diff --git a/.agents/skills/lxmf-update/SKILL.md b/.agents/skills/lxmf-update/SKILL.md
deleted file mode 100644
index 20396c3..0000000
--- a/.agents/skills/lxmf-update/SKILL.md
+++ /dev/null
@@ -1,40 +0,0 @@
----
-name: lxmf-update
-description: Check upstream LXMF and RNS implementations for changes affecting the LXMF specification, run local verifier tools, and propose spec updates with citations.
----
-
-# LXMF update skill
-
-Use this skill when asked to check whether the LXMF specification is current with upstream LXMF or RNS.
-
-## Sources of truth
-
-Prefer, in order:
-
-1. Upstream LXMF source code at a pinned release or commit.
-2. Upstream RNS source code where LXMF behavior depends on Reticulum behavior.
-3. Reproducible local traces and test vectors.
-4. Upstream prose documentation, only when consistent with source behavior.
-
-## Required workflow
-
-1. Determine the currently pinned upstream LXMF and RNS versions from `SOURCES.md`.
-2. Check whether newer upstream releases or commits exist.
-3. Identify changed files relevant to:
-   - message packing
-   - fields and flags
-   - destination handling
-   - identity/signature behavior
-   - encryption behavior
-   - propagation
-   - delivery semantics
-   - storage format if externally observable
-4. Run the verifier tools in `tools/`.
-5. Compare observed behavior against `SPEC.md`.
-6. Produce a report with:
-   - changed upstream files
-   - affected specification sections
-   - proposed edits
-   - test-vector impact
-   - unresolved ambiguities
-7. Do not modify `SPEC.md` unless explicitly asked.
diff --git a/AGENTS.md b/AGENTS.md
deleted file mode 100644
index d4c9224..0000000
--- a/AGENTS.md
+++ /dev/null
@@ -1,16 +0,0 @@
-# AGENTS.md
-
-## Repository purpose
-
-This repository attempts to define an implementation-derived specification for LXMF.
-
-Do not treat upstream prose documentation as authoritative when it conflicts with observed source behavior. Prefer source code, test vectors, and reproducible traces.
-
-## Required discipline
-
-- Distinguish normative behavior from observed implementation behavior.
-- Cite exact upstream files, functions, classes, constants, and version tags.
-- Do not invent protocol rules.
-- When behavior is unclear, mark it as "undetermined" rather than guessing.
-- Prefer Perl tools for extraction, comparison, and report generation.
-- Keep generated examples reproducible from scripts under tools/.
diff --git a/ChatGPT_1.md b/ChatGPT_1.md
deleted file mode 100644
index c40e197..0000000
--- a/ChatGPT_1.md
+++ /dev/null
@@ -1,174 +0,0 @@
-Yes. For Codex, the closest equivalents are:
-
-1. **`AGENTS.md`** for persistent project-wide instructions.
-2. **Codex Skills using `SKILL.md`** for reusable workflows, very similar in spirit to the Claude Code file you linked.
-3. Optionally **`PLANS.md` / ExecPlan-style documents** for long-running specification work.
-
-The important correction is that Codex does now support **Skills with `SKILL.md`**, not just `AGENTS.md`. OpenAI’s Codex documentation says a skill is a directory containing a required `SKILL.md` file, with optional `scripts/`, `references/`, `assets/`, and related support files. Codex initially sees the skill name, description, and path, then loads the full `SKILL.md` only when it decides that skill applies. ([OpenAI Developers][1])
-
-So, yes: you can do essentially the same thing that `thatSFguy` is doing, but I would structure it slightly differently for LXMF.
-
-## Recommended Codex layout
-
-For an LXMF specification repository, I would use something like:
-
-```text
-lxmf-specification/
-├── AGENTS.md
-├── SPEC.md
-├── NOTES.md
-├── SOURCES.md
-├── tools/
-│   ├── extract_lxmf_constants.pl
-│   ├── compare_upstream_lxmf.pl
-│   ├── verify_examples.pl
-│   └── make_test_vectors.pl
-├── examples/
-│   ├── lxmf_message_minimal.hex
-│   ├── lxmf_message_signed.hex
-│   └── lxmf_propagation_example.hex
-├── references/
-│   ├── lxmf_source_map.md
-│   ├── rns_dependency_map.md
-│   └── terminology.md
-└── .agents/
-    └── skills/
-        └── lxmf-update/
-            └── SKILL.md
-```
-
-## Role of each file
-
-### `AGENTS.md`
-
-Use this for always-on repository rules. Codex reads `AGENTS.md` before doing work, and the docs describe it as the mechanism for project-specific persistent guidance. ([OpenAI Developers][2])
-
-Example use:
-
-```markdown
-# AGENTS.md
-
-## Repository purpose
-
-This repository attempts to define an implementation-derived specification for LXMF.
-
-Do not treat upstream prose documentation as authoritative when it conflicts with observed source behavior. Prefer source code, test vectors, and reproducible traces.
-
-## Required discipline
-
-- Distinguish normative behavior from observed implementation behavior.
-- Cite exact upstream files, functions, classes, constants, and version tags.
-- Do not invent protocol rules.
-- When behavior is unclear, mark it as "undetermined" rather than guessing.
-- Prefer Perl tools for extraction, comparison, and report generation.
-- Keep generated examples reproducible from scripts under tools/.
-```
-
-### `.agents/skills/lxmf-update/SKILL.md`
-
-Use this for the repeatable workflow: “check upstream LXMF/RNS, compare against our spec, update citations, run verifiers, propose diffs.”
-
-That is the closest Codex analog to the Claude Code `rns-update/SKILL.md` you found.
-
-A minimal Codex skill might look like:
-
-```markdown
----
-name: lxmf-update
-description: Check upstream LXMF and RNS implementations for changes affecting the LXMF specification, run local verifier tools, and propose spec updates with citations.
----
-
-# LXMF update skill
-
-Use this skill when asked to check whether the LXMF specification is current with upstream LXMF or RNS.
-
-## Sources of truth
-
-Prefer, in order:
-
-1. Upstream LXMF source code at a pinned release or commit.
-2. Upstream RNS source code where LXMF behavior depends on Reticulum behavior.
-3. Reproducible local traces and test vectors.
-4. Upstream prose documentation, only when consistent with source behavior.
-
-## Required workflow
-
-1. Determine the currently pinned upstream LXMF and RNS versions from `SOURCES.md`.
-2. Check whether newer upstream releases or commits exist.
