refactor(bin): move non-spec root files into references/ across four skills

grill-with-docs, improve-codebase-architecture, tdd, and triage kept
non-spec markdown files at their skill root, in violation of
skill-audit's file-structure.md rule (only SKILL.md/README.md belong
at the root; everything else lives in scripts/, references/, assets/
or tests/). A root-level file is invisible to the ADR-0020
dangling-reference gate, which only resolves unqualified
`references/...` pointers.

- Moved and renamed to lowercase-kebab-case under references/:
  grill-with-docs (ADR-FORMAT.md, CONTEXT-FORMAT.md),
  improve-codebase-architecture (DEEPENING.md, INTERFACE-DESIGN.md,
  LANGUAGE.md), tdd (five files, casing was already fine), triage
  (AGENT-BRIEF.md, OUT-OF-SCOPE.md).
- Updated every in-skill link to the new references/ paths, including
  link text that still showed the old uppercase filenames.
- Fixed improve-codebase-architecture/SKILL.md's cross-skill citation
  of grill-with-docs's two files to the sanctioned possessive form
  with the references/ segment included.
- Updated all four skills' README.md file tables to match.
- Regenerated the flat content mirror via
  scripts/sync-plugin-content.sh --all.

Fixes #122.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PDj6F7SPXzh3FtPN78dZ88

plugins/bin/.apm/skills/grill-with-docs/README.md

@@ -33,5 +33,5 @@ Describe the plan or design. Expect questions one at a time, each with a recomme
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | The interview instruction plus the domain-awareness rules: file layout discovery, the five during-session behaviours, and the three-part ADR test |
-| `CONTEXT-FORMAT.md` | Skill-root document, cited when a term is resolved: the structure of a `CONTEXT.md` and how to write a Language entry |
-| `ADR-FORMAT.md` | Skill-root document, cited when an ADR is offered: `docs/adr/` naming, sequential numbering, and the ADR template |
+| `references/context-format.md` | Cited when a term is resolved: the structure of a `CONTEXT.md` and how to write a Language entry |
+| `references/adr-format.md` | Cited when an ADR is offered: `docs/adr/` naming, sequential numbering, and the ADR template |

plugins/bin/.apm/skills/grill-with-docs/SKILL.md

@@ -76,7 +76,7 @@ When the user states how something works, check whether the code agrees. If you
 
 ### Update CONTEXT.md inline
 
-When a term is resolved, update `CONTEXT.md` right there. Don't batch these up — capture them as they happen. Use the format in [CONTEXT-FORMAT.md](./CONTEXT-FORMAT.md).
+When a term is resolved, update `CONTEXT.md` right there. Don't batch these up — capture them as they happen. Use the format in [context-format.md](references/context-format.md).
 
 Don't couple `CONTEXT.md` to implementation details. Only include terms that are meaningful to domain experts.
 
@@ -88,6 +88,6 @@ Only offer to create an ADR when all three are true:
 2. **Surprising without context** — a future reader will wonder "why did they do it this way?"
 3. **The result of a real trade-off** — there were genuine alternatives and you picked one for specific reasons
 
-If any of the three is missing, skip the ADR. Use the format in [ADR-FORMAT.md](./ADR-FORMAT.md).
+If any of the three is missing, skip the ADR. Use the format in [adr-format.md](references/adr-format.md).
 
 </supporting-info>

plugins/bin/.apm/skills/improve-codebase-architecture/README.md

@@ -31,6 +31,6 @@ Point at a codebase or an area of one. Expect a numbered candidate list and a "w
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | Condensed glossary, key principles, and the three-stage process |
-| `LANGUAGE.md` | Skill-root document, cited throughout `SKILL.md`: full definitions of every term, the words each one replaces, and the full principle list |
-| `INTERFACE-DESIGN.md` | Skill-root document, read at stage 3 when the user wants alternative interfaces explored: the parallel sub-agent "Design It Twice" pattern, framing the problem space, and the per-agent design constraints |
-| `DEEPENING.md` | Skill-root document, cited from `INTERFACE-DESIGN.md`: how to deepen a cluster of shallow modules safely, the four dependency categories (in-process, local-substitutable, remote-but-owned, true external), seam discipline, and the replace-don't-layer testing strategy |
+| `references/language.md` | Cited throughout `SKILL.md`: full definitions of every term, the words each one replaces, and the full principle list |
+| `references/interface-design.md` | Read at stage 3 when the user wants alternative interfaces explored: the parallel sub-agent "Design It Twice" pattern, framing the problem space, and the per-agent design constraints |
+| `references/deepening.md` | Cited from `references/interface-design.md`: how to deepen a cluster of shallow modules safely, the four dependency categories (in-process, local-substitutable, remote-but-owned, true external), seam discipline, and the replace-don't-layer testing strategy |

