From e5944f98754b9fbb8136a5858a649def056b587b Mon Sep 17 00:00:00 2001
From: Eric Rakestraw <eric@rakestraw.us>
Date: Sun, 24 May 2026 01:02:47 +0000
Subject: [PATCH] Migrate internal architecture docs to docs/internal

---
 docs/architecture.md                   |  20 ++--
 docs/architecture/architecture.md      | 154 +------------------------
 docs/architecture/diagnostics.md       | 107 +----------------
 docs/architecture/output-schemas.md    |  89 +-------------
 docs/architecture/prompts.md           | 119 +------------------
 docs/architecture/structured-llm.md    |  73 +-----------
 docs/architecture/validators.md        |  97 +---------------
 docs/internal/diagnostics-reporting.md |  79 +++++++++++++
 docs/internal/llm-runtime.md           |  67 +++++++++++
 docs/internal/modules.md               |  58 ++++++++++
 docs/internal/output-schemas.md        |  46 ++++++++
 docs/internal/overview.md              |  92 +++++++++++++++
 docs/internal/pipeline.md              |  79 +++++++++++++
 docs/internal/prompts.md               |  62 ++++++++++
 docs/internal/validators.md            |  72 ++++++++++++
 15 files changed, 581 insertions(+), 633 deletions(-)
 create mode 100644 docs/internal/diagnostics-reporting.md
 create mode 100644 docs/internal/llm-runtime.md
 create mode 100644 docs/internal/modules.md
 create mode 100644 docs/internal/output-schemas.md
 create mode 100644 docs/internal/overview.md
 create mode 100644 docs/internal/pipeline.md
 create mode 100644 docs/internal/prompts.md
 create mode 100644 docs/internal/validators.md

diff --git a/docs/architecture.md b/docs/architecture.md
index 56d3466..c538f2c 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -1,14 +1,16 @@
 # Audita Architecture Index
 
-This file is the entrypoint for architecture documentation.
+This file is the architecture documentation entrypoint.
 
-Core architecture overview:
-- [Architecture Overview](./architecture/architecture.md)
+Implemented internals:
+- [Internal Overview](./internal/overview.md)
+- [Pipeline](./internal/pipeline.md)
+- [Modules](./internal/modules.md)
+- [Validators](./internal/validators.md)
+- [LLM Runtime](./internal/llm-runtime.md)
+- [Diagnostics and Reporting](./internal/diagnostics-reporting.md)
+- [Prompts](./internal/prompts.md)
+- [Output Schemas](./internal/output-schemas.md)
 
-Focused architecture contracts:
+External/runtime contract summary:
 - [Public Contract](./architecture/public-contract.md)
-- [Diagnostics](./architecture/diagnostics.md)
-- [Structured LLM](./architecture/structured-llm.md)
-- [Validators](./architecture/validators.md)
-- [Prompts](./architecture/prompts.md)
-- [Output Schemas](./architecture/output-schemas.md)
diff --git a/docs/architecture/architecture.md b/docs/architecture/architecture.md
index 70193af..466473a 100644
--- a/docs/architecture/architecture.md
+++ b/docs/architecture/architecture.md
@@ -1,153 +1,5 @@
-# Audita Architecture
+# Moved: Internal Overview
 
-## Scope
-This document describes the production architecture implemented in this repository today.
+Implemented internal architecture docs now live in [`docs/internal/`](../internal/).
 
-Audita is a single-process Go CLI that:
-- loads effective runtime configuration;
-- reads transcript and glossary inputs;
-- normalizes and sections transcripts;
-- runs a built-in module pipeline with validator chains;
-- writes transcript output and run diagnostics.
-
-## Runtime entrypoints
-Primary CLI commands:
-- `audita process <transcript.json> --glossary <glossary.yaml> [flags]`
-- `audita config validate --config <config.yml>`
-- `audita config print-effective [--config <config.yml>]`
-
-Command ownership lives in `internal/cli/run.go`.
-
-## Configuration model
-`internal/core/config` owns defaults, file parsing, environment overrides, CLI overrides, and validation.
-
-Effective-config loading for `process` and `config print-effective` is centralized in:
-- `ResolveConfigPath`
-- `LoadEffectiveConfig`
-
-Effective precedence for `audita process`:
-1. defaults
-2. config file
-3. environment overrides
-4. CLI overrides
-
-`audita config validate` is intentionally file-only validation:
-- load versioned file;
-- apply onto defaults;
-- validate;
-- do not apply environment overrides.
-
-Supported module and output-schema keys are validated through shared catalogs:
-- module keys: `internal/core/modulecatalog`
-- output schemas: `internal/core/outputschema`
-
-## Pipeline and module orchestration
-The built-in module sequence is configured in runtime config and executed by `internal/framework/runner` through resolved module specs.
-
-Current default sequence:
-- `glossary`
-- `homophones`
-- `glossary`
-- `spoken_word`
-- `grammar`
-
-Execution behavior:
-- modules execute serially over the working transcript;
-- section proposal work can run concurrently within a module;
-- validator execution happens on generated proposals before application;
-- approved proposals are applied once per module in deterministic proposal-index order.
-
-Production modules remain separate packages:
-- `internal/modules/glossary`
-- `internal/modules/homophones`
-- `internal/modules/spoken_word`
-- `internal/modules/grammar`
-
-## Proposal generation and prompt context
-Shared proposal plumbing is centralized in `internal/framework/proposal_generation`.