-3. Identify changed files relevant to:
-   - message packing
-   - fields and flags
-   - destination handling
-   - identity/signature behavior
-   - encryption behavior
-   - propagation
-   - delivery semantics
-   - storage format if externally observable
-4. Run the verifier tools in `tools/`.
-5. Compare observed behavior against `SPEC.md`.
-6. Produce a report with:
-   - changed upstream files
-   - affected specification sections
-   - proposed edits
-   - test-vector impact
-   - unresolved ambiguities
-7. Do not modify `SPEC.md` unless explicitly asked.
-```
-
-Codex supports skills in the CLI, IDE extension, and Codex app, and the documented repository skill location is `.agents/skills` under the current directory or repository root. ([OpenAI Developers][1])
-
-### `PLANS.md`
-
-For your use case, I would also add a planning document, because “derive a protocol specification from implementation” is not a one-shot coding task. OpenAI’s Codex cookbook describes using `PLANS.md` / ExecPlans for long-running, multi-stage work, with `AGENTS.md` telling Codex when to use it. ([OpenAI Developers][3])
-
-For LXMF, `PLANS.md` could define the required sections of each investigation:
-
-```markdown
-# LXMF Specification Investigation Plan
-
-Each investigation must include:
-
-1. Question being answered.
-2. Upstream files inspected.
-3. Exact version or commit.
-4. Relevant classes/functions/constants.
-5. Observed behavior.
-6. Whether behavior is normative, inferred, or unresolved.
-7. Test vectors needed.
-8. SPEC.md sections affected.
-9. Open questions.
-```
-
-## My recommendation
-
-For your goal, I would not start by asking Codex to “write the LXMF specification.” That is too broad and likely to produce confident prose ahead of evidence.
-
-I would instead give Codex narrow tasks such as:
-
-```text
-Using the lxmf-update skill, inspect upstream LXMF and determine the exact serialized structure of an LXMessage. Do not edit SPEC.md. Produce a report listing every field, its source-code origin, and whether its behavior is confirmed by a test vector.
-```
-
-Then:
-
-```text
-Create Perl tooling under tools/ that extracts or verifies the LXMF message packing behavior described in the report. Generate at least one reproducible test vector.
-```
-
-Then:
-
-```text
-Update SPEC.md section "LXMessage Wire Format" using only behavior confirmed by source inspection or verifier output. Mark all unverified behavior as unresolved.
-```
-
-## Bottom line
-
-Yes, you can accomplish the same kind of workflow with Codex. In fact, Codex gives you both mechanisms:
-
-`AGENTS.md` for standing repo rules, and `SKILL.md` under `.agents/skills/...` for a reusable “LXMF update / spec maintenance” workflow. OpenAI’s Codex docs explicitly describe customization as a combination of `AGENTS.md`, skills, MCP, memories, and subagents; for your use case, `AGENTS.md` plus a `SKILL.md` skill is the right starting point. ([OpenAI Developers][4])
-
-[1]: https://developers.openai.com/codex/skills "Agent Skills – Codex | OpenAI Developers"
-[2]: https://developers.openai.com/codex/guides/agents-md "Custom instructions with AGENTS.md – Codex | OpenAI Developers"
-[3]: https://developers.openai.com/cookbook/articles/codex_exec_plans "Using PLANS.md for multi-hour problem solving"
-[4]: https://developers.openai.com/codex/concepts/customization "Customization – Codex | OpenAI Developers"
-
diff --git a/Codex_1.md b/Codex_1.md
deleted file mode 100644
index 049676a..0000000
--- a/Codex_1.md
+++ /dev/null
@@ -1,8 +0,0 @@
-This directory: /usr/local/src/reticulum/LXMF
-contains my GitHub fork (https://github.com/jlpoolen/LXMF) of Mark Qvist's: https://github.com/markqvist/LXMF which, incidentally, is a public mirror of some git server served up through Reticulum -- the source is not provided.
-
-I created an empty project in my Forgejo server: LXMF-specification at  https://salemdata.net/repo/jlpoole/LMXF-specification
-and I added my Forgejo instance as a remote repository identified by "forgejo".
-
-I added some files based on a ChatGPT chat, see ChatGPT_1.md.
-So, for your first task:  Using the lxmf-update skill, inspect upstream LXMF and determine the exact serialized structure of an LXMessage. Do not edit SPEC.md. Produce a report listing every field, its source-code origin, and whether its behavior is confirmed by a test vector.
diff --git a/Codex_Response_1.md b/Codex_Response_1.md
deleted file mode 100644
index 8b45de7..0000000
--- a/Codex_Response_1.md
+++ /dev/null
@@ -1,83 +0,0 @@
-No, I don’t need `SPEC.md` or `SOURCES.md` for this first report. I used the checked-out LXMF source directly. I did not edit `SPEC.md` or any other file.
-
-**LXMessage Serialized Structure**
-
-Source inspected: LXMF commit `fab12ad9bf9f997797034950f289fe41a79dcf5a`
-
-Core `lxmf_bytes` layout:
-
-```text
-destination_hash || source_hash || signature || msgpack_payload
-```
-
-Where `msgpack_payload` is:
-
-```text
-[
-  timestamp,
-  title,
-  content,
-  fields,
-  optional_stamp
-]
-```
-
-The fifth element is only present when a normal message stamp is generated and appended.
-
-| Field | Serialized position | Type / size | Source origin | Test vector confirmed |
-|---|---:|---|---|---|
-| `destination_hash` | bytes `0..15` | 16 bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:383), length from [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:40) and RNS 128-bit truncated hashes in [Reticulum.py](/usr/local/src/reticulum/Reticulum/RNS/Reticulum.py:146) | No |
-| `source_hash` | bytes `16..31` | 16 bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:384) | No |
-| `signature` | bytes `32..95` | 64 bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:378), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:385); RNS signature length from [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:59) and [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:80) | No |
-| `msgpack_payload` | bytes `96..end` | msgpack list | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362), packed at [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:381) | No |
-| `timestamp` | payload index `0` | Python float, normally msgpack float64 on this RNS umsgpack | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:357), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362); float64 behavior from [umsgpack.py](/usr/local/src/reticulum/Reticulum/RNS/vendor/umsgpack.py:1177) and [umsgpack.py](/usr/local/src/reticulum/Reticulum/RNS/vendor/umsgpack.py:325) | No |
-| `title` | payload index `1` | bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:130), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:193), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362) | No |
-| `content` | payload index `2` | bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:135), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:202), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362) | No |
-| `fields` | payload index `3` | dict, default `{}` | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:215), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362) | No |
-| `stamp` | payload index `4`, optional | bytes, only if generated | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:371), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:373); extracted on unpack at [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:754) | No |
-
-**Hash And Signature**
-
-`message_id` / `hash` is:
-
-```text
-SHA256(destination_hash || source_hash || msgpack([timestamp, title, content, fields]))
-```
-
-Source: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:364), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:368), RNS SHA-256 at [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:238).
