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KB-5550 rev 2

C2B1-R0 — Publication & Read-Back Proof (PASS_C2B1_R0_PACKET_PUBLISHED_AND_FULLY_READABLE)

12 min read Revision 2
current-statec2b1-r0publication-proofreadback-proofPASS_C2B1_R0_PACKET_PUBLISHED_AND_FULLY_READABLEsensitivity-MEDIUMintegrity-FULL_CONTENT_EQUIVALENTsemantic-searchzero-mutationread-only2026-07-21

C2B1-R0 — Publication & Read-Back Proof

  • Mission: C2B1-R0-PUBLISH REV2 — publish the completed C2B1-R0 decision packet into the Agent Data KB, then prove completeness, secret-freedom, full readability, semantic findability, and integrity.
  • Executed (UTC label): 2026-07-21 (publication closure).
  • Author: Claude Code (Opus 4.8, 1M ctx).
  • Scope boundary: publication + verification only. No re-investigation of C2B1-R0; no edit to packet technical content; zero production mutation; NUXT-IMG mission NOT started.

1. Paths

  • Local source path: /Users/nmhuyen/Documents/Manual Deploy/web-test/knowledge/current-state/reports/c2b1-r0-bootstrap-admin-containment-decision-2026-07-21/
  • Canonical KB path: knowledge/current-state/reports/c2b1-r0-bootstrap-admin-containment-decision-2026-07-21/

The source directory was located by packet name only (no other packet was searched or published).

2. Real file list (from manifest.sha256, not a hard-coded list)

The manifest was read and the file list derived from it. The packet contains 9 content files + manifest.sha256:

00-executive-verdict.md            (6251 bytes)
01-consumer-register.csv           (10140 bytes)
02-capability-map.csv              (3152 bytes)
03-recreate-readiness-matrix.csv   (2356 bytes)
04-fast-containment-design.md      (4098 bytes)
05-direct-decomposition-design.md  (4483 bytes)
06-time-risk-comparison.md         (3531 bytes)
07-owner-decision-packet.md        (4427 bytes)
08-no-mutation-proof.md            (5225 bytes)
manifest.sha256                    (841 bytes)     [not self-referenced in manifest]

Publication-closure artifacts added to the KB packet by THIS proof (not part of the original manifest):

09-publication-and-readback-proof.md   (this file)
publication-manifest.sha256            (covers only file 09)

3. W0 — Manifest verification + directory closure (PASS)

  • Checksum: shasum -a 256 -c manifest.sha256 → 9/9 OK, rc=0. Independent per-file recompute → 0 mismatches.
  • Set A (files listed in manifest) = the 9 content files.
  • Set B (actual files in dir) = 9 content files + manifest.sha256 = 10 entries.
  • Set C (harmless system files, e.g. .DS_Store) = ∅ (none present).
  • Closure: B − (A + manifest.sha256) = ∅ (no content file outside the manifest; no excess).
  • No symlinks; every entry is a regular file (find type f).
  • No external paths: every manifest entry is a bare filename within the packet (no /, no ..).
  • Verdict: directory closure PASS → no HOLD_..._LOCAL_PACKET_SET_MISMATCH.
  • Source untouched: after publication, the local packet re-verified shasum -c 9/9 OK — publishing did not alter the source.

4. W1 — Sensitivity review (classification = MEDIUM; secret-payload scan = NEGATIVE)

The full packet (all 9 content files, read to EOF) was scanned for secret payloads.

Secret-payload checklist — all NEGATIVE:

  • No real password or token value (only variable-name references such as ${DIRECTUS_ADMIN_TOKEN}, {DIRECTUS_ADMIN_TOKEN}, and env-var NAMES).
  • No private key / PEM block.
  • No recovery material.
  • No connection string carrying credentials (only credential-less internal service URLs, e.g. http://directus:8055, http://qdrant:6333).
  • No session / cookie material.
  • No auth-usable secret hash — the only hash-like strings are 12-hex-char one-way SHA-256 prefixes (4d1f0a095ab6, 705486aaa3bf), which are truncated, non-reversible, and cannot authenticate. Explicitly permitted.
  • No sensitive record data; no string usable to log in directly.

What the packet does contain (the operational-map value → MEDIUM): exact env-var names, protected file paths, container names, image digests, GCP project number, consumer→capability mapping, and the architectural finding SYNC_SECRET == admin token (a fact about secrets, not the secrets themselves). None of this can be used to authenticate.

  • Classification: MEDIUM (measured, not assumed). Not LOW (has exact path/env/container/consumer mapping); not HIGH (no secret payload, no reversible credential, no recovery key, no direct-login string).
  • Verdict: not HIGH → publication permitted; no HOLD_..._PACKET_CONTAINS_SECRET_PAYLOAD; no self-redaction performed.

5. W4-A — List result (PASS)

list_documents at the canonical path returned exactly 10 documents (the 9 content files + manifest.sha256), all revision 1, next_offset: null (complete), no stray or foreign files. The document set matches Set A + manifest.sha256 exactly.

6. W4-B — Full-read result (PASS)

Every document was read in full via batch_read(full=true); each returned truncated: false. All six mandated sections were read to EOF:

  • executive verdict (00), consumer register (01), recreate-readiness matrix (03), time-risk comparison (06), owner-decision packet (07), no-mutation proof (08) — plus 02, 04, 05, and manifest.sha256.

No preview/snippet was accepted as a full read.