-
-Module packages provide:
-- module identity and replacement policy;
-- module-specific prompt message building;
-- built-in validator chain selection.
-
-Shared prompt payload helpers are in `internal/framework/promptcontext`.
-
-## Validator architecture
-Built-in validator construction and chain composition live in `internal/validators`.
-
-Shared validator runtime mechanics live in `internal/framework/validators`.
-
-Execution class metadata (deterministic vs LLM-backed) is centralized in `internal/validators/metadata` and used for ordering and reporting classification.
-
-## Structured LLM boundary
-All production LLM calls go through the internal contract:
-- `contracts.StructuredLLMClient`
-- `CompleteStructured(ctx, req, out)`
-
-The OpenAI-compatible HTTP adapter is implemented in `internal/framework/llm`.
-
-Structured response schemas are registered in `internal/framework/responseschema` and attached to requests via `response_format` metadata.
-
-Malformed structured-output detection is centralized in `internal/framework/structuredoutput` and reused by proposal generation and validator execution so downgrade behavior stays consistent.
-
-## Stage naming and diagnostics metadata
-Diagnostics stage naming is centralized in `internal/framework/stagename`:
-- module proposal stage names;
-- proposal-generation stage names;
-- validator batch stage names.
-
-Prompt metadata and response-schema metadata each expose canonical diagnostics maps via:
-- `prompts.Metadata.DiagnosticsMap()`
-- `responseschema.Schema.DiagnosticsMap()`
-
-## Diagnostics and reporting
-Run-directory artifacts are owned by `internal/core/diagnostics`.
-
-Stable artifact names are centralized constants (for example transcript artifacts, `invocation.json`, `effective-config.json`, `utilization-diagnostics.json`, `correction-ledger.json`, `report.json`, `error.log`).
-
-Report diagnostics path metadata is constructed through `BuildDiagnosticsMetadata`, which keeps run-directory artifact references consistent between success and failure reports.
-
-## Secret redaction
-Redaction responsibilities are split by concern:
-- structural config redaction: `config.Config.Redacted()`
-- byte/string payload redaction for diagnostics and surfaced errors: framework redaction utilities.
-
-Configured LLM secret extraction is centralized in `llm.ConfiguredSecrets(cfg)` and reused across proposal and validator diagnostics paths.
-
-## Output contracts
-Transcript output schema selection is owned by `internal/core/outputschema`.
-
-Supported schemas:
-- `bare-segments`
-- `audita-v1`
-
-Unknown schema keys fail validation and runtime resolution.
-
-## Key package map
-Core packages:
-- `internal/core/config`
-- `internal/core/schema`
-- `internal/core/normalization`
-- `internal/core/chunking`
-- `internal/core/diagnostics`
-- `internal/core/reporting`
-- `internal/core/modulecatalog`
-- `internal/core/outputschema`
-
-Framework packages:
-- `internal/framework/contracts`
-- `internal/framework/proposals`
-- `internal/framework/proposal_generation`
-- `internal/framework/promptcontext`
-- `internal/framework/runner`
-- `internal/framework/validators`
-- `internal/framework/llm`
-- `internal/framework/responseschema`
-- `internal/framework/stagename`
-- `internal/framework/structuredoutput`
-
-Domain packages:
-- `internal/modules/*`
-- `internal/validators/*`
-- `internal/prompts`
+Start with [`docs/internal/overview.md`](../internal/overview.md).
diff --git a/docs/architecture/diagnostics.md b/docs/architecture/diagnostics.md
index a96bf3a..307019f 100644
--- a/docs/architecture/diagnostics.md
+++ b/docs/architecture/diagnostics.md
@@ -1,104 +1,5 @@
-# Audita Diagnostics
+# Moved: Diagnostics and Reporting
 
-This document describes the run-directory diagnostics artifacts produced by `audita process`.
-
-## Purpose
-
-Diagnostics provide machine-readable run context and execution artifacts for:
-- failure debugging;
-- validator/correction review;
-- post-run performance analysis.
-
-Diagnostics are written under the configured work directory (`--work-dir`) when run-directory initialization succeeds.
-
-## Core artifacts
-
-Typical artifacts in each run directory:
-- `source-transcript.json`
-- `source-transcript-parsed.json`
-- `normalized-transcript.json`
-- `normalization-summary.json`
-- `chunking-summary.json`
-- `invocation.json`
-- `effective-config.json` (redacted)
-- module/validator LLM interaction artifacts
-- `report.json`
-- `error.log` on failure
-
-## Utilization diagnostics artifact
-
-Artifact:
-- `utilization-diagnostics.json`
-
-High-level fields:
-- `effective_concurrency`:
-  - total/proposal/validation LLM concurrency limits in effect.
-- `run_timing`:
-  - run wall time;
-  - scheduler queue wait time;
-  - LLM execution time;
-  - deterministic validator time;
-  - max/average in-flight LLM calls.
-- `llm_calls`:
-  - total proposal and validation LLM call counts.
-- `modules`:
-  - module-level timing summaries.
-- `validators`:
-  - per-validator timing summaries keyed by stable validator key.
-
-## Correction ledger artifact
-
-Artifact:
-- `correction-ledger.json`
-
-Ledger records are flattened review entries derived from module results and include:
-- module/proposal identity (`module_key`, `module_instance`, `proposal_index`, `segment_id`);
-- correction text fields and replacement policy when available;
-- disposition:
-  - `applied`
-  - `rejected`
-  - `skipped`
-  - `failed`
-- stable reason codes/messages;
-- deterministic and LLM validator decision snapshots using stable validator keys.
