Class: AgentHarness::Providers::Codex

Inherits:
Base
  • Object
show all
Includes:
McpConfigFileSupport, RateLimitResetParsing
Defined in:
lib/agent_harness/providers/codex.rb

Overview

OpenAI Codex CLI provider

Provides integration with the OpenAI Codex CLI tool.

Defined Under Namespace

Classes: StreamingEvent

Constant Summary collapse

SUPPORTED_CLI_VERSION = 
"0.122.0"
SUPPORTED_CLI_REQUIREMENT = 
Gem::Requirement.new(">= #{SUPPORTED_CLI_VERSION}", "< 0.123.0").freeze
DEFAULT_COMPATIBLE_MODEL_ID =

Default model recommended by the Codex runner contract when callers have no explicit preference. Used as the ModelCompatibility::Result#fallback_model_id for unsupported/unknown model lookups so downstream orchestrators (smoke tests, tier fallback) have a stable, contract-backed choice instead of relying on whichever model the CLI's default points at.

"gpt-5-codex"
MODEL_COMPATIBILITY_FACTS =

Known CLI-gated model facts. Each entry may express a minimum Codex CLI version required to drive the model, and/or auth-mode restrictions that are part of the durable runner contract. Keep entries here only when the requirement is durable runner contract knowledge — not provider-side experiments or one-off CLI defaults.

The gpt-5.5 entry tracks the failure class observed in viamin/agent-harness#245 and viamin/agent-harness#250: older Codex CLI builds (e.g. 0.115.x) could not drive the gpt-5.5 family.

{
  "gpt-5.5" => {minimum_cli_version: "0.116.0"},
  "gpt-5.5-codex" => {minimum_cli_version: "0.116.0"},
  "gpt-5.5-pro" => {auth_modes: [:api_key].freeze}
}.each_value(&:freeze).freeze
BASELINE_SUPPORTED_MODELS =

Models that the runner contract considers supported on every Codex CLI release we ship. Used by model_compatibility so callers can distinguish "unknown to the contract" from "explicitly supported."

%w[
  gpt-5
  gpt-5-codex
  gpt-5-mini
  gpt-4o
  gpt-4o-mini
  o4-mini
].freeze
SUPPORTED_AUTH_MODES =

Auth modes the Codex runner accepts. Compatibility checks for an unrecognised auth mode return :auth_mode_not_supported rather than silently approving the request.