plugins/bin/.apm/skills/improve-codebase-architecture/SKILL.md

@@ -33,7 +33,7 @@ Key principles:
 - **The interface is the test surface.**
 - **One adapter = hypothetical seam. Two adapters = real seam.**
 
-If a term or principle above is ambiguous in the case in front of you, or you need the definitions and the principles the two lists leave out, read `LANGUAGE.md`.
+If a term or principle above is ambiguous in the case in front of you, or you need the definitions and the principles the two lists leave out, read `references/language.md`.
 
 This skill is _informed_ by the project's domain model. The domain language gives names to good seams; ADRs record decisions the skill should not re-litigate.
 
@@ -74,7 +74,7 @@ Once the user picks a candidate, drop into a grilling conversation. Walk the des
 
 Side effects happen inline as decisions crystallize:
 
-- **Naming a deepened module after a concept not in `CONTEXT.md`?** Add the term to `CONTEXT.md` — same discipline as `grill-with-docs`, in the format `grill-with-docs`'s `CONTEXT-FORMAT.md` defines. Create the file lazily if it doesn't exist.
+- **Naming a deepened module after a concept not in `CONTEXT.md`?** Add the term to `CONTEXT.md` — same discipline as `grill-with-docs`, in the format `grill-with-docs`'s `references/context-format.md` defines. Create the file lazily if it doesn't exist.
 - **Sharpening a fuzzy term during the conversation?** Update `CONTEXT.md` right there.
-- **User rejects the candidate with a load-bearing reason?** Offer an ADR, framed as: _"Want me to record this as an ADR so future architecture reviews don't re-suggest it?"_ Only offer when the reason would actually be needed by a future explorer to avoid re-suggesting the same thing — skip ephemeral reasons ("not worth it right now") and self-evident ones. See `grill-with-docs`'s `ADR-FORMAT.md`.
-- **Want to explore alternative interfaces for the deepened module?** Read `INTERFACE-DESIGN.md`.
+- **User rejects the candidate with a load-bearing reason?** Offer an ADR, framed as: _"Want me to record this as an ADR so future architecture reviews don't re-suggest it?"_ Only offer when the reason would actually be needed by a future explorer to avoid re-suggesting the same thing — skip ephemeral reasons ("not worth it right now") and self-evident ones. See `grill-with-docs`'s `references/adr-format.md`.
+- **Want to explore alternative interfaces for the deepened module?** Read `references/interface-design.md`.

plugins/bin/.apm/skills/improve-codebase-architecture/references/deepening.md

@@ -1,6 +1,6 @@
 # Deepening
 
-How to deepen a cluster of shallow modules safely, given its dependencies. Assumes the vocabulary in [LANGUAGE.md](LANGUAGE.md) — **module**, **interface**, **seam**, **adapter**.
+How to deepen a cluster of shallow modules safely, given its dependencies. Assumes the vocabulary in [language.md](language.md) — **module**, **interface**, **seam**, **adapter**.
 
 ## Dependency categories
 

plugins/bin/.apm/skills/improve-codebase-architecture/references/interface-design.md

@@ -2,7 +2,7 @@
 
 When the user wants to explore alternative interfaces for a chosen deepening candidate, use this parallel sub-agent pattern. Based on "Design It Twice" (Ousterhout) — your first idea is unlikely to be the best.
 
-Uses the vocabulary in [LANGUAGE.md](LANGUAGE.md) — **module**, **interface**, **seam**, **adapter**, **leverage**.
+Uses the vocabulary in [language.md](language.md) — **module**, **interface**, **seam**, **adapter**, **leverage**.
 