-
-Validator rejection and proposal-application skip are distinct dispositions.
-Module warnings are reported in module results and diagnostics metadata, but do not create standalone correction-ledger rows.
-
-## Report references
-
-`report.json` and optional `--report-json` output include diagnostics metadata paths for:
-- utilization diagnostics artifact;
-- correction ledger artifact;
-- existing transcript/normalization/chunking/invocation/effective-config artifacts.
-
-Module report entries also include warning records for malformed proposal-generation payloads and malformed validator batches.
-
-## Retention behavior
-
-Run-directory retention follows configured policy:
-- `always`: keep all run directories;
-- `never`: keep successful run directories;
-- `auto`: keep failed runs and successful runs with skipped/rejected corrections.
-
-## Redaction guarantees
-
-API keys and other configured secrets are redacted from:
-- `effective-config.json`;
-- LLM interaction diagnostics artifacts;
-- reports and surfaced errors.
-
-## Debugging guide
-
-When debugging:
-- slow runs:
-  - inspect `utilization-diagnostics.json` (`run_timing`, `modules`, `validators`, in-flight metrics).
-- validator rejections:
-  - inspect `correction-ledger.json` rejected entries and matching validator decisions;
-  - inspect validator response diagnostics payloads.
-- module warnings:
-  - inspect module `warnings` entries in `report.json` or `--report-json`;
-  - follow any diagnostic artifact path on the warning to the recorded error/response payload.
-- application skips:
-  - inspect `correction-ledger.json` skipped entries and skip reason codes;
-  - compare with validator decisions to distinguish validation rejection vs apply-time skip.
+Implemented diagnostics and reporting internals now live at:
+- [`docs/internal/diagnostics-reporting.md`](../internal/diagnostics-reporting.md)
+- [`docs/operations.md`](../operations.md)
diff --git a/docs/architecture/output-schemas.md b/docs/architecture/output-schemas.md
index b170438..dbd5f58 100644
--- a/docs/architecture/output-schemas.md
+++ b/docs/architecture/output-schemas.md
@@ -1,88 +1,3 @@
-# Audita Output Schemas
+# Moved: Output Schemas
 
-This document describes the built-in transcript output schema registry used by `audita process`.
-
-## Supported schema names
-
-### `bare-segments`
-
-Status:
-- implemented
-- default output schema
-
-Shape:
-- top-level JSON array of transcript segments
-
-Segment fields:
-- `id`
-- `speaker`
-- `start`
-- `end`
-- `text`
-- optional `categories`
-
-Compatibility:
-- this preserves the long-standing output shape used by existing consumers.
-
-### `audita-v1`
-
-Status:
-- implemented
-
-Shape:
-- top-level JSON object:
-  - `schema`: `"audita-v1"`
-  - `version`: `"v1"`
-  - `segments`: transcript segment array
-
-Segment fields inside `segments` match `bare-segments` segment fields.
-
-Compatibility:
-- this is the Audita-native object format with explicit schema/version metadata.
-
-### `seriatim-intermediate`
-
-Status:
-- deferred / not implemented
-
-Current behavior:
-- selecting `seriatim-intermediate` fails clearly as an unsupported output schema.
-
-Reason:
-- a concrete, repository-backed contract for this schema has not been finalized yet.
-
-## Selection
-
-Choose output schema with CLI:
-
-```sh
-audita process <transcript.json> --glossary <glossary.yaml> --output-schema audita-v1
-```
-
-Or in file config:
-
-```yaml
-version: 1
-output:
-  schema: audita-v1
-```
-
-Precedence remains:
-1. defaults
-2. file config
-3. environment overrides
-4. CLI overrides
-
-`--output-schema` overrides `output.schema` when both are supplied.
-
-## Output routing behavior
-
-- With `--output`, transcript JSON is written to file using the selected schema and stdout stays empty on success.
-- Without `--output`, stdout contains transcript JSON only, using the selected schema.
-- `--report-json` writes report JSON to file and does not write report payloads to stdout.
-
-## Backward-compatibility expectations
-
-- default schema stays `bare-segments` for compatibility unless explicitly changed in a future breaking release;
-- supported schema names are treated as stable public contract values;
-- unsupported schema names fail before output write.
+Implemented output schema registry docs now live at [`docs/internal/output-schemas.md`](../internal/output-schemas.md).
diff --git a/docs/architecture/prompts.md b/docs/architecture/prompts.md
index 2e684c4..1e2b909 100644
--- a/docs/architecture/prompts.md
+++ b/docs/architecture/prompts.md
@@ -1,118 +1,3 @@
-# Audita Prompts
+# Moved: Prompt Registry
 
-This document describes Audita's built-in embedded prompt assets and prompt registry behavior.
-
-## Why embedded prompt assets
-
-Audita embeds production prompt text into the binary so runtime behavior is:
-- deterministic;
-- auditable;
-- dependency-light;
-- not dependent on external prompt files at execution time.
-
-Prompt text is authored as Markdown assets and rendered by Go code using typed template data.
-
-## Built-in prompt registry
-
-The prompt registry lives in `internal/prompts` and is responsible for:
-- loading embedded prompt assets;
-- registering stable prompt IDs and versions;
-- recording prompt source metadata;
-- computing deterministic SHA-256 source hashes;
-- rendering system/user prompts with strict missing-key failures.
-
-Current prompt source behavior:
-- built-in embedded prompts only (`prompt_source = builtin`).
