hermes-agent/agent
Teknium 125de02056
fix(context): honor custom_providers context_length on /model switch + bump probe tier to 256K (#15844)
Fixes #15779. Custom-provider per-model context_length (`custom_providers[].models.<id>.context_length`) is now honored across every resolution path, not just agent startup. Also adds 256K as the top probe tier and default fallback.

## What changed

New helper `hermes_cli.config.get_custom_provider_context_length()` — single source of truth for the per-model override lookup, with trailing-slash-insensitive base-url matching.

`agent.model_metadata.get_model_context_length()` gains an optional `custom_providers=` kwarg (step 0b — runs after explicit `config_context_length` but before every other probe).

Wired through five call sites that previously either duplicated the lookup or ignored it entirely:
- `run_agent.py` startup — refactored to use the new helper (dedups legacy inline loop, keeps invalid-value warning)
- `AIAgent.switch_model()` — re-reads custom_providers from live config on every /model switch
- `hermes_cli.model_switch.resolve_display_context_length()` — new `custom_providers=` kwarg
- `gateway/run.py` /model confirmation (picker callback + text path)
- `gateway/run.py` `_format_session_info` (/info)

## Context probe tiers

`CONTEXT_PROBE_TIERS = [256_000, 128_000, 64_000, 32_000, 16_000, 8_000]` — was `[128_000, ...]`. `DEFAULT_FALLBACK_CONTEXT` follows tier[0], so unknown models now default to 256K. The stale `128000` literal in the OpenRouter metadata-miss path is replaced with `DEFAULT_FALLBACK_CONTEXT` for consistency.

## Repro (from #15779)

```yaml
custom_providers:
  - name: my-custom-endpoint
    base_url: https://example.invalid/v1
    model: gpt-5.5
    models:
      gpt-5.5:
        context_length: 1050000
```

`/model gpt-5.5 --provider custom:my-custom-endpoint` → previously "Context: 128,000", now "Context: 1,050,000".

