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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327

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#243
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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
#243
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Description

@AndresL230
AndresL230
opened on Jul 8, 2026

Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127

Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.

Problem

ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.

Verified on main (2026-07-08)

  • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
  • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
  • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.

Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.

Fix

Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.

Status

Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.

Umbrella: #127.

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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) · Issue #327 · SaplingLearn/Sapling · GitHub
    Skip to content
    [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327
    Closed
    #243
    Closed
    [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
    #243
    Assignees
    Darkest-Teddy
    Labels
    P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
    Description
    @AndresL230
    AndresL230
    opened on Jul 8, 2026
    Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127
    Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.
    Problem
    ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.
    Verified on main (2026-07-08)
    • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
    • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
    • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.
    Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.
    Fix
    Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.
    Status
    Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.
    Umbrella: #127.
    Metadata
    Metadata
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    Labels
    P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
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    No type
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      None yet
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      No branches or pull requests
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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) · Issue #327 · SaplingLearn/Sapling · GitHub
      Skip to content
      [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327
      Closed
      #243
      Closed
      [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
      #243
      Assignees
      Darkest-Teddy
      Labels
      P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
      Description
      @AndresL230
      AndresL230
      opened on Jul 8, 2026
      Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127
      Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.
      Problem
      ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.
      Verified on main (2026-07-08)
      • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
      • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
      • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.
      Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.
      Fix
      Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.
      Status
      Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.
      Umbrella: #127.
      Metadata
      Metadata
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      Type
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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) · Issue #327 · SaplingLearn/Sapling · GitHub
        Skip to content
        [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327
        Closed
        #243
        Closed
        [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
        #243
        Assignees
        Darkest-Teddy
        Labels
        P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
        Description
        @AndresL230
        AndresL230
        opened on Jul 8, 2026
        Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127
        Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.
        Problem
        ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.
        Verified on main (2026-07-08)
        • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
        • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
        • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.
        Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.
        Fix
        Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.
        Status
        Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.
        Umbrella: #127.
        Metadata
        Metadata
        Assignees
        Labels
        P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
        Type
        No type
        Projects
        No projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) · Issue #327 · SaplingLearn/Sapling · GitHub
          Skip to content
          [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327
          Closed
          #243
          Closed
          [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
          #243
          Assignees
          Darkest-Teddy
          Labels
          P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
          Description
          @AndresL230
          AndresL230
          opened on Jul 8, 2026
          Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127
          Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.
          Problem
          ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.
          Verified on main (2026-07-08)
          • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
          • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
          • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.
          Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.
          Fix
          Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.
          Status
          Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.
          Umbrella: #127.
          Metadata
          Metadata
          Assignees
          Labels
          P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
          Type
          No type
          Projects
          No projects
            Milestone
            No milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, 'i');
if (__m === '*' || __re.test(location.href)) {
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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) · Issue #327 · SaplingLearn/Sapling · GitHub
            Skip to content
            [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327
            Closed
            #243
            Closed
            [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
            #243
            Assignees
            Darkest-Teddy
            Labels
            P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
            Description
            @AndresL230
            AndresL230
            opened on Jul 8, 2026
            Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127
            Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.
            Problem
            ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.
            Verified on main (2026-07-08)
            • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
            • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
            • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.
            Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.
            Fix
            Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.
            Status
            Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.
            Umbrella: #127.
            Metadata
            Metadata
            Assignees
            Labels
            P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
            Type
            No type
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) · Issue #327 · SaplingLearn/Sapling · GitHub
              Skip to content
              [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327
              Closed
              #243
              Closed
              [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
              #243
              Assignees
              Darkest-Teddy
              Labels
              P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
              Description
              @AndresL230
              AndresL230
              opened on Jul 8, 2026
              Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127
              Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.
              Problem
              ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.
              Verified on main (2026-07-08)
              • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
              • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
              • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.
              Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.
              Fix
              Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.
              Status
              Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.
              Umbrella: #127.
              Metadata
              Metadata
              Assignees
              Labels
              P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
              Type
              No type
              Projects
              No projects
                Milestone
                No milestone
                Relationships
                None yet
                Development
                No branches or pull requests
                Issue actions
                
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[P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) · Issue #327 · SaplingLearn/Sapling · GitHub
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                [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14) #327
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                #243
                Closed
                [P2] ORCHESTRATOR_LIMITS is dead code — tool-using agents run with no ceiling (agent-migration regression, audit #14)#327
                #243
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                P2Medium priorityagentsPydantic AI agents / LLM layerbackendBackend / APIbugSomething isn't workingtech-debtCleanup / maintainability
                Description
                @AndresL230
                AndresL230
                opened on Jul 8, 2026
                Severity: MEDIUM · Source: docs/backend-contract-bug-audit.md finding #14 · Split out of umbrella #127
                Regression introduced when routes moved from legacy <graph_update> XML parsing to Pydantic AI tools.
                Problem
                ORCHESTRATOR_LIMITS (8 req / 10 tool-calls / 100k tokens) is defined but never passed to .run(). The tool-using chat-tutor and quiz agents run with no token or tool-call ceiling.
                Verified on main (2026-07-08)
                • backend/agents/__init__.py:17 — ORCHESTRATOR_LIMITS defined; docstring claims "every agent call site passes via the explicit usage_limits= kwarg".
                • backend/routes/learn.py_chat_via_agent — run_kwargs passes deps / message_history / model / model_settings, no usage_limits.
                • backend/routes/quiz.py:192 — _quiz_via_agentrun_kwargs passes deps / model, no usage_limits.
                Extra context: the refactor/token-unification branch already wired usage_limits=WORKER_LIMITS into every worker agent (document.py, documents.py), so the docstring's claim is true for workers but false for the chat/quiz orchestrators. This issue is the remaining gap.
                Fix
                Pass usage_limits=ORCHESTRATOR_LIMITS in the run_kwargs of _chat_via_agent and _quiz_via_agent.
                Status
                Fix in flight in PR #243. Best sequenced with/after refactor/token-unification so the usage-limits story lands coherently. PR should Closes this issue.
                Umbrella: #127.
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