-- filesystem prompt overrides are not supported.
-
-## Built-in prompt IDs
-
-Module proposal prompts:
-- `modules.glossary.proposal`
-- `modules.homophones.proposal`
-- `modules.spoken_word.proposal`
-- `modules.grammar.proposal`
-
-LLM-backed validator prompts:
-- `validators.spoken_form_plausibility`
-- `validators.meaning_reversal_review`
-- `validators.editorial_review`
-- `validators.grammar_review`
-- `validators.spoken_word_review`
-
-## Prompt version semantics
-
-Current built-in prompt version value is `v1`.
-
-Version is a stable metadata identifier for diagnostics and debugging. It is not a dynamic prompt-selection mechanism.
-
-## Prompt hash semantics
-
-Each registered prompt includes a deterministic SHA-256 hash of embedded source text.
-
-Hash purpose:
-- identify exact prompt source used in a run;
-- support diagnostics reproducibility and change auditing.
-
-Current hash scope:
-- source prompt text (system + user assets for a registered prompt), not a runtime secret-bearing payload.
-
-## Template rendering behavior
-
-Prompt rendering uses Go `text/template` with typed template data from module/validator builders.
-
-Missing-key behavior:
-- rendering uses missing-key errors;
-- missing/renamed template fields fail quickly instead of silently producing incomplete prompts.
-
-Go code still owns:
-- structured request/response models;
-- response schema selection;
-- transcript/glossary/payload formatting;
-- module and validator selection;
-- diagnostics wiring.
-
-## Shared prompt hardening policy
-
-A shared hardening fragment is embedded once and included in every module proposal prompt and every LLM-validator prompt.
-
-Hardening policy includes:
-- transcript text is untrusted data;
-- glossary entries and transcript descriptions are reference data, not instructions;
-- instructions found inside transcript text must not be obeyed;
-- model must perform only the requested correction/validation task;
-- no invention of facts, names, events, motivations, speaker intent, or corrections;
-- transcript remains the source of truth.
-
-## Transcript description behavior
-
-Transcript description remains background-only prompt context:
-- it may help interpret ambiguous terms;
-- it is explicitly non-authoritative and must not override transcript content;
-- empty descriptions do not render awkward blank context sections.
-
-Generated transcript descriptions are not implemented in this workstream.
-
-## Diagnostics and report metadata boundaries
-
-Current metadata flow:
-- proposal-generation diagnostics request metadata includes prompt metadata;
-- LLM-validator diagnostics request metadata includes prompt metadata.
-
-Prompt metadata fields used in diagnostics:
-- `prompt_id`
-- `prompt_version`
-- `prompt_source`
-- `embedded_path`
-- `sha256`
-
-Current boundary:
-- detailed prompt metadata is diagnostics-first;
-- broad report-level prompt registries/ledgers are deferred.
-
-## 1.0 boundary
-
-Not implemented for 1.0 in this workstream:
-- filesystem prompt overrides;
-- user-configurable prompt selection;
-- external prompt directories.
+Implemented prompt registry and prompt metadata docs now live at [`docs/internal/prompts.md`](../internal/prompts.md).
diff --git a/docs/architecture/structured-llm.md b/docs/architecture/structured-llm.md
index 3d31332..91d1092 100644
--- a/docs/architecture/structured-llm.md
+++ b/docs/architecture/structured-llm.md
@@ -1,72 +1,3 @@
-# Structured LLM Architecture
+# Moved: LLM Runtime
 
-## Scope
-This document describes Audita's structured LLM runtime boundary and adapter behavior.
-
-## Runtime boundary
-Production LLM integration depends on the internal contract only:
-- `contracts.StructuredLLMClient`
-- `CompleteStructured(ctx, req, out)`
-
-Provider SDK types do not leak past this boundary.
-
-## Adapter ownership
-`internal/framework/llm` owns the OpenAI-compatible HTTP adapter and shared LLM runtime utilities.
-
-Key responsibilities:
-- request assembly;
-- timeout/cancellation propagation;
-- bounded retry behavior;
-- scheduler integration;
-- provider response decoding;
-- error redaction.
-
-## Structured schema registry
-Structured response schemas are registered in `internal/framework/responseschema` and include stable metadata:
-- `id`
-- `version`
-- `name`
-- `json_schema`
-- `sha256`
-
-Current schema keys:
-- `correction_set`
-- `validator_decision_set`
-
-Schema metadata is attached to diagnostics through `Schema.DiagnosticsMap()`.
-
-## Request shape assumptions
-Audita targets OpenAI-compatible chat-completions endpoints and sends structured requests with:
-- model;
-- chat messages;
-- `response_format.type = json_schema`;
-- schema name and JSON schema payload.
-
-## Local validation remains mandatory
-Provider schema enforcement is treated as transport-level guardrails.
-
-Audita still validates output locally before applying behavior changes:
-- proposal decoding and proposal invariants;
-- validator decision decoding and cardinality checks;
-- deterministic validation and apply-time rules.
-
-## Shared malformed-output policy
-Malformed structured-output classification is centralized in `internal/framework/structuredoutput`.
-
-Proposal generation and validator execution both use this shared classifier so downgrade behavior cannot drift between the two paths.
-
-## Secrets and redaction
-Secret extraction for LLM redaction is centralized in `llm.ConfiguredSecrets(cfg)` and reused by proposal and validator diagnostics writers.
-
-Secrets are redacted from:
-- diagnostics artifacts;
-- report artifacts;
-- surfaced adapter/runtime errors.