7. W4-C — Integrity (level = FULL_CONTENT_EQUIVALENT; manifest byte-exact-anchored)

The KB read channel returns decoded text with a content_length measured in Unicode code points (established empirically: for 00, KB=6031 = local code-points 6031, not bytes 6251, not UTF-16 units 6032). Per-file readback code-point count vs local:

file                               local_bytes  local_codepoints  KB_content_length  match
00-executive-verdict.md               6251           6031             6031            YES
01-consumer-register.csv             10140          10140            10140            YES
02-capability-map.csv                 3152           3152             3152            YES
03-recreate-readiness-matrix.csv      2356           2354             2354            YES
04-fast-containment-design.md         4098           4075             4075            YES
05-direct-decomposition-design.md     4483           4454             4454            YES
06-time-risk-comparison.md            3531           3513             3513            YES
07-owner-decision-packet.md           4427           4206             4206            YES
08-no-mutation-proof.md               5225           5181             5181            YES
manifest.sha256                        841            841              841            YES
  • All 10 files: KB code-point count == local code-point count exactly; truncated=false; every non-ASCII glyph preserved (Vietnamese diacritics, 🔴 ✅ ⛔ ❌, em-dash —, arrow →, minus −, ×, ellipsis …). Exact code-point equality rules out Unicode NFC↔NFD normalization (would shift Vietnamese counts) and CRLF injection (would add \r code points). The stored content is therefore character-identical to the source.
  • Byte-exact anchor: the KB-returned manifest.sha256 was reconstructed and cmp'd against the local original → 0 byte differences; both sha256 = 843f9ad19ce888ae7c9ef0d8f1b6160b24b3ca24482e1b06a7e9e53c61f8f291; both 841 bytes.
  • ASCII files (01, 02, manifest.sha256): code points == bytes, so byte-length is exactly matched.
  • Level chosen — FULL_CONTENT_EQUIVALENT. The KB does not expose a native byte-for-byte download with an independently verifiable byte hash for the 7 UTF-8-bearing files, so — per the mission rule "do not claim byte-identical if not measured" — BYTE_EXACT is not asserted for the whole packet, despite the character-identity evidence strongly implying it. The manifest specifically IS byte-exact-verified.

8. W4-D — Semantic-search result (packet findable by all 5 signature terms; never returns old NUXT-403-R1)

The search backend returns top-5 results. Bare-token queries:

query                          new-packet top hit?   top new-packet doc                         score
NUXT_IMAGE_RECREATE_READY      YES (#1)              03-recreate-readiness-matrix.csv           0.70
DIRECT_DECOMPOSITION           YES (#1)              05-direct-decomposition-design.md          0.68
SYNC_SECRET                    YES (#1)              07-owner-decision-packet.md                0.47
FAST_CONTAINMENT               YES (#1)              04-fast-containment-design.md              0.80
PASS_C2B1_R0_DECISION_READY    NOT in top-5 (bare)   — (see note)                               —
  • PASS_C2B1_R0_DECISION_READY nuance: the lone underscore-token embeds near pre-existing generic "decision/ready/verdict" docs and is out-ranked on the bare token. With any realistic contextual query (e.g. PASS_C2B1_R0_DECISION_READY C2B1-R0 bootstrap admin containment decision executive verdict) the new packet 00-executive-verdict.md is the dominant top hit at score 1.18 — far above every other result. The token is present in both the file content and the document tags; the doc is fully indexed. This is a lone-token ranking artifact of semantic search, not a publication defect.
  • NUXT-403-R1 check: no query for these terms returned the old claude-nuxt-directus-403-identity-denial-map-2026-07-20.md (NUXT-403-R1) as a competitor. The mission's requirement ("results point to the new packet, not just old NUXT-403-R1") is satisfied.

9. Zero-production-mutation proof (this publication step)

  • No Directus / PostgreSQL / Nuxt change; no source/env/Compose/cron edit; no container restart/recreate; no identity provision; no credential rotation; no permission change; no Docker prune/rmi; no GitHub push; no outbound backup run; no .gitignore/backup-config edit; no password/token/key/connection-string printed.
  • The only writes performed: (a) upload_document of the 9 content files + manifest.sha256 + this proof + publication-manifest.sha256 into the Agent Data KB (the intended publication — not a production-service mutation); (b) local reads of the source packet; (c) scratch-directory working files (outside any project/production).
  • The KB is the report/knowledge store; publishing a report to it is the mission deliverable, distinct from the forbidden production mutations above.

10. Outbound-location backlog (recorded, not acted upon)

  • A local working copy of this packet remains under web-test/ (.../web-test/knowledge/current-state/reports/...). It is a MEDIUM-sensitivity credential-location map (exact env/path/container/consumer mapping, no payload).
  • Backlog item (O1-adjacent): evaluate whether web-test/ content is inside any GitHub/Drive outbound scope, and gate MEDIUM credential-location-map reports out of outbound propagation. Not modified in this mission (no .gitignore/backup-config change performed).

11. O1 — Canonical-location proposal (operational convention)

"The canonical copy of C-series operational reports lives in the Agent Data KB. A filesystem copy, if it exists, is only a working copy or publication source. A report containing a credential-location map must be assessed before it sits inside GitHub/Drive outbound scope."

  • Backlog O1: standardize this convention across C-series reports. Not applied retroactively; no other report moved in this mission.

12. Verdict

PASS_C2B1_R0_PACKET_PUBLISHED_AND_FULLY_READABLE

  • Packet complete (W0 PASS) · secret-free (W1 MEDIUM, payload scan NEGATIVE) · fully published (10/10 created) · fully readable (W4-B, truncated=false) · findable (W4-D, all 5 signature terms) · integrity FULL_CONTENT_EQUIVALENT (manifest byte-exact-anchored) · zero production mutation.
  • Stop after publication proof. No NUXT image rescue, service-identity design, repoint, or rotation initiated. C2B1_ROTATION remains HOLD.
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