%i[api_key subscription].freeze
OAUTH_REFRESH_FAILURE_PATTERNS = 
[
  /refresh_token_reused/i,
  /failed to refresh token\b.*\b401\b/im,
  /failed to refresh token\b.*unauthorized/im,
  /failed to refresh token\b.*\binvalid_client\b/im,
  /failed to refresh token\b.*\binvalid_grant\b/im,
  /failed to refresh token\b.*invalid.*refresh.*token/im,
  /failed to refresh token\b.*refresh.*token.*invalid/im,
  /your access token could not be refreshed because\b.*\b401\b/im,
  /your access token could not be refreshed because\b.*unauthorized/im,
  /your access token could not be refreshed because\b.*\binvalid_client\b/im,
  /your access token could not be refreshed because\b.*\binvalid_grant\b/im,
  /your access token could not be refreshed because\b.*invalid.*refresh.*token/im,
  /your access token could not be refreshed because\b.*refresh.*token.*invalid/im,
  /your access token could not be refreshed because\s+your refresh token .*already (?:been )?used/im,
  /refresh token .*already (?:been )?used/im
].freeze
OAUTH_REFRESH_TRANSIENT_PATTERNS = 
[
  /your access token could not be refreshed because\s+(?:the\s+)?auth(?:entication)? service(?:\s+(?:is|was))?\s+(?:temporarily\s+)?unavailable/im,
  /your access token could not be refreshed because .*connection.*error/im,
  /failed to refresh token\b.*connection.*error/im,
  /failed to refresh token\b.*service(?:\s+(?:is|was))?\s+(?:temporarily\s+)?unavailable/im
].freeze
SHARED_OUTPUT_ERROR_PATTERNS = 
{
  quota_exceeded: [
    /free tier limit reached/i,
    /please upgrade to a paid plan/i,
    /quota.*exceeded/i,
    /insufficient.*quota/i,
    /billing/i
  ],
  rate_limited: [
    /rate.?limit/i,
    /too.?many.?requests/i,
    /\b429\b/
  ],
  auth_expired: [
    /authentication_error/i,
    /invalid_grant/i,
    /Token is expired or invalid/i,
    /unauthorized/i
  ],
  sandbox_failure: [
    /bwrap.*no permissions/i,
    /no permissions to create a new namespace/i,
    /unprivileged.*namespace/i
  ],
  transient_error: [
    /timeout/i,
    /connection.*error/i,
    /service.*unavailable/i,
    /\b503\b/,
    /\b502\b/,
    /connection.*reset/i
  ]
}.tap { |h| h.each_value(&:freeze) }.freeze
STDOUT_ERROR_PATTERNS = 
SHARED_OUTPUT_ERROR_PATTERNS.merge(
  auth_expired: [
    /authentication_error/i,
    /invalid_grant/i,
    /Token is expired or invalid/i,
    /unauthorized/i
  ]
).tap { |h| h.each_value(&:freeze) }.freeze
STDERR_ERROR_PATTERNS = 
SHARED_OUTPUT_ERROR_PATTERNS.merge(
  auth_expired: OAUTH_REFRESH_FAILURE_PATTERNS + [
    /invalid.*api.*key/i,
    /unauthorized/i,
    /authentication_error/i,
    /invalid_grant/i,
    /Token is expired or invalid/i,
    /\b401\b/,
    /incorrect.*api.*key/i
  ],
  transient_error: OAUTH_REFRESH_TRANSIENT_PATTERNS + SHARED_OUTPUT_ERROR_PATTERNS[:transient_error]
).tap { |h| h.each_value(&:freeze) }.freeze

Constants inherited from Base

Base::COMMON_ERROR_PATTERNS, Base::DEFAULT_SMOKE_TEST_CONTRACT

Instance Attribute Summary

Attributes inherited from Base

#config, #executor, #logger

Class Method Summary collapse

Instance Method Summary collapse

Methods included from McpConfigFileSupport

#cleanup_mcp_tempfiles!, #write_mcp_config_file

Methods included from RateLimitResetParsing

#parse_rate_limit_reset

Methods inherited from Base

#configure, #initialize, #parse_container_output, #parse_test_error, #plan_execution, #sandboxed_environment?, #send_chat_message

Methods included from Adapter

#auth_type, #chat_transport, #chat_transport_type, #fetch_mcp_servers, #heartbeat_integration, included, metadata_package_name, #noisy_error_patterns, normalize_metadata_installation, normalize_metadata_source_type, normalize_metadata_version_requirement, #parse_rate_limit_reset, #plan_execution, #smoke_test, #smoke_test_contract, #supports_activity_heartbeat?, #supports_chat?, #supports_dangerous_mode?, #supports_message_tool_injection?, #supports_text_mode?, #supports_token_counting?, #supports_tool_control?, #validate_mcp_servers!

Constructor Details

This class inherits a constructor from AgentHarness::Providers::Base

Class Method Details

.available? ⇒ Boolean

Returns:

  • (Boolean) 


179
180
181
182
 
# File 'lib/agent_harness/providers/codex.rb', line 179

def available?
  executor = AgentHarness.configuration.command_executor
  !!executor.which(binary_name)
end

.binary_name ⇒ Object 



147
148
149
 
# File 'lib/agent_harness/providers/codex.rb', line 147

def binary_name
  "codex"
end

.classify_output_chunk(text, stream:, stdout_buffer: nil) ⇒ nil, Hash

Classify a chunk of output text from the provider CLI in real-time

Can be called during streaming to classify both stdout and stderr chunks as they arrive. For stdout, attempts to parse JSONL events and extract error information from structured output.