-
-The signature is over:
-
-```text
-destination_hash || source_hash || msgpack([timestamp, title, content, fields]) || message_id
-```
-
-Source: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:375), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:378), RNS signing at [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:767).
-
-Important: the optional normal `stamp` is excluded from both `message_id` and signature. Unpack removes payload index `4` before recomputing hash/signature material: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:754).
-
-**Outer Representations**
-
-Direct/link/resource delivery uses full `self.packed` unchanged: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:636), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:654).
-
-Opportunistic packet delivery omits the destination hash from the packet payload because the RNS packet destination already implies it:
-
-```text
-source_hash || signature || msgpack_payload
-```
-
-Source: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:633).
-
-Propagated and paper messages wrap/encrypt everything after the destination hash:
-
-```text
-destination_hash || encrypted(source_hash || signature || msgpack_payload)
-```
-
-Source: propagated [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:429), paper [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:449). Propagation transit additionally msgpacks `[time.time(), [lxmf_data]]`: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:436).
-
-**Notes**
-
-The README is not authoritative here: it describes payload order as timestamp, content, title, fields, but current code serializes timestamp, title, content, fields.
-
-No test vector confirmation exists in this checkout. There is no `tools/` directory and no tracked `SPEC.md` or `SOURCES.md`, so every “Test vector confirmed” entry above is marked `No`.
diff --git a/Codex_Response_2.md b/Codex_Response_2.md
deleted file mode 100644
index 8b45de7..0000000
--- a/Codex_Response_2.md
+++ /dev/null
@@ -1,83 +0,0 @@
-No, I don’t need `SPEC.md` or `SOURCES.md` for this first report. I used the checked-out LXMF source directly. I did not edit `SPEC.md` or any other file.
-
-**LXMessage Serialized Structure**
-
-Source inspected: LXMF commit `fab12ad9bf9f997797034950f289fe41a79dcf5a`
-
-Core `lxmf_bytes` layout:
-
-```text
-destination_hash || source_hash || signature || msgpack_payload
-```
-
-Where `msgpack_payload` is:
-
-```text
-[
-  timestamp,
-  title,
-  content,
-  fields,
-  optional_stamp
-]
-```
-
-The fifth element is only present when a normal message stamp is generated and appended.
-
-| Field | Serialized position | Type / size | Source origin | Test vector confirmed |
-|---|---:|---|---|---|
-| `destination_hash` | bytes `0..15` | 16 bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:383), length from [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:40) and RNS 128-bit truncated hashes in [Reticulum.py](/usr/local/src/reticulum/Reticulum/RNS/Reticulum.py:146) | No |
-| `source_hash` | bytes `16..31` | 16 bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:384) | No |
-| `signature` | bytes `32..95` | 64 bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:378), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:385); RNS signature length from [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:59) and [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:80) | No |
-| `msgpack_payload` | bytes `96..end` | msgpack list | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362), packed at [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:381) | No |
-| `timestamp` | payload index `0` | Python float, normally msgpack float64 on this RNS umsgpack | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:357), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362); float64 behavior from [umsgpack.py](/usr/local/src/reticulum/Reticulum/RNS/vendor/umsgpack.py:1177) and [umsgpack.py](/usr/local/src/reticulum/Reticulum/RNS/vendor/umsgpack.py:325) | No |
-| `title` | payload index `1` | bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:130), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:193), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362) | No |
-| `content` | payload index `2` | bytes | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:135), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:202), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362) | No |
-| `fields` | payload index `3` | dict, default `{}` | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:215), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:362) | No |
-| `stamp` | payload index `4`, optional | bytes, only if generated | [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:371), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:373); extracted on unpack at [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:754) | No |
-
-**Hash And Signature**
-
-`message_id` / `hash` is:
-
-```text
-SHA256(destination_hash || source_hash || msgpack([timestamp, title, content, fields]))
-```
-
-Source: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:364), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:368), RNS SHA-256 at [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:238).
-
-The signature is over:
-
-```text
-destination_hash || source_hash || msgpack([timestamp, title, content, fields]) || message_id
-```
-
-Source: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:375), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:378), RNS signing at [Identity.py](/usr/local/src/reticulum/Reticulum/RNS/Identity.py:767).
-
-Important: the optional normal `stamp` is excluded from both `message_id` and signature. Unpack removes payload index `4` before recomputing hash/signature material: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:754).
-
-**Outer Representations**
-
-Direct/link/resource delivery uses full `self.packed` unchanged: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:636), [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:654).
-
-Opportunistic packet delivery omits the destination hash from the packet payload because the RNS packet destination already implies it:
-
-```text
-source_hash || signature || msgpack_payload
-```
-
-Source: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:633).
-
-Propagated and paper messages wrap/encrypt everything after the destination hash:
-
-```text
-destination_hash || encrypted(source_hash || signature || msgpack_payload)
-```
-
-Source: propagated [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:429), paper [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:449). Propagation transit additionally msgpacks `[time.time(), [lxmf_data]]`: [LXMessage.py](/usr/local/src/reticulum/LXMF/LXMF/LXMessage.py:436).
-
-**Notes**
-
-The README is not authoritative here: it describes payload order as timestamp, content, title, fields, but current code serializes timestamp, title, content, fields.
-
-No test vector confirmation exists in this checkout. There is no `tools/` directory and no tracked `SPEC.md` or `SOURCES.md`, so every “Test vector confirmed” entry above is marked `No`.
diff --git a/Codex_Response_3.md b/Codex_Response_3.md
deleted file mode 100644
index 6362cd8..0000000
--- a/Codex_Response_3.md
+++ /dev/null
@@ -1,27 +0,0 @@
-Task #2 completed in `/usr/local/src/reticulum/LXMF`.
-
-Created:
-
-- `tools/make_test_vectors.pl`
-- `tools/verify_examples.pl`
-- `tools/LXMF/MessagePack.pm`
-- `tools/README.md`
-- `examples/lxmf_message_minimal.hex`
-- `examples/lxmf_message_stamped.hex`
-- `examples/lxmf_message_vectors.json`
-
-The dependency-free Perl tooling verifies:
-
-- Fixed hash/signature positions
-- Payload order and MessagePack types
-- Message ID calculation
-- Optional stamp exclusion from message ID and signature input
-
-Validation passed:
-
-```text
-Reticulum umsgpack byte-for-byte cross-check passed
-All LXMessage test-vector checks passed.