 ## Process
 
@@ -11,7 +11,7 @@ Uses the vocabulary in [LANGUAGE.md](LANGUAGE.md) — **module**, **interface**,
 Before spawning sub-agents, write a user-facing explanation of the problem space for the chosen candidate:
 
 - The constraints any new interface would need to satisfy
-- The dependencies it would rely on, and which category they fall into (see [DEEPENING.md](DEEPENING.md))
+- The dependencies it would rely on, and which category they fall into (see [deepening.md](deepening.md))
 - A rough illustrative code sketch to ground the constraints — not a proposal, just a way to make the constraints concrete
 
 Show this to the user, then immediately proceed to Step 2. The user reads and thinks while the sub-agents work in parallel.
@@ -20,21 +20,21 @@ Show this to the user, then immediately proceed to Step 2. The user reads and th
 
 Spawn 3+ sub-agents in parallel using the Agent tool. Each must produce a **radically different** interface for the deepened module.
 
-Prompt each sub-agent with a separate technical brief (file paths, coupling details, dependency category from [DEEPENING.md](DEEPENING.md), what sits behind the seam). The brief is independent of the user-facing problem-space explanation in Step 1. Give each agent a different design constraint:
+Prompt each sub-agent with a separate technical brief (file paths, coupling details, dependency category from [deepening.md](deepening.md), what sits behind the seam). The brief is independent of the user-facing problem-space explanation in Step 1. Give each agent a different design constraint:
 
 - Agent 1: "Minimize the interface — aim for 1–3 entry points max. Maximise leverage per entry point."
 - Agent 2: "Maximise flexibility — support many use cases and extension."
 - Agent 3: "Optimise for the most common caller — make the default case trivial."
 - Agent 4 (if applicable): "Design around ports & adapters for cross-seam dependencies."
 
-Include both [LANGUAGE.md](LANGUAGE.md) vocabulary and CONTEXT.md vocabulary in the brief so each sub-agent names things consistently with the architecture language and the project's domain language.
+Include both [language.md](language.md) vocabulary and CONTEXT.md vocabulary in the brief so each sub-agent names things consistently with the architecture language and the project's domain language.
 
 Each sub-agent outputs:
 
 1. Interface (types, methods, params — plus invariants, ordering, error modes)
 2. Usage example showing how callers use it
 3. What the implementation hides behind the seam
-4. Dependency strategy and adapters (see [DEEPENING.md](DEEPENING.md))
+4. Dependency strategy and adapters (see [deepening.md](deepening.md))
 5. Trade-offs — where leverage is high, where it's thin
 
 ### 3. Present and compare

plugins/bin/.apm/skills/tdd/README.md

@@ -25,8 +25,8 @@ Describe the feature or bug. Expect the skill to ask what the public interface s
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | Philosophy, the horizontal-slicing anti-pattern, the four-stage workflow, and the per-cycle checklist |
-| `tests.md` | Skill-root document, cited from Philosophy: worked good and bad test examples |
-| `mocking.md` | Skill-root document, cited from Philosophy: mock at system boundaries only, and what not to mock |
-| `deep-modules.md` | Skill-root document, cited from stage 1: what a deep module is (small interface, large implementation) and why it is the design to aim for |
-| `interface-design.md` | Skill-root document, cited from stage 1: designing interfaces for testability, starting with accepting dependencies rather than creating them |
-| `refactoring.md` | Skill-root document, cited from stage 4: the refactor-candidate checklist — duplication, long methods, shallow modules, feature envy, primitive obsession |
+| `references/tests.md` | Cited from Philosophy: worked good and bad test examples |
+| `references/mocking.md` | Cited from Philosophy: mock at system boundaries only, and what not to mock |
+| `references/deep-modules.md` | Cited from stage 1: what a deep module is (small interface, large implementation) and why it is the design to aim for |
+| `references/interface-design.md` | Cited from stage 1: designing interfaces for testability, starting with accepting dependencies rather than creating them |
+| `references/refactoring.md` | Cited from stage 4: the refactor-candidate checklist — duplication, long methods, shallow modules, feature envy, primitive obsession |

plugins/bin/.apm/skills/tdd/SKILL.md

@@ -18,7 +18,7 @@ metadata:
 
 **Bad tests** are coupled to implementation. They mock internal collaborators, test private methods, or verify through external means (like querying a database directly instead of using the interface). The warning sign: your test breaks when you refactor, but behavior hasn't changed. If you rename an internal function and tests fail, those tests were testing implementation, not behavior.
 