-
-## Concurrency and scheduling
-LLM execution is constrained by composed scheduler limits:
-- total LLM concurrency;
-- proposal LLM concurrency;
-- validation LLM concurrency.
-
-The scheduler is FIFO and context-aware so permits are released on success, failure, and cancellation.
+Implemented structured LLM runtime docs now live at [`docs/internal/llm-runtime.md`](../internal/llm-runtime.md).
diff --git a/docs/architecture/validators.md b/docs/architecture/validators.md
index 08c84b2..b55f6d1 100644
--- a/docs/architecture/validators.md
+++ b/docs/architecture/validators.md
@@ -1,96 +1,3 @@
-# Audita Validators
+# Moved: Validators
 
-## Scope
-This document defines the built-in validator system used by production module runs.
-
-## Ownership boundaries
-Built-in validator keys, constructors, and module chains are owned by `internal/validators`.
-
-Shared runtime execution mechanics are owned by `internal/framework/validators`, including:
-- validator request/result models;
-- deterministic proposal checks;
-- LLM validator batching and execution;
-- decision-cardinality enforcement;
-- diagnostics integration.
-
-Execution class metadata is owned by `internal/validators/metadata`.
-
-## Stable validator keys
-Deterministic:
-- `proposal_shape`
-- `confidence_threshold`
-- `original_text_presence`
-- `non_empty_corrected_text`
-- `no_effect`
-- `protected_terms`
-
-LLM-backed:
-- `spoken_form_plausibility`
-- `meaning_reversal_review`
-- `editorial_review`
-
-## Built-in module chains
-`glossary`:
-- `proposal_shape`
-- `no_effect`
-- `original_text_presence`
-- `confidence_threshold`
-- `protected_terms`
-- `non_empty_corrected_text`
-- `spoken_form_plausibility`
-- `meaning_reversal_review`
-
-`homophones`:
-- `proposal_shape`
-- `no_effect`
-- `original_text_presence`
-- `confidence_threshold`
-- `protected_terms`
-- `non_empty_corrected_text`
-- `spoken_form_plausibility`
-- `meaning_reversal_review`
-
-`spoken_word`:
-- `proposal_shape`
-- `no_effect`
-- `original_text_presence`
-- `confidence_threshold`
-- `protected_terms`
-- `non_empty_corrected_text`
-- `editorial_review`
-- `meaning_reversal_review`
-
-`grammar`:
-- `proposal_shape`
-- `no_effect`
-- `original_text_presence`
-- `confidence_threshold`
-- `protected_terms`
-- `non_empty_corrected_text`
-- `editorial_review`
-- `meaning_reversal_review`
-
-## Ordering and execution semantics
-Validator ordering is based on canonical metadata:
-- deterministic validators run before LLM-backed validators.
-
-Within each module stage:
-- proposals are generated per section;
-- validator chains execute on those proposals;
-- approved proposals are applied once after section work settles.
-
-## Malformed payload behavior
-Malformed structured-output from proposal generation and LLM validator calls is downgraded, not treated as a process-fatal transport error.
-
-Current outcomes:
-- malformed proposal-generation payloads produce section/module warnings and zero proposals for the affected section;
-- malformed validator decision payloads reject the affected validator batch with warnings;
-- deterministic validator behavior and runner order remain unchanged.
-
-## Reporting identity
-Reports and diagnostics use stable validator keys as identifiers.
-
-Correction-ledger deterministic-vs-LLM classification is derived from canonical validator metadata, not package-local hardcoded maps.
-
-## Prompt assets
-LLM validator prompt assets and prompt metadata are documented in [Prompts](./prompts.md).
+Implemented validator architecture docs now live at [`docs/internal/validators.md`](../internal/validators.md).
diff --git a/docs/internal/diagnostics-reporting.md b/docs/internal/diagnostics-reporting.md
new file mode 100644
index 0000000..ebf4a7b
--- /dev/null
+++ b/docs/internal/diagnostics-reporting.md
@@ -0,0 +1,79 @@
+# Audita Diagnostics and Reporting
+
+## Scope
+
+This document describes diagnostics artifacts, process report mapping, and correction ledger generation.
+
+## Run Directory Ownership
+
+`internal/core/diagnostics` owns run-directory creation, artifact writes, and retention decisions.
+
+Stable artifact names include:
+- `source-transcript.json`
+- `source-transcript-parsed.json`
+- `normalized-transcript.json`
+- `normalization-summary.json`
+- `chunking-summary.json`
+- `utilization-diagnostics.json`
+- `correction-ledger.json`
+- `invocation.json`
+- `effective-config.json`
+- `report.json`
+- `error.log` (failure)
+
+## Process Report Mapping
+
+`internal/framework/processreport` maps runner/CLI execution facts into `reporting.ProcessReport`.
+
+Report metadata fields include:
+- `report_schema_name` (`audita-process-report`)
+- `report_schema_version` (`v1`)
+- `output_schema`
+- `config_version` (when file config exists)
+
+The report includes:
+- top-level status/error phase/error message;
+- normalization/chunking summaries;
+- diagnostics metadata paths;
+- per-module results and module summary.
+
+## Correction Ledger
+
+`internal/framework/processreport/BuildCorrectionLedger` flattens run results into `correction-ledger.json` entries.
+
+Dispositions:
+- `applied`
+- `skipped`
+- `rejected`
+- `failed`
+
+Validator decisions are split into deterministic and LLM-backed groups using validator metadata classification.