-```
-
-The vectors regenerate deterministically. Signature bytes are documented placeholders; Ed25519 validation is not claimed. `SPEC.md` was not created or modified.
diff --git a/Codex_Response_4.md b/Codex_Response_4.md
deleted file mode 100644
index c1d9211..0000000
--- a/Codex_Response_4.md
+++ /dev/null
@@ -1,14 +0,0 @@
-Created [SPEC.md](/usr/local/src/reticulum/LXMF/SPEC.md) containing the evidence-limited `LXMessage Wire Format` section.
-
-It documents:
-
-- Core serialized layout and payload order
-- Message ID and signature-input calculations
-- Stamp exclusion behavior
-- Delivery representations
-- Exact source references and evidence commits
-- Explicit unresolved behavior
-
-Verification: `perl tools/verify_examples.pl` passed all checks.
-
-Only `SPEC.md` is untracked; no other files were changed.
diff --git a/PLANS.md b/PLANS.md
deleted file mode 100644
index cbaedc0..0000000
--- a/PLANS.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# LXMF Specification Investigation Plan
-
-Each investigation must include:
-
-1. Question being answered.
-2. Upstream files inspected.
-3. Exact version or commit.
-4. Relevant classes/functions/constants.
-5. Observed behavior.
-6. Whether behavior is normative, inferred, or unresolved.
-7. Test vectors needed.
-8. SPEC.md sections affected.
-9. Open questions.
diff --git a/SPEC.md b/SPEC.md
deleted file mode 100644
index a6dcc8e..0000000
--- a/SPEC.md
+++ /dev/null
@@ -1,153 +0,0 @@
-# LXMF Implementation-Derived Specification
-
-## LXMessage Wire Format
-
-This section describes behavior confirmed in the checked-in LXMF implementation
-and by the reproducible vectors under `examples/`. It does not assign normative
-requirements to independent implementations.
-
-Evidence baseline:
-
-- LXMF commit `d483d40d5cb994c6027802af1bf284dfeccc623b`
-- Reticulum commit `2646f673ee061135d7c351ef44dce290ccd7e06e`
-
-### Evidence status
-
-- **Source-confirmed** means the behavior is directly implemented by the
-  checked-in LXMF or Reticulum source.
-- **Vector-confirmed** means `perl tools/verify_examples.pl` confirms the
-  behavior for the deterministic minimal and stamped vectors.
-- Behavior not covered by either form of evidence is marked **Unresolved**.
-
-### Core serialized message
-
-`LXMessage.pack()` constructs `lxmf_bytes` by concatenating:
-
-```text
-destination_hash || source_hash || signature || packed_payload
-```
-
-| Part | Position | Confirmed representation | Evidence |
-|---|---:|---|---|
-| `destination_hash` | bytes `0..15` | 16 bytes | Source-confirmed: `LXMF/LXMessage.py:40`, `LXMF/LXMessage.py:383`; Vector-confirmed |
-| `source_hash` | bytes `16..31` | 16 bytes | Source-confirmed: `LXMF/LXMessage.py:384`; Vector-confirmed |
-| `signature` | bytes `32..95` | 64 bytes | Source-confirmed: `LXMF/LXMessage.py:41`, `LXMF/LXMessage.py:385`; Vector-confirmed position and length only |
-| `packed_payload` | bytes `96..end` | MessagePack array | Source-confirmed: `LXMF/LXMessage.py:362`, `LXMF/LXMessage.py:381-386`; Vector-confirmed |
-
-The 16-byte hash length derives from
-`RNS.Identity.TRUNCATED_HASHLENGTH // 8`. The checked-in Reticulum source sets
-the truncated hash length to 128 bits. The 64-byte signature length derives
-from `RNS.Identity.SIGLENGTH // 8`. See `RNS/Reticulum.py:146-147` and
-`RNS/Identity.py:80-83` in the evidence-baseline Reticulum checkout.
-
-### Payload
-
-For messages generated by `LXMessage.pack()`, the payload is:
-
-```text
-[
-  timestamp,
-  title,
-  content,
-  fields
-]
-```
-
-If a message stamp is available when packing, it is appended:
-
-```text
-[
-  timestamp,
-  title,
-  content,
-  fields,
-  stamp
-]
-```
-
-| Index | Name | Confirmed behavior | Evidence |
-|---:|---|---|---|
-| `0` | `timestamp` | Set from `time.time()` when not already set, then packed as the first payload value | Source-confirmed: `LXMF/LXMessage.py:357`, `LXMF/LXMessage.py:362`; Vector-confirmed as MessagePack float64 for the deterministic vectors |
-| `1` | `title` | Constructor string input is UTF-8 encoded to bytes; byte input is retained | Source-confirmed: `LXMF/LXMessage.py:130-133`, `LXMF/LXMessage.py:193-197`; Vector-confirmed as MessagePack binary |
-| `2` | `content` | Constructor string input is UTF-8 encoded to bytes; byte input is retained | Source-confirmed: `LXMF/LXMessage.py:135-136`, `LXMF/LXMessage.py:202-206`; Vector-confirmed as MessagePack binary |
-| `3` | `fields` | Constructor input must be a dictionary or `None`; `None` becomes an empty dictionary | Source-confirmed: `LXMF/LXMessage.py:138`, `LXMF/LXMessage.py:215-219`; Vector-confirmed for an empty MessagePack map |
-| `4` | `stamp` | Optional value appended after the four base payload values | Source-confirmed: `LXMF/LXMessage.py:371-373`; Vector-confirmed as MessagePack binary in the stamped vector |
-
-The payload order above is source- and vector-confirmed. It differs from the
-order stated in the upstream `README.md`, which lists content before title.
-
-### Message ID
-
-The message ID, also stored as `LXMessage.hash`, is:
-
-```text
-SHA-256(
-  destination_hash ||
-  source_hash ||
-  msgpack([timestamp, title, content, fields])
-)
-```
-
-The optional stamp is excluded from the MessagePack payload used to calculate
-the message ID. This is source-confirmed by both packing and unpacking behavior,
-and vector-confirmed by the minimal and stamped vectors producing the same
-message ID. See `LXMF/LXMessage.py:362-369` and
-`LXMF/LXMessage.py:754-764`. Reticulum defines `full_hash()` as SHA-256 at
-`RNS/Identity.py:238-246`.
-
-The message ID is not included in `lxmf_bytes`.