## Tests

- `tests/hermes_cli/test_custom_provider_context_length.py` — new file, 19 tests covering the helper, step-0b integration, and the 256K tier invariants
- `tests/hermes_cli/test_model_switch_context_display.py` — added regression tests for #15779 through the display resolver
- `tests/gateway/test_session_info.py` — updated default-fallback assertion (128K → 256K)
- `tests/agent/test_model_metadata.py` — updated tier assertions for the new top tier
2026-04-25 18:47:53 -07:00
..
transports fix(agent): preserve Codex message items for replay 2026-04-25 18:22:06 -07:00
__init__.py Refactor Terminal and AIAgent cleanup 2026-02-21 22:31:43 -08:00
account_usage.py feat(account-usage): add per-provider account limits module 2026-04-21 01:56:35 -07:00
anthropic_adapter.py refactor(memory): remove flush_memories entirely (#15696) 2026-04-25 08:21:14 -07:00
auxiliary_client.py refactor(memory): remove flush_memories entirely (#15696) 2026-04-25 08:21:14 -07:00
bedrock_adapter.py fix(bedrock): evict cached boto3 client on stale-connection errors 2026-04-24 07:26:07 -07:00
codex_responses_adapter.py fix(agent): preserve Codex message items for replay 2026-04-25 18:22:06 -07:00
context_compressor.py fix: recalculate token budgets on model switch in ContextCompressor 2026-04-25 15:07:56 +05:30
context_engine.py fix(compress): don't reach into ContextCompressor privates from /compress (#15039) 2026-04-24 02:55:43 -07:00
context_references.py fix(agent): fall back when rg is blocked for @folder references 2026-04-20 01:56:41 -07:00
copilot_acp_client.py fix: set HOME for Copilot ACP subprocesses 2026-04-24 05:09:08 -07:00
credential_pool.py fix(credential_pool): add Nous OAuth cross-process auth-store sync 2026-04-24 05:20:05 -07:00
credential_sources.py fix(auth): unify credential source removal — every source sticks (#13427) 2026-04-21 01:52:49 -07:00
display.py fix(display): render <missing old_text> in memory previews instead of empty quotes (#12852) 2026-04-19 22:45:47 -07:00
error_classifier.py fix(agent): only set rate-limit cooldown when leaving primary; add tests 2026-04-24 05:35:43 -07:00
file_safety.py fix(security): apply file safety to copilot acp fs 2026-04-21 01:31:58 -07:00
gemini_cloudcode_adapter.py refactor: remove redundant local imports already available at module level 2026-04-21 00:50:58 -07:00
gemini_native_adapter.py fix(gemini): fail fast on missing API key + surface it in hermes dump (#15133) 2026-04-24 05:35:17 -07:00
gemini_schema.py fix(gemini): drop integer/number/boolean enums from tool schemas (#15082) 2026-04-24 03:40:00 -07:00
google_code_assist.py fix(gemini-cli): surface MODEL_CAPACITY_EXHAUSTED cleanly + drop retired gemma-4-26b (#11833) 2026-04-17 15:34:12 -07:00
google_oauth.py feat(gemini): add Google Gemini CLI OAuth provider via Cloud Code Assist (free + paid tiers) (#11270) 2026-04-16 16:49:00 -07:00
image_gen_provider.py feat(plugins): pluggable image_gen backends + OpenAI provider (#13799) 2026-04-21 21:30:10 -07:00
image_gen_registry.py feat(plugins): pluggable image_gen backends + OpenAI provider (#13799) 2026-04-21 21:30:10 -07:00
insights.py Merge branch 'main' into feat/dashboard-skill-analytics 2026-04-20 05:25:49 -07:00
manual_compression_feedback.py fix(gateway): make manual compression feedback truthful 2026-04-10 21:16:53 -07:00
memory_manager.py fix(memory): add write origin metadata 2026-04-24 14:37:55 -07:00
memory_provider.py fix(memory): add write origin metadata 2026-04-24 14:37:55 -07:00
model_metadata.py fix(context): honor custom_providers context_length on /model switch + bump probe tier to 256K (#15844) 2026-04-25 18:47:53 -07:00
models_dev.py fix: normalize provider in list_provider_models to support aliases 2026-04-23 01:59:20 -07:00
moonshot_schema.py fix(kimi,mcp): Moonshot schema sanitizer + MCP schema robustness (#14805) 2026-04-23 16:11:57 -07:00
nous_rate_guard.py fix: Nous Portal rate limit guard — prevent retry amplification (#10568) 2026-04-15 16:31:48 -07:00
prompt_builder.py feat(agent): add PLATFORM_HINTS for matrix, mattermost, and feishu (#14428) 2026-04-23 12:50:22 +05:30
prompt_caching.py fix(prompt-caching): skip top-level cache_control on role:tool for OpenRouter 2026-03-21 16:54:43 -07:00
rate_limit_tracker.py refactor: remove dead code — 1,784 lines across 77 files (#9180) 2026-04-13 16:32:04 -07:00
redact.py feat: replace kimi-k2.5 with kimi-k2.6 on OpenRouter and Nous Portal (#13148) 2026-04-20 11:49:54 -07:00
retry_utils.py feat(agent): add jittered retry backoff 2026-04-08 00:41:36 -07:00
shell_hooks.py feat: shell hooks — wire shell scripts as Hermes hook callbacks 2026-04-20 20:53:51 -07:00
skill_commands.py fix(skills): apply inline shell in skill_view 2026-04-24 15:15:07 -07:00
skill_preprocessing.py fix(skills): apply inline shell in skill_view 2026-04-24 15:15:07 -07:00
skill_utils.py fix(skills): follow symlinks in iter_skill_index_files 2026-04-22 17:43:30 -07:00
subdirectory_hints.py fix(agent): catch PermissionError in subdirectory hint discovery 2026-04-09 03:10:30 -07:00
title_generator.py fix: increase max_tokens for GLM 5.1 reasoning headroom 2026-04-22 18:44:07 -07:00
trajectory.py Refactor Terminal and AIAgent cleanup 2026-02-21 22:31:43 -08:00
usage_pricing.py fix(usage): read top-level Anthropic cache fields from OAI-compatible proxies 2026-04-22 17:40:49 -07:00