Because CommandExecutor reads arbitrary 4096-byte chunks, a single JSONL event may be split across consecutive calls. Pass a String buffer via stdout_buffer that persists across calls so incomplete trailing lines are re-assembled before parsing.

Parameters:

  • text (String) —

    the output chunk to classify

  • stream (:stdout, :stderr) —

    which stream the text came from

  • stdout_buffer (String, nil) (defaults to: nil) —

    mutable String accumulator for incomplete stdout lines across calls (ignored for stderr)

Returns:

  • (nil, Hash) —

    nil if no error detected, or a Hash with :reason (Symbol)



168
169
170
171
172
173
174
175
176
177
 
# File 'lib/agent_harness/providers/codex.rb', line 168

def classify_output_chunk(text, stream:, stdout_buffer: nil)
  return nil if text.nil? || text.strip.empty?

  case normalize_output_stream(stream)
  when :stdout
    classify_stdout_chunk(text, stdout_buffer)
  when :stderr
    classify_stderr_chunk(text)
  end
end

.comparable_cli_version(value) ⇒ Object

Coerce normalized CLI version into a Gem::Version usable for requirement comparison. Returns nil when the value is missing or cannot be parsed — callers treat that as "no installed-version signal," not as a failure.



456
457
458
459
460
461
462
463
464
465
466
467
468
 
# File 'lib/agent_harness/providers/codex.rb', line 456

def comparable_cli_version(value)
  return value if value.is_a?(Gem::Version)
  return nil if value.nil?

  str = value.respond_to?(:strip) ? value.strip : value.to_s
  return nil if str.empty?

  begin
    Gem::Version.new(str)
  rescue ArgumentError
    nil
  end
end

.default_compatible_model_id ⇒ Object 



274
275
276
 
# File 'lib/agent_harness/providers/codex.rb', line 274

def default_compatible_model_id
  DEFAULT_COMPATIBLE_MODEL_ID
end

.discover_models ⇒ Object 



213
214
215
216
217
218
219
 
# File 'lib/agent_harness/providers/codex.rb', line 213

def discover_models
  return [] unless available?

  [
    {name: "codex", family: "codex", tier: "standard", provider: "codex"}
  ]
end

.firewall_requirements ⇒ Object 



193
194
195
196
197
198
199
200
201
 
# File 'lib/agent_harness/providers/codex.rb', line 193

def firewall_requirements
  {
    domains: [
      "api.openai.com",
      "openai.com"
    ],
    ip_ranges: []
  }
end

.installation_contract(version: SUPPORTED_CLI_VERSION) ⇒ Object 



221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
 
# File 'lib/agent_harness/providers/codex.rb', line 221

def installation_contract(version: SUPPORTED_CLI_VERSION)
  version = version.strip if version.respond_to?(:strip)

  unless version.is_a?(String) && !version.empty?
    raise ArgumentError,
      "Unsupported Codex CLI version #{version.inspect}; " \
      "supported versions must satisfy #{SUPPORTED_CLI_REQUIREMENT}"
  end

  parsed_version = begin
    Gem::Version.new(version)
  rescue ArgumentError
    raise ArgumentError,
      "Unsupported Codex CLI version #{version.inspect}; " \
      "supported versions must satisfy #{SUPPORTED_CLI_REQUIREMENT}"
  end

  unless SUPPORTED_CLI_REQUIREMENT.satisfied_by?(parsed_version)
    raise ArgumentError,
      "Unsupported Codex CLI version #{version.inspect}; " \
      "supported versions must satisfy #{SUPPORTED_CLI_REQUIREMENT}"
  end

  default_package = "@openai/codex@#{version}".freeze
  install_command_prefix = ["npm", "install", "-g", "--ignore-scripts"].freeze
  install_command = (install_command_prefix + [default_package]).freeze
  supported_versions = [version].freeze
  version_requirement = SUPPORTED_CLI_REQUIREMENT.requirements
    .map { |op, ver| "#{op} #{ver}".freeze }
    .freeze

  contract = {
    source: :npm,
    package: default_package,
    package_name: "@openai/codex",
    version: version,
    version_requirement: version_requirement,
    binary_name: binary_name,
    install_command_prefix: install_command_prefix,
    install_command: install_command,
    supported_versions: supported_versions
  }

  contract.each_value do |value|
    value.freeze if value.is_a?(String)
  end
  contract.freeze
end