-
-### Signature input
-
-`LXMessage.pack()` requests a signature over:
-
-```text
-destination_hash ||
-source_hash ||
-msgpack([timestamp, title, content, fields]) ||
-message_id
-```
-
-The optional stamp is excluded from the signature input. The construction of
-the signature input is source-confirmed at `LXMF/LXMessage.py:375-378` and
-`LXMF/LXMessage.py:762-764`, and vector-confirmed.
-
-The deterministic vectors contain placeholder signature bytes. They confirm
-the signature position and input bytes, but do not confirm signing or signature
-validation.
-
-### Delivery representations
-
-The core `lxmf_bytes` representation is modified or wrapped for some delivery
-methods:
-
-| Delivery representation | Confirmed serialized data | Evidence |
-|---|---|---|
-| Direct packet or resource | Full `lxmf_bytes` | Source-confirmed: `LXMF/LXMessage.py:635-636`, `LXMF/LXMessage.py:653-654` |
-| Opportunistic packet | `lxmf_bytes` without the leading destination hash | Source-confirmed: `LXMF/LXMessage.py:633-634` |
-| Propagated message data | `destination_hash || encrypt(lxmf_bytes after destination_hash)` | Source-confirmed: `LXMF/LXMessage.py:429-436` |
-| Propagation transfer wrapper | MessagePack `[time.time(), [propagated_message_data]]` | Source-confirmed: `LXMF/LXMessage.py:436` |
-| Paper message data | `destination_hash || encrypt(lxmf_bytes after destination_hash)` | Source-confirmed: `LXMF/LXMessage.py:446-451` |
-| Paper URI | URL-safe Base64 of paper message data, without `=` padding, prefixed by `lxm://` | Source-confirmed: `LXMF/LXMessage.py:698-707` |
-
-These delivery representations are not covered by the current deterministic
-test vectors.
-
-### Unresolved behavior
-
-The following behavior is not established by the current source inspection and
-test-vector coverage:
-
-- Normative requirements for independent LXMF implementations.
-- Cross-implementation Ed25519 signature generation and validation.
-- Accepted signature encodings beyond the fixed 64-byte position generated by
-  the checked-in implementation.
-- A universal MessagePack float width for timestamps on every supported
-  platform. The deterministic vectors confirm float64 only for those vectors.
-- Interoperable constraints on the contents, key types, value types, ordering,
-  and nesting depth of `fields`.
-- Interoperable constraints on stamp length and encoding.
-- Required handling of malformed, truncated, non-canonical, or payload arrays
-  containing fewer than four or more than five entries.
-- Byte-for-byte vectors for opportunistic, propagated, paper, URI, encrypted,
-  or persisted-container representations.
diff --git a/examples/lxmf_message_minimal.hex b/examples/lxmf_message_minimal.hex
deleted file mode 100644
index 85f8d89..0000000
--- a/examples/lxmf_message_minimal.hex
+++ /dev/null
@@ -1 +0,0 @@
-000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f94cb41d954fc40100000c40a54657374207469746c65c41744657465726d696e6973746963204c584d4620626f647980
diff --git a/examples/lxmf_message_stamped.hex b/examples/lxmf_message_stamped.hex
deleted file mode 100644
index be6fc07..0000000
--- a/examples/lxmf_message_stamped.hex
+++ /dev/null
@@ -1 +0,0 @@
-000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f95cb41d954fc40100000c40a54657374207469746c65c41744657465726d696e6973746963204c584d4620626f647980c420a0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf
diff --git a/examples/lxmf_message_vectors.json b/examples/lxmf_message_vectors.json
deleted file mode 100644
index b60d155..0000000
--- a/examples/lxmf_message_vectors.json
+++ /dev/null
@@ -1,26 +0,0 @@
-{
-   "content_hex" : "44657465726d696e6973746963204c584d4620626f6479",
-   "description" : "Deterministic LXMessage packing vectors; signature bytes are placeholders",
-   "destination_hash_hex" : "000102030405060708090a0b0c0d0e0f",
-   "fields" : {},
-   "format" : "destination_hash || source_hash || signature || msgpack_payload",
-   "message_id_hex" : "55f497f6f2ea5d858eaff541a9fa77f9d5bdf57be75be4a94df65d1f9a7ffea3",
-   "minimal_lxmf_hex" : "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f94cb41d954fc40100000c40a54657374207469746c65c41744657465726d696e6973746963204c584d4620626f647980",
-   "payload_order" : [
-      "timestamp",
-      "title",
-      "content",
-      "fields",
-      "optional_stamp"
-   ],
-   "payload_with_stamp_hex" : "95cb41d954fc40100000c40a54657374207469746c65c41744657465726d696e6973746963204c584d4620626f647980c420a0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf",
-   "payload_without_stamp_hex" : "94cb41d954fc40100000c40a54657374207469746c65c41744657465726d696e6973746963204c584d4620626f647980",
-   "signature_hex" : "202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f",
-   "signature_valid" : false,
-   "signed_part_hex" : "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f94cb41d954fc40100000c40a54657374207469746c65c41744657465726d696e6973746963204c584d4620626f64798055f497f6f2ea5d858eaff541a9fa77f9d5bdf57be75be4a94df65d1f9a7ffea3",
-   "source_hash_hex" : "101112131415161718191a1b1c1d1e1f",
-   "stamp_hex" : "a0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf",