-If you need worked examples of the difference — a behaviour-level test beside the implementation-coupled version of the same check — read `tests.md`. If a test needs a collaborator faked, read `mocking.md` before reaching for a mock.
+If you need worked examples of the difference — a behaviour-level test beside the implementation-coupled version of the same check — read `references/tests.md`. If a test needs a collaborator faked, read `references/mocking.md` before reaching for a mock.
 
 ## Anti-Pattern: Horizontal Slices
 
@@ -55,8 +55,8 @@ Before writing any code:
 
 - [ ] Confirm with user what interface changes are needed
 - [ ] Confirm with user which behaviors to test (prioritize)
-- [ ] Identify opportunities for [deep modules](deep-modules.md) (small interface, deep implementation)
-- [ ] Design interfaces for [testability](interface-design.md)
+- [ ] Identify opportunities for [deep modules](references/deep-modules.md) (small interface, deep implementation)
+- [ ] Design interfaces for [testability](references/interface-design.md)
 - [ ] List the behaviors to test (not implementation steps)
 - [ ] Get user approval on the plan
 
@@ -93,7 +93,7 @@ Rules:
 
 ### 4. Refactor
 
-After all tests pass, look for [refactor candidates](refactoring.md):
+After all tests pass, look for [refactor candidates](references/refactoring.md):
 
 - [ ] Extract duplication
 - [ ] Deepen modules (move complexity behind simple interfaces)

plugins/bin/.apm/skills/triage/README.md

@@ -31,5 +31,5 @@ Then describe what you want in natural language — "show me anything that needs
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | The roles and state machine, the three invocation modes, the needs-info template, and how to resume a prior session |
-| `AGENT-BRIEF.md` | Skill-root document, cited when an issue moves to `ready-for-agent` (and reused for `ready-for-human`): how to write a brief that stays durable for weeks while the codebase moves under it — describe interfaces and behavioural contracts, not line numbers |
-| `OUT-OF-SCOPE.md` | Skill-root document, cited when an enhancement is closed `wontfix` and when checking for prior rejections: how the `.out-of-scope/` knowledge base is laid out and what it is for — institutional memory, and deduplication against re-litigated requests |
+| `references/agent-brief.md` | Cited when an issue moves to `ready-for-agent` (and reused for `ready-for-human`): how to write a brief that stays durable for weeks while the codebase moves under it — describe interfaces and behavioural contracts, not line numbers |
+| `references/out-of-scope.md` | Cited when an enhancement is closed `wontfix` and when checking for prior rejections: how the `.out-of-scope/` knowledge base is laid out and what it is for — institutional memory, and deduplication against re-litigated requests |

plugins/bin/.apm/skills/triage/SKILL.md

@@ -20,8 +20,8 @@ Every comment or issue posted to the issue tracker during triage **must** start
 
 ## Reference docs
 
-- [AGENT-BRIEF.md](AGENT-BRIEF.md) — how to write durable agent briefs
-- [OUT-OF-SCOPE.md](OUT-OF-SCOPE.md) — how the `.out-of-scope/` knowledge base works
+- [agent-brief.md](references/agent-brief.md) — how to write durable agent briefs
+- [out-of-scope.md](references/out-of-scope.md) — how the `.out-of-scope/` knowledge base works
 
 ## Roles
 
@@ -74,11 +74,11 @@ Show counts and a one-line summary per issue. Let the maintainer pick.
 4. **Grill (if needed).** If the issue needs fleshing out, run a `/grill-with-docs` session.
 