+
+## Report Write Paths
+
+- run directory always attempts to write `report.json` when possible;
+- optional `--report-json` writes an external report file;
+- on failure paths, report writing is best-effort and does not mask primary run errors.
+
+## Retention Interaction
+
+Current retention behavior:
+- failed runs are retained;
+- `always` keeps successful runs;
+- `auto` removes only clean successful runs;
+- `never` currently retains successful runs in current implementation.
+
+## Redaction
+
+Redacted data expectations:
+- effective config artifact uses config redaction;
+- diagnostics payloads and surfaced errors use LLM secret redaction;
+- reports should not include raw API key values.
+
+## Key Tests
+
+- `internal/core/diagnostics/*_test.go`
+- `internal/framework/processreport/*_test.go`
+- `internal/core/reporting/report_test.go`
+- `internal/cli/run_test.go`
+- `cmd/audita/main_integration_test.go`
diff --git a/docs/internal/llm-runtime.md b/docs/internal/llm-runtime.md
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+# Audita LLM Runtime
+
+## Scope
+
+This document describes the structured LLM runtime and scheduler behavior.
+
+## Client Boundary
+
+All runtime LLM calls go through `contracts.StructuredLLMClient`.
+
+Primary adapter:
+- `internal/framework/llm/OpenAICompatibleClient`
+
+## Request/Response Behavior
+
+The OpenAI-compatible adapter sends chat completions requests with:
+- model;
+- messages;
+- `response_format.type = json_schema`;
+- strict schema envelope (`name`, `schema`, `strict=true`).
+
+The response is decoded into the requested structured output target.
+
+## Response Schema Registry
+
+Structured response schemas are registered in `internal/framework/responseschema`:
+- `correction_set`
+- `validator_decision_set`
+
+Each schema includes stable diagnostics metadata (`id`, `version`, `name`, `sha256`).
+
+## Retries and Error Handling
+
+Adapter retries apply to retryable conditions (for example transport/decoding/retryable status classes) up to configured `max_retries`.
+
+Errors are sanitized to redact configured API-key values before surfacing.
+
+Malformed structured output detection is shared through `internal/framework/structuredoutput` and is used by:
+- proposal generation;
+- LLM-backed validators.
+
+## Scheduling and Concurrency
+
+`internal/framework/llm/Scheduler` provides FIFO, context-aware permit gating.
+
+Runner composes scheduler limits across:
+- total LLM concurrency;
+- proposal LLM concurrency;
+- validation LLM concurrency.
+
+Scheduler release is guarded to avoid permit leaks on cancellation/error.
+
+## Diagnostics and Redaction
+
+`internal/framework/llm/DiagnosticsWriter` writes request/response/error artifacts.
+
+Configured secrets are derived from `llm.ConfiguredSecrets(cfg)` and redacted from:
+- diagnostics payloads;
+- surfaced runtime/adapter errors.
+
+## Key Tests
+
+- `internal/framework/llm/openai_compatible_client_test.go`
+- `internal/framework/llm/scheduler_test.go`
+- `internal/framework/llm/diagnostics_test.go`
+- `internal/framework/responseschema/registry_test.go`
+- `internal/framework/structuredoutput/malformed_test.go`
diff --git a/docs/internal/modules.md b/docs/internal/modules.md
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+++ b/docs/internal/modules.md
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+# Audita Modules
+
+## Scope
+
+This document covers module contracts and built-in module packages.
+
+## Module Contract
+
+Modules implement `contracts.TranscriptModule`:
+- `Key()`
+- `ReplacementPolicy()`
+- `Validators()`
+- `Propose(ctx, req)`
+
+Runner resolves configured module specs to module instances through `internal/framework/modules`.
+
+## Built-In Modules
+
+Current module packages:
+- `internal/modules/glossary`
+- `internal/modules/homophones`
+- `internal/modules/spoken_word`
+- `internal/modules/grammar`
+
+Current replacement policies:
+- `glossary`: `replace_all`
+- `homophones`: `require_unique`
+- `spoken_word`: `require_unique`
+- `grammar`: `require_unique`
+
+## Proposal Generation Ownership
+
+Shared proposal-generation plumbing is centralized in:
+- `internal/framework/proposal_generation`
+
+Module packages own:
+- prompt selection (`internal/prompts` prompt IDs);
+- module-specific prompt payload construction.
+
+Shared prompt helpers live in `internal/framework/promptcontext`.
+
+## Validator Chain Ownership
+
+Built-in chains are resolved in `internal/validators` per module key.
+Module packages call the built-in chain resolver at construction.
+
+## Failure and Warning Behavior
+
+- module setup failures surface as `runner_setup` or module setup errors;
+- module runtime failures surface as `runner_execution` with partial module results preserved;
+- malformed structured proposal payloads are downgraded to warnings and section-level proposal rejection.
+
+## Key Tests
+
+- `internal/modules/*/module_test.go`
+- `internal/framework/modules/registry_test.go`
+- `internal/framework/proposal_generation/*_test.go`
+- `internal/cli/run_test.go` (pipeline/report integration)
diff --git a/docs/internal/output-schemas.md b/docs/internal/output-schemas.md
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+++ b/docs/internal/output-schemas.md
@@ -0,0 +1,46 @@
+# Audita Output Schemas
+
+## Scope
+
+This document describes the implemented transcript output schema registry.
+
+## Registry Ownership
+
+Output schema registry is owned by `internal/core/outputschema`.