-   "stamped_lxmf_hex" : "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b5c5d5e5f95cb41d954fc40100000c40a54657374207469746c65c41744657465726d696e6973746963204c584d4620626f647980c420a0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7b8b9babbbcbdbebf",
-   "timestamp" : 1700000000.25,
-   "title_hex" : "54657374207469746c65"
-}
diff --git a/grep_results.txt b/grep_results.txt
deleted file mode 100644
index 52ae092..0000000
--- a/grep_results.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-./LXMF/Utilities/lxmd.py:DEFFERED_JOBS_DELAY = 10
-./LXMF/Utilities/lxmd.py:def create_default_config(configpath):
-./LXMF/Utilities/lxmd.py:def apply_config():
-./LXMF/Utilities/lxmd.py:def lxmf_delivery(lxm):
-./LXMF/Utilities/lxmd.py:def program_setup(configdir = None, rnsconfigdir = None, run_pn = False, on_inbound = None, verbosity = 0, quietness = 0, service = False):
-./LXMF/Utilities/lxmd.py:def jobs():
-./LXMF/Utilities/lxmd.py:def deferred_start_jobs():
-./LXMF/Utilities/lxmd.py:def _request_sync(identity, destination_hash, remote_identity, timeout=15, exit_on_fail=False):
-./LXMF/Utilities/lxmd.py:def request_sync(target, remote=None, configdir=None, rnsconfigdir=None, verbosity=0, quietness=0, timeout=15, identity_path=None):
-./LXMF/Utilities/lxmd.py:def _request_unpeer(identity, destination_hash, remote_identity, timeout=15, exit_on_fail=False):
-./LXMF/Utilities/lxmd.py:def request_unpeer(target, remote=None, configdir=None, rnsconfigdir=None, verbosity=0, quietness=0, timeout=15, identity_path=None):
-./LXMF/Utilities/lxmd.py:def query_status(identity, remote_identity=None, timeout=5, exit_on_fail=False):
-./LXMF/Utilities/lxmd.py:def get_status(remote=None, configdir=None, rnsconfigdir=None, verbosity=0, quietness=0, timeout=5,
-./LXMF/Utilities/lxmd.py:def _get_target_identity(remote=None, timeout=5):
-./LXMF/Utilities/lxmd.py:def _remote_init(configdir=None, rnsconfigdir=None, verbosity=0, quietness=0, identity_path=None):
-./LXMF/Utilities/lxmd.py:def main():
-./LXMF/LXMF.py:def display_name_from_app_data(app_data=None):
-./LXMF/LXMF.py:def stamp_cost_from_app_data(app_data=None):
-./LXMF/LXMF.py:def compression_support_from_app_data(app_data=None):
-./LXMF/LXMF.py:def pn_name_from_app_data(app_data=None):
-./LXMF/LXMF.py:def pn_stamp_cost_from_app_data(app_data=None):
-./LXMF/LXMF.py:def pn_announce_data_is_valid(data):
-./LXMF/LXStamper.py:def worker_context(ctx, stamp_cost, workblock, message_id):
-./LXMF/LXStamper.py:def stamp_workblock(material, expand_rounds=WORKBLOCK_EXPAND_ROUNDS):
-./LXMF/LXStamper.py:def stamp_value(workblock, stamp):
-./LXMF/LXStamper.py:def stamp_valid(stamp, target_cost, workblock):
-./LXMF/LXStamper.py:def validate_peering_key(peering_id, peering_key, target_cost):
-./LXMF/LXStamper.py:def validate_pn_stamp(transient_data, target_cost):
-./LXMF/LXStamper.py:def validate_pn_stamps_job_simple(transient_list, target_cost):
-./LXMF/LXStamper.py:def validate_pn_stamps_job_multip(transient_list, target_cost):
-./LXMF/LXStamper.py:def validate_pn_stamps(transient_list, target_cost):
-./LXMF/LXStamper.py:def generate_stamp(message_id, stamp_cost, expand_rounds=WORKBLOCK_EXPAND_ROUNDS):
-./LXMF/LXStamper.py:def cancel_work(message_id):
-./LXMF/LXStamper.py:def job_simple(stamp_cost, workblock, message_id):
-./LXMF/LXStamper.py:def job_linux_managed(stamp_cost, workblock, message_id):
-./LXMF/LXStamper.py:def job_linux(stamp_cost, workblock, message_id):
-./LXMF/LXStamper.py:def job_android(stamp_cost, workblock, message_id):
-./docs/example_receiver.py:def delivery_callback(message):
-./docs/example_sender.py:def delivery_callback(message):
diff --git a/tools/LXMF/MessagePack.pm b/tools/LXMF/MessagePack.pm
deleted file mode 100644
index 5ce8c39..0000000
--- a/tools/LXMF/MessagePack.pm
+++ /dev/null
@@ -1,181 +0,0 @@
-package LXMF::MessagePack;
-
-use strict;
-use warnings;
-use Exporter 'import';
-
-our @EXPORT_OK = qw(
-    pack_array
-    pack_bin
-    pack_float64
-    pack_map
-    parse_item
-);
-
-sub pack_float64 {
-    my ($value) = @_;
-    return "\xcb" . pack("d>", $value);
-}
-
-sub pack_bin {
-    my ($value) = @_;
-    my $length = length($value);
-
-    return "\xc4" . pack("C", $length) . $value if $length <= 0xff;
-    return "\xc5" . pack("n", $length) . $value if $length <= 0xffff;
-    return "\xc6" . pack("N", $length) . $value;
-}
-
-sub pack_array {
-    my (@items) = @_;
-    my $length = scalar @items;
-    my $header;
-
-    if ($length <= 15) {
-        $header = pack("C", 0x90 | $length);
-    }
-    elsif ($length <= 0xffff) {
-        $header = "\xdc" . pack("n", $length);
-    }
-    else {
-        $header = "\xdd" . pack("N", $length);
-    }
-
-    return $header . join("", @items);
-}
-
-sub pack_map {
-    my (@entries) = @_;
-    die "pack_map requires key/value byte-string pairs\n" if @entries % 2;
-
-    my $length = @entries / 2;
-    my $header;
-
-    if ($length <= 15) {
-        $header = pack("C", 0x80 | $length);
-    }
-    elsif ($length <= 0xffff) {
-        $header = "\xde" . pack("n", $length);
-    }
-    else {
-        $header = "\xdf" . pack("N", $length);
-    }
-