 5. **Apply the outcome:**
-   - `ready-for-agent` — post an agent brief comment ([AGENT-BRIEF.md](AGENT-BRIEF.md)).
+   - `ready-for-agent` — post an agent brief comment ([agent-brief.md](references/agent-brief.md)).
    - `ready-for-human` — same structure as an agent brief, but note why it can't be delegated (judgment calls, external access, design decisions, manual testing).
    - `needs-info` — post triage notes (template below).
    - `wontfix` (bug) — polite explanation, then close.
-   - `wontfix` (enhancement) — write to `.out-of-scope/`, link to it from a comment, then close ([OUT-OF-SCOPE.md](OUT-OF-SCOPE.md)).
+   - `wontfix` (enhancement) — write to `.out-of-scope/`, link to it from a comment, then close ([out-of-scope.md](references/out-of-scope.md)).
    - `needs-triage` — apply the role. Optional comment if there's partial progress.
 
 ## Quick state override

plugins/bin/skills/grill-with-docs/README.md

@@ -33,5 +33,5 @@ Describe the plan or design. Expect questions one at a time, each with a recomme
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | The interview instruction plus the domain-awareness rules: file layout discovery, the five during-session behaviours, and the three-part ADR test |
-| `CONTEXT-FORMAT.md` | Skill-root document, cited when a term is resolved: the structure of a `CONTEXT.md` and how to write a Language entry |
-| `ADR-FORMAT.md` | Skill-root document, cited when an ADR is offered: `docs/adr/` naming, sequential numbering, and the ADR template |
+| `references/context-format.md` | Cited when a term is resolved: the structure of a `CONTEXT.md` and how to write a Language entry |
+| `references/adr-format.md` | Cited when an ADR is offered: `docs/adr/` naming, sequential numbering, and the ADR template |

plugins/bin/skills/grill-with-docs/SKILL.md

@@ -76,7 +76,7 @@ When the user states how something works, check whether the code agrees. If you
 
 ### Update CONTEXT.md inline
 
-When a term is resolved, update `CONTEXT.md` right there. Don't batch these up — capture them as they happen. Use the format in [CONTEXT-FORMAT.md](./CONTEXT-FORMAT.md).
+When a term is resolved, update `CONTEXT.md` right there. Don't batch these up — capture them as they happen. Use the format in [context-format.md](references/context-format.md).
 
 Don't couple `CONTEXT.md` to implementation details. Only include terms that are meaningful to domain experts.
 
@@ -88,6 +88,6 @@ Only offer to create an ADR when all three are true:
 2. **Surprising without context** — a future reader will wonder "why did they do it this way?"
 3. **The result of a real trade-off** — there were genuine alternatives and you picked one for specific reasons
 
-If any of the three is missing, skip the ADR. Use the format in [ADR-FORMAT.md](./ADR-FORMAT.md).
+If any of the three is missing, skip the ADR. Use the format in [adr-format.md](references/adr-format.md).
 
 </supporting-info>

plugins/bin/skills/improve-codebase-architecture/README.md

@@ -31,6 +31,6 @@ Point at a codebase or an area of one. Expect a numbered candidate list and a "w
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | Condensed glossary, key principles, and the three-stage process |
-| `LANGUAGE.md` | Skill-root document, cited throughout `SKILL.md`: full definitions of every term, the words each one replaces, and the full principle list |
-| `INTERFACE-DESIGN.md` | Skill-root document, read at stage 3 when the user wants alternative interfaces explored: the parallel sub-agent "Design It Twice" pattern, framing the problem space, and the per-agent design constraints |
-| `DEEPENING.md` | Skill-root document, cited from `INTERFACE-DESIGN.md`: how to deepen a cluster of shallow modules safely, the four dependency categories (in-process, local-substitutable, remote-but-owned, true external), seam discipline, and the replace-don't-layer testing strategy |
+| `references/language.md` | Cited throughout `SKILL.md`: full definitions of every term, the words each one replaces, and the full principle list |
+| `references/interface-design.md` | Read at stage 3 when the user wants alternative interfaces explored: the parallel sub-agent "Design It Twice" pattern, framing the problem space, and the per-agent design constraints |
+| `references/deepening.md` | Cited from `references/interface-design.md`: how to deepen a cluster of shallow modules safely, the four dependency categories (in-process, local-substitutable, remote-but-owned, true external), seam discipline, and the replace-don't-layer testing strategy |

plugins/bin/skills/improve-codebase-architecture/SKILL.md

@@ -33,7 +33,7 @@ Key principles:
 - **The interface is the test surface.**
 - **One adapter = hypothetical seam. Two adapters = real seam.**
 
-If a term or principle above is ambiguous in the case in front of you, or you need the definitions and the principles the two lists leave out, read `LANGUAGE.md`.
+If a term or principle above is ambiguous in the case in front of you, or you need the definitions and the principles the two lists leave out, read `references/language.md`.
 
