httpx's brotlicffi backend (pinned for Discord attachment decoding) fails
on Kimi API's content-encoding: br SSE streaming responses with:
brotli: decoder process called with data when can_accept_more_data() is False
This surfaces as 'API call failed after 3 retries: Connection error'
on Windows Desktop where the Electron-packaged Python venv includes
brotlicffi (#59556). DeepSeek and Xiaomi are unaffected — only
moonshot endpoints (api.moonshot.ai, api.moonshot.cn) trigger the bug.
The fix forces Accept-Encoding: gzip so the Kimi API falls back to gzip
compression, which httpx handles reliably on all platforms. This is the
same workaround already applied in tools/skills_hub.py for sitemap
fetches and the Hermes index download.
Closes associated issues: #28043, #48428
(cherry picked from commit 9c130133b0676138858b73847d1d7c7549339484)
Runtime identity resolved through hermes_cli.__version__ (a static 0.0.0
on source installs, rewritten by release stamping) leaked v0.0.0 into
About, /api/health, User-Agents, and plugin compat, and source updates
showed "couldn't reach update server" because identity and channel
authority disagreed with the checkout.
Now: get_version_info() resolves install stamp -> live git -> unknown,
never pyproject metadata, never a package constant. Source checkouts
derive identity from their reachable release tag; the completion tail of
every successful install/update/historical takeover atomically rewrites
install-stamp.json with that identity; a stale source stamp whose commit
no longer matches HEAD defers to live git. ACP/TUI use derived_version
for display and base_version for protocol fields; all ~44 runtime
__version__ consumers migrated; hermes_cli.__version__ and generated
_version.py are gone; release stamping only touches the native manifests
external builders consume (nix/tauri/cargo) and passes release identity
straight into write_install_stamp.py; pyproject.toml stays inert 0.0.0.
Desktop no longer synthesizes a competing install-stamp.json: the
checkout owns its stamp, and desktop-bootstrap classification keys on
the bootstrap-complete marker. verify-bootstrap-version-stamp.py now
cross-checks the checkout's stamp (baseVersion + commit == HEAD).
Validation: 31-file focused suite green (version identity, stamping,
adoption, providers, gateway, acp/tui runtime identity, api server via
extras env, release graph); desktop tsc + 25 vitest green; real-repo
probe: base=unknown derived=git.0635606.dirty source=git on this
checkout; clean-env imports resolve entirely from this tree; windows
footgun + compat-pointer scans clean.
Four chat_completions profiles (kimi-coding, deepseek, opencode-go's Kimi K2 and DeepSeek branches, actual) each hand-rolled the same extra_body.thinking / top-level reasoning_effort translation, and the copies had already drifted in small ways (kimi's `.get("enabled", True)`, deepseek's separate effort parsing). agent.reasoning_effort.thinking_toggle_extras is now the single implementation: the Moonshot default emits effort XOR toggle (both is an HTTP 400), and always_emit_toggle=True covers DeepSeek's contract where the toggle must ride on every request to dodge the reasoning_content echo trap. actual keeps its two contract-specific lines (reasoning_config None -> nothing; effort "none" -> disabled toggle plus reasoning_effort="none", which the relay accepts as a real level) and delegates the rest. ox_alpha_reasoning_extras moves alongside so opencode-free imports it like any other helper instead of reaching into the zen plugin's module through sys.modules and swallowing every exception into ({}, {}) - a failure there previously silently dropped the user's effort setting. No wire behavior changes; tests/plugins/model_providers/test_thinking_toggle_parity.py pins the XOR invariant across the matrix and zen/free parity.
The #89503/#70058/#74295/#87279 bug class kept regenerating because every
transport and provider profile hand-rolled its own effort translation map
(9 sites, 4 distinct policies). New agent/reasoning_effort.py is the single
source of truth:
- EFFORT_LADDER: canonical low->high ordering (superset check against
VALID_REASONING_EFFORTS pinned by test)
- clamp_effort(): one policy — supported passes verbatim, otherwise nearest
WEAKER supported level (never escalate, never invert the ladder), floor
when nothing weaker, 'none' never a degradation target, declared
vendor-documented overrides win, bespoke names pass through
- declared wire vocabularies as data: OpenAI-compat, Codex Responses,
xAI (4.6/legacy), Actual relays, Kimi K3/K2, TokenHub, GLM-5.2,
DeepSeek V4, Ollama Cloud, Meta, Solar
Converted sites (all behavior-preserving except noted):
- chat_completions chokepoint, Kimi + TokenHub paths
- codex transport (backend branches now pick a declared set)
- auxiliary_client Responses path
- hermes_cli.models clamp_reasoning_effort_to_supported -> thin wrapper
- plugins: kimi-coding, zai, opencode-zen, deepseek, ollama-cloud,
meta-ai, upstage, custom (copilot already routes via the wrapper)
Behavior fixes the shared policy surfaces:
- ollama-cloud/opencode-go 'minimal' now degrades to 'low' instead of
being dropped (drop left the server default = MORE thinking than asked)
New tests: ladder contract (every configurable level is clamped by every
declared wire set; monotonicity across the full ladder for every set).
K3 only recognizes low/high/max. Previously the Kimi provider only
forwarded low/medium/high verbatim and dropped every other level
(xhigh/max/ultra/minimal) to the thinking toggle, silently ignoring
the user's requested effort.
