frontend-patterns/research/bench/infospaces/local-first-authority-06/output/evaluations/source-review.md

Critique against the original evidence

Traceability and Faithful Paraphrase

• C01. Locator: Passage A

  • Pass: The paraphrase "In local-first software, the data stored on a user's local device (e.g., laptop, tablet, phone) is considered the primary copy" is a faithful restatement of the provided passage.
  • Artifact: C01
  • Claim: Paraphrase
  • Source Locator: Passage A

• C02. Locator: Passage A

  • Revise: The paraphrase "The local copy of data on a user's device is treated as the authoritative version" introduces the term "authoritative version," which is an interpretation of "primary copy" but not explicitly stated in the passage. While "primary" often implies authority, the critique's own "Unknowns" for C01 and C02 highlight this ambiguity. The original text only states "primary copy," not "authoritative version."
  • Artifact: C02
  • Claim: Paraphrase
  • Source Locator: Passage A

Competing Forces, Recurrence, Failure Modes, Relation Justification, Missing Evidence, Applicability

• General Assessment: The provided evidence is extremely narrow, consisting of a single sentence fragment. This severely limits the ability to assess competing forces, recurrence, or failure modes. The "Investigation question" and "Excerpt boundary" sections explicitly acknowledge these limitations.

• Missing Evidence (Persistence, Concurrency, Recovery):

  • Pass: The "Investigation question" correctly identifies the need for additional sources/passages to establish persistence, concurrency, and recovery to distinguish a primary local copy from a subordinate cache. This directly impacts applicability to VC-01 and VC-02.
  • Artifact: Investigation question
  • Claim: Need for additional sources
  • Source Locator: Editorial

• Applicability to VC-01 (server-authoritative transactional administration):

  • Unknown: The fragment "we treat the copy of the data on your local device... as the primary copy" directly contradicts the "server-authoritative" aspect of VC-01 if "primary" implies ultimate authority for all operations. However, without further context on how this "primary" status interacts with a server, its applicability is unclear. It could represent a local primary for some operations, with server authority for others. More evidence is needed to understand the scope of "primary."
  • Artifact: VC-01
  • Claim: Applicability
  • Source Locator: N/A (external scenario)

• Applicability to VC-02 (offline field notes):

  • Pass: The concept of a local device holding the "primary copy" aligns well with the needs of offline field notes, where local availability and integrity are paramount. This fragment supports the idea that local data can be primary, which is a foundational concept for VC-02. However, it doesn't provide implementation details.
  • Artifact: VC-02
  • Claim: Applicability
  • Source Locator: N/A (external scenario)

Unsupported Assertions, Invalid Endpoints, Conflated Prerequisites, Contradictions, Negative Evidence

• Unsupported Assertions:

  • C02's "authoritative version": As noted above, this is an interpretation, not a direct assertion from the source.
  • Artifact: C02
  • Claim: Paraphrase
  • Source Locator: Passage A

• Invalid Endpoints / Relation Justification:

  • Pass: The "Relation proposals" are correctly empty, as the evidence is insufficient to establish any meaningful relations between claims or to external concepts.
  • Artifact: Relation proposals
  • Claim: Empty set
  • Source Locator: N/A

• Candidate Bundle Assessment:

  • Pass: The assessment that "No candidates are justified by the provided evidence" is correct. The fragment is too limited to describe a recurring solution or pattern.
  • Artifact: Candidate bundle
  • Claim: Justification
  • Source Locator: N/A

Candidate Evidence Ledger Check

• Pass: The claims C01 and C02 correctly reference "Passage A" as their locator, which is the only provided source text. The ledger is consistent with the prose.

Proposed Disposition

Revise.

The primary reason for revision is the interpretive leap in C02 from "primary copy" to "authoritative version." While often related, the distinction is crucial when evaluating a single sentence fragment. The critique itself highlights the ambiguity of "primary" in its "Unknowns" sections, making the assertion in C02 premature.

Evidence needed before admission:

1. Definition of "Primary Copy": Additional passages from SRC-0002 or other sources that elaborate on what "primary" entails in the context of local-first software, specifically addressing:
   • Conflict resolution authority.
   • Guarantees of persistence (e.g., is it the only copy guaranteed to persist, or just the first?).
   • Role in recovery (e.g., is it the source for restoring other copies?).
   • How it interacts with cloud/server copies (e.g., is the server a replica, a backup, or does it hold a different kind of authority?).
2. Scope of "Primary": Clarification on whether the local copy is primary for all data operations or only specific types (e.g., local edits vs. global state).
3. Mechanisms for "Primary" Status: Details on how the local copy's primary status is maintained, especially in the presence of network connectivity, multiple devices, and potential conflicts.