 This skill is _informed_ by the project's domain model. The domain language gives names to good seams; ADRs record decisions the skill should not re-litigate.
 
@@ -74,7 +74,7 @@ Once the user picks a candidate, drop into a grilling conversation. Walk the des
 
 Side effects happen inline as decisions crystallize:
 
-- **Naming a deepened module after a concept not in `CONTEXT.md`?** Add the term to `CONTEXT.md` — same discipline as `grill-with-docs`, in the format `grill-with-docs`'s `CONTEXT-FORMAT.md` defines. Create the file lazily if it doesn't exist.
+- **Naming a deepened module after a concept not in `CONTEXT.md`?** Add the term to `CONTEXT.md` — same discipline as `grill-with-docs`, in the format `grill-with-docs`'s `references/context-format.md` defines. Create the file lazily if it doesn't exist.
 - **Sharpening a fuzzy term during the conversation?** Update `CONTEXT.md` right there.
-- **User rejects the candidate with a load-bearing reason?** Offer an ADR, framed as: _"Want me to record this as an ADR so future architecture reviews don't re-suggest it?"_ Only offer when the reason would actually be needed by a future explorer to avoid re-suggesting the same thing — skip ephemeral reasons ("not worth it right now") and self-evident ones. See `grill-with-docs`'s `ADR-FORMAT.md`.
-- **Want to explore alternative interfaces for the deepened module?** Read `INTERFACE-DESIGN.md`.
+- **User rejects the candidate with a load-bearing reason?** Offer an ADR, framed as: _"Want me to record this as an ADR so future architecture reviews don't re-suggest it?"_ Only offer when the reason would actually be needed by a future explorer to avoid re-suggesting the same thing — skip ephemeral reasons ("not worth it right now") and self-evident ones. See `grill-with-docs`'s `references/adr-format.md`.
+- **Want to explore alternative interfaces for the deepened module?** Read `references/interface-design.md`.

plugins/bin/skills/improve-codebase-architecture/references/deepening.md

@@ -1,6 +1,6 @@
 # Deepening
 
-How to deepen a cluster of shallow modules safely, given its dependencies. Assumes the vocabulary in [LANGUAGE.md](LANGUAGE.md) — **module**, **interface**, **seam**, **adapter**.
+How to deepen a cluster of shallow modules safely, given its dependencies. Assumes the vocabulary in [language.md](language.md) — **module**, **interface**, **seam**, **adapter**.
 
 ## Dependency categories
 

plugins/bin/skills/improve-codebase-architecture/references/interface-design.md

@@ -2,7 +2,7 @@
 
 When the user wants to explore alternative interfaces for a chosen deepening candidate, use this parallel sub-agent pattern. Based on "Design It Twice" (Ousterhout) — your first idea is unlikely to be the best.
 
-Uses the vocabulary in [LANGUAGE.md](LANGUAGE.md) — **module**, **interface**, **seam**, **adapter**, **leverage**.
+Uses the vocabulary in [language.md](language.md) — **module**, **interface**, **seam**, **adapter**, **leverage**.
 
 ## Process
 
@@ -11,7 +11,7 @@ Uses the vocabulary in [LANGUAGE.md](LANGUAGE.md) — **module**, **interface**,
 Before spawning sub-agents, write a user-facing explanation of the problem space for the chosen candidate:
 
 - The constraints any new interface would need to satisfy
-- The dependencies it would rely on, and which category they fall into (see [DEEPENING.md](DEEPENING.md))
+- The dependencies it would rely on, and which category they fall into (see [deepening.md](deepening.md))
 - A rough illustrative code sketch to ground the constraints — not a proposal, just a way to make the constraints concrete
 
 Show this to the user, then immediately proceed to Step 2. The user reads and thinks while the sub-agents work in parallel.
@@ -20,21 +20,21 @@ Show this to the user, then immediately proceed to Step 2. The user reads and th
 
 Spawn 3+ sub-agents in parallel using the Agent tool. Each must produce a **radically different** interface for the deepened module.
 