Now maps the full Hermes vocabulary onto K3's set, matching K3's own
server-side mapping:
low, minimal → low
medium, high → high
xhigh, max, ultra → max
ref: https://www.kimi.com/code/docs/en/kimi-code/models.html
The Kimi team noticed that traffic from Hermes Coding Plan users
identifies itself as Claude (User-Agent: claude-code/0.1.0) rather
than the actual client. They asked us to update the UA so they can
properly attribute traffic and understand how their services are
accessed — especially important as they open up to more third-party
agents.
Three code paths were sending wrong/attribution-less headers to Kimi:
1. run_agent.py — _apply_client_headers_for_base_url sent
{"User-Agent": "claude-code/0.1.0"} for api.kimi.com. Now sends
the same _AI_GATEWAY_HEADERS set used for Vercel AI Gateway:
HTTP-Referer + X-Title + HermesAgent/{version} User-Agent.
2. agent/anthropic_adapter.py — the Anthropic Messages path for
api.kimi.com/coding sent 'claude-code/0.1.0'. Now sends the same
three-header attribution set.
3. plugins/model-providers/kimi-coding/__init__.py — both kimi and
kimi_cn profiles sent a static 'hermes-agent/1.0' with no
HTTP-Referer or X-Title. Now sends the full three-header set with
a dynamic version, matching the pattern used by the gmi, fireworks,
xai, and ai-gateway provider profiles.
The attribution header set (HTTP-Referer + X-Title + User-Agent) is
the canonical Hermes pattern used for OpenRouter, Vercel AI Gateway,
Fireworks, and other providers that read these headers for traffic
attribution.
The standalone Kimi/Moonshot profile (api.moonshot.ai/v1) sent both
extra_body.thinking AND a top-level reasoning_effort. With no reasoning
config it even defaulted to thinking:enabled + reasoning_effort:medium,
pairing them on every default call. Moonshot treats these as mutually
exclusive (cannot specify both 'thinking' and 'reasoning_effort').
Align with the kimi-k2 handling already shipped for the opencode-go relay:
send effort when a recognized low|medium|high is requested, otherwise fall
back to the extra_body.thinking toggle. Disabled sends thinking:disabled
only. Never both.
Reported by Cars29 (NOUS Discord). DeepSeek was deliberately left untouched:
its native endpoint accepts both (verified by the live guardrail in
test_deepseek_v4_thinking_live.py), so the report's DeepSeek claim does not
hold there.
Tests: tests/plugins/model_providers/test_kimi_profile.py pins the xor
contract across all config shapes.
Six days after #23937 (608 fixes) the codebase had accumulated 241 new
PLR6201 violations. Same mechanical `x in (...)` → `x in {...}` fix,
same zero-risk profile: set lookup is O(1) vs O(n) for tuple and the
two are semantically equivalent for hashable scalar membership tests.
All 241 instances fixed via `ruff check --select PLR6201 --fix
--unsafe-fixes`, zero remaining. Every changed value is a hashable
scalar (str/int/None/enum/signal); no risk of unhashable runtime
errors. No behavior change.
Test plan:
- 119 files changed, +244/-244 (net zero) — exactly one-line edits
- `ruff check` clean afterward
- Compile checks pass on the largest touched files (cli.py, run_agent.py,
gateway/run.py, gateway/platforms/discord.py, model_tools.py)
- Subset broad test run on tests/gateway/ tests/hermes_cli/ tests/agent/
tests/tools/: 18187 passed, 59 pre-existing failures (verified against
origin/main with the same shape — identical failure count, identical
category — all xdist test-order flakes unrelated to this change)
Follows the same template as PR #23937 ([tracker: #23972](https://github.com/NousResearch/hermes-agent/issues/23972)).
Every provider profile is now a self-contained plugin under
plugins/model-providers/<name>/, mirroring the plugins/platforms/
pattern established for IRC and Teams. The ProviderProfile ABC
stays in providers/; the per-provider profile data moves out.
- plugins/model-providers/<name>/__init__.py calls register_provider()
- plugins/model-providers/<name>/plugin.yaml declares kind: model-provider
- providers/__init__.py._discover_providers() lazily scans bundled plugins
then $HERMES_HOME/plugins/model-providers/<name>/ (user override path)
- User plugins with the same name override bundled ones (last-writer-wins
in register_provider)
- Legacy providers/<name>.py layout still supported for back-compat with
out-of-tree editable installs
- Hermes PluginManager: new kind=model-provider; skipped like memory
plugins (providers/ discovery owns them); standalone plugins with
register_provider+ProviderProfile in their __init__.py auto-coerce to
this kind (same heuristic as memory providers)
- skip_names extended to include 'model-providers' so the general
PluginManager doesn't double-scan the category
- 4 new tests in tests/providers/test_plugin_discovery.py covering
bundled discovery, user override, and general-loader isolation
- Docs updated: website/docs/developer-guide/adding-providers.md,
provider-runtime.md, providers/README.md, plugins/model-providers/README.md
No API break: auth.py / config.py / doctor.py / models.py / runtime_provider.py /
model_metadata.py / auxiliary_client.py / chat_completions.py / run_agent.py
all still consume providers via get_provider_profile() / list_providers() —
they just now see plugin-discovered entries instead of pkgutil-iterated ones.
Third parties can now drop a single directory into
~/.hermes/plugins/model-providers/<name>/ to add or override an inference
provider without touching the repo.