-    return $header . join("", @entries);
-}
-
-sub _take {
-    my ($bytes, $offset_ref, $length) = @_;
-    die "truncated MessagePack item\n" if $$offset_ref + $length > length($bytes);
-    my $value = substr($bytes, $$offset_ref, $length);
-    $$offset_ref += $length;
-    return $value;
-}
-
-sub _parse_length {
-    my ($bytes, $offset_ref, $width) = @_;
-    my $raw = _take($bytes, $offset_ref, $width);
-    return unpack("C", $raw) if $width == 1;
-    return unpack("n", $raw) if $width == 2;
-    return unpack("N", $raw);
-}
-
-sub parse_item {
-    my ($bytes, $offset_ref) = @_;
-    $offset_ref //= \my $offset;
-    $$offset_ref //= 0;
-
-    my $start = $$offset_ref;
-    my $code = unpack("C", _take($bytes, $offset_ref, 1));
-    my $item = { code => $code };
-
-    if ($code <= 0x7f) {
-        @$item{qw(type value)} = ("integer", $code);
-    }
-    elsif ($code >= 0xe0) {
-        @$item{qw(type value)} = ("integer", $code - 256);
-    }
-    elsif (($code & 0xf0) == 0x90) {
-        _parse_array($bytes, $offset_ref, $item, $code & 0x0f);
-    }
-    elsif (($code & 0xf0) == 0x80) {
-        _parse_map($bytes, $offset_ref, $item, $code & 0x0f);
-    }
-    elsif (($code & 0xe0) == 0xa0) {
-        my $length = $code & 0x1f;
-        @$item{qw(type value)} = ("string", _take($bytes, $offset_ref, $length));
-    }
-    elsif ($code == 0xc0) {
-        $item->{type} = "nil";
-        $item->{value} = undef;
-    }
-    elsif ($code == 0xc2 || $code == 0xc3) {
-        @$item{qw(type value)} = ("boolean", $code == 0xc3 ? 1 : 0);
-    }
-    elsif ($code == 0xca) {
-        @$item{qw(type value)} = ("float32", unpack("f>", _take($bytes, $offset_ref, 4)));
-    }
-    elsif ($code == 0xcb) {
-        @$item{qw(type value)} = ("float64", unpack("d>", _take($bytes, $offset_ref, 8)));
-    }
-    elsif ($code >= 0xc4 && $code <= 0xc6) {
-        my $width = 1 << ($code - 0xc4);
-        my $length = _parse_length($bytes, $offset_ref, $width);
-        @$item{qw(type value)} = ("binary", _take($bytes, $offset_ref, $length));
-    }
-    elsif ($code >= 0xcc && $code <= 0xcf) {
-        my @formats = ("C", "n", "N", "Q>");
-        my @widths = (1, 2, 4, 8);
-        my $index = $code - 0xcc;
-        @$item{qw(type value)} = (
-            "integer",
-            unpack($formats[$index], _take($bytes, $offset_ref, $widths[$index])),
-        );
-    }
-    elsif ($code >= 0xd0 && $code <= 0xd3) {
-        my @formats = ("c", "s>", "l>", "q>");
-        my @widths = (1, 2, 4, 8);
-        my $index = $code - 0xd0;
-        @$item{qw(type value)} = (
-            "integer",
-            unpack($formats[$index], _take($bytes, $offset_ref, $widths[$index])),
-        );
-    }
-    elsif ($code == 0xd9 || $code == 0xda || $code == 0xdb) {
-        my $width = 1 << ($code - 0xd9);
-        my $length = _parse_length($bytes, $offset_ref, $width);
-        @$item{qw(type value)} = ("string", _take($bytes, $offset_ref, $length));
-    }
-    elsif ($code == 0xdc || $code == 0xdd) {
-        my $width = $code == 0xdc ? 2 : 4;
-        _parse_array($bytes, $offset_ref, $item, _parse_length($bytes, $offset_ref, $width));
-    }
-    elsif ($code == 0xde || $code == 0xdf) {
-        my $width = $code == 0xde ? 2 : 4;
-        _parse_map($bytes, $offset_ref, $item, _parse_length($bytes, $offset_ref, $width));
-    }
-    else {
-        die sprintf("unsupported MessagePack code 0x%02x at offset %d\n", $code, $start);
-    }
-
-    $item->{start} = $start;
-    $item->{end} = $$offset_ref;
-    $item->{raw} = substr($bytes, $start, $$offset_ref - $start);
-    return $item;
-}
-
-sub _parse_array {
-    my ($bytes, $offset_ref, $item, $length) = @_;
-    $item->{type} = "array";
-    $item->{items} = [map { parse_item($bytes, $offset_ref) } 1 .. $length];
-}
-
-sub _parse_map {
-    my ($bytes, $offset_ref, $item, $length) = @_;
-    $item->{type} = "map";
-    $item->{entries} = [
-        map { [parse_item($bytes, $offset_ref), parse_item($bytes, $offset_ref)] } 1 .. $length
-    ];
-}
-
-1;
diff --git a/tools/README.md b/tools/README.md
deleted file mode 100644
index 75538fa..0000000
--- a/tools/README.md
+++ /dev/null
@@ -1,32 +0,0 @@
-# LXMessage Test-Vector Tooling
-
-The scripts in this directory verify the implementation-derived LXMessage
-packing behavior described in `Code_Response_1.md`.
-
-They use only Perl core modules. The local `LXMF::MessagePack` module implements
-the MessagePack subset needed to generate the vectors and parse their complete
-payloads.
-
-Generate deterministic vectors:
-
-```sh
-perl tools/make_test_vectors.pl
-```
-
-Verify the vectors:
-
-```sh
-perl tools/verify_examples.pl
-```
-
-The vectors confirm:
-
-- the 16-byte destination hash, 16-byte source hash, and 64-byte signature
-  positions;
-- payload order `[timestamp, title, content, fields, optional_stamp]`;
-- float64 timestamp and binary title/content/stamp encodings;
-- the message ID calculation;
-- exclusion of the optional stamp from the message ID and signature input.
-
-The signature bytes are deterministic placeholders. These vectors do not claim
-to verify Ed25519 signing or signature validation.
