• symphony/orchestrator.py
• symphony/repo_planner.py
• symphony/review.py
• symphony/templating.py
• symphony/tracker.py
• symphony/utils.py
• symphony/workflow.py
• symphony/workspace.py
• test/agent_runner_test.exs
• test/cli_test.exs
• test/codex_client_test.exs
• test/managed_script_test.exs
• test/orchestrator_test.exs
• test/repo_planner_http_test.exs
• test/review_test.exs
• test/self_heal_test.exs
• test/test_helper.exs
• test/tracker_test.exs
• test/watchdog_test.exs
• test/workflow_config_template_test.exs
• test/workspace_test.exs
• tests/test_agent_runner.py
• tests/test_codex_client.py
• tests/test_orchestrator.py
• tests/test_review.py
• tests/test_tracker.py
• tests/test_workflow_config_template.py
• tests/test_workspace.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/self-heal/20260501T093137-symphony-is-degraded-after-a-poll-reconciliation-failure-linear_

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