.instruction_file_paths ⇒ Object 



203
204
205
206
207
208
209
210
211
 
# File 'lib/agent_harness/providers/codex.rb', line 203

def instruction_file_paths
  [
    {
      path: "AGENTS.md",
      description: "OpenAI Codex agent instructions",
      symlink: false
    }
  ]
end

.model_compatibility(model_id:, auth_mode: nil, cli_version: nil) ⇒ AgentHarness::ModelCompatibility::Result

Structured Codex compatibility contract.

Returns an ModelCompatibility::Result for the combination of model_id, auth_mode, and installed cli_version. The contract surfaces these concrete outcomes:

  1. Supported — the model is in BASELINE_SUPPORTED_MODELS, or a known CLI-gated model whose stated restrictions are met (a minimum Codex CLI version and/or an auth-mode restriction; some gated models express only one of these).
  2. Unsupported due to auth mode — the requested auth mode is not accepted by the runner at all, or is not available for the specific model (e.g. an api-key-only model requested with subscription auth).
  3. Unsupported due to CLI version — the model is known to need a newer Codex CLI than was supplied; the result carries :minimum_cli_version so callers can act on it.
  4. Unknown / dynamic — the model is not in this static contract, or a gated model was queried without the gating input needed to answer definitively (an auth mode for an auth-restricted model, or an installed CLI version for a version-gated model). Callers must treat this as "ask the provider" rather than as approval.

Parameters:

  • model_id (String, Symbol)
  • auth_mode (Symbol, nil) (defaults to: nil) —

    :api_key or :subscription

  • cli_version (String, Gem::Version, nil) (defaults to: nil)

Returns:



306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
 
# File 'lib/agent_harness/providers/codex.rb', line 306

def model_compatibility(model_id:, auth_mode: nil, cli_version: nil)
  normalized_model_id = model_id.to_s
  normalized_auth_mode = auth_mode&.to_sym
  normalized_cli_version = normalize_cli_version_for_compatibility(cli_version)

  if normalized_auth_mode && !SUPPORTED_AUTH_MODES.include?(normalized_auth_mode)
    return AgentHarness::ModelCompatibility.build_result(
      runner: provider_name,
      model_id: normalized_model_id,
      auth_mode: normalized_auth_mode,
      cli_version: normalized_cli_version,
      supported: false,
      reason: AgentHarness::ModelCompatibility::UNSUPPORTED_AUTH_MODE_REASON,
      fallback_model_id: DEFAULT_COMPATIBLE_MODEL_ID,
      source: :static_contract,
      details: {supported_auth_modes: SUPPORTED_AUTH_MODES}
    )
  end

  gated_fact = MODEL_COMPATIBILITY_FACTS[normalized_model_id]
  if gated_fact
    supported_auth_modes = gated_fact[:auth_modes]
    if normalized_auth_mode && supported_auth_modes && !supported_auth_modes.include?(normalized_auth_mode)
      return AgentHarness::ModelCompatibility.build_result(
        runner: provider_name,
        model_id: normalized_model_id,
        auth_mode: normalized_auth_mode,
        cli_version: normalized_cli_version,
        supported: false,
        reason: AgentHarness::ModelCompatibility::UNSUPPORTED_AUTH_MODE_FOR_MODEL_REASON,
        fallback_model_id: DEFAULT_COMPATIBLE_MODEL_ID,
        source: :static_contract,
        details: {supported_auth_modes: supported_auth_modes}
      )
    end

