Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add elevanaltd/octave-mcp --skill octave-chattergit clone --depth 1 https://github.com/elevanaltd/octave-mcpWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/elevanaltd/octave-mcp/octave-chatter)<a href="https://agentmods.dev/skills/elevanaltd/octave-mcp/octave-chatter"><img src="https://agentmods.dev/badge/skills/elevanaltd/octave-mcp/octave-chatter/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/elevanaltd/octave-mcp/octave-chatter"><img src="https://agentmods.dev/badge/skills/elevanaltd/octave-mcp/octave-chatter.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00064 | $0.01982 |
| Opus 5 | $0.00032 | $0.00991 |
| Sonnet 5 | $0.00013 | $0.00396 |
| Haiku 4.5 | $0.00006 | $0.00198 |
Grade A, and why
octave-chatter scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- octave-chatter — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
===OCTAVE_CHATTER=== META: TYPE::SKILL VERSION::"1.1.0" STATUS::ACTIVE PURPOSE::"The chatter register — OCTAVE in message bodies, validated by the receiving model, never by octave_validate" AUDIENCE::"agents that read ∧ emit OCTAVE in conversation (anchor ceremonies, debate turns, cross-session messages) but never author .oct.md files" REQUIRES::[] RELATION::"octave-literacy §5 kernel ⊕ §2 operators, packaged standalone; file authoring → octave-literacy; tool receipts → octave-tool-reference" PRIMER::"OCTAVE_WIRE v1.3.0 — §4 below is its §1–§3 verbatim; canonical 554 tokens[cl100k_base] self-consistent; evidence base is v1.1 with 7 fewer rules; v1.3 UNTESTED until W3" KERNEL::"§5 = OCTAVE_WIRE FULL kernel, frozen 2026-09-05 — 138 tokens[cl100k_base, canonical]; the same string is stamped into workbench dispatch envelopes so hub kernel_only loads and dispatch never diverge; any edit re-opens its own count" PRIOR_ART::"octave-mcp thread 2026-01-30-octave-native-comms — RATIFIED across 3 models: a ~200-token primer enabled native OCTAVE output; an evidence point, not a ceiling — the 138-token kernel's SIZE is measured, its EFFICACY is untested until W3" KERNEL_SCOPE::"§5 covers the wire register only — file-syntax rules (no META on the wire → §1, no value on a §-header → §2, no chained ⇌ → §3) live in §1–§3 here and in octave-literacy §5; a kernel_only load of this skill gets wire rules, not file syntax, by design"
§1::REGISTER
FORMAL::".oct.md files ∧ closing anchors → parsed by octave_validate → octave-literacy governs"
WIRE::"message bodies → validated by the receiving model → this skill governs"
SPLIT_RULE::"FORMAL ⇌ WIRE is decided by WHO VALIDATES, not by grammar — the syntax is the same"
WIRE_DOES_NOT_NEED::[META_block, file_schema, canonicalisation, holographic_contracts, CANONICAL_SOURCE_paths]
WHY_WIRE_EXISTS::"measured relay test on v1.1: 45 facts, 0 wrong, 1 lost — every loss was an IDENTIFIER. Syntax was never the failure. Provenance ∧ identifiers ∧ hedges are the value; compression is a side effect."
§2::SYNTAX_KERNEL
// Same rules as octave-literacy §5 — restated so this skill loads alone
ASSIGNMENT::"KEY::value — no spaces around ::"
BLOCK::"KEY: then 2-space-indented children — for nested maps"
LIST::"[a,b,c] — never YAML bullets"
KEYS::"[A-Za-z_][A-Za-z0-9_]* — no bare numbers, no operator glyphs as keys"
LITERALS::"true false null lowercase; numbers bare; quote anything with spaces, special chars, or §"
SECTIONS::"§N::NAME opens a scope; a value on the header line is dropped"
PROSE::"unkeyed sentences are not OCTAVE — key them or make them // comments"
ENVELOPE::"===NAME=== … ===END=== optional on the wire; use it when the message must be quotable as a unit"
§3::OPERATORS
// Reference table — which forms exist. The wire policy (when ASCII is legal, what the canonicaliser does) is §4b::ASCII.