-Prompt each sub-agent with a separate technical brief (file paths, coupling details, dependency category from [DEEPENING.md](DEEPENING.md), what sits behind the seam). The brief is independent of the user-facing problem-space explanation in Step 1. Give each agent a different design constraint:
+Prompt each sub-agent with a separate technical brief (file paths, coupling details, dependency category from [deepening.md](deepening.md), what sits behind the seam). The brief is independent of the user-facing problem-space explanation in Step 1. Give each agent a different design constraint:
 
 - Agent 1: "Minimize the interface — aim for 1–3 entry points max. Maximise leverage per entry point."
 - Agent 2: "Maximise flexibility — support many use cases and extension."
 - Agent 3: "Optimise for the most common caller — make the default case trivial."
 - Agent 4 (if applicable): "Design around ports & adapters for cross-seam dependencies."
 
-Include both [LANGUAGE.md](LANGUAGE.md) vocabulary and CONTEXT.md vocabulary in the brief so each sub-agent names things consistently with the architecture language and the project's domain language.
+Include both [language.md](language.md) vocabulary and CONTEXT.md vocabulary in the brief so each sub-agent names things consistently with the architecture language and the project's domain language.
 
 Each sub-agent outputs:
 
 1. Interface (types, methods, params — plus invariants, ordering, error modes)
 2. Usage example showing how callers use it
 3. What the implementation hides behind the seam
-4. Dependency strategy and adapters (see [DEEPENING.md](DEEPENING.md))
+4. Dependency strategy and adapters (see [deepening.md](deepening.md))
 5. Trade-offs — where leverage is high, where it's thin
 
 ### 3. Present and compare

plugins/bin/skills/tdd/README.md

@@ -25,8 +25,8 @@ Describe the feature or bug. Expect the skill to ask what the public interface s
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | Philosophy, the horizontal-slicing anti-pattern, the four-stage workflow, and the per-cycle checklist |
-| `tests.md` | Skill-root document, cited from Philosophy: worked good and bad test examples |
-| `mocking.md` | Skill-root document, cited from Philosophy: mock at system boundaries only, and what not to mock |
-| `deep-modules.md` | Skill-root document, cited from stage 1: what a deep module is (small interface, large implementation) and why it is the design to aim for |
-| `interface-design.md` | Skill-root document, cited from stage 1: designing interfaces for testability, starting with accepting dependencies rather than creating them |
-| `refactoring.md` | Skill-root document, cited from stage 4: the refactor-candidate checklist — duplication, long methods, shallow modules, feature envy, primitive obsession |
+| `references/tests.md` | Cited from Philosophy: worked good and bad test examples |
+| `references/mocking.md` | Cited from Philosophy: mock at system boundaries only, and what not to mock |
+| `references/deep-modules.md` | Cited from stage 1: what a deep module is (small interface, large implementation) and why it is the design to aim for |
+| `references/interface-design.md` | Cited from stage 1: designing interfaces for testability, starting with accepting dependencies rather than creating them |
+| `references/refactoring.md` | Cited from stage 4: the refactor-candidate checklist — duplication, long methods, shallow modules, feature envy, primitive obsession |

plugins/bin/skills/tdd/SKILL.md

@@ -18,7 +18,7 @@ metadata:
 
 **Bad tests** are coupled to implementation. They mock internal collaborators, test private methods, or verify through external means (like querying a database directly instead of using the interface). The warning sign: your test breaks when you refactor, but behavior hasn't changed. If you rename an internal function and tests fail, those tests were testing implementation, not behavior.
 
-If you need worked examples of the difference — a behaviour-level test beside the implementation-coupled version of the same check — read `tests.md`. If a test needs a collaborator faked, read `mocking.md` before reaching for a mock.
+If you need worked examples of the difference — a behaviour-level test beside the implementation-coupled version of the same check — read `references/tests.md`. If a test needs a collaborator faked, read `references/mocking.md` before reaching for a mock.
 