    # An auth-gated model queried without an auth mode must stay
    # explicit. Returning :supported here would re-introduce the
    # exact permissive false-positive this contract is designed to
    # prevent — `auth_mode` defaults to nil on the public API, so a
    # caller that queries availability without an auth mode and
    # treats `supported? == true` as approval could then schedule an
    # api-key-only model (e.g. gpt-5.5-pro) under subscription. This
    # mirrors the sibling CLI-version dimension below: when the
    # gating input is missing, surface :unknown with the allowed
    # auth modes attached so callers can decide deliberately.
    if supported_auth_modes && normalized_auth_mode.nil?
      return AgentHarness::ModelCompatibility.unknown_result(
        runner: provider_name,
        model_id: normalized_model_id,
        auth_mode: normalized_auth_mode,
        cli_version: normalized_cli_version,
        reason: AgentHarness::ModelCompatibility::UNKNOWN_AUTH_MODE_REASON,
        fallback_model_id: DEFAULT_COMPATIBLE_MODEL_ID,
        source: :static_contract,
        details: {supported_auth_modes: supported_auth_modes}
      )
    end

    minimum_version = gated_fact[:minimum_cli_version]
    if minimum_version
      requirement = Gem::Requirement.new(">= #{minimum_version}")
      comparable_version = comparable_cli_version(normalized_cli_version)

      # A CLI-gated model without a comparable installed version must
      # stay explicit. Returning :supported here would re-introduce the
      # exact `gpt-5.5` failure class this contract is designed to
      # prevent — a caller that cannot supply a version would get
      # `supported? == true` and may still schedule a run onto an old
      # CLI (e.g. 0.115.x). Surface :unknown with the requirement
      # attached so callers can decide deliberately.
      if comparable_version.nil?
        return AgentHarness::ModelCompatibility.unknown_result(
          runner: provider_name,
          model_id: normalized_model_id,
          auth_mode: normalized_auth_mode,
          cli_version: normalized_cli_version,
          reason: AgentHarness::ModelCompatibility::UNKNOWN_CLI_VERSION_REASON,
          minimum_cli_version: minimum_version,
          cli_version_requirement: requirement.to_s,
          fallback_model_id: DEFAULT_COMPATIBLE_MODEL_ID,
          source: :static_contract
        )
      end

      unless requirement.satisfied_by?(comparable_version)
        return AgentHarness::ModelCompatibility.build_result(
          runner: provider_name,
          model_id: normalized_model_id,
          auth_mode: normalized_auth_mode,
          cli_version: normalized_cli_version,
          supported: false,
          reason: AgentHarness::ModelCompatibility::UNSUPPORTED_CLI_VERSION_REASON,
          minimum_cli_version: minimum_version,
          cli_version_requirement: requirement.to_s,
          fallback_model_id: DEFAULT_COMPATIBLE_MODEL_ID,
          source: :static_contract
        )
      end

      return AgentHarness::ModelCompatibility.build_result(
        runner: provider_name,
        model_id: normalized_model_id,
        auth_mode: normalized_auth_mode,
        cli_version: normalized_cli_version,
        supported: true,
        reason: AgentHarness::ModelCompatibility::SUPPORTED_REASON,
        minimum_cli_version: minimum_version,
        cli_version_requirement: requirement.to_s,
        source: :static_contract
      )
    end

    return AgentHarness::ModelCompatibility.build_result(
      runner: provider_name,
      model_id: normalized_model_id,
      auth_mode: normalized_auth_mode,
      cli_version: normalized_cli_version,
      supported: true,
      reason: AgentHarness::ModelCompatibility::SUPPORTED_REASON,
      source: :static_contract
    )
  end

  if BASELINE_SUPPORTED_MODELS.include?(normalized_model_id)
    return AgentHarness::ModelCompatibility.build_result(
      runner: provider_name,
      model_id: normalized_model_id,
      auth_mode: normalized_auth_mode,
      cli_version: normalized_cli_version,
      supported: true,
      reason: AgentHarness::ModelCompatibility::SUPPORTED_REASON,
      source: :static_contract
    )
  end

