Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@app/controllers/ibkr_items_controller.rb`:
- Around line 48-49: The redirect calls using redirect_to
settings_providers_path with status: :unprocessable_entity should use a 3xx
redirect status instead of 422; change the status option to a redirect status
(e.g. :see_other or :found) on the redirect_to calls (the ones referencing
settings_providers_path and `@error_message`) so both occurrences that currently
pass status: :unprocessable_entity use a 3xx symbol (prefer :see_other for
POST/Turbo compatibility).
- Around line 185-188: The rescue block in ibkr_items_controller.rb currently
logs the full exception but passes e.message to the end-user via redirect_to
settings_providers_path, alert: t(".failed", message: e.message), which can leak
internals; keep the Rails.logger.error(...) as-is (or enhance it with
e.full_message/backtrace) but change the redirect to use a generic translated
message (e.g. redirect_to settings_providers_path, alert: t(".failed") or
t(".failed_generic")) and remove the message: e.message interpolation; also
update the corresponding translation key (".failed") so it does not expect a
message param.

In `@app/models/account/provider_import_adapter.rb`:
- Around line 594-595: The export currently always assigns exchange_rate in the
attributes hash (exchange_rate) which causes persisted FX rates to be cleared
when the provider omits the field; change the builder in
provider_import_adapter.rb so you only add the exchange_rate attribute when the
incoming value is present (e.g., skip or merge the key when exchange_rate is
nil/blank) instead of unconditionally setting exchange_rate alongside
investment_activity_label, ensuring re-imports don't overwrite an existing
persisted rate.

In `@app/models/family/ibkr_connectable.rb`:
- Around line 12-15: In create_ibkr_item! ensure blank strings don't bypass the
default: replace the current item_name || "Interactive Brokers" usage in the
ibkr_items.create! call with a presence-aware check (e.g. use item_name.presence
or equivalent) so that "" will fall back to "Interactive Brokers" when building
the record in create_ibkr_item!.

In `@app/models/ibkr_account/activities_processor.rb`:
- Around line 150-163: The supported_trade? predicate is rejecting
commission-free trades by requiring row[:ib_commission] and
row[:ib_commission_currency]; remove those two presence checks from
supported_trade? so trades without commission values still pass validation
(leave fx_rate_available?(row) and all other required checks intact), since
import_commission_transaction already handles nil/zero commission values. Ensure
no other logic relies on those fields being present at this validation point.

In `@app/models/ibkr_account/data_helpers.rb`:
- Around line 58-60: The trade_date_for method currently falls back silently to
Date.current when parse_date(row.with_indifferent_access[:trade_date]) returns
nil; update trade_date_for to detect when parse_date returns nil and emit a
structured log (e.g., Rails.logger.warn or the model's logger) including the
original trade_date string and identifying row/context (such as account id,
symbol or full row hash) before returning Date.current so parsing failures are
observable; keep the existing return behavior but add the log in the branch
where parse_date is nil and reference the trade_date_for and parse_date methods
and supported_trade? validation flow.

In `@app/models/ibkr_account/historical_balances_sync.rb`:
- Around line 29-31: The comparison normalizes only the incoming row via the
local variable `currency` but not the stored value; change the guard to compare
normalized values (e.g., compare `currency` to `ibkr_account.currency` after
normalizing the latter) so both sides use the same case/format and you don't
drop valid rows — use `ibkr_account.currency.to_s.upcase` (or `&.upcase`) when
comparing to `currency`.

In `@app/models/ibkr_account/holdings_processor.rb`:
- Around line 40-50: process_group currently takes cost_basis from rows.first
which yields incorrect cost for merged lots; instead compute a weighted-average
per-share cost across rows by summing each row's
(parse_decimal(row[:cost_basis_price]) * parse_decimal(row[:position])) and
dividing by total quantity (rows.sum of parse_decimal(row[:position]) with
BigDecimal("0") fallback), skipping rows with missing values as appropriate,
then use that per-share cost_basis when creating the Holding; update references
in process_group to use this computed weighted per-share cost (and ensure
Holding stores cost_basis as per-share value).

In `@app/models/ibkr_account/processor.rb`:
- Around line 11-15: The call to repair_default_opening_anchor! runs too early
and must be moved after the activity sync so non-valuation entries exist; update
the sequence in the processor to call update_account_balance!, run
IbkrAccount::HoldingsProcessor.new(ibkr_account).process and
IbkrAccount::ActivitiesProcessor.new(ibkr_account).process first, then invoke
repair_default_opening_anchor! so the method (repair_default_opening_anchor!)
can detect the created non-valuation entries produced by
IbkrAccount::ActivitiesProcessor and perform the first-sync correction
correctly.