+
+Supported schema keys:
+- `bare-segments`
+- `audita-v1`
+
+## Schemas
+
+`bare-segments`:
+- top-level JSON array of transcript segments.
+
+`audita-v1`:
+- top-level JSON object with:
+  - `schema: "audita-v1"`
+  - `version: "v1"`
+  - `segments: [...]`
+
+Segment fields include `id`, `speaker`, `start`, `end`, `text`, and optional `categories`.
+
+## Validation and Resolution
+
+Config validation and runtime resolution both reject unsupported schema keys.
+
+Unknown schema keys fail with `unsupported output schema` before output emission.
+
+## Output Emission
+
+The selected schema is used by `audita process` when writing:
+- output file (`--output`) or
+- stdout (when no `--output`).
+
+Report metadata records selected `output_schema`.
+
+## Key Tests
+
+- `internal/core/outputschema/registry_test.go`
+- `internal/core/config/config_test.go`
+- `internal/cli/run_test.go`
diff --git a/docs/internal/overview.md b/docs/internal/overview.md
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--- /dev/null
+++ b/docs/internal/overview.md
@@ -0,0 +1,92 @@
+# Audita Internal Overview
+
+## Scope
+
+This document is the internal architecture entry point for developers and coding agents.
+
+It summarizes:
+- package boundaries;
+- the main `process` execution path;
+- where to add new code safely.
+
+## Package Map
+
+CLI and command orchestration:
+- `internal/cli`
+
+Core deterministic components:
+- `internal/core/config`
+- `internal/core/schema`
+- `internal/core/normalization`
+- `internal/core/chunking`
+- `internal/core/outputschema`
+- `internal/core/diagnostics`
+- `internal/core/reporting`
+- `internal/core/modulecatalog`
+
+Framework orchestration and contracts:
+- `internal/framework/contracts`
+- `internal/framework/modules`
+- `internal/framework/proposal_generation`
+- `internal/framework/proposals`
+- `internal/framework/runner`
+- `internal/framework/validators`
+- `internal/framework/llm`
+- `internal/framework/responseschema`
+- `internal/framework/structuredoutput`
+- `internal/framework/processreport`
+- `internal/framework/promptcontext`
+- `internal/framework/stagename`
+
+Domain implementations:
+- `internal/modules/*`
+- `internal/validators/*`
+- `internal/prompts`
+
+## Main Execution Path (`audita process`)
+
+High-level flow:
+1. CLI loads effective config and validates CLI requirements.
+2. Run directory is created and invocation/effective config artifacts are written.
+3. Transcript/glossary files are loaded and parsed.
+4. Transcript is normalized and chunked.
+5. `runner.Run` executes configured module instances.
+6. Proposals are validated, applied deterministically, and serialized in selected output schema.
+7. Process report, utilization diagnostics, correction ledger, and retention decisions are finalized.
+
+## Boundary Summary
+
+- `internal/core/*` owns deterministic, reusable logic and persistence-independent rules.
+- `internal/framework/*` owns orchestration contracts and reusable runtime plumbing.
+- `internal/modules/*` owns module-specific proposal behavior and prompt usage.
+- `internal/validators/*` owns validator composition and built-in chain assembly.
+- `internal/prompts` owns embedded prompt assets and metadata registry.
+
+## Where To Add New Code
+
+Add config fields:
+- `internal/core/config`
+
+Add module behavior:
+- one package under `internal/modules/<module_key>`
+- registration/wiring through `internal/framework/modules` and config module list
+
+Add validators:
+- implementation under `internal/validators/<validator_key>`
+- registry/chain wiring in `internal/validators`
+
+Add runtime orchestration behavior:
+- `internal/framework/*` (runner/proposal/validator/LLM plumbing)
+
+Add CLI surface:
+- `internal/cli`
+
+## Related Internal Docs
+
+- [`docs/internal/pipeline.md`](pipeline.md)
+- [`docs/internal/modules.md`](modules.md)
+- [`docs/internal/validators.md`](validators.md)
+- [`docs/internal/llm-runtime.md`](llm-runtime.md)
+- [`docs/internal/diagnostics-reporting.md`](diagnostics-reporting.md)
+- [`docs/internal/prompts.md`](prompts.md)
+- [`docs/internal/output-schemas.md`](output-schemas.md)
diff --git a/docs/internal/pipeline.md b/docs/internal/pipeline.md
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+++ b/docs/internal/pipeline.md
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+# Audita Internal Pipeline
+
+## Scope
+
+This document describes the implemented `audita process` pipeline.
+
+## Inputs
+
+Pipeline inputs are:
+- effective config (`internal/core/config`);
+- transcript JSON (`internal/core/schema`);
+- glossary YAML (`internal/core/schema`).
+
+## Pipeline Phases
+
+1. Input loading and schema validation
+- transcript and glossary files are read and parsed.
+- schema failures stop the run with `transcript_schema` or `glossary_schema`.
+
+2. Normalization
+- canonical transcript segments are normalized by configured gap/duration/token settings.
+- normalization summary artifacts are written.
+
+3. Chunking
+- normalized transcript is chunked with configured max/min tokens and target sections.
+
+4. Module proposal generation
+- runner executes configured module instances in sequence.
+- each module proposes corrections per section.
+- per-section proposal generation can run concurrently.
+
+5. Validator filtering
+- validators run on candidate proposals before apply.
+- deterministic validators run before LLM-backed validators.
+- LLM validator inputs are batched by max prompt token limit.
+
+6. Deterministic apply
+- approved proposals are applied via replacement policy.