  AgentHarness::ModelCompatibility.unknown_result(
    runner: provider_name,
    model_id: normalized_model_id,
    auth_mode: normalized_auth_mode,
    cli_version: normalized_cli_version,
    reason: AgentHarness::ModelCompatibility::UNKNOWN_MODEL_REASON,
    fallback_model_id: DEFAULT_COMPATIBLE_MODEL_ID
  )
end

.parse_cli_jsonl_transcript(raw_output, max_events: nil) ⇒ Object 



470
471
472
473
474
475
476
 
# File 'lib/agent_harness/providers/codex.rb', line 470

def parse_cli_jsonl_transcript(raw_output, max_events: nil)
  return parser_instance.send(:parse_jsonl_output, "") if max_events && max_events <= 0

  output = max_events ? tail_nonempty_lines(raw_output, limit: max_events).join("\n") : raw_output

  parser_instance.send(:parse_jsonl_output, output)
end

.parse_streaming_event(line) ⇒ Object

Parse a single Codex JSONL event as it arrives on stdout and classify it for real-time progress tracking. Returns nil for malformed JSON, scalar JSON values, plain-text output, or unsupported event types.



481
482
483
484
485
486
487
488
 
# File 'lib/agent_harness/providers/codex.rb', line 481

def parse_streaming_event(line)
  event = JSON.parse(line.to_s)
  return unless event.is_a?(Hash)

  parser_instance.send(:build_streaming_event, event)
rescue JSON::ParserError, TypeError
  nil
end

.provider_metadata_overrides ⇒ Object 



184
185
186
187
188
189
190
191
 
# File 'lib/agent_harness/providers/codex.rb', line 184

def provider_metadata_overrides
  {
    auth: {
      service: :openai,
      api_family: :openai
    }
  }
end

.provider_name ⇒ Object 



143
144
145
 
# File 'lib/agent_harness/providers/codex.rb', line 143

def provider_name
  :codex
end

.smoke_test_contract ⇒ Object 



270
271
272
 
# File 'lib/agent_harness/providers/codex.rb', line 270

def smoke_test_contract
  Base::DEFAULT_SMOKE_TEST_CONTRACT
end

Instance Method Details

#api_key_env_var_names ⇒ Object 



656
 
# File 'lib/agent_harness/providers/codex.rb', line 656

def api_key_env_var_names = ["OPENAI_API_KEY"]

#api_key_unset_vars ⇒ Object 



658
 
# File 'lib/agent_harness/providers/codex.rb', line 658

def api_key_unset_vars = ["OPENAI_BASE_URL", "OPENAI_HEADER_X_AGENT_RUN_ID", "OPENAI_HEADER_X_PROXY_TOKEN"]

#auth_lock_config ⇒ Object 



853
854
855
 
# File 'lib/agent_harness/providers/codex.rb', line 853

def auth_lock_config
  {path: "/tmp/codex-auth.lock", timeout: 30}
end

#auth_status ⇒ Object 



776
777
778
 
# File 'lib/agent_harness/providers/codex.rb', line 776

def auth_status
  auth_status_for_env({})
end

#build_mcp_flags(mcp_servers, working_dir: nil) ⇒ Object 



678
679
680
681
682
683
 
# File 'lib/agent_harness/providers/codex.rb', line 678

def build_mcp_flags(mcp_servers, working_dir: nil)
  return [] if mcp_servers.empty?

  config_path = write_mcp_config_file(mcp_servers, working_dir: working_dir)
  ["--mcp-config", config_path]
end

#capabilities ⇒ Object 



644
645
646
647
648
649
650
651
652
653
654
 
# File 'lib/agent_harness/providers/codex.rb', line 644

def capabilities
  {
    streaming: false,
    file_upload: false,
    vision: false,
    tool_use: true,
    json_mode: false,
    mcp: true,
    dangerous_mode: true
  }
end