SYNTHESIS::"⊕ emergent whole — ASCII form: +"
TENSION::"⇌ binary opposition, never chained — ASCII form: vs (word boundaries required)"
FLOW::"→ causality ∨ sequence, right-associative — ASCII form: ->"
CONSTRAINT::"∧ joint condition, inside brackets ∨ quoted values — ASCII form: &"
ALT::"∨ alternative — ASCII form: the pipe character |"
CONCAT::"⧺ mechanical join — ASCII form: ~"
ANNOTATION::"NAME qualifies identity — HERMES"
CONSTRUCTOR::"NAME[args] parameterises — ENUM[a,b]"
IN_VALUES::"inside a quoted value only operators carry relations — <> and [] there are opaque text, never validated: SISYPHEAN in the primer is a gloss, who[role] is a slot; when a form must be checked by the parser, put it in a key"
§4::WIRE_PRIMER
// OCTAVE_WIRE v1.3.0 §1–§3 verbatim (ASCII wire form preserved — the canonicaliser leaves quoted-value ASCII alone). Do not edit here; edit the primer and re-freeze.
// Mythology = semantic zip, not decoration. HERMES = messenger. Meaning already in weights -> never literal, never a system name. First use in a thread carries its gloss, like this line.
§4a::WHY
LOSS::"prose across hops -> facts merge + provenance lost -> SISYPHEAN"
RISK::"structure without hedges -> ICARIAN<confident + wrong>"
§4b::HOW
RULE::"quote the phrase & drop stopwords & operators carry the connectives"
BAD::"cause_is_fixture_flake_affecting_auth_and_payments_rather_than_runner"
GOOD::"fixture flake -> auth + payments vs runner fault?" // ? = unverified; doubt lives here
VERB::"verb lives in the key, never in the arrow" // e.g. RENAMED::old -> new ; -> is cause or sequence only
TENSION::"vs = genuine opposition only -> a mismatch gets words: served 13 lines, actual 314"
KEEP::"numbers & IDs & SHAs & roles & hedges & reasons -> copied verbatim, never paraphrased"
SUM::"buckets total the whole -> 43 + 10 + 9 = 62"
COMPRESS::"words vs claims"
ASCII::"operators accept both forms: -> + vs & | on the wire; the canonicaliser normalises to unicode on write; vs needs word boundaries -> A vs B, never AvsB"
§4c::SHAPE
HEAD::"FROM::who[role] PROVENANCE::measured@sha | relayed | inferred"
STATE_FIELD::"every artifact says STATE::authored | installed | live"
TAIL::"ASK::one question | STATUS::OK|BLOCKED|DONE|NEED_INPUT"
ECHO::"a reply names UNCLEAR::[...] for what it could not resolve" // convention not rule; evidence 2 relay pairs, thin
ASK::"reply in this register -> your SEA receipt is your first wire message"
§5::ANCHOR_KERNEL
TARGET::auditable_OCTAVE_messages_between_agents
NEVER::[
paraphrase_an_id,
verb_in_the_arrow,
tension_for_mismatch,
doubt_without_a_home,
unkeyed_prose
]
MUST::[
"HEAD FROM + PROVENANCE + STATE; TAIL one ASK | STATUS",
"quote the phrase, drop stopwords, operators carry connectives",
"numbers IDs SHAs roles hedges verbatim; ? marks unverified",
"reply names UNCLEAR::[...]"
]
GATE::"Could the receiver act on this without asking what any ID or arrow meant?"
§6::EXAMPLE
// A wire message — no META, no file schema, HEAD ∧ TAIL present, one hedge with a home
MESSAGE:
===OCTAVE_WIRE=== FROM::octave-secretary[align-octave-skills] PROVENANCE::"measured@fd67ef2 -> 3 octave_validate probes" STATE::authored FINDING::"literacy 21,163 chars & 51% non-syntax -> §6/§7/§8 reallocated" RISK::"stale ~/.claude/skills copy -> drift repeats without sync?" // operator-owned; unverified UNCLEAR::[which_profile_control_tower_loads_first] ASK::"confirm kernel_only for control-tower profiles" ===END===
===END===
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- yesterday First seen · 103 lines · 64 tokens per session scan A a7ab179e798b
octave-chatter is a skill published in the GitHub repository elevanaltd/octave-mcp (55 stars, last pushed yesterday), licensed Apache-2.0. It adds 64 tokens to every session and 1,982 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-11.
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