In `@app/models/ibkr_item.rb`:
- Line 22: The scope `syncable` is filtering `token` with a value-based check
(`where.not(token: [ nil, "" ])`) which fails for non-deterministically
encrypted `token`; change the filter to avoid comparing plaintext values — e.g.
replace the token predicate with a NULL-only check (`where.not(token: nil)`) or
maintain a separate boolean/metadata column for token presence, while leaving
the `query_id` check as-is; update the `scope :syncable` definition accordingly
(reference: scope :syncable, token, query_id).

In `@app/models/ibkr_item/syncer.rb`:
- Around line 12-16: The code currently raises a plain StandardError after
calling collect_health_stats which causes the generic rescue to double-report
the same issue as a sync_error; change the behavior so missing credentials are
signaled with a specific exception (e.g., define IBKRCredentialsMissingError or
IBKR::CredentialsMissing) or simply return early instead of raising
StandardError in the credential-check branches (the block around
ibkr_item.credentials_configured? and the similar block at lines ~52-58); also
add an explicit rescue for that new credentials exception (or rely on the early
return) so the existing generic rescue does not record a duplicate sync_error
for auth problems.

In `@app/models/trade.rb`:
- Around line 21-34: The exchange_rate= setter currently accepts non-positive
numbers; update it so after converting value to Float in exchange_rate= (method)
you check that normalized_value > 0 and treat non-positive values as invalid: if
normalized_value is not > 0 raise an ArgumentError (or otherwise jump to the
rescue path) so the subsequent self.extra merge stores either a positive numeric
exchange_rate with "exchange_rate_invalid" => false or stores the original value
with "exchange_rate_invalid" => true; reference the exchange_rate= method,
normalized_value, and the extra / "exchange_rate_invalid" merge when making the
change.

In `@app/models/transaction.rb`:
- Around line 159-168: activity_security currently memoizes `@activity_security`
and can return stale objects if activity_security_id (derived from
extra["security_id"]) changes; modify activity_security to track the id used for
the cache (e.g. store a cached_id alongside `@activity_security`) and only return
the memoized object if cached_id == activity_security_id, otherwise reload with
Security.find_by and update cached_id; also update
set_preloaded_activity_security(security) to set both `@activity_security` and the
cached_id to security&.id so preloaded values stay in sync.

In `@app/views/ibkr_items/_ibkr_item.html.erb`:
- Around line 19-107: Replace all hard-coded user-facing strings in this partial
with calls to the t(...) i18n helper and move keys into a hierarchical namespace
(e.g., activerecord/views.ibkr_items or views.ibkr_items) so they can be
localized; specifically swap the visible texts "Deletion in progress", "Flex Web
Service", "Syncing", "Credentials need attention", "Error", "Synced ... ago.
...", "Never synced.", menu/link labels "Set up accounts", "Delete", empty-state
headings "Accounts need setup", "No IBKR accounts discovered yet.", and
explanatory lines into translation lookups, and pass translated strings into
components/constructors used here (DS::Tooltip, DS::Menu items, DS::Link, and
CustomConfirm.for_resource_deletion) and into ProviderSyncSummary render calls
as needed so all displayed copy uses t(...) keys.

In `@app/views/ibkr_items/setup_accounts.html.erb`:
- Line 146: Replace the slash-opacity token classes in the markup: change
"border-success/20" to the supported equivalents (e.g. "border-success
border-opacity-20") and change "bg-success/5" to "bg-success bg-opacity-5" (or
other non-slash token variants your design system supports) in the element that
currently contains those classes so the utility classes generate CSS correctly.

In `@app/views/settings/providers/_ibkr_panel.html.erb`:
- Around line 10-120: The partial contains many hard-coded user-facing strings
(setup steps, list items, headings, placeholders, button labels like "Sync" and
"Update Configuration", status text from ibkr_item.sync_status_summary, and the
"Disconnect Interactive Brokers?" confirm) that must be replaced with i18n
lookups; update this view to call t(...) for each visible string (e.g.,
headings, each li text, form.label/placeholder values for :query_id and :token,
button labels used in button_to and form.submit, the turbo_confirm value, the
"Not configured." and the explanatory paragraph) and then add corresponding keys
under config/locales/en.yml (namespace them under something like ibkr_panel.* to
keep them discoverable). Ensure dynamic text like ibkr_item.sync_status_summary
remains unchanged but any surrounding/static fragments use t() and include
interpolation keys where needed.