#cli_env_overrides ⇒ Object 



662
 
# File 'lib/agent_harness/providers/codex.rb', line 662

def cli_env_overrides = {"PAID_CODEX_SUBSCRIPTION_AUTH" => "1"}

#config_file_content(options = {}) ⇒ Object 



835
836
837
838
839
840
841
842
843
 
# File 'lib/agent_harness/providers/codex.rb', line 835

def config_file_content(options = {})
  <<~TOML
    [chatgpt]
    model_provider = "#{escape_toml_string(options[:model_provider])}"
    base_url = "#{escape_toml_string(options[:base_url])}"
    env_key = "#{escape_toml_string(options[:env_key])}"
    wire_api = "#{escape_toml_string(options[:wire_api])}"
  TOML
end

#configuration_schema ⇒ Object 



636
637
638
639
640
641
642
 
# File 'lib/agent_harness/providers/codex.rb', line 636

def configuration_schema
  {
    fields: [],
    auth_modes: [:api_key],
    openai_compatible: true
  }
end

#dangerous_mode_flags ⇒ Object 



689
690
691
 
# File 'lib/agent_harness/providers/codex.rb', line 689

def dangerous_mode_flags
  ["--full-auto"]
end

#display_name ⇒ Object 



632
633
634
 
# File 'lib/agent_harness/providers/codex.rb', line 632

def display_name
  "OpenAI Codex CLI"
end

#error_classification_patterns ⇒ Object 



748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
 
# File 'lib/agent_harness/providers/codex.rb', line 748

def error_classification_patterns
  super.merge(
    auth_expired: [
      /refresh_token_reused/i,
      /refresh token has already been used/i,
      /Please log out and sign in again/i,
      /authentication_error/i,
      /invalid_grant/i,
      /Token is expired or invalid/i
    ],
    abort: [
      /free tier limit reached/i,
      /please upgrade to a paid plan/i,
      /bwrap.*no permissions/i,
      /no permissions to create a new namespace/i,
      /unprivileged.*namespace/i
    ]
  )
end

#error_patterns ⇒ Object 



725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
 
# File 'lib/agent_harness/providers/codex.rb', line 725

def error_patterns
  {
    rate_limited: COMMON_ERROR_PATTERNS[:rate_limited],
    timeout: [
      /your access token could not be refreshed.*(?:timeout|timed.?out)/im,
      /failed to refresh token\b.*(?:timeout|timed.?out)/im
    ],
    transient: COMMON_ERROR_PATTERNS[:transient] + [
      /connection.*reset/i
    ] + OAUTH_REFRESH_TRANSIENT_PATTERNS,
    auth_expired: COMMON_ERROR_PATTERNS[:auth_expired] + [
      /\b401\b/,
      /incorrect.*api.*key/i
    ] + OAUTH_REFRESH_FAILURE_PATTERNS,
    quota_exceeded: COMMON_ERROR_PATTERNS[:quota_exceeded],
    sandbox_failure: [
      /bwrap.*no permissions/i,
      /no permissions to create a new namespace/i,
      /unprivileged.*namespace/i
    ]
  }
end

#execution_semantics ⇒ Object 



703
704
705
706
707
708
709
710
711
712
713
714
 
# File 'lib/agent_harness/providers/codex.rb', line 703

def execution_semantics
  {
    prompt_delivery: :arg,
    output_format: :json,
    sandbox_aware: true,
    uses_subcommand: true,
    non_interactive_flag: nil,
    legitimate_exit_codes: [0],
    stderr_is_diagnostic: true,
    parses_rate_limit_reset: false
  }
end

#health_status ⇒ Object 



780
781
782
783
784
785
786
787
788
789
790
791
 
# File 'lib/agent_harness/providers/codex.rb', line 780

def health_status
  unless self.class.available?
    return {healthy: false, message: "Codex CLI not found in PATH. Install from https://github.com/openai/codex"}
  end

  auth = auth_status
  unless auth[:valid]
    return {healthy: false, message: auth[:error]}
  end