+- applied/skipped/rejected outcomes are recorded.
+
+7. Output and reporting
+- final transcript is serialized with selected output schema.
+- report, utilization diagnostics, and correction ledger are written.
+- retention policy is applied to run directory.
+
+## Runner Outputs
+
+`runner.Run` returns:
+- final transcript;
+- per-module results;
+- utilization diagnostics.
+
+CLI/reporting then map this into process report and diagnostics artifacts.
+
+## Failure Behavior
+
+Representative failure phases include:
+- `run_dir_creation`
+- `transcript_read`, `glossary_read`
+- `transcript_schema`, `glossary_schema`
+- `chunking`
+- `runner_setup`, `runner_execution`
+- `output_schema`, `serialization`, `output_write`, `stdout_write`
+
+When diagnostics are available, failure stderr includes diagnostics path.
+
+## Invariants
+
+- module execution order follows configured module sequence;
+- proposal/validator nondeterminism is isolated before deterministic apply;
+- proposal indices are assigned deterministically by section order;
+- output/report artifacts are generated from run results, not speculative state.
+
+## Key Tests
+
+- `internal/framework/runner/runner_test.go`
+- `internal/framework/proposal_generation/*_test.go`
+- `internal/cli/run_test.go`
+- `cmd/audita/main_integration_test.go`
diff --git a/docs/internal/prompts.md b/docs/internal/prompts.md
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+++ b/docs/internal/prompts.md
@@ -0,0 +1,62 @@
+# Audita Prompt Registry
+
+## Scope
+
+This document describes embedded prompt assets, prompt metadata, and rendering behavior.
+
+## Registry Ownership
+
+Prompt registry lives in `internal/prompts` and embeds assets under `internal/prompts/assets/**`.
+
+Registered prompt IDs:
+- `modules.glossary.proposal`
+- `modules.homophones.proposal`
+- `modules.spoken_word.proposal`
+- `modules.grammar.proposal`
+- `validators.spoken_form_plausibility`
+- `validators.meaning_reversal_review`
+- `validators.editorial_review`
+- `validators.grammar_review`
+- `validators.spoken_word_review`
+
+## Metadata Model
+
+Each prompt has metadata:
+- `prompt_id`
+- `prompt_version`
+- `prompt_source`
+- `embedded_path`
+- `sha256`
+
+Current source/version values:
+- `prompt_source = builtin`
+- `prompt_version = v1`
+
+## Rendering
+
+`prompts.RenderUserSystem(promptID, data)` renders system/user templates.
+
+Template behavior:
+- uses Go `text/template`;
+- `missingkey=error` is enabled;
+- output is trimmed.
+
+A shared hardening fragment is embedded once and referenced by prompt templates.
+
+## Prompt Context Inputs
+
+Shared prompt payload helpers:
+- transcript section JSON (`internal/framework/promptcontext/MarshalTranscriptSectionJSON`)
+- transcript description block (`TranscriptDescriptionBlock`)
+
+Modules and LLM validators provide typed data maps to render prompt assets.
+
+## Diagnostics Integration
+
+Prompt metadata is attached to proposal/validator diagnostics request metadata using `Metadata.DiagnosticsMap()`.
+
+## Key Tests
+
+- `internal/prompts/registry_test.go`
+- `internal/framework/promptcontext/*_test.go`
+- module and validator prompt builder tests
diff --git a/docs/internal/validators.md b/docs/internal/validators.md
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+++ b/docs/internal/validators.md
@@ -0,0 +1,72 @@
+# Audita Validators
+
+## Scope
+
+This document describes validator composition, execution order, and decision handling.
+
+## Ownership
+
+Built-in validator keys and chains:
+- `internal/validators`
+
+Shared validator runtime mechanics:
+- `internal/framework/validators`
+
+Execution-class metadata:
+- `internal/validators/metadata`
+
+## Built-In Validator Keys
+
+Deterministic:
+- `proposal_shape`
+- `confidence_threshold`
+- `original_text_presence`
+- `non_empty_corrected_text`
+- `no_effect`
+- `protected_terms`
+
+LLM-backed:
+- `spoken_form_plausibility`
+- `meaning_reversal_review`
+- `editorial_review`
+
+## Built-In Chains
+
+Module chains are defined in `internal/validators/chains.go`.
+Glossary, homophones, spoken_word, and grammar each resolve a fixed ordered chain.
+
+## Runtime Execution
+
+For each module section:
+1. run deterministic validators;
+2. run LLM-backed validators;
+3. record decisions and warnings;
+4. carry only approved proposals forward.
+
+Decision cardinality is enforced: each candidate proposal must receive exactly one decision per validator.
+
+## LLM Validator Batching
+
+LLM validators:
+- build canonical validation request payloads;
+- batch by `validation_max_prompt_tokens`;
+- call structured LLM client using response schema registry.
+
+Oversized single proposals are rejected with `validator_input_too_large`.
+Malformed LLM validator responses are downgraded to warnings and rejected batch decisions.
+
+## Decision and Rejection Reporting
+
+Runner records:
+- `validator_decisions`
+- `validator_rejected`
+- warning records (including malformed response warnings)
+
+Correction ledger classifies deterministic vs LLM validator decisions using canonical metadata classes.
+
+## Key Tests
+
+- `internal/validators/*_test.go`
+- `internal/framework/validators/*_test.go`
+- `internal/framework/processreport/correction_ledger_test.go`
+- `internal/cli/run_test.go`