In `@app/views/settings/providers/show.html.erb`:
- Line 82: Replace the hard-coded section title string with the i18n helper and
add the corresponding locale key; in the ERB view change the settings_section
call to use t('settings.providers.ibkr.title') instead of the literal
"Interactive Brokers Flex Query (beta)" and add a new entry under en -> settings
-> providers -> ibkr -> title in config/locales/en.yml with the same text.

In `@db/migrate/20260510140000_create_ibkr_items_and_accounts.rb`:
- Around line 6-9: The migration creates defaulted columns that remain
nullable—change the column definitions for status, scheduled_for_deletion,
pending_account_setup, and raw_payload to include null: false so defaults cannot
be overridden with NULL, and apply the same null: false enforcement to the other
defaulted state/payload columns referenced around lines 26–29 in this migration;
update their t.string/t.boolean/t.jsonb declarations to add null: false to
ensure DB-level non-null guarantees.

In `@flake.nix`:
- Around line 120-130: The dev Redis instance is using the default TCP endpoint
and may collide with a system Redis; update redis_start and redis_stop to use a
repo-local Unix socket under REDIS_DIR (e.g., "$REDIS_DIR/redis.sock") so the
instance is isolated. In redis_start (function redis_start) add the redis-server
option to create the Unix socket (--unixsocket "$REDIS_DIR/redis.sock") and keep
pidfile/log/dir as before; in redis_stop (function redis_stop) invoke redis-cli
with the socket option (e.g., redis-cli -s "$REDIS_DIR/redis.sock" shutdown
nosave ...) so it only shuts down the repo-local server, and ensure any
references to host/port are removed or replaced with the socket path.

---

Outside diff comments:
In `@app/models/holding/materializer.rb`:
- Around line 145-154: The
cleanup_stale_calculated_rows_on_latest_provider_snapshot method currently
deletes all calculated holdings for a provider_snapshot_date, which risks
removing valid calculated rows when provider snapshots are partial; either add
tests that validate provider snapshot completeness for
account.latest_provider_holdings_snapshot_date and assert that deleting all
account.holdings.where(account_provider_id: nil, date: provider_snapshot_date)
is safe, or refactor this method to follow the targeted approach used in
cleanup_shadowed_calculated_holdings: construct a subquery/join between
account.holdings (where account_provider_id is nil) and provider holdings for
the same account and provider_snapshot_date and delete only calculated rows that
match on security_id, date and currency (and account/provider identifiers)
instead of deleting by date alone.

---

Nitpick comments:
In `@app/models/holding.rb`:
- Around line 259-265: The rescue in amount_in_account_currency currently
swallows Money::ConversionError; update it to log the conversion failure
(including source currency, target account.currency, date, and the error
message/exception) before returning amount so missing exchange-rate incidents
are observable; reference the amount_in_account_currency method and the
Money::ConversionError rescue block and use the model logger (e.g., Rails.logger
or logger) to emit a warn or error-level message with enough context to trace
the failed conversion.

In `@app/models/ibkr_item/unlinking.rb`:
- Line 24: The current unlink loop uses links.each(&:destroy!) which deletes
each Link record individually and can be slow; if AccountProvider#destroy
callbacks are not required during unlink, replace the per-record destroy with a
batched deletion (e.g., use destroy_all or delete_all on the links relation) to
improve performance; locate the call to links.each(&:destroy!) in unlinking.rb
(the unlink flow that pertains to AccountProvider) and switch to
links.destroy_all (or links.delete_all if callbacks and validations must be
skipped) ensuring you pick destroy_all only if callbacks are safe to omit and
AccountProvider#destroy is not needed.

In `@app/models/provider/ibkr_flex.rb`:
- Around line 19-21: Replace hard-coded Flex endpoint and timeout with
env-backed config: read endpoint from an environment variable (e.g.
ENV['IBKR_FLEX_ENDPOINT'] with a sensible default like the current URL) and read
timeout from an environment variable (e.g. ENV['IBKR_FLEX_TIMEOUT'] parsed to
integer with default 120). Use those variables when calling base_uri and when
merging into default_options (the existing default_options.merge! call) while
keeping the existing headers and httparty_ssl_options. Update any relevant
initialization or docs to note the new ENV keys.