  {healthy: true, message: "Codex CLI available and authenticated"}
end

#name ⇒ Object 



628
629
630
 
# File 'lib/agent_harness/providers/codex.rb', line 628

def name
  "codex"
end

#notify_hook_content ⇒ Object 



845
846
847
848
849
850
851
 
# File 'lib/agent_harness/providers/codex.rb', line 845

def notify_hook_content
  <<~TOML

    [notify]
    # Paid notification hook
  TOML
end

#preflight_check(env:, timeout: 10) ⇒ Object 



793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
 
# File 'lib/agent_harness/providers/codex.rb', line 793

def preflight_check(env:, timeout: 10)
  auth = auth_status_for_env(env)
  return {healthy: false, reason: auth[:error], error_category: :authentication} unless auth[:valid]

  version = codex_cli_version(env: env, timeout: timeout)
  unless version
    return {
      healthy: false,
      reason: "Codex CLI version check failed. Ensure 'codex' is installed and available in PATH.",
      error_category: :installation
    }
  end

  unless SUPPORTED_CLI_REQUIREMENT.satisfied_by?(version)
    return {
      healthy: false,
      reason: "Unsupported Codex CLI version #{version}. Expected #{SUPPORTED_CLI_REQUIREMENT}.",
      error_category: :installation
    }
  end

  check_base_url_reachability(env: env, timeout: timeout)
rescue => e
  {healthy: false, reason: "Codex preflight failed: #{e.message}"}
end

#send_message(prompt:, **options) ⇒ Object 



664
665
666
667
668
 
# File 'lib/agent_harness/providers/codex.rb', line 664

def send_message(prompt:, **options)
  super
ensure
  cleanup_mcp_tempfiles!
end

#session_flags(session_id) ⇒ Object 



720
721
722
723
 
# File 'lib/agent_harness/providers/codex.rb', line 720

def session_flags(session_id)
  return [] unless session_id && !session_id.empty?
  ["--session", session_id]
end

#subscription_unset_vars ⇒ Object 



660
 
# File 'lib/agent_harness/providers/codex.rb', line 660

def subscription_unset_vars = ["OPENAI_API_KEY", "OPENAI_BASE_URL"] + api_key_unset_vars

#supported_mcp_transports ⇒ Object 



674
675
676
 
# File 'lib/agent_harness/providers/codex.rb', line 674

def supported_mcp_transports
  %w[stdio http sse]
end

#supports_mcp? ⇒ Boolean

Returns:

  • (Boolean) 


670
671
672
 
# File 'lib/agent_harness/providers/codex.rb', line 670

def supports_mcp?
  true
end

#supports_sessions? ⇒ Boolean

Returns:

  • (Boolean) 


716
717
718
 
# File 'lib/agent_harness/providers/codex.rb', line 716

def supports_sessions?
  true
end

#test_command_overrides ⇒ Object 



685
686
687
 
# File 'lib/agent_harness/providers/codex.rb', line 685

def test_command_overrides
  ["--skip-git-repo-check", "--output-last-message", "/tmp/codex-smoke-output.txt"]
end

#token_usage_from_api_response(body) ⇒ Object 



693
694
695
696
697
698
699
700
701
 
# File 'lib/agent_harness/providers/codex.rb', line 693

def token_usage_from_api_response(body)
  usage = body&.dig("usage")
  return {} unless usage

  {
    input_tokens: usage["prompt_tokens"].to_i,
    output_tokens: usage["completion_tokens"].to_i
  }
end

#translate_error(message) ⇒ Object 



768
769
770
771
772
773
774
 
# File 'lib/agent_harness/providers/codex.rb', line 768

def translate_error(message)
  case message
  when /refresh_token_reused/i then "Codex authentication expired. Please re-authenticate."
  when /free tier limit/i then "Codex free tier limit reached."
  else message
  end
end

#validate_config ⇒ Object 



819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
 
# File 'lib/agent_harness/providers/codex.rb', line 819

def validate_config
  errors = []

  flags = @config.default_flags
  unless flags.nil?
    if flags.is_a?(Array)
      invalid = flags.reject { |f| f.is_a?(String) }
      errors << "default_flags contains non-string values" if invalid.any?
    else
      errors << "default_flags must be an array of strings"
    end
  end

  {valid: errors.empty?, errors: errors}
end