diff --git a/tools/make_test_vectors.pl b/tools/make_test_vectors.pl
deleted file mode 100755
index 8d4385b..0000000
--- a/tools/make_test_vectors.pl
+++ /dev/null
@@ -1,76 +0,0 @@
-#!/usr/bin/env perl
-
-use strict;
-use warnings;
-use Digest::SHA qw(sha256);
-use FindBin qw($Bin);
-use File::Path qw(make_path);
-use JSON::PP;
-use lib "$Bin";
-use LXMF::MessagePack qw(pack_array pack_bin pack_float64 pack_map);
-
-my $output_dir = "$Bin/../examples";
-make_path($output_dir);
-
-my $destination_hash = pack("C*", 0x00 .. 0x0f);
-my $source_hash = pack("C*", 0x10 .. 0x1f);
-my $signature = pack("C*", 0x20 .. 0x5f);
-my $stamp = pack("C*", 0xa0 .. 0xbf);
-
-my $timestamp = 1_700_000_000.25;
-my $title = "Test title";
-my $content = "Deterministic LXMF body";
-my $fields = pack_map();
-
-my @required_items = (
-    pack_float64($timestamp),
-    pack_bin($title),
-    pack_bin($content),
-    $fields,
-);
-
-my $payload = pack_array(@required_items);
-my $stamped_payload = pack_array(@required_items, pack_bin($stamp));
-my $message_id = sha256($destination_hash . $source_hash . $payload);
-my $signed_part = $destination_hash . $source_hash . $payload . $message_id;
-
-my $minimal = $destination_hash . $source_hash . $signature . $payload;
-my $stamped = $destination_hash . $source_hash . $signature . $stamped_payload;
-
-write_hex("$output_dir/lxmf_message_minimal.hex", $minimal);
-write_hex("$output_dir/lxmf_message_stamped.hex", $stamped);
-
-my $manifest = {
-    description => "Deterministic LXMessage packing vectors; signature bytes are placeholders",
-    format => "destination_hash || source_hash || signature || msgpack_payload",
-    payload_order => [qw(timestamp title content fields optional_stamp)],
-    destination_hash_hex => unpack("H*", $destination_hash),
-    source_hash_hex => unpack("H*", $source_hash),
-    signature_hex => unpack("H*", $signature),
-    signature_valid => JSON::PP::false,
-    timestamp => $timestamp,
-    title_hex => unpack("H*", $title),
-    content_hex => unpack("H*", $content),
-    fields => {},
-    stamp_hex => unpack("H*", $stamp),
-    payload_without_stamp_hex => unpack("H*", $payload),
-    payload_with_stamp_hex => unpack("H*", $stamped_payload),
-    message_id_hex => unpack("H*", $message_id),
-    signed_part_hex => unpack("H*", $signed_part),
-    minimal_lxmf_hex => unpack("H*", $minimal),
-    stamped_lxmf_hex => unpack("H*", $stamped),
-};
-
-open my $json_fh, ">:raw", "$output_dir/lxmf_message_vectors.json"
-    or die "cannot write vector manifest: $!\n";
-print {$json_fh} JSON::PP->new->canonical->pretty->encode($manifest);
-close $json_fh;
-
-print "Generated deterministic LXMessage vectors in $output_dir\n";
-
-sub write_hex {
-    my ($path, $bytes) = @_;
-    open my $fh, ">:raw", $path or die "cannot write $path: $!\n";
-    print {$fh} unpack("H*", $bytes), "\n";
-    close $fh;
-}
diff --git a/tools/verify_examples.pl b/tools/verify_examples.pl
deleted file mode 100755
index 0f86e67..0000000
--- a/tools/verify_examples.pl
+++ /dev/null
@@ -1,88 +0,0 @@
-#!/usr/bin/env perl
-
-use strict;
-use warnings;
-use Digest::SHA qw(sha256);
-use FindBin qw($Bin);
-use JSON::PP;
-use lib "$Bin";
-use LXMF::MessagePack qw(pack_array parse_item);
-
-my $examples_dir = "$Bin/../examples";
-my $manifest = read_json("$examples_dir/lxmf_message_vectors.json");
-my $minimal = read_hex("$examples_dir/lxmf_message_minimal.hex");
-my $stamped = read_hex("$examples_dir/lxmf_message_stamped.hex");
-
-verify_lxmessage("minimal", $minimal, $manifest, 4);
-verify_lxmessage("stamped", $stamped, $manifest, 5);
-
-check(unpack("H*", $minimal) eq $manifest->{minimal_lxmf_hex}, "minimal full bytes match manifest");
-check(unpack("H*", $stamped) eq $manifest->{stamped_lxmf_hex}, "stamped full bytes match manifest");
-
-print "All LXMessage test-vector checks passed.\n";
-
-sub verify_lxmessage {
-    my ($name, $bytes, $expected, $expected_count) = @_;
-
-    check(length($bytes) > 96, "$name vector has fixed prefix and payload");
-    my $destination_hash = substr($bytes, 0, 16);
-    my $source_hash = substr($bytes, 16, 16);
-    my $signature = substr($bytes, 32, 64);
-    my $packed_payload = substr($bytes, 96);
-
-    check(unpack("H*", $destination_hash) eq $expected->{destination_hash_hex}, "$name destination hash");
-    check(unpack("H*", $source_hash) eq $expected->{source_hash_hex}, "$name source hash");
-    check(unpack("H*", $signature) eq $expected->{signature_hex}, "$name signature position and length");
-
-    my $offset = 0;
-    my $payload = parse_item($packed_payload, \$offset);
-    check($offset == length($packed_payload), "$name payload consumes all remaining bytes");
-    check($payload->{type} eq "array", "$name payload is a MessagePack array");
-    check(@{$payload->{items}} == $expected_count, "$name payload has $expected_count entries");
-
-    my @items = @{$payload->{items}};
-    check($items[0]{type} eq "float64", "$name payload[0] timestamp is float64");
-    check($items[0]{value} == $expected->{timestamp}, "$name payload[0] timestamp value");
-    check($items[1]{type} eq "binary", "$name payload[1] title is binary");
-    check(unpack("H*", $items[1]{value}) eq $expected->{title_hex}, "$name payload[1] title value");
-    check($items[2]{type} eq "binary", "$name payload[2] content is binary");
-    check(unpack("H*", $items[2]{value}) eq $expected->{content_hex}, "$name payload[2] content value");
-    check($items[3]{type} eq "map", "$name payload[3] fields is a map");
-    check(@{$items[3]{entries}} == 0, "$name payload[3] fields map is empty");
-
-    my $unstamped_payload = pack_array(map { $_->{raw} } @items[0 .. 3]);
-    my $message_id = sha256($destination_hash . $source_hash . $unstamped_payload);
-    my $signed_part = $destination_hash . $source_hash . $unstamped_payload . $message_id;
-
-    check(unpack("H*", $unstamped_payload) eq $expected->{payload_without_stamp_hex}, "$name canonical unstamped payload");
-    check(unpack("H*", $message_id) eq $expected->{message_id_hex}, "$name message ID excludes optional stamp");
-    check(unpack("H*", $signed_part) eq $expected->{signed_part_hex}, "$name signature input excludes optional stamp");
-
-    if ($expected_count == 5) {
-        check($items[4]{type} eq "binary", "$name payload[4] stamp is binary");
-        check(unpack("H*", $items[4]{value}) eq $expected->{stamp_hex}, "$name payload[4] stamp value");
-    }
-}
-
-sub read_json {
-    my ($path) = @_;
-    open my $fh, "<:raw", $path or die "cannot read $path: $!\n";
-    local $/;
-    return JSON::PP->new->decode(<$fh>);
-}
-
-sub read_hex {
-    my ($path) = @_;
-    open my $fh, "<:raw", $path or die "cannot read $path: $!\n";
-    local $/;
-    my $hex = <$fh>;
-    $hex =~ s/\s+//g;
-    die "$path contains non-hexadecimal data\n" if $hex =~ /[^0-9a-fA-F]/;
-    return pack("H*", $hex);
-}
-
-sub check {
-    my ($condition, $description) = @_;
-    die "not ok - $description\n" unless $condition;
-    print "ok - $description\n";
-}