In `@app/views/ibkr_items/_ibkr_item.html.erb`:
- Around line 11-13: Replace the raw hex Tailwind classes on the IB badge with
design-system token classes: swap the div's bg-[`#D32F2F`]/10 for the appropriate
background token (e.g., bg-destructive-10 or the project's equivalent token) and
replace the span's text-[`#D32F2F`] with the matching text token (e.g.,
text-destructive-600 or the project's equivalent); update the element with those
token class names (the div with the rounded bg and the span with "IB") so the
component uses the shared Tailwind design tokens instead of hard-coded hex
values.

In `@app/views/ibkr_items/select_existing_account.html.erb`:
- Line 24: The view is formatting currency inline (using number_to_currency and
Money::Currency.new on ibkr_account.current_balance); move this logic to the
server by adding a formatted_balance attribute for each account in the
controller (e.g., when preparing `@available_ibkr_accounts`) or by creating a
helper method (e.g., format_currency_balance(account) used from the controller)
that computes number_to_currency(acct.current_balance || 0, unit:
Money::Currency.new(acct.currency || "USD").symbol) and pass that
formatted_balance to the view so the template only renders
ibkr_account.formatted_balance.

In `@app/views/settings/providers/_ibkr_panel.html.erb`:
- Around line 11-53: The ordered list (<ol>) in _ibkr_panel.html.erb has
multiple <ul> elements as direct children which breaks semantic nesting; move
each <ul> so it is nested inside the preceding related <li> (e.g., wrap the
"Cash Report", "Cash Transactions", "Net Asset Value", "Open Positions",
"Trades" and the "Set the following configuration options" lists inside their
parent <li> elements) so every <ul> is a child of its corresponding <li> and the
<ol> contains only <li> children.

In `@test/models/snaptrade_account_processor_test.rb`:
- Line 134: Remove the fragile stub of
Account.any_instance.stubs(:set_current_balance) so the test exercises the real
Account#set_current_balance behavior and only asserts observable outputs
(balance, cash_balance, currency); delete that stub line and, if the real method
requires setup, initialize the Account fixture or its dependencies (e.g.,
balances, transactions) instead or, if necessary, stub a lower-level external
dependency used by Account#set_current_balance rather than stubbing the method
under test.

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Duplicate comments:
In `@app/models/ibkr_account/processor.rb`:
- Around line 12-14: The call to repair_default_opening_anchor! currently runs
before IbkrAccount::ActivitiesProcessor and can be skipped due to the repair
guard that requires non-valuation entries; move the
repair_default_opening_anchor! invocation to run after
IbkrAccount::ActivitiesProcessor.new(ibkr_account).process (i.e., reorder so
HoldingsProcessor.process, ActivitiesProcessor.process, then
repair_default_opening_anchor!) to ensure the guard sees imported activity
entries.

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@app/models/account/opening_balance_manager.rb`:
- Around line 54-60: The memoized `@oldest_entry_date` uses ||= which caches a
nil/old value and causes stale validation; change it to compute freshest value
on each call by removing the ||= memoization and returning the computed date
directly (i.e., always evaluate the block that checks
opening_anchor_valuation&.entry and calls
account.entries.where.not(...).minimum(:date) or
account.entries.minimum(:date)); update the method/attribute accessor that
references `@oldest_entry_date` so it no longer relies on cached state (or
explicitly clear `@oldest_entry_date` before use) to ensure set_opening_balance
validates against current data.

In `@app/models/ibkr_account/historical_balances_sync.rb`:
- Around line 27-29: The code calls row.with_indifferent_access inside the
filter_map assuming every payload row is a Hash; add a type guard to skip
malformed rows before calling with_indifferent_access (e.g., return nil/next for
nil or non-Hash rows) so the filter_map block only processes valid hashes;
update the block around filter_map/with_indifferent_access to check
row.is_a?(Hash) or respond_to?(:to_hash) and then call with_indifferent_access
and continue using currency = data[:currency].presence&.upcase.

In `@test/models/ibkr_item/syncer_test.rb`:
- Around line 6-16: The test currently constructs IbkrItem::Syncer in setup,
which can capture credentials at initialization and mask the missing-token path;
modify the test "perform_sync records a single auth error when credentials are
missing" to build the syncer after clearing credentials by moving the
instantiation of IbkrItem::Syncer (currently assigned to `@syncer` in setup) into
the test body after `@ibkr_item.update`!(token: nil) (e.g., syncer =
IbkrItem::Syncer.new(`@ibkr_item`)), then call syncer.perform_sync(sync) so
perform_sync executes with the missing-token state.