feat: allow custom endpoints to use responses API via api_mode override#1651
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Add HERMES_API_MODE env var and model.api_mode config field to let custom OpenAI-compatible endpoints opt into codex_responses mode without requiring the OpenAI Codex OAuth provider path. - _get_configured_api_mode() reads HERMES_API_MODE env (precedence) then model.api_mode from config.yaml; validates against whitelist - Applied in both _resolve_openrouter_runtime() and _resolve_named_custom_runtime() (original PR only covered openrouter) - Fix _dump_api_request_debug() to show /responses URL when in codex_responses mode instead of always showing /chat/completions - Tests for config override, env override, invalid values, named custom providers, and debug dump URL for both API modes Inspired by PR #1041 by @mxyhi.
This was referenced Mar 17, 2026
angelburgosrosado
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Apr 27, 2026
…de (NousResearch#1651) Add HERMES_API_MODE env var and model.api_mode config field to let custom OpenAI-compatible endpoints opt into codex_responses mode without requiring the OpenAI Codex OAuth provider path. - _get_configured_api_mode() reads HERMES_API_MODE env (precedence) then model.api_mode from config.yaml; validates against whitelist - Applied in both _resolve_openrouter_runtime() and _resolve_named_custom_runtime() (original PR only covered openrouter) - Fix _dump_api_request_debug() to show /responses URL when in codex_responses mode instead of always showing /chat/completions - Tests for config override, env override, invalid values, named custom providers, and debug dump URL for both API modes Inspired by PR NousResearch#1041 by @mxyhi. Co-authored-by: mxyhi <mxyhi@users.noreply.github.com>
02356abc
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May 14, 2026
…de (NousResearch#1651) Add HERMES_API_MODE env var and model.api_mode config field to let custom OpenAI-compatible endpoints opt into codex_responses mode without requiring the OpenAI Codex OAuth provider path. - _get_configured_api_mode() reads HERMES_API_MODE env (precedence) then model.api_mode from config.yaml; validates against whitelist - Applied in both _resolve_openrouter_runtime() and _resolve_named_custom_runtime() (original PR only covered openrouter) - Fix _dump_api_request_debug() to show /responses URL when in codex_responses mode instead of always showing /chat/completions - Tests for config override, env override, invalid values, named custom providers, and debug dump URL for both API modes Inspired by PR NousResearch#1041 by @mxyhi. Co-authored-by: mxyhi <mxyhi@users.noreply.github.com>
olympus-terminal
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May 16, 2026
…de (NousResearch#1651) Add HERMES_API_MODE env var and model.api_mode config field to let custom OpenAI-compatible endpoints opt into codex_responses mode without requiring the OpenAI Codex OAuth provider path. - _get_configured_api_mode() reads HERMES_API_MODE env (precedence) then model.api_mode from config.yaml; validates against whitelist - Applied in both _resolve_openrouter_runtime() and _resolve_named_custom_runtime() (original PR only covered openrouter) - Fix _dump_api_request_debug() to show /responses URL when in codex_responses mode instead of always showing /chat/completions - Tests for config override, env override, invalid values, named custom providers, and debug dump URL for both API modes Inspired by PR NousResearch#1041 by @mxyhi. Co-authored-by: mxyhi <mxyhi@users.noreply.github.com>
gweeteve
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Jun 2, 2026
…de (NousResearch#1651) Add HERMES_API_MODE env var and model.api_mode config field to let custom OpenAI-compatible endpoints opt into codex_responses mode without requiring the OpenAI Codex OAuth provider path. - _get_configured_api_mode() reads HERMES_API_MODE env (precedence) then model.api_mode from config.yaml; validates against whitelist - Applied in both _resolve_openrouter_runtime() and _resolve_named_custom_runtime() (original PR only covered openrouter) - Fix _dump_api_request_debug() to show /responses URL when in codex_responses mode instead of always showing /chat/completions - Tests for config override, env override, invalid values, named custom providers, and debug dump URL for both API modes Inspired by PR NousResearch#1041 by @mxyhi. Co-authored-by: mxyhi <mxyhi@users.noreply.github.com>
Egavasyug
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Jun 10, 2026
…de (NousResearch#1651) Add HERMES_API_MODE env var and model.api_mode config field to let custom OpenAI-compatible endpoints opt into codex_responses mode without requiring the OpenAI Codex OAuth provider path. - _get_configured_api_mode() reads HERMES_API_MODE env (precedence) then model.api_mode from config.yaml; validates against whitelist - Applied in both _resolve_openrouter_runtime() and _resolve_named_custom_runtime() (original PR only covered openrouter) - Fix _dump_api_request_debug() to show /responses URL when in codex_responses mode instead of always showing /chat/completions - Tests for config override, env override, invalid values, named custom providers, and debug dump URL for both API modes Inspired by PR NousResearch#1041 by @mxyhi. Co-authored-by: mxyhi <mxyhi@users.noreply.github.com>
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What this PR does
Reimplementation of PR #1041 by @mxyhi onto current main.
Adds
HERMES_API_MODEenv var andmodel.api_modeconfig field so custom OpenAI-compatible endpoints can opt intocodex_responsesmode without going through the OpenAI Codex OAuth provider path.Changes
hermes_cli/runtime_provider.py_get_configured_api_mode()— readsHERMES_API_MODEenv var (takes precedence) thenmodel.api_modefrom config.yaml. Only allowschat_completionsorcodex_responses._resolve_openrouter_runtime()AND_resolve_named_custom_runtime()(original PR only covered the openrouter path)run_agent.py_dump_api_request_debug()now shows/responsesURL when incodex_responsesmode instead of always hardcoding/chat/completionsUsage
Or via env:
HERMES_API_MODE=codex_responsesImprovements over original PR
_resolve_named_custom_runtime), not just the openrouter pathTests
4850 passed, 0 new failures (8 pre-existing).
Closes #1041