 ## Anti-Pattern: Horizontal Slices
 
@@ -55,8 +55,8 @@ Before writing any code:
 
 - [ ] Confirm with user what interface changes are needed
 - [ ] Confirm with user which behaviors to test (prioritize)
-- [ ] Identify opportunities for [deep modules](deep-modules.md) (small interface, deep implementation)
-- [ ] Design interfaces for [testability](interface-design.md)
+- [ ] Identify opportunities for [deep modules](references/deep-modules.md) (small interface, deep implementation)
+- [ ] Design interfaces for [testability](references/interface-design.md)
 - [ ] List the behaviors to test (not implementation steps)
 - [ ] Get user approval on the plan
 
@@ -93,7 +93,7 @@ Rules:
 
 ### 4. Refactor
 
-After all tests pass, look for [refactor candidates](refactoring.md):
+After all tests pass, look for [refactor candidates](references/refactoring.md):
 
 - [ ] Extract duplication
 - [ ] Deepen modules (move complexity behind simple interfaces)

plugins/bin/skills/triage/README.md

@@ -31,5 +31,5 @@ Then describe what you want in natural language — "show me anything that needs
 | File | Purpose |
 |------|---------|
 | `SKILL.md` | The roles and state machine, the three invocation modes, the needs-info template, and how to resume a prior session |
-| `AGENT-BRIEF.md` | Skill-root document, cited when an issue moves to `ready-for-agent` (and reused for `ready-for-human`): how to write a brief that stays durable for weeks while the codebase moves under it — describe interfaces and behavioural contracts, not line numbers |
-| `OUT-OF-SCOPE.md` | Skill-root document, cited when an enhancement is closed `wontfix` and when checking for prior rejections: how the `.out-of-scope/` knowledge base is laid out and what it is for — institutional memory, and deduplication against re-litigated requests |
+| `references/agent-brief.md` | Cited when an issue moves to `ready-for-agent` (and reused for `ready-for-human`): how to write a brief that stays durable for weeks while the codebase moves under it — describe interfaces and behavioural contracts, not line numbers |
+| `references/out-of-scope.md` | Cited when an enhancement is closed `wontfix` and when checking for prior rejections: how the `.out-of-scope/` knowledge base is laid out and what it is for — institutional memory, and deduplication against re-litigated requests |

plugins/bin/skills/triage/SKILL.md

@@ -20,8 +20,8 @@ Every comment or issue posted to the issue tracker during triage **must** start
 
 ## Reference docs
 
-- [AGENT-BRIEF.md](AGENT-BRIEF.md) — how to write durable agent briefs
-- [OUT-OF-SCOPE.md](OUT-OF-SCOPE.md) — how the `.out-of-scope/` knowledge base works
+- [agent-brief.md](references/agent-brief.md) — how to write durable agent briefs
+- [out-of-scope.md](references/out-of-scope.md) — how the `.out-of-scope/` knowledge base works
 
 ## Roles
 
@@ -74,11 +74,11 @@ Show counts and a one-line summary per issue. Let the maintainer pick.
 4. **Grill (if needed).** If the issue needs fleshing out, run a `/grill-with-docs` session.
 
 5. **Apply the outcome:**
-   - `ready-for-agent` — post an agent brief comment ([AGENT-BRIEF.md](AGENT-BRIEF.md)).
+   - `ready-for-agent` — post an agent brief comment ([agent-brief.md](references/agent-brief.md)).
    - `ready-for-human` — same structure as an agent brief, but note why it can't be delegated (judgment calls, external access, design decisions, manual testing).
    - `needs-info` — post triage notes (template below).
    - `wontfix` (bug) — polite explanation, then close.
-   - `wontfix` (enhancement) — write to `.out-of-scope/`, link to it from a comment, then close ([OUT-OF-SCOPE.md](OUT-OF-SCOPE.md)).
+   - `wontfix` (enhancement) — write to `.out-of-scope/`, link to it from a comment, then close ([out-of-scope.md](references/out-of-scope.md)).
    - `needs-triage` — apply the role. Optional comment if there's partial progress.
